./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.8_overflow.ufo.UNBOUNDED.pals+Problem12_label09.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.8_overflow.ufo.UNBOUNDED.pals+Problem12_label09.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 333f7d871a28287888fc627bc2286b138e3dc4b4ae11f3e9e7973c97016726e5 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 17:12:53,800 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:12:53,868 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 17:12:53,874 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:12:53,875 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:12:53,903 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:12:53,903 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:12:53,904 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:12:53,904 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:12:53,904 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:12:53,904 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:12:53,905 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:12:53,906 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:12:53,906 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:12:53,907 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:12:53,907 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:12:53,907 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:12:53,907 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:12:53,907 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:12:53,908 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:12:53,908 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:12:53,908 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:12:53,909 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:12:53,909 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:12:53,909 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:12:53,909 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:12:53,909 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:12:53,909 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:12:53,910 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:12:53,910 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:12:53,910 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:12:53,910 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:12:53,910 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:12:53,911 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:12:53,911 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:12:53,911 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:12:53,911 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:12:53,911 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:12:53,912 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:12:53,912 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:12:53,912 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:12:53,916 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:12:53,916 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 333f7d871a28287888fc627bc2286b138e3dc4b4ae11f3e9e7973c97016726e5 [2024-11-08 17:12:54,091 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:12:54,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:12:54,115 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:12:54,116 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:12:54,116 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:12:54,117 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.8_overflow.ufo.UNBOUNDED.pals+Problem12_label09.c [2024-11-08 17:12:55,311 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:12:55,622 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:12:55,623 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.8_overflow.ufo.UNBOUNDED.pals+Problem12_label09.c [2024-11-08 17:12:55,659 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fc175faa/3fe7157194b24a4bb7eb39f3fe57ec72/FLAGb45faf5dc [2024-11-08 17:12:55,675 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fc175faa/3fe7157194b24a4bb7eb39f3fe57ec72 [2024-11-08 17:12:55,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:12:55,679 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:12:55,680 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:12:55,680 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:12:55,684 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:12:55,684 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:12:55" (1/1) ... [2024-11-08 17:12:55,685 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f34d8ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:12:55, skipping insertion in model container [2024-11-08 17:12:55,685 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:12:55" (1/1) ... [2024-11-08 17:12:55,792 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:12:56,092 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.8_overflow.ufo.UNBOUNDED.pals+Problem12_label09.c[26962,26975] [2024-11-08 17:12:56,134 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.8_overflow.ufo.UNBOUNDED.pals+Problem12_label09.c[34710,34723] [2024-11-08 17:12:56,589 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:12:56,599 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:12:56,628 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.8_overflow.ufo.UNBOUNDED.pals+Problem12_label09.c[26962,26975] [2024-11-08 17:12:56,635 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.8_overflow.ufo.UNBOUNDED.pals+Problem12_label09.c[34710,34723] [2024-11-08 17:12:56,936 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:12:56,964 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:12:56,965 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:12:56 WrapperNode [2024-11-08 17:12:56,965 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:12:56,966 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:12:56,966 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:12:56,966 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:12:56,971 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:12:56" (1/1) ... [2024-11-08 17:12:57,008 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:12:56" (1/1) ... [2024-11-08 17:12:57,296 INFO L138 Inliner]: procedures = 40, calls = 25, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 5289 [2024-11-08 17:12:57,297 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:12:57,297 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:12:57,297 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:12:57,297 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:12:57,306 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:12:56" (1/1) ... [2024-11-08 17:12:57,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:12:56" (1/1) ... [2024-11-08 17:12:57,353 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:12:56" (1/1) ... [2024-11-08 17:12:57,494 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 17:12:57,494 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:12:56" (1/1) ... [2024-11-08 17:12:57,495 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:12:56" (1/1) ... [2024-11-08 17:12:57,602 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:12:56" (1/1) ... [2024-11-08 17:12:57,626 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:12:56" (1/1) ... [2024-11-08 17:12:57,647 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:12:56" (1/1) ... [2024-11-08 17:12:57,664 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:12:56" (1/1) ... [2024-11-08 17:12:57,725 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:12:57,726 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:12:57,726 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:12:57,726 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:12:57,727 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:12:56" (1/1) ... [2024-11-08 17:12:57,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:12:57,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 17:12:57,755 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 17:12:57,757 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 17:12:57,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:12:57,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:12:57,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:12:57,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:12:57,966 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:12:57,968 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:13:01,231 INFO L? ?]: Removed 759 outVars from TransFormulas that were not future-live. [2024-11-08 17:13:01,232 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:13:01,266 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:13:01,266 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 17:13:01,267 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:13:01 BoogieIcfgContainer [2024-11-08 17:13:01,267 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:13:01,269 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:13:01,269 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:13:01,273 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:13:01,273 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:12:55" (1/3) ... [2024-11-08 17:13:01,274 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ed1e81e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:13:01, skipping insertion in model container [2024-11-08 17:13:01,274 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:12:56" (2/3) ... [2024-11-08 17:13:01,275 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ed1e81e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:13:01, skipping insertion in model container [2024-11-08 17:13:01,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:13:01" (3/3) ... [2024-11-08 17:13:01,276 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8_overflow.ufo.UNBOUNDED.pals+Problem12_label09.c [2024-11-08 17:13:01,290 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:13:01,290 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 17:13:01,362 