./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label03.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d 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/combinations/pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label03.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 d295d755d44127829d46828e377e22a38631a635ad7a6b559c09be673317721a --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 17:08:35,427 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:08:35,493 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 17:08:35,520 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:08:35,520 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:08:35,553 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:08:35,554 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:08:35,555 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:08:35,556 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:08:35,557 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:08:35,558 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:08:35,558 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:08:35,559 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:08:35,559 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:08:35,559 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:08:35,560 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:08:35,560 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:08:35,560 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:08:35,561 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:08:35,561 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:08:35,561 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:08:35,562 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:08:35,562 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:08:35,562 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:08:35,562 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:08:35,563 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:08:35,563 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:08:35,563 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:08:35,564 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:08:35,564 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:08:35,564 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:08:35,564 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:08:35,564 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:08:35,565 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:08:35,565 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:08:35,568 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:08:35,568 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:08:35,568 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:08:35,569 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:08:35,569 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:08:35,569 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:08:35,569 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:08:35,569 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d295d755d44127829d46828e377e22a38631a635ad7a6b559c09be673317721a [2024-11-08 17:08:35,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:08:35,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:08:35,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:08:35,863 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:08:35,864 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:08:35,865 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label03.c [2024-11-08 17:08:37,353 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:08:37,869 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:08:37,871 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label03.c [2024-11-08 17:08:37,912 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/134642819/1307ee128f174d1a928cdc2ac328f929/FLAG0c6a9e141 [2024-11-08 17:08:37,932 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/134642819/1307ee128f174d1a928cdc2ac328f929 [2024-11-08 17:08:37,935 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:08:37,938 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:08:37,940 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:08:37,940 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:08:37,945 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:08:37,946 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:08:37" (1/1) ... [2024-11-08 17:08:37,948 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cbf3cdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:08:37, skipping insertion in model container [2024-11-08 17:08:37,948 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:08:37" (1/1) ... [2024-11-08 17:08:38,058 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:08:38,417 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label03.c[20426,20439] [2024-11-08 17:08:38,451 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label03.c[22763,22776] [2024-11-08 17:08:39,127 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:08:39,139 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:08:39,185 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label03.c[20426,20439] [2024-11-08 17:08:39,194 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label03.c[22763,22776] [2024-11-08 17:08:39,596 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:08:39,626 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:08:39,627 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:08:39 WrapperNode [2024-11-08 17:08:39,629 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:08:39,630 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:08:39,630 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:08:39,631 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:08:39,638 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:08:39" (1/1) ... [2024-11-08 17:08:39,684 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:08:39" (1/1) ... [2024-11-08 17:08:40,041 INFO L138 Inliner]: procedures = 38, calls = 24, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 5221 [2024-11-08 17:08:40,042 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:08:40,042 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:08:40,043 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:08:40,043 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:08:40,054 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:08:39" (1/1) ... [2024-11-08 17:08:40,055 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:08:39" (1/1) ... [2024-11-08 17:08:40,112 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:08:39" (1/1) ... [2024-11-08 17:08:40,322 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]. [2024-11-08 17:08:40,323 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:08:39" (1/1) ... [2024-11-08 17:08:40,323 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:08:39" (1/1) ... [2024-11-08 17:08:40,587 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:08:39" (1/1) ... [2024-11-08 17:08:40,615 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:08:39" (1/1) ... [2024-11-08 17:08:40,644 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:08:39" (1/1) ... [2024-11-08 17:08:40,667 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:08:39" (1/1) ... [2024-11-08 17:08:40,747 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:08:40,749 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:08:40,749 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:08:40,749 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:08:40,750 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:08:39" (1/1) ... [2024-11-08 17:08:40,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:08:40,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 17:08:40,784 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) [2024-11-08 17:08:40,786 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 [2024-11-08 17:08:40,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:08:40,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:08:40,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:08:40,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:08:40,952 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:08:40,954 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:08:45,266 INFO L? ?]: Removed 754 outVars from TransFormulas that were not future-live. [2024-11-08 17:08:45,266 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:08:45,310 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:08:45,311 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 17:08:45,311 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:08:45 BoogieIcfgContainer [2024-11-08 17:08:45,311 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:08:45,315 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:08:45,315 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:08:45,318 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:08:45,318 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:08:37" (1/3) ... [2024-11-08 17:08:45,319 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60cf985f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:08:45, skipping insertion in model container [2024-11-08 17:08:45,319 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:08:39" (2/3) ... [2024-11-08 17:08:45,320 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60cf985f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:08:45, skipping insertion in model container [2024-11-08 17:08:45,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:08:45" (3/3) ... [2024-11-08 17:08:45,321 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label03.c [2024-11-08 17:08:45,337 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:08:45,338 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 17:08:45,439 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:08:45,448 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;@23c8c0b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:08:45,448 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 17:08:45,460 INFO L276 IsEmpty]: Start isEmpty. Operand has 930 states, 927 states have (on average 1.9039913700107876) internal successors, (1765), 929 states have internal predecessors, (1765), 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) [2024-11-08 17:08:45,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-08 17:08:45,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:08:45,470 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:08:45,470 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:08:45,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:08:45,477 INFO L85 PathProgramCache]: Analyzing trace with hash -794852571, now seen corresponding path program 1 times [2024-11-08 17:08:45,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:08:45,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055670511] [2024-11-08 17:08:45,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:08:45,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:08:45,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:45,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:08:45,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:08:45,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055670511] [2024-11-08 17:08:45,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055670511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:08:45,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:08:45,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:08:45,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654135402] [2024-11-08 17:08:45,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:08:45,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:08:45,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:08:45,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:08:45,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:08:45,862 INFO L87 Difference]: Start difference. First operand has 930 states, 927 states have (on average 1.9039913700107876) internal successors, (1765), 929 states have internal predecessors, (1765), 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 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 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) [2024-11-08 17:08:49,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:08:49,295 INFO L93 Difference]: Finished difference Result 2575 states and 4940 transitions. [2024-11-08 17:08:49,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:08:49,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 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 20 [2024-11-08 17:08:49,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:08:49,317 INFO L225 Difference]: With dead ends: 2575 [2024-11-08 17:08:49,317 INFO L226 Difference]: Without dead ends: 1615 [2024-11-08 17:08:49,323 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 [2024-11-08 17:08:49,326 INFO L432 NwaCegarLoop]: 712 mSDtfsCounter, 997 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2337 mSolverCounterSat, 696 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 997 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 3033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 696 IncrementalHoareTripleChecker+Valid, 2337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-08 17:08:49,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [997 Valid, 723 Invalid, 3033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [696 Valid, 2337 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-08 17:08:49,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states. [2024-11-08 17:08:49,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 1615. [2024-11-08 17:08:49,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1615 states, 1613 states have (on average 1.6187228766274024) internal successors, (2611), 1614 states have internal predecessors, (2611), 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) [2024-11-08 17:08:49,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1615 states to 1615 states and 2611 transitions. [2024-11-08 17:08:49,448 INFO L78 Accepts]: Start accepts. Automaton has 1615 states and 2611 transitions. Word has length 20 [2024-11-08 17:08:49,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:08:49,449 INFO L471 AbstractCegarLoop]: Abstraction has 1615 states and 2611 transitions. [2024-11-08 17:08:49,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 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) [2024-11-08 17:08:49,449 INFO L276 IsEmpty]: Start isEmpty. Operand 1615 states and 2611 transitions. [2024-11-08 17:08:49,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-08 17:08:49,451 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:08:49,451 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:08:49,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:08:49,452 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:08:49,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:08:49,452 INFO L85 PathProgramCache]: Analyzing trace with hash 714815507, now seen corresponding path program 1 times [2024-11-08 17:08:49,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:08:49,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455537168] [2024-11-08 17:08:49,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:08:49,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:08:49,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:49,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:08:49,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:08:49,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455537168] [2024-11-08 17:08:49,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455537168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:08:49,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:08:49,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:08:49,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169441449] [2024-11-08 17:08:49,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:08:49,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:08:49,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:08:49,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:08:49,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:08:49,675 INFO L87 Difference]: Start difference. First operand 1615 states and 2611 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2024-11-08 17:08:49,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:08:49,770 INFO L93 Difference]: Finished difference Result 1673 states and 2702 transitions. [2024-11-08 17:08:49,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:08:49,771 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 28 [2024-11-08 17:08:49,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:08:49,777 INFO L225 Difference]: With dead ends: 1673 [2024-11-08 17:08:49,777 INFO L226 Difference]: Without dead ends: 1615 [2024-11-08 17:08:49,778 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:08:49,779 INFO L432 NwaCegarLoop]: 1630 mSDtfsCounter, 0 mSDsluCounter, 4835 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6465 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:08:49,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6465 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:08:49,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states. [2024-11-08 17:08:49,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 1615. [2024-11-08 17:08:49,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1615 states, 1613 states have (on average 1.5877247365158091) internal successors, (2561), 1614 states have internal predecessors, (2561), 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) [2024-11-08 17:08:49,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1615 states to 1615 states and 2561 transitions. [2024-11-08 17:08:49,819 INFO L78 Accepts]: Start accepts. Automaton has 1615 states and 2561 transitions. Word has length 28 [2024-11-08 17:08:49,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:08:49,820 INFO L471 AbstractCegarLoop]: Abstraction has 1615 states and 2561 transitions. [2024-11-08 17:08:49,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2024-11-08 17:08:49,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1615 states and 2561 transitions. [2024-11-08 17:08:49,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-08 17:08:49,827 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:08:49,827 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:08:49,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:08:49,827 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:08:49,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:08:49,832 INFO L85 PathProgramCache]: Analyzing trace with hash -585081934, now seen corresponding path program 1 times [2024-11-08 17:08:49,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:08:49,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506521192] [2024-11-08 17:08:49,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:08:49,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:08:49,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:50,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:08:50,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:08:50,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506521192] [2024-11-08 17:08:50,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506521192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:08:50,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:08:50,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:08:50,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847312294] [2024-11-08 17:08:50,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:08:50,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:08:50,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:08:50,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:08:50,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:08:50,125 INFO L87 Difference]: Start difference. First operand 1615 states and 2561 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 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) [2024-11-08 17:08:50,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:08:50,645 INFO L93 Difference]: Finished difference Result 2371 states and 3779 transitions. [2024-11-08 17:08:50,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 17:08:50,646 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 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 77 [2024-11-08 17:08:50,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:08:50,656 INFO L225 Difference]: With dead ends: 2371 [2024-11-08 17:08:50,656 INFO L226 Difference]: Without dead ends: 2317 [2024-11-08 17:08:50,657 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-11-08 17:08:50,658 INFO L432 NwaCegarLoop]: 1578 mSDtfsCounter, 11503 mSDsluCounter, 3556 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11503 SdHoareTripleChecker+Valid, 5134 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:08:50,659 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11503 Valid, 5134 Invalid, 310 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:08:50,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2317 states. [2024-11-08 17:08:50,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2317 to 1667. [2024-11-08 