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:13:01,368 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;@3b5e9b19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:13:01,368 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 17:13:01,375 INFO L276 IsEmpty]: Start isEmpty. Operand has 947 states, 944 states have (on average 1.9036016949152543) internal successors, (1797), 946 states have internal predecessors, (1797), 0 states have call successors, (0), 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 17:13:01,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-08 17:13:01,382 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:13:01,383 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:13:01,383 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:13:01,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:01,387 INFO L85 PathProgramCache]: Analyzing trace with hash -60564882, now seen corresponding path program 1 times [2024-11-08 17:13:01,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:01,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3813132] [2024-11-08 17:13:01,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:01,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:01,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:01,703 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 17:13:01,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:01,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3813132] [2024-11-08 17:13:01,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3813132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:01,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:01,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:13:01,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776650847] [2024-11-08 17:13:01,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:01,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 17:13:01,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:01,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 17:13:01,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:13:01,736 INFO L87 Difference]: Start difference. First operand has 947 states, 944 states have (on average 1.9036016949152543) internal successors, (1797), 946 states have internal predecessors, (1797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:01,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:13:01,800 INFO L93 Difference]: Finished difference Result 1825 states and 3462 transitions. [2024-11-08 17:13:01,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 17:13:01,802 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2024-11-08 17:13:01,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:13:01,815 INFO L225 Difference]: With dead ends: 1825 [2024-11-08 17:13:01,815 INFO L226 Difference]: Without dead ends: 881 [2024-11-08 17:13:01,824 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:13:01,828 INFO L432 NwaCegarLoop]: 1728 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1728 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:13:01,829 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1728 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:13:01,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2024-11-08 17:13:01,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 881. [2024-11-08 17:13:01,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 881 states, 879 states have (on average 1.8930602957906713) internal successors, (1664), 880 states have internal predecessors, (1664), 0 states have call successors, (0), 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 17:13:01,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1664 transitions. [2024-11-08 17:13:01,890 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1664 transitions. Word has length 30 [2024-11-08 17:13:01,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:13:01,890 INFO L471 AbstractCegarLoop]: Abstraction has 881 states and 1664 transitions. [2024-11-08 17:13:01,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:01,891 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1664 transitions. [2024-11-08 17:13:01,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-08 17:13:01,892 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:13:01,892 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:13:01,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:13:01,893 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:13:01,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:01,893 INFO L85 PathProgramCache]: Analyzing trace with hash -194578388, now seen corresponding path program 1 times [2024-11-08 17:13:01,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:01,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462327178] [2024-11-08 17:13:01,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:01,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:01,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:02,098 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 17:13:02,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:02,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462327178] [2024-11-08 17:13:02,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462327178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:02,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:02,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:13:02,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223167580] [2024-11-08 17:13:02,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:02,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:13:02,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:02,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:13:02,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:13:02,102 INFO L87 Difference]: Start difference. First operand 881 states and 1664 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:02,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:13:02,199 INFO L93 Difference]: Finished difference Result 945 states and 1765 transitions. [2024-11-08 17:13:02,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:13:02,200 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2024-11-08 17:13:02,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:13:02,203 INFO L225 Difference]: With dead ends: 945 [2024-11-08 17:13:02,203 INFO L226 Difference]: Without dead ends: 881 [2024-11-08 17:13:02,203 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 17:13:02,204 INFO L432 NwaCegarLoop]: 1662 mSDtfsCounter, 0 mSDsluCounter, 4920 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6582 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:13:02,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6582 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:13:02,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2024-11-08 17:13:02,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 881. [2024-11-08 17:13:02,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 881 states, 879 states have (on average 1.8236632536973834) internal successors, (1603), 880 states have internal predecessors, (1603), 0 states have call successors, (0), 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 17:13:02,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1603 transitions. [2024-11-08 17:13:02,218 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1603 transitions. Word has length 30 [2024-11-08 17:13:02,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:13:02,218 INFO L471 AbstractCegarLoop]: Abstraction has 881 states and 1603 transitions. [2024-11-08 17:13:02,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:02,218 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1603 transitions. [2024-11-08 17:13:02,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-08 17:13:02,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:13:02,220 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:13:02,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:13:02,220 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:13:02,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:02,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1419712348, now seen corresponding path program 1 times [2024-11-08 17:13:02,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:02,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648991006] [2024-11-08 17:13:02,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:02,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:02,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:02,432 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 17:13:02,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:02,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648991006] [2024-11-08 17:13:02,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648991006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:02,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:02,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:13:02,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586572808] [2024-11-08 17:13:02,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:02,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:13:02,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:02,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:13:02,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:13:02,434 INFO L87 Difference]: Start difference. First operand 881 states and 1603 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:06,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:13:06,898 INFO L93 Difference]: Finished difference Result 3136 states and 5912 transitions. [2024-11-08 17:13:06,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:13:06,898 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-08 17:13:06,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:13:06,905 INFO L225 Difference]: With dead ends: 3136 [2024-11-08 17:13:06,906 INFO L226 Difference]: Without dead ends: 2383 [2024-11-08 17:13:06,908 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 