17:08:50,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1667 states, 1665 states have (on average 1.5885885885885886) internal successors, (2645), 1666 states have internal predecessors, (2645), 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) [2024-11-08 17:08:50,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1667 states to 1667 states and 2645 transitions. [2024-11-08 17:08:50,708 INFO L78 Accepts]: Start accepts. Automaton has 1667 states and 2645 transitions. Word has length 77 [2024-11-08 17:08:50,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:08:50,708 INFO L471 AbstractCegarLoop]: Abstraction has 1667 states and 2645 transitions. [2024-11-08 17:08:50,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 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) [2024-11-08 17:08:50,709 INFO L276 IsEmpty]: Start isEmpty. Operand 1667 states and 2645 transitions. [2024-11-08 17:08:50,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-08 17:08:50,711 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:08:50,711 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:08:50,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:08:50,712 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:08:50,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:08:50,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1038714270, now seen corresponding path program 1 times [2024-11-08 17:08:50,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:08:50,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529836585] [2024-11-08 17:08:50,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:08:50,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:08:50,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:50,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:08:50,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:08:50,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529836585] [2024-11-08 17:08:50,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529836585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:08:50,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:08:50,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:08:50,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908660405] [2024-11-08 17:08:50,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:08:50,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:08:50,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:08:50,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:08:50,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:08:50,852 INFO L87 Difference]: Start difference. First operand 1667 states and 2645 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:08:50,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:08:50,893 INFO L93 Difference]: Finished difference Result 1868 states and 2968 transitions. [2024-11-08 17:08:50,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:08:50,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-08 17:08:50,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:08:50,904 INFO L225 Difference]: With dead ends: 1868 [2024-11-08 17:08:50,904 INFO L226 Difference]: Without dead ends: 1762 [2024-11-08 17:08:50,906 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 [2024-11-08 17:08:50,907 INFO L432 NwaCegarLoop]: 1580 mSDtfsCounter, 1498 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 1662 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:08:50,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 1662 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:08:50,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1762 states. [2024-11-08 17:08:50,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1762 to 1760. [2024-11-08 17:08:50,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1760 states, 1758 states have (on average 1.5887372013651877) internal successors, (2793), 1759 states have internal predecessors, (2793), 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) [2024-11-08 17:08:50,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1760 states to 1760 states and 2793 transitions. [2024-11-08 17:08:50,956 INFO L78 Accepts]: Start accepts. Automaton has 1760 states and 2793 transitions. Word has length 79 [2024-11-08 17:08:50,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:08:50,957 INFO L471 AbstractCegarLoop]: Abstraction has 1760 states and 2793 transitions. [2024-11-08 17:08:50,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:08:50,957 INFO L276 IsEmpty]: Start isEmpty. Operand 1760 states and 2793 transitions. [2024-11-08 17:08:50,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-08 17:08:50,959 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:08:50,960 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:08:50,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 17:08:50,960 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:08:50,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:08:50,961 INFO L85 PathProgramCache]: Analyzing trace with hash -972220758, now seen corresponding path program 1 times [2024-11-08 17:08:50,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:08:50,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824073170] [2024-11-08 17:08:50,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:08:50,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:08:51,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:51,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:08:51,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:08:51,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824073170] [2024-11-08 17:08:51,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824073170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:08:51,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:08:51,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:08:51,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329120004] [2024-11-08 17:08:51,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:08:51,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:08:51,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:08:51,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:08:51,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:08:51,522 INFO L87 Difference]: Start difference. First operand 1760 states and 2793 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:08:51,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:08:51,935 INFO L93 Difference]: Finished difference Result 1961 states and 3113 transitions. [2024-11-08 17:08:51,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:08:51,936 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-08 17:08:51,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:08:51,943 INFO L225 Difference]: With dead ends: 1961 [2024-11-08 17:08:51,943 INFO L226 Difference]: Without dead ends: 1762 [2024-11-08 17:08:51,944 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-11-08 17:08:51,946 INFO L432 NwaCegarLoop]: 1573 mSDtfsCounter, 10553 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10553 SdHoareTripleChecker+Valid, 2077 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:08:51,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10553 Valid, 2077 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:08:51,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1762 states. [2024-11-08 17:08:51,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1762 to 1760. [2024-11-08 17:08:51,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1760 states, 1758 states have (on average 1.587599544937429) internal successors, (2791), 1759 states have internal predecessors, (2791), 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) [2024-11-08 17:08:51,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1760 states to 1760 states and 2791 transitions. [2024-11-08 17:08:51,991 INFO L78 Accepts]: Start accepts. Automaton has 1760 states and 2791 transitions. Word has length 79 [2024-11-08 17:08:51,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:08:51,992 INFO L471 AbstractCegarLoop]: Abstraction has 1760 states and 2791 transitions. [2024-11-08 17:08:51,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:08:51,993 INFO L276 IsEmpty]: Start isEmpty. Operand 1760 states and 2791 transitions. [2024-11-08 17:08:51,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-08 17:08:51,994 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:08:51,994 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:08:51,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 17:08:51,995 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:08:51,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:08:51,995 INFO L85 PathProgramCache]: Analyzing trace with hash -488795339, now seen corresponding path program 1 times [2024-11-08 17:08:51,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:08:51,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129966960] [2024-11-08 17:08:51,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:08:51,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:08:52,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:52,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:08:52,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:08:52,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129966960] [2024-11-08 17:08:52,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129966960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:08:52,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:08:52,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 17:08:52,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038308702] [2024-11-08 17:08:52,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:08:52,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 17:08:52,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:08:52,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 17:08:52,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:08:52,293 INFO L87 Difference]: Start difference. First operand 1760 states and 2791 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 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) [2024-11-08 17:08:52,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:08:52,364 INFO L93 Difference]: Finished difference Result 1768 states and 2800 transitions. [2024-11-08 17:08:52,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 17:08:52,365 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 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 80 [2024-11-08 17:08:52,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:08:52,372 INFO L225 Difference]: With dead ends: 1768 [2024-11-08 17:08:52,373 INFO L226 Difference]: Without dead ends: 1766 [2024-11-08 17:08:52,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:08:52,374 INFO L432 NwaCegarLoop]: 1576 mSDtfsCounter, 0 mSDsluCounter, 9443 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11019 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:08:52,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11019 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:08:52,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2024-11-08 17:08:52,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 1766. [2024-11-08 17:08:52,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1766 states, 1764 states have (on average 1.5850340136054422) internal successors, (2796), 1765 states have internal predecessors, (2796), 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) [2024-11-08 17:08:52,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1766 states to 1766 states and 2796 transitions. [2024-11-08 17:08:52,416 INFO L78 Accepts]: Start accepts. Automaton has 1766 states and 2796 transitions. Word has length 80 [2024-11-08 17:08:52,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:08:52,416 INFO L471 AbstractCegarLoop]: Abstraction has 1766 states and 2796 transitions. [2024-11-08 17:08:52,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 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) [2024-11-08 17:08:52,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1766 states and 2796 transitions. [2024-11-08 17:08:52,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 17:08:52,418 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:08:52,418 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:08:52,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 17:08:52,418 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:08:52,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:08:52,419 INFO L85 PathProgramCache]: Analyzing trace with hash 295676394, now seen corresponding path program 1 times [2024-11-08 17:08:52,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:08:52,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224471917] [2024-11-08 17:08:52,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:08:52,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:08:52,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:52,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:08:52,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:08:52,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224471917] [2024-11-08 17:08:52,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224471917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:08:52,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:08:52,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:08:52,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321209172] [2024-11-08 17:08:52,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:08:52,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:08:52,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:08:52,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:08:52,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:08:52,500 INFO L87 Difference]: Start difference. First operand 1766 states and 2796 transitions. Second operand has 3 states, 3 states have (on average 27.0) 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) [2024-11-08 17:08:52,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:08:52,537 INFO L93 Difference]: Finished difference Result 1984 states and 3137 transitions. [2024-11-08 17:08:52,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:08:52,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) 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 [2024-11-08 17:08:52,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:08:52,545 INFO L225 Difference]: With dead ends: 1984 [2024-11-08 17:08:52,545 INFO L226 Difference]: Without dead ends: 1872 [2024-11-08 17:08:52,546 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 [2024-11-08 17:08:52,547 INFO L432 NwaCegarLoop]: 1654 mSDtfsCounter, 1516 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1742 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:08:52,547 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1742 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:08:52,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states. [2024-11-08 17:08:52,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 1870. [2024-11-08 17:08:52,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1870 states, 1868 states have (on average 1.5829764453961457) internal successors, (2957), 1869 states have internal predecessors, (2957), 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) [2024-11-08 17:08:52,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1870 states to 1870 states and 2957 transitions. [2024-11-08 17:08:52,590 INFO L78 Accepts]: Start accepts. Automaton has 1870 states and 2957 transitions. Word has length 81 [2024-11-08 17:08:52,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:08:52,591 INFO L471 AbstractCegarLoop]: Abstraction has 1870 states and 2957 transitions. [2024-11-08 17:08:52,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) 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) [2024-11-08 17:08:52,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1870 states and 2957 transitions. [2024-11-08 17:08:52,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 17:08:52,592 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:08:52,592 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:08:52,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 17:08:52,592 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:08:52,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:08:52,593 INFO L85 PathProgramCache]: Analyzing trace with hash -2057221398, now seen corresponding path program 1 times [2024-11-08 17:08:52,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:08:52,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34314927] [2024-11-08 17:08:52,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:08:52,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:08:52,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:52,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:08:52,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:08:52,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34314927] [2024-11-08 17:08:52,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34314927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:08:52,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:08:52,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:08:52,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913431443] [2024-11-08 17:08:52,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:08:52,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:08:52,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:08:52,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:08:52,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:08:52,658 INFO L87 Difference]: Start difference. First operand 1870 states and 2957 transitions. Second operand has 3 states, 3 states have (on average 27.0) 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) [2024-11-08 17:08:52,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:08:52,691 INFO L93 Difference]: Finished difference Result 2460 states and 3877 transitions. [2024-11-08 17:08:52,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:08:52,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) 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 [2024-11-08 17:08:52,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:08:52,700 INFO L225 Difference]: With dead ends: 2460 [2024-11-08 17:08:52,700 INFO L226 Difference]: Without dead ends: 2153 [2024-11-08 17:08:52,702 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 [2024-11-08 17:08:52,703 INFO L432 NwaCegarLoop]: 1656 mSDtfsCounter, 1514 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1748 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:08:52,703 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1748 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:08:52,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2153 states. [2024-11-08 17:08:52,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2153 to 2151. [2024-11-08 17:08:52,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2151 states, 2149 states have (on average 1.577012563983248) internal successors, (3389), 2150 states have internal predecessors, (3389), 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) [2024-11-08 17:08:52,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2151 states to 2151 states and 3389 transitions. [2024-11-08 17:08:52,750 INFO L78 Accepts]: Start accepts. Automaton has 2151 states and 3389 transitions. Word has length 81 [2024-11-08 17:08:52,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:08:52,751 INFO L471 AbstractCegarLoop]: Abstraction has 2151 states and 3389 transitions. [2024-11-08 17:08:52,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) 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) [2024-11-08 17:08:52,751 INFO L276 IsEmpty]: Start isEmpty. Operand 2151 states and 3389 transitions. [2024-11-08 17:08:52,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 17:08:52,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:08:52,752 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:08:52,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 17:08:52,753 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:08:52,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:08:52,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1894306838, now seen corresponding path program 1 times [2024-11-08 17:08:52,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:08:52,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822098489] [2024-11-08 17:08:52,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:08:52,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:08:52,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:52,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:08:52,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:08:52,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822098489] [2024-11-08 17:08:52,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822098489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:08:52,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:08:52,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:08:52,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721333855] [2024-11-08 