17:13:06,909 INFO L432 NwaCegarLoop]: 857 mSDtfsCounter, 2513 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5154 mSolverCounterSat, 1245 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2513 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 6399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1245 IncrementalHoareTripleChecker+Valid, 5154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-08 17:13:06,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2513 Valid, 875 Invalid, 6399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1245 Valid, 5154 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-08 17:13:06,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2383 states. [2024-11-08 17:13:06,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2383 to 2383. [2024-11-08 17:13:06,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2383 states, 2381 states have (on average 1.50314993700126) internal successors, (3579), 2382 states have internal predecessors, (3579), 0 states have call successors, (0), 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 17:13:06,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2383 states to 2383 states and 3579 transitions. [2024-11-08 17:13:06,937 INFO L78 Accepts]: Start accepts. Automaton has 2383 states and 3579 transitions. Word has length 67 [2024-11-08 17:13:06,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:13:06,940 INFO L471 AbstractCegarLoop]: Abstraction has 2383 states and 3579 transitions. [2024-11-08 17:13:06,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:06,940 INFO L276 IsEmpty]: Start isEmpty. Operand 2383 states and 3579 transitions. [2024-11-08 17:13:06,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-08 17:13:06,942 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:13:06,942 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:13:06,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:13:06,942 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:13:06,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:06,943 INFO L85 PathProgramCache]: Analyzing trace with hash 255619932, now seen corresponding path program 1 times [2024-11-08 17:13:06,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:06,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418074475] [2024-11-08 17:13:06,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:06,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:06,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:07,199 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 17:13:07,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:07,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418074475] [2024-11-08 17:13:07,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418074475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:07,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:07,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 17:13:07,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315886356] [2024-11-08 17:13:07,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:07,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:13:07,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:07,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:13:07,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:13:07,203 INFO L87 Difference]: Start difference. First operand 2383 states and 3579 transitions. Second operand has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 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 17:13:07,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:13:07,610 INFO L93 Difference]: Finished difference Result 3343 states and 5131 transitions. [2024-11-08 17:13:07,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 17:13:07,610 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-11-08 17:13:07,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:13:07,619 INFO L225 Difference]: With dead ends: 3343 [2024-11-08 17:13:07,619 INFO L226 Difference]: Without dead ends: 3283 [2024-11-08 17:13:07,620 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-11-08 17:13:07,620 INFO L432 NwaCegarLoop]: 1599 mSDtfsCounter, 13373 mSDsluCounter, 4789 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13373 SdHoareTripleChecker+Valid, 6388 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:13:07,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13373 Valid, 6388 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:13:07,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3283 states. [2024-11-08 17:13:07,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3283 to 2441. [2024-11-08 17:13:07,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2441 states, 2439 states have (on average 1.5059450594505945) internal successors, (3673), 2440 states have internal predecessors, (3673), 0 states have call successors, (0), 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 17:13:07,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2441 states to 2441 states and 3673 transitions. [2024-11-08 17:13:07,653 INFO L78 Accepts]: Start accepts. Automaton has 2441 states and 3673 transitions. Word has length 90 [2024-11-08 17:13:07,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:13:07,654 INFO L471 AbstractCegarLoop]: Abstraction has 2441 states and 3673 transitions. [2024-11-08 17:13:07,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 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 17:13:07,654 INFO L276 IsEmpty]: Start isEmpty. Operand 2441 states and 3673 transitions. [2024-11-08 17:13:07,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 17:13:07,656 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:13:07,656 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:13:07,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 17:13:07,656 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:13:07,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:07,656 INFO L85 PathProgramCache]: Analyzing trace with hash -578069748, now seen corresponding path program 1 times [2024-11-08 17:13:07,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:07,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854958433] [2024-11-08 17:13:07,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:07,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:07,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:07,741 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 17:13:07,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:07,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854958433] [2024-11-08 17:13:07,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854958433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:07,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:07,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:13:07,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892664621] [2024-11-08 17:13:07,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:07,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:13:07,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:07,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:13:07,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:13:07,745 INFO L87 Difference]: Start difference. First operand 2441 states and 3673 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:07,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:13:07,775 INFO L93 Difference]: Finished difference Result 2666 states and 4036 transitions. [2024-11-08 17:13:07,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:13:07,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-08 17:13:07,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:13:07,787 INFO L225 Difference]: With dead ends: 2666 [2024-11-08 17:13:07,787 INFO L226 Difference]: Without dead ends: 2548 [2024-11-08 17:13:07,789 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 17:13:07,790 INFO L432 NwaCegarLoop]: 1601 mSDtfsCounter, 1506 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1693 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 17:13:07,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1693 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:13:07,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2548 states. [2024-11-08 17:13:07,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2548 to 2546. [2024-11-08 17:13:07,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2546 states, 2544 states have (on average 1.5098270440251573) internal successors, (3841), 2545 states have internal predecessors, (3841), 0 states have call successors, (0), 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 17:13:07,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2546 states to 2546 states and 3841 transitions. [2024-11-08 17:13:07,851 INFO L78 Accepts]: Start accepts. Automaton has 2546 states and 3841 transitions. Word has length 92 [2024-11-08 17:13:07,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:13:07,852 INFO L471 AbstractCegarLoop]: Abstraction has 2546 states and 3841 transitions. [2024-11-08 17:13:07,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:07,852 INFO L276 IsEmpty]: Start isEmpty. Operand 2546 states and 3841 transitions. [2024-11-08 17:13:07,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 17:13:07,854 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:13:07,854 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:13:07,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 17:13:07,855 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:13:07,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:07,856 INFO L85 PathProgramCache]: Analyzing trace with hash -511576236, now seen corresponding path program 1 times [2024-11-08 17:13:07,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:07,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487656499] [2024-11-08 17:13:07,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:07,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:07,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:08,262 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 17:13:08,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:08,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487656499] [2024-11-08 17:13:08,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487656499] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:08,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:08,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 17:13:08,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053169381] [2024-11-08 17:13:08,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:08,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:13:08,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:08,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:13:08,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:13:08,265 INFO L87 Difference]: Start difference. First operand 2546 states and 3841 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:08,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:13:08,612 INFO L93 Difference]: Finished difference Result 2771 states and 4201 transitions. [2024-11-08 17:13:08,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 17:13:08,612 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-08 17:13:08,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:13:08,619 INFO L225 Difference]: With dead ends: 2771 [2024-11-08 17:13:08,619 INFO L226 Difference]: Without dead ends: 2548 [2024-11-08 17:13:08,620 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-11-08 17:13:08,620 INFO L432 NwaCegarLoop]: 1593 mSDtfsCounter, 6108 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6108 SdHoareTripleChecker+Valid, 2254 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:13:08,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6108 Valid, 2254 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:13:08,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2548 states. [2024-11-08 17:13:08,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2548 to 2546. [2024-11-08 17:13:08,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2546 states, 2544 states have (on average 1.5090408805031446) internal successors, (3839), 2545 states have internal predecessors, (3839), 0 states have call successors, (0), 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 17:13:08,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2546 states to 2546 states and 3839 transitions. [2024-11-08 17:13:08,692 INFO L78 Accepts]: Start accepts. Automaton has 2546 states and 3839 transitions. Word has length 92 [2024-11-08 17:13:08,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:13:08,692 INFO L471 AbstractCegarLoop]: Abstraction has 2546 states and 3839 transitions. [2024-11-08 17:13:08,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:08,693 INFO L276 IsEmpty]: Start isEmpty. Operand 2546 states and 3839 transitions. [2024-11-08 17:13:08,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 17:13:08,693 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:13:08,694 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:13:08,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 17:13:08,694 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:13:08,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:08,695 INFO L85 PathProgramCache]: Analyzing trace with hash 906283047, now seen corresponding path program 1 times [2024-11-08 17:13:08,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:08,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260034278] [2024-11-08 17:13:08,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:08,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:08,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:08,927 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 17:13:08,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:08,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260034278] [2024-11-08 17:13:08,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260034278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:08,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:08,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:13:08,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494553819] [2024-11-08 17:13:08,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:08,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:13:08,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:08,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:13:08,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:13:08,930 INFO L87 Difference]: Start difference. First operand 2546 states and 3839 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 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 17:13:08,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:13:08,970 INFO L93 Difference]: Finished difference Result 2554 states and 3848 transitions. [2024-11-08 17:13:08,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:13:08,970 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-08 17:13:08,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:13:08,977 INFO L225 Difference]: With dead ends: 2554 [2024-11-08 17:13:08,977 INFO L226 Difference]: Without dead ends: 2552 [2024-11-08 17:13:08,977 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 17:13:08,978 INFO L432 NwaCegarLoop]: 1600 mSDtfsCounter, 0 mSDsluCounter, 4791 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6391 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:13:08,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6391 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:13:08,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2552 states. [2024-11-08 17:13:09,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2552 to 2552. [2024-11-08 17:13:09,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2552 states, 2550 states have (on average 1.507450980392157) internal successors, (3844), 2551 states have internal predecessors, (3844), 0 states have call successors, (0), 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 17:13:09,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2552 states to 2552 states and 3844 transitions. [2024-11-08 17:13:09,022 INFO L78 Accepts]: Start accepts. Automaton has 2552 states and 3844 transitions. Word has length 93 [2024-11-08 17:13:09,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:13:09,022 INFO L471 AbstractCegarLoop]: Abstraction has 2552 states and 3844 transitions. [2024-11-08 17:13:09,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 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 17:13:09,022 INFO L276 IsEmpty]: Start isEmpty. Operand 2552 states and 3844 transitions. [2024-11-08 17:13:09,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 17:13:09,023 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:13:09,024 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:13:09,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 17:13:09,024 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:13:09,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:09,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1719553388, now seen corresponding path program 1 times [2024-11-08 17:13:09,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:09,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448572982] [2024-11-08 17:13:09,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:09,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:09,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:09,088 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 17:13:09,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:09,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448572982] [2024-11-08 17:13:09,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448572982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:09,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:09,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:13:09,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731318776] [2024-11-08 17:13:09,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:09,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:13:09,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:09,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:13:09,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:13:09,089 INFO L87 Difference]: Start difference. First operand 2552 states and 3844 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 17:13:09,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:13:09,113 INFO L93 Difference]: Finished difference Result 2794 states and 4225 transitions. [2024-11-08 17:13:09,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:13:09,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-11-08 17:13:09,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:13:09,120 INFO L225 Difference]: With dead ends: 2794 [2024-11-08 17:13:09,120 INFO L226 Difference]: Without dead ends: 2670 [2024-11-08 17:13:09,120 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 17:13:09,121 INFO L432 NwaCegarLoop]: 1685 mSDtfsCounter, 1526 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 1783 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 17:13:09,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1526 Valid, 1783 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:13:09,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2670 states. [2024-11-08 17:13:09,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2670 to 2668. [2024-11-08 17:13:09,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2668 states, 2666 states have (on average 1.5097524381095273) internal successors, (4025), 2667 states have internal predecessors, (4025), 0 states have call successors, (0), 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 17:13:09,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2668 states to 2668 states and 4025 transitions. [2024-11-08 17:13:09,154 INFO L78 Accepts]: Start accepts. Automaton has 2668 states and 4025 transitions. Word has length 94 [2024-11-08 17:13:09,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:13:09,154 