17:08:52,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:08:52,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:08:52,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:08:52,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:08:52,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:08:52,883 INFO L87 Difference]: Start difference. First operand 2151 states and 3389 transitions. Second operand has 3 states, 3 states have (on average 27.0) 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) [2024-11-08 17:08:52,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:08:52,930 INFO L93 Difference]: Finished difference Result 3279 states and 5131 transitions. [2024-11-08 17:08:52,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:08:52,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) 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 [2024-11-08 17:08:52,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:08:52,940 INFO L225 Difference]: With dead ends: 3279 [2024-11-08 17:08:52,941 INFO L226 Difference]: Without dead ends: 2691 [2024-11-08 17:08:52,943 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 [2024-11-08 17:08:52,946 INFO L432 NwaCegarLoop]: 1654 mSDtfsCounter, 1512 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 1750 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:08:52,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 1750 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:08:52,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2691 states. [2024-11-08 17:08:52,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2691 to 2689. [2024-11-08 17:08:52,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2689 states, 2687 states have (on average 1.5649423148492743) internal successors, (4205), 2688 states have internal predecessors, (4205), 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) [2024-11-08 17:08:53,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2689 states to 2689 states and 4205 transitions. [2024-11-08 17:08:53,008 INFO L78 Accepts]: Start accepts. Automaton has 2689 states and 4205 transitions. Word has length 81 [2024-11-08 17:08:53,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:08:53,008 INFO L471 AbstractCegarLoop]: Abstraction has 2689 states and 4205 transitions. [2024-11-08 17:08:53,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) 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) [2024-11-08 17:08:53,008 INFO L276 IsEmpty]: Start isEmpty. Operand 2689 states and 4205 transitions. [2024-11-08 17:08:53,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 17:08:53,009 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:08:53,009 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:08:53,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 17:08:53,010 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:08:53,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:08:53,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1630450454, now seen corresponding path program 1 times [2024-11-08 17:08:53,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:08:53,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734373955] [2024-11-08 17:08:53,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:08:53,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:08:53,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:53,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:08:53,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:08:53,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734373955] [2024-11-08 17:08:53,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734373955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:08:53,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:08:53,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:08:53,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842997329] [2024-11-08 17:08:53,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:08:53,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:08:53,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:08:53,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:08:53,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:08:53,081 INFO L87 Difference]: Start difference. First operand 2689 states and 4205 transitions. Second operand has 3 states, 3 states have (on average 27.0) 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) [2024-11-08 17:08:53,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:08:53,138 INFO L93 Difference]: Finished difference Result 4845 states and 7495 transitions. [2024-11-08 17:08:53,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:08:53,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) 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 [2024-11-08 17:08:53,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:08:53,151 INFO L225 Difference]: With dead ends: 4845 [2024-11-08 17:08:53,151 INFO L226 Difference]: Without dead ends: 3719 [2024-11-08 17:08:53,155 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 [2024-11-08 17:08:53,155 INFO L432 NwaCegarLoop]: 1652 mSDtfsCounter, 1510 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 1752 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:08:53,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 1752 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:08:53,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3719 states. [2024-11-08 17:08:53,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3719 to 3717. [2024-11-08 17:08:53,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3717 states, 3715 states have (on average 1.5453566621803498) internal successors, (5741), 3716 states have internal predecessors, (5741), 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) [2024-11-08 17:08:53,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3717 states to 3717 states and 5741 transitions. [2024-11-08 17:08:53,252 INFO L78 Accepts]: Start accepts. Automaton has 3717 states and 5741 transitions. Word has length 81 [2024-11-08 17:08:53,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:08:53,252 INFO L471 AbstractCegarLoop]: Abstraction has 3717 states and 5741 transitions. [2024-11-08 17:08:53,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) 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) [2024-11-08 17:08:53,253 INFO L276 IsEmpty]: Start isEmpty. Operand 3717 states and 5741 transitions. [2024-11-08 17:08:53,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 17:08:53,254 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:08:53,254 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:08:53,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 17:08:53,254 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:08:53,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:08:53,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1687310058, now seen corresponding path program 1 times [2024-11-08 17:08:53,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:08:53,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598260460] [2024-11-08 17:08:53,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:08:53,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:08:53,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:53,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:08:53,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:08:53,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598260460] [2024-11-08 17:08:53,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598260460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:08:53,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:08:53,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:08:53,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906797903] [2024-11-08 17:08:53,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:08:53,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:08:53,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:08:53,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:08:53,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:08:53,317 INFO L87 Difference]: Start difference. First operand 3717 states and 5741 transitions. Second operand has 3 states, 3 states have (on average 27.0) 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) [2024-11-08 17:08:53,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:08:53,400 INFO L93 Difference]: Finished difference Result 7833 states and 11935 transitions. [2024-11-08 17:08:53,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:08:53,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) 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 [2024-11-08 17:08:53,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:08:53,420 INFO L225 Difference]: With dead ends: 7833 [2024-11-08 17:08:53,420 INFO L226 Difference]: Without dead ends: 5679 [2024-11-08 17:08:53,425 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 [2024-11-08 17:08:53,426 INFO L432 NwaCegarLoop]: 1640 mSDtfsCounter, 1506 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1748 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:08:53,426 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1748 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:08:53,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5679 states. [2024-11-08 17:08:53,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5679 to 5677. [2024-11-08 17:08:53,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5677 states, 5675 states have (on average 1.5191189427312775) internal successors, (8621), 5676 states have internal predecessors, (8621), 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) [2024-11-08 17:08:53,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5677 states to 5677 states and 8621 transitions. [2024-11-08 17:08:53,579 INFO L78 Accepts]: Start accepts. Automaton has 5677 states and 8621 transitions. Word has length 81 [2024-11-08 17:08:53,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:08:53,579 INFO L471 AbstractCegarLoop]: Abstraction has 5677 states and 8621 transitions. [2024-11-08 17:08:53,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) 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) [2024-11-08 17:08:53,580 INFO L276 IsEmpty]: Start isEmpty. Operand 5677 states and 8621 transitions. [2024-11-08 17:08:53,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 17:08:53,580 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:08:53,581 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:08:53,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 17:08:53,581 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:08:53,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:08:53,582 INFO L85 PathProgramCache]: Analyzing trace with hash -826724374, now seen corresponding path program 1 