INFO L471 AbstractCegarLoop]: Abstraction has 2668 states and 4025 transitions. [2024-11-08 17:13:09,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 17:13:09,155 INFO L276 IsEmpty]: Start isEmpty. Operand 2668 states and 4025 transitions. [2024-11-08 17:13:09,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 17:13:09,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:13:09,155 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:13:09,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 17:13:09,155 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:13:09,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:09,156 INFO L85 PathProgramCache]: Analyzing trace with hash 593433492, now seen corresponding path program 1 times [2024-11-08 17:13:09,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:09,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249905267] [2024-11-08 17:13:09,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:09,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:09,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:09,214 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 17:13:09,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:09,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249905267] [2024-11-08 17:13:09,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249905267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:09,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:09,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:13:09,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917771813] [2024-11-08 17:13:09,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:09,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:13:09,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:09,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:13:09,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:13:09,216 INFO L87 Difference]: Start difference. First operand 2668 states and 4025 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 17:13:09,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:13:09,242 INFO L93 Difference]: Finished difference Result 3330 states and 5065 transitions. [2024-11-08 17:13:09,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:13:09,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-11-08 17:13:09,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:13:09,249 INFO L225 Difference]: With dead ends: 3330 [2024-11-08 17:13:09,249 INFO L226 Difference]: Without dead ends: 2987 [2024-11-08 17:13:09,250 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 17:13:09,251 INFO L432 NwaCegarLoop]: 1687 mSDtfsCounter, 1524 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 1789 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 17:13:09,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1524 Valid, 1789 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:13:09,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2987 states. [2024-11-08 17:13:09,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2987 to 2985. [2024-11-08 17:13:09,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2985 states, 2983 states have (on average 1.5142474019443513) internal successors, (4517), 2984 states have internal predecessors, (4517), 0 states have call successors, (0), 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 17:13:09,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2985 states to 2985 states and 4517 transitions. [2024-11-08 17:13:09,288 INFO L78 Accepts]: Start accepts. Automaton has 2985 states and 4517 transitions. Word has length 94 [2024-11-08 17:13:09,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:13:09,288 INFO L471 AbstractCegarLoop]: Abstraction has 2985 states and 4517 transitions. [2024-11-08 17:13:09,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 17:13:09,289 INFO L276 IsEmpty]: Start isEmpty. Operand 2985 states and 4517 transitions. [2024-11-08 17:13:09,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 17:13:09,289 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:13:09,289 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:13:09,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 17:13:09,289 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:13:09,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:09,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1596549740, now seen corresponding path program 1 times [2024-11-08 17:13:09,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:09,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450442154] [2024-11-08 17:13:09,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:09,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:09,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:09,348 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 17:13:09,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:09,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450442154] [2024-11-08 17:13:09,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450442154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:09,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:09,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:13:09,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883492421] [2024-11-08 17:13:09,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:09,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:13:09,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:09,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:13:09,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:13:09,350 INFO L87 Difference]: Start difference. First operand 2985 states and 4517 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 17:13:09,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:13:09,381 INFO L93 Difference]: Finished difference Result 4257 states and 6499 transitions. [2024-11-08 17:13:09,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:13:09,381 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-11-08 17:13:09,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:13:09,390 INFO L225 Difference]: With dead ends: 4257 [2024-11-08 17:13:09,390 INFO L226 Difference]: Without dead ends: 3597 [2024-11-08 17:13:09,391 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 17:13:09,392 INFO L432 NwaCegarLoop]: 1675 mSDtfsCounter, 1520 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1520 SdHoareTripleChecker+Valid, 1785 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 17:13:09,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1520 Valid, 1785 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:13:09,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3597 states. [2024-11-08 17:13:09,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3597 to 3595. [2024-11-08 17:13:09,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3595 states, 3593 states have (on average 1.5176732535485666) internal successors, (5453), 3594 states have internal predecessors, (5453), 0 states have call successors, (0), 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 17:13:09,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3595 states to 3595 states and 5453 transitions. [2024-11-08 17:13:09,449 INFO L78 Accepts]: Start accepts. Automaton has 3595 states and 5453 transitions. Word has length 94 [2024-11-08 17:13:09,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:13:09,449 INFO L471 AbstractCegarLoop]: Abstraction has 3595 states and 5453 transitions. [2024-11-08 17:13:09,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 17:13:09,449 INFO L276 IsEmpty]: Start isEmpty. Operand 3595 states and 5453 transitions. [2024-11-08 17:13:09,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 17:13:09,450 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:13:09,450 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:13:09,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 17:13:09,450 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:13:09,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:09,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1332693356, now seen corresponding path program 1 times [2024-11-08 17:13:09,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:09,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628941950] [2024-11-08 17:13:09,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:09,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:09,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:09,546 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 17:13:09,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:09,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628941950] [2024-11-08 17:13:09,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628941950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:09,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:09,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:13:09,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233255459] [2024-11-08 17:13:09,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:09,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:13:09,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:09,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:13:09,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:13:09,547 INFO L87 Difference]: Start difference. First operand 3595 states and 5453 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 17:13:09,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:13:09,593 INFO L93 Difference]: Finished difference Result 6039 states and 9223 transitions. [2024-11-08 17:13:09,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:13:09,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-11-08 17:13:09,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:13:09,610 INFO L225 Difference]: With dead ends: 6039 [2024-11-08 17:13:09,610 INFO L226 Difference]: Without dead ends: 4769 [2024-11-08 17:13:09,614 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 17:13:09,614 INFO L432 NwaCegarLoop]: 1673 mSDtfsCounter, 1518 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 1787 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 17:13:09,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 1787 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:13:09,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4769 states. [2024-11-08 17:13:09,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4769 to 4767. [2024-11-08 17:13:09,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4767 states, 4765 states have (on average 1.5171038824763903) internal successors, (7229), 4766 states have internal predecessors, (7229), 0 states have call successors, (0), 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 17:13:09,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4767 states to 4767 states and 7229 transitions. [2024-11-08 17:13:09,748 INFO L78 Accepts]: Start accepts. Automaton has 4767 states and 7229 transitions. Word has length 94 [2024-11-08 17:13:09,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:13:09,749 INFO L471 AbstractCegarLoop]: Abstraction has 4767 states and 7229 transitions. [2024-11-08 17:13:09,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 17:13:09,749 INFO L276 IsEmpty]: Start isEmpty. Operand 4767 states and 7229 transitions. [2024-11-08 17:13:09,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 17:13:09,749 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:13:09,750 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:13:09,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 17:13:09,750 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:13:09,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:09,750 INFO L85 PathProgramCache]: Analyzing trace with hash -94431340, now seen corresponding path program 1 times [2024-11-08 17:13:09,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:09,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431407028] [2024-11-08 17:13:09,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:09,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:09,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:09,814 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 17:13:09,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:09,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431407028] [2024-11-08 17:13:09,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431407028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:09,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:09,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:13:09,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697194318] [2024-11-08 17:13:09,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:09,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:13:09,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:09,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:13:09,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:13:09,816 INFO L87 Difference]: Start difference. First operand 4767 states and 7229 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 17:13:09,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:13:09,885 INFO L93 Difference]: Finished difference Result 9459 states and 14383 transitions. [2024-11-08 17:13:09,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:13:09,886 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-11-08 17:13:09,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:13:09,896 INFO L225 Difference]: With dead ends: 9459 [2024-11-08 17:13:09,897 INFO L226 Difference]: Without dead ends: 7017 [2024-11-08 17:13:09,900 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 17:13:09,901 INFO L432 NwaCegarLoop]: 1671 mSDtfsCounter, 1516 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1789 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 17:13:09,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1789 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:13:09,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7017 states. [2024-11-08 17:13:09,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7017 to 7015. [2024-11-08 17:13:10,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7015 states, 7013 states have (on average 1.5099101668330244) internal successors, (10589), 7014 states have internal predecessors, (10589), 0 states have call successors, (0), 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 17:13:10,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7015 states to 7015 states and 10589 transitions. [2024-11-08 17:13:10,020 INFO L78 Accepts]: Start accepts. Automaton has 7015 states and 10589 transitions. Word has length 94 [2024-11-08 17:13:10,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:13:10,020 INFO L471 AbstractCegarLoop]: Abstraction has 7015 states and 10589 transitions. [2024-11-08 17:13:10,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 17:13:10,021 INFO L276 IsEmpty]: Start isEmpty. Operand 7015 states and 10589 transitions. [2024-11-08 17:13:10,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 17:13:10,022 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:13:10,022 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:13:10,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 17:13:10,022 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:13:10,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:10,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1985067156, now seen corresponding path program 1 times [2024-11-08 17:13:10,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:10,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201380557] [2024-11-08 17:13:10,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:10,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:10,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:10,085 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 17:13:10,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:10,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201380557] [2024-11-08 17:13:10,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201380557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:10,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:10,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:13:10,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811141255] [2024-11-08 17:13:10,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:10,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:13:10,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:10,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:13:10,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:13:10,087 INFO L87 Difference]: Start difference. First operand 7015 states and 10589 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 17:13:10,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:13:10,196 INFO L93 Difference]: Finished difference Result 16011 states and 24127 transitions. [2024-11-08 17:13:10,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:13:10,197 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-11-08 17:13:10,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:13:10,212 INFO L225 Difference]: With dead ends: 16011 [2024-11-08 17:13:10,212 INFO L226 Difference]: Without dead ends: 11321 [2024-11-08 17:13:10,220 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 17:13:10,221 INFO L432 NwaCegarLoop]: 1669 mSDtfsCounter, 1514 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1791 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 17:13:10,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1791 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:13:10,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11321 states. [2024-11-08 17:13:10,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11321 to 11319. [2024-11-08 17:13:10,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11319 states, 11317 states have (on average 1.4955376866660777) internal successors, (16925), 11318 states have internal predecessors, (16925), 0 states have call successors, (0), 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 17:13:10,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11319 states to 11319 states and 16925 transitions. [2024-11-08 17:13:10,464 INFO L78 Accepts]: Start accepts. Automaton has 11319 states and 16925 transitions. Word has length 94 [2024-11-08 17:13:10,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:13:10,464 INFO L471 AbstractCegarLoop]: Abstraction has 11319 states and 16925 transitions. [2024-11-08 17:13:10,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 17:13:10,464 INFO L276 IsEmpty]: Start isEmpty. Operand 11319 states and 16925 transitions. [2024-11-08 17:13:10,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 17:13:10,465 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:13:10,465 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:13:10,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 17:13:10,465 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:13:10,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:10,466 INFO L85 PathProgramCache]: Analyzing trace with hash -528967276, now seen corresponding path program 1 times [2024-11-08 17:13:10,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:10,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580355241] [2024-11-08 17:13:10,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:10,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:10,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:10,525 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 17:13:10,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:10,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580355241] [2024-11-08 17:13:10,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580355241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:10,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:10,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:13:10,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65486093] [2024-11-08 