times [2024-11-08 17:08:53,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:08:53,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760691817] [2024-11-08 17:08:53,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:08:53,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:08:53,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:53,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:08:53,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:08:53,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760691817] [2024-11-08 17:08:53,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760691817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:08:53,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:08:53,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:08:53,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926453378] [2024-11-08 17:08:53,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:08:53,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:08:53,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:08:53,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:08:53,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:08:53,652 INFO L87 Difference]: Start difference. First operand 5677 states and 8621 transitions. Second operand has 3 states, 3 states have (on average 27.0) 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) [2024-11-08 17:08:53,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:08:53,792 INFO L93 Difference]: Finished difference Result 13521 states and 20239 transitions. [2024-11-08 17:08:53,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:08:53,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) 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 [2024-11-08 17:08:53,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:08:53,813 INFO L225 Difference]: With dead ends: 13521 [2024-11-08 17:08:53,814 INFO L226 Difference]: Without dead ends: 9407 [2024-11-08 17:08:53,822 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 [2024-11-08 17:08:53,823 INFO L432 NwaCegarLoop]: 1638 mSDtfsCounter, 1504 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1750 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:08:53,823 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1750 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:08:53,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9407 states. [2024-11-08 17:08:54,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9407 to 9405. [2024-11-08 17:08:54,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9405 states, 9403 states have (on average 1.48856747846432) internal successors, (13997), 9404 states have internal predecessors, (13997), 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) [2024-11-08 17:08:54,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9405 states to 9405 states and 13997 transitions. [2024-11-08 17:08:54,064 INFO L78 Accepts]: Start accepts. Automaton has 9405 states and 13997 transitions. Word has length 81 [2024-11-08 17:08:54,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:08:54,064 INFO L471 AbstractCegarLoop]: Abstraction has 9405 states and 13997 transitions. [2024-11-08 17:08:54,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) 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) [2024-11-08 17:08:54,065 INFO L276 IsEmpty]: Start isEmpty. Operand 9405 states and 13997 transitions. [2024-11-08 17:08:54,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 17:08:54,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:08:54,065 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:08:54,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 17:08:54,066 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:08:54,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:08:54,066 INFO L85 PathProgramCache]: Analyzing trace with hash -392188438, now seen corresponding path program 1 times [2024-11-08 17:08:54,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:08:54,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874167807] [2024-11-08 17:08:54,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:08:54,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:08:54,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:54,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:08:54,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:08:54,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874167807] [2024-11-08 17:08:54,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874167807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:08:54,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:08:54,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:08:54,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127716898] [2024-11-08 17:08:54,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:08:54,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:08:54,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:08:54,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:08:54,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:08:54,185 INFO L87 Difference]: Start difference. First operand 9405 states and 13997 transitions. Second operand has 3 states, 3 states have (on average 27.0) 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) [2024-11-08 17:08:54,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:08:54,420 INFO L93 Difference]: Finished difference Result 24321 states and 35695 transitions. [2024-11-08 17:08:54,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:08:54,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) 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 [2024-11-08 17:08:54,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:08:54,453 INFO L225 Difference]: With dead ends: 24321 [2024-11-08 17:08:54,454 INFO L226 Difference]: Without dead ends: 16479 [2024-11-08 17:08:54,469 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 [2024-11-08 17:08:54,469 INFO L432 NwaCegarLoop]: 1650 mSDtfsCounter, 1508 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 1754 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:08:54,470 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 1754 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:08:54,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16479 states. [2024-11-08 17:08:54,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16479 to 16477. [2024-11-08 17:08:54,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16477 states, 16475 states have (on average 1.4555993930197269) internal successors, (23981), 16476 states have internal predecessors, (23981), 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) [2024-11-08 17:08:54,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16477 states to 16477 states and 23981 transitions. [2024-11-08 17:08:54,924 INFO L78 Accepts]: Start accepts. Automaton has 16477 states and 23981 transitions. Word has length 81 [2024-11-08 17:08:54,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:08:54,924 INFO L471 AbstractCegarLoop]: Abstraction has 16477 states and 23981 transitions. [2024-11-08 17:08:54,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) 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) [2024-11-08 17:08:54,924 INFO L276 IsEmpty]: Start isEmpty. Operand 16477 states and 23981 transitions. [2024-11-08 17:08:54,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-08 17:08:54,926 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:08:54,926 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:08:54,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 17:08:54,926 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:08:54,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:08:54,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1202883491, now seen corresponding path program 1 times [2024-11-08 17:08:54,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:08:54,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052383139] [2024-11-08 17:08:54,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:08:54,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:08:54,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:55,123 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:08:55,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:08:55,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052383139] [2024-11-08 17:08:55,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052383139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:08:55,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:08:55,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:08:55,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618480941] [2024-11-08 17:08:55,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:08:55,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:08:55,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:08:55,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:08:55,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:08:55,125 INFO L87 Difference]: Start difference. First operand 16477 states and 23981 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:08:58,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:08:58,241 INFO L93 Difference]: Finished difference Result 18732 states and 27376 transitions. [2024-11-08 17:08:58,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:08:58,241 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-08 17:08:58,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:08:58,278 INFO L225 Difference]: With dead ends: 18732 [2024-11-08 17:08:58,278 INFO L226 Difference]: Without dead ends: 17228 [2024-11-08 17:08:58,289 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:08:58,290 INFO L432 NwaCegarLoop]: 834 mSDtfsCounter, 1033 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 3152 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1033 SdHoareTripleChecker+Valid, 1455 SdHoareTripleChecker+Invalid, 3373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 3152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-08 17:08:58,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1033 Valid, 1455 Invalid, 3373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 3152 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-08 17:08:58,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17228 states. [2024-11-08 17:08:58,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17228 to 17228. [2024-11-08 17:08:58,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17228 states, 17226 states have (on average 1.4360849878091257) internal successors, (24738), 17227 states have internal predecessors, (24738), 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) [2024-11-08 