17:13:10,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:10,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:13:10,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:10,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:13:10,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:13:10,526 INFO L87 Difference]: Start difference. First operand 11319 states and 16925 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 17:13:10,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:13:10,723 INFO L93 Difference]: Finished difference Result 28539 states and 42463 transitions. [2024-11-08 17:13:10,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:13:10,723 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-11-08 17:13:10,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:13:10,754 INFO L225 Difference]: With dead ends: 28539 [2024-11-08 17:13:10,754 INFO L226 Difference]: Without dead ends: 19545 [2024-11-08 17:13:10,769 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 17:13:10,769 INFO L432 NwaCegarLoop]: 1667 mSDtfsCounter, 1512 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 1793 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 17:13:10,769 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 1793 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:13:10,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19545 states. [2024-11-08 17:13:11,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19545 to 19543. [2024-11-08 17:13:11,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19543 states, 19541 states have (on average 1.475308326083619) internal successors, (28829), 19542 states have internal predecessors, (28829), 0 states have call successors, (0), 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 17:13:11,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19543 states to 19543 states and 28829 transitions. [2024-11-08 17:13:11,191 INFO L78 Accepts]: Start accepts. Automaton has 19543 states and 28829 transitions. Word has length 94 [2024-11-08 17:13:11,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:13:11,191 INFO L471 AbstractCegarLoop]: Abstraction has 19543 states and 28829 transitions. [2024-11-08 17:13:11,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 17:13:11,191 INFO L276 IsEmpty]: Start isEmpty. Operand 19543 states and 28829 transitions. [2024-11-08 17:13:11,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 17:13:11,192 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:13:11,192 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:13:11,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 17:13:11,192 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:13:11,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:11,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1759464300, now seen corresponding path program 1 times [2024-11-08 17:13:11,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:11,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633619962] [2024-11-08 17:13:11,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:11,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:11,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:11,257 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 17:13:11,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:11,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633619962] [2024-11-08 17:13:11,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633619962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:11,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:11,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:13:11,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023564908] [2024-11-08 17:13:11,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:11,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:13:11,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:11,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:13:11,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:13:11,259 INFO L87 Difference]: Start difference. First operand 19543 states and 28829 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 17:13:11,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:13:11,784 INFO L93 Difference]: Finished difference Result 52443 states and 76831 transitions. [2024-11-08 17:13:11,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:13:11,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-11-08 17:13:11,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:13:11,843 INFO L225 Difference]: With dead ends: 52443 [2024-11-08 17:13:11,843 INFO L226 Difference]: Without dead ends: 35225 [2024-11-08 17:13:11,861 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 17:13:11,862 INFO L432 NwaCegarLoop]: 1685 mSDtfsCounter, 1522 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1522 SdHoareTripleChecker+Valid, 1791 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 17:13:11,862 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1522 Valid, 1791 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:13:11,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35225 states. [2024-11-08 17:13:12,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35225 to 35223. [2024-11-08 17:13:12,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35223 states, 35221 states have (on average 1.4508673802560972) internal successors, (51101), 35222 states have internal predecessors, (51101), 0 states have call successors, (0), 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 17:13:12,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35223 states to 35223 states and 51101 transitions. [2024-11-08 17:13:12,742 INFO L78 Accepts]: Start accepts. Automaton has 35223 states and 51101 transitions. Word has length 94 [2024-11-08 17:13:12,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:13:12,742 INFO L471 AbstractCegarLoop]: Abstraction has 35223 states and 51101 transitions. [2024-11-08 17:13:12,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 17:13:12,743 INFO L276 IsEmpty]: Start isEmpty. Operand 35223 states and 51101 transitions. [2024-11-08 17:13:12,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 17:13:12,749 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:13:12,750 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:13:12,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 17:13:12,750 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:13:12,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:12,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1733023753, now seen corresponding path program 1 times [2024-11-08 17:13:12,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:12,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976941948] [2024-11-08 17:13:12,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:12,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:12,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:12,986 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 17:13:12,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:12,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976941948] [2024-11-08 17:13:12,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976941948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:12,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:12,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 17:13:12,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486071022] [2024-11-08 17:13:12,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:12,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:13:12,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:12,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:13:12,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:13:12,989 INFO L87 Difference]: Start difference. First operand 35223 states and 51101 transitions. Second operand has 10 states, 10 states have (on average 11.8) internal successors, (118), 10 states have internal predecessors, (118), 0 states have call successors, (0), 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 17:13:16,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:13:16,932 INFO L93 Difference]: Finished difference Result 295209 states and 427174 transitions. [2024-11-08 17:13:16,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 17:13:16,933 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.8) internal successors, (118), 10 states have internal predecessors, (118), 0 states have call successors, (0), 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 119 [2024-11-08 17:13:16,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:13:17,548 INFO L225 Difference]: With dead ends: 295209 [2024-11-08 17:13:17,548 INFO L226 Difference]: Without dead ends: 272167 [2024-11-08 17:13:17,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-08 17:13:17,608 INFO L432 NwaCegarLoop]: 1701 mSDtfsCounter, 11707 mSDsluCounter, 3547 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11707 SdHoareTripleChecker+Valid, 5248 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:13:17,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11707 Valid, 5248 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:13:17,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272167 states. [2024-11-08 17:13:20,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272167 to 63255. [2024-11-08 17:13:20,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63255 states, 63253 states have (on average 1.4432991320569775) internal successors, (91293), 63254 states have internal predecessors, (91293), 0 states have call successors, (0), 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 17:13:20,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63255 states to 63255 states and 91293 transitions. [2024-11-08 17:13:20,583 INFO L78 Accepts]: Start accepts. Automaton has 63255 states and 91293 transitions. Word has length 119 [2024-11-08 17:13:20,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:13:20,585 INFO L471 AbstractCegarLoop]: Abstraction has 63255 states and 91293 transitions. [2024-11-08 17:13:20,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.8) internal successors, (118), 10 states have internal predecessors, (118), 0 states have call successors, (0), 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 17:13:20,585 INFO L276 IsEmpty]: Start isEmpty. Operand 63255 states and 91293 transitions. [2024-11-08 17:13:20,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 17:13:20,593 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:13:20,593 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:13:20,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 17:13:20,594 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:13:20,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:20,594 INFO L85 PathProgramCache]: Analyzing trace with hash 579963127, now seen corresponding path program 1 times [2024-11-08 17:13:20,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:20,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278905547] [2024-11-08 17:13:20,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:20,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:20,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:20,806 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 17:13:20,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:20,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278905547] [2024-11-08 17:13:20,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278905547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:20,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:20,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 17:13:20,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93589116] [2024-11-08 17:13:20,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:20,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:13:20,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:20,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:13:20,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:13:20,809 INFO L87 Difference]: Start difference. First operand 63255 states and 91293 transitions. Second operand has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 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 17:13:26,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:13:26,307 INFO L93 Difference]: Finished difference Result 328105 states and 474534 transitions. [2024-11-08 17:13:26,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 17:13:26,308 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 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 119 [2024-11-08 17:13:26,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:13:26,957 INFO L225 Difference]: With dead ends: 328105 [2024-11-08 17:13:26,957 INFO L226 Difference]: Without dead ends: 295207 [2024-11-08 17:13:27,009 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-08 17:13:27,009 INFO L432 NwaCegarLoop]: 1700 mSDtfsCounter, 11709 mSDsluCounter, 3495 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11709 SdHoareTripleChecker+Valid, 5195 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:13:27,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11709 Valid, 5195 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:13:27,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295207 states. [2024-11-08 17:13:31,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295207 to 107671. [2024-11-08 17:13:31,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107671 states, 107669 states have (on average 1.4387521013476487) internal successors, (154909), 107670 states have internal predecessors, (154909), 0 states have call successors, (0), 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 17:13:31,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107671 states to 107671 states and 154909 transitions. [2024-11-08 17:13:31,468 INFO L78 Accepts]: Start accepts. Automaton has 107671 states and 154909 transitions. Word has length 119 [2024-11-08 17:13:31,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:13:31,469 INFO L471 AbstractCegarLoop]: Abstraction has 107671 states and 154909 transitions. [2024-11-08 17:13:31,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 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 17:13:31,469 INFO L276 IsEmpty]: Start isEmpty. Operand 107671 states and 154909 transitions. [2024-11-08 17:13:31,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 17:13:31,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:13:31,480 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:13:31,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 17:13:31,480 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:13:31,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:31,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1610020105, now seen corresponding path program 1 times [2024-11-08 17:13:31,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:31,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689016875] [2024-11-08 17:13:31,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:31,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:31,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:31,755 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-08 17:13:31,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:31,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689016875] [2024-11-08 17:13:31,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689016875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:31,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:31,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 17:13:31,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452284241] [2024-11-08 17:13:31,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:31,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:13:31,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:31,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:13:31,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:13:31,758 INFO L87 Difference]: Start difference. First operand 107671 states and 154909 transitions. Second operand has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 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 17:13:38,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:13:38,855 INFO L93 Difference]: Finished difference Result 361001 states and 521766 transitions. [2024-11-08 17:13:38,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 17:13:38,856 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 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 119 [2024-11-08 17:13:38,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:13:39,461 INFO L225 Difference]: With dead ends: 361001 [2024-11-08 17:13:39,461 INFO L226 Difference]: Without dead ends: 328103 [2024-11-08 17:13:39,510 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-08 17:13:39,511 INFO L432 NwaCegarLoop]: 1698 mSDtfsCounter, 11751 mSDsluCounter, 3518 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11751 SdHoareTripleChecker+Valid, 5216 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:13:39,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11751 Valid, 5216 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:13:39,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328103 states. [2024-11-08 17:13:44,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328103 to 140567. [2024-11-08 17:13:44,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140567 states, 140565 states have (on average 1.4380606836694767) internal successors, (202141), 140566 states have internal predecessors, (202141), 0 states have call successors, (0), 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 17:13:45,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140567 states to 140567 states and 202141 transitions. [2024-11-08 17:13:45,258 INFO L78 Accepts]: Start accepts. Automaton has 140567 states and 202141 transitions. Word has length 119 [2024-11-08 17:13:45,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:13:45,259 INFO L471 AbstractCegarLoop]: Abstraction has 140567 states and 202141 transitions. [2024-11-08 17:13:45,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 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 17:13:45,259 INFO L276 IsEmpty]: Start isEmpty. Operand 140567 states and 202141 transitions. [2024-11-08 17:13:45,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 17:13:45,271 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:13:45,271 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:13:45,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 17:13:45,271 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:13:45,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:45,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1346163721, now seen corresponding path program 1 times [2024-11-08 17:13:45,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:45,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316145488] [2024-11-08 17:13:45,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:45,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:45,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:45,515 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 17:13:45,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:45,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316145488] [2024-11-08 17:13:45,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316145488] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:45,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:45,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 17:13:45,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954443822] [2024-11-08 17:13:45,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:45,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:13:45,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:45,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:13:45,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:13:45,517 INFO L87 Difference]: Start difference. First operand 140567 states and 202141 transitions. Second operand has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)