17:08:58,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17228 states to 17228 states and 24738 transitions. [2024-11-08 17:08:58,952 INFO L78 Accepts]: Start accepts. Automaton has 17228 states and 24738 transitions. Word has length 95 [2024-11-08 17:08:58,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:08:58,952 INFO L471 AbstractCegarLoop]: Abstraction has 17228 states and 24738 transitions. [2024-11-08 17:08:58,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:08:58,953 INFO L276 IsEmpty]: Start isEmpty. Operand 17228 states and 24738 transitions. [2024-11-08 17:08:58,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 17:08:58,958 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:08:58,959 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:08:58,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 17:08:58,959 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:08:58,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:08:58,960 INFO L85 PathProgramCache]: Analyzing trace with hash -730351122, now seen corresponding path program 1 times [2024-11-08 17:08:58,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:08:58,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907724954] [2024-11-08 17:08:58,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:08:58,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:08:58,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:59,326 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 17:08:59,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:08:59,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907724954] [2024-11-08 17:08:59,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907724954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:08:59,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:08:59,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:08:59,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106504011] [2024-11-08 17:08:59,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:08:59,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:08:59,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:08:59,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:08:59,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:08:59,329 INFO L87 Difference]: Start difference. First operand 17228 states and 24738 transitions. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 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) [2024-11-08 17:09:00,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:09:00,987 INFO L93 Difference]: Finished difference Result 120284 states and 173226 transitions. [2024-11-08 17:09:00,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:09:00,987 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-08 17:09:00,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:09:01,256 INFO L225 Difference]: With dead ends: 120284 [2024-11-08 17:09:01,257 INFO L226 Difference]: Without dead ends: 109786 [2024-11-08 17:09:01,295 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-08 17:09:01,296 INFO L432 NwaCegarLoop]: 1668 mSDtfsCounter, 9866 mSDsluCounter, 3018 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9866 SdHoareTripleChecker+Valid, 4686 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:09:01,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9866 Valid, 4686 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:09:01,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109786 states. [2024-11-08 17:09:02,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109786 to 29964. [2024-11-08 17:09:02,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29964 states, 29962 states have (on average 1.4322808891262266) internal successors, (42914), 29963 states have internal predecessors, (42914), 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) [2024-11-08 17:09:02,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29964 states to 29964 states and 42914 transitions. [2024-11-08 17:09:02,889 INFO L78 Accepts]: Start accepts. Automaton has 29964 states and 42914 transitions. Word has length 104 [2024-11-08 17:09:02,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:09:02,890 INFO L471 AbstractCegarLoop]: Abstraction has 29964 states and 42914 transitions. [2024-11-08 17:09:02,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 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) [2024-11-08 17:09:02,890 INFO L276 IsEmpty]: Start isEmpty. Operand 29964 states and 42914 transitions. [2024-11-08 17:09:02,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 17:09:02,903 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:09:02,903 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:09:02,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 17:09:02,903 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:09:02,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:09:02,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1211718382, now seen corresponding path program 1 times [2024-11-08 17:09:02,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:09:02,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527559333] [2024-11-08 17:09:02,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:09:02,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:09:02,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:09:03,225 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 17:09:03,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:09:03,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527559333] [2024-11-08 17:09:03,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527559333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:09:03,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:09:03,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:09:03,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095921775] [2024-11-08 17:09:03,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:09:03,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:09:03,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:09:03,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:09:03,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:09:03,234 INFO L87 Difference]: Start difference. First operand 29964 states and 42914 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:09:05,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:09:05,558 INFO L93 Difference]: Finished difference Result 135196 states and 194602 transitions. [2024-11-08 17:09:05,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:09:05,558 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-08 17:09:05,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:09:05,721 INFO L225 Difference]: With dead ends: 135196 [2024-11-08 17:09:05,721 INFO L226 Difference]: Without dead ends: 120282 [2024-11-08 17:09:05,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-08 17:09:05,762 INFO L432 NwaCegarLoop]: 1667 mSDtfsCounter, 9870 mSDsluCounter, 2944 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9870 SdHoareTripleChecker+Valid, 4611 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:09:05,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9870 Valid, 4611 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:09:05,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120282 states. [2024-11-08 17:09:07,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120282 to 50124. [2024-11-08 17:09:07,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50124 states, 50122 states have (on average 1.4295119907425882) internal successors, (71650), 50123 states have internal predecessors, (71650), 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) [2024-11-08 17:09:07,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50124 states to 50124 states and 71650 transitions. [2024-11-08 17:09:08,003 INFO L78 Accepts]: Start accepts. Automaton has 50124 states and 71650 transitions. Word has length 104 [2024-11-08 17:09:08,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:09:08,004 INFO L471 AbstractCegarLoop]: Abstraction has 50124 states and 71650 transitions. [2024-11-08 17:09:08,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:09:08,004 INFO L276 IsEmpty]: Start isEmpty. Operand 50124 states and 71650 transitions. [2024-11-08 17:09:08,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 17:09:08,012 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:09:08,012 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:09:08,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 17:09:08,013 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:09:08,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:09:08,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1374632942, now seen corresponding path program 1 times [2024-11-08 17:09:08,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:09:08,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486747455] [2024-11-08 17:09:08,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:09:08,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:09:08,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:09:08,256 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-08 17:09:08,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:09:08,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486747455] [2024-11-08 17:09:08,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486747455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:09:08,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:09:08,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:09:08,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705342142] [2024-11-08 17:09:08,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:09:08,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:09:08,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:09:08,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:09:08,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:09:08,258 INFO L87 Difference]: Start difference. First operand 50124 states and 71650 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:09:11,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:09:11,560 INFO L93 Difference]: Finished difference Result 150108 states and 215914 transitions. [2024-11-08 17:09:11,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:09:11,561 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-08 17:09:11,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:09:11,765 INFO L225 Difference]: With dead ends: 150108 [2024-11-08 17:09:11,765 INFO L226 Difference]: Without dead ends: 135194 [2024-11-08 17:09:11,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-08 17:09:11,798 INFO L432 NwaCegarLoop]: 1665 mSDtfsCounter, 9890 mSDsluCounter, 2906 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9890 SdHoareTripleChecker+Valid, 4571 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:09:11,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9890 Valid, 4571 Invalid, 230 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:09:11,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135194 states. [2024-11-08 17:09:14,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135194 to 65036. [2024-11-08 17:09:14,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65036 states, 65034 states have (on average 1.4294369099240398) internal successors, (92962), 65035 states have internal predecessors, (92962), 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) [2024-11-08 17:09:14,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65036 states to 65036 states and 92962 transitions. [2024-11-08 17:09:14,224 INFO L78 Accepts]: Start accepts. Automaton has 65036 states and 92962 transitions. Word has length 104 [2024-11-08 17:09:14,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:09:14,225 INFO L471 AbstractCegarLoop]: Abstraction has 65036 states and 92962 transitions. [2024-11-08 17:09:14,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:09:14,225 INFO L276 IsEmpty]: Start isEmpty. Operand 65036 states and 92962 transitions. [2024-11-08 17:09:14,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 17:09:14,234 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:09:14,234 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:09:14,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 17:09:14,235 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:09:14,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:09:14,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1638489326, now seen corresponding path program 1 times [2024-11-08 17:09:14,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:09:14,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376322852] [2024-11-08 17:09:14,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:09:14,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:09:14,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:09:14,676 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-08 17:09:14,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:09:14,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376322852] [2024-11-08 17:09:14,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376322852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:09:14,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:09:14,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:09:14,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414402923] [2024-11-08 17:09:14,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:09:14,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:09:14,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:09:14,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:09:14,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:09:14,679 INFO L87 Difference]: Start difference. First operand 65036 states and 92962 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:09:18,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:09:18,021 INFO L93 Difference]: Finished difference Result 165020 states and 237226 transitions. [2024-11-08 17:09:18,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:09:18,022 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-08 17:09:18,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:09:18,233 INFO L225 Difference]: With dead ends: 165020 [2024-11-08 17:09:18,233 INFO L226 Difference]: Without dead ends: 150106 [2024-11-08 17:09:18,277 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-08 17:09:18,278 INFO L432 NwaCegarLoop]: 1663 mSDtfsCounter, 9982 mSDsluCounter, 2823 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9982 SdHoareTripleChecker+Valid, 4486 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:09:18,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9982 Valid, 4486 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:09:18,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150106 states. [2024-11-08 17:09:21,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150106 to 79948. [2024-11-08 17:09:21,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79948 states, 79946 states have (on average 1.429389838140745) internal successors, (114274), 79947 states have internal predecessors, (114274), 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) [2024-11-08 17:09:21,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79948 states to 79948 states and 114274 transitions. [2024-11-08 17:09:21,421 INFO L78 Accepts]: Start accepts. Automaton has 79948 states and 114274 transitions. Word has length 104 [2024-11-08 17:09:21,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:09:21,421 INFO L471 AbstractCegarLoop]: Abstraction has 79948 states and 114274 transitions. [2024-11-08 17:09:21,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:09:21,421 INFO L276 IsEmpty]: Start isEmpty. Operand 79948 states and 114274 transitions. [2024-11-08 17:09:21,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 17:09:21,431 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:09:21,431 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:09:21,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 17:09:21,431 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:09:21,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:09:21,432 INFO L85 PathProgramCache]: Analyzing trace with hash 661282542, now seen corresponding path program 1 times [2024-11-08 17:09:21,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:09:21,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681147882] [2024-11-08 17:09:21,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:09:21,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:09:21,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:09:21,893 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 17:09:21,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:09:21,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681147882] [2024-11-08 17:09:21,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681147882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:09:21,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:09:21,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:09:21,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307314655] [2024-11-08 17:09:21,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:09:21,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:09:21,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:09:21,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:09:21,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:09:21,897 INFO L87 Difference]: Start difference. First operand 79948 states and 114274 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:09:25,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:09:25,806 INFO L93 Difference]: Finished difference Result 179932 states and 258538 transitions. [2024-11-08 17:09:25,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:09:25,807 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-08 17:09:25,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:09:26,122 INFO L225 Difference]: With dead ends: 179932 [2024-11-08 17:09:26,122 INFO L226 Difference]: Without dead ends: 165018 [2024-11-08 17:09:26,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-08 17:09:26,145 INFO L432 NwaCegarLoop]: 1661 mSDtfsCounter, 10065 mSDsluCounter, 2887 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10065 SdHoareTripleChecker+Valid, 4548 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:09:26,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10065 Valid, 4548 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:09:26,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165018 states. [2024-11-08 17:09:29,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165018 to 94860. [2024-11-08 17:09:29,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94860 states, 94858 states have (on average 1.42935756604609) internal successors, (135586), 94859 states have internal predecessors, (135586), 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) [2024-11-08 17:09:29,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94860 states to 94860 states and 135586 transitions. [2024-11-08 17:09:29,746 INFO L78 Accepts]: Start accepts. Automaton has 94860 states and 135586 transitions. Word has length 104 [2024-11-08 17:09:29,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:09:29,746 INFO L471 AbstractCegarLoop]: Abstraction has 94860 states and 135586 transitions. [2024-11-08 17:09:29,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:09:29,747 INFO L276 IsEmpty]: Start isEmpty. Operand 94860 states and 135586 transitions. [2024-11-08 17:09:29,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 17:09:29,755 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:09:29,756 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:09:29,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 17:09:29,756 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:09:29,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:09:29,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1852751890, now seen corresponding path program 1 times [2024-11-08 17:09:29,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:09:29,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694952062] [2024-11-08 17:09:29,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:09:29,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:09:29,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:09:29,956 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-08 17:09:29,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:09:29,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694952062] [2024-11-08 17:09:29,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694952062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:09:29,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:09:29,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:09:29,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637399452] [2024-11-08 17:09:29,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:09:29,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:09:29,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:09:29,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:09:29,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:09:29,958 INFO L87 Difference]: Start difference. First operand 94860 states and 135586 transitions. Second operand has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)