./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.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.ufo.BOUNDED-16.pals+Problem12_label00.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 8c74c5a9435f0a63b4462639dc1dbde4e8823a1089df2fad63ca5f5dce7dc603 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 17:10:47,756 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:10:47,822 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 17:10:47,829 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:10:47,829 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:10:47,857 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:10:47,858 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:10:47,858 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:10:47,859 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:10:47,859 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:10:47,860 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:10:47,860 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:10:47,861 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:10:47,861 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:10:47,861 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:10:47,862 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:10:47,862 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:10:47,863 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:10:47,863 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:10:47,863 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:10:47,864 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:10:47,864 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:10:47,865 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:10:47,865 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:10:47,865 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:10:47,866 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:10:47,866 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:10:47,866 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:10:47,867 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:10:47,867 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:10:47,868 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:10:47,868 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:10:47,868 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:10:47,869 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:10:47,869 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:10:47,869 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:10:47,870 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:10:47,870 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:10:47,870 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:10:47,871 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:10:47,871 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:10:47,871 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:10:47,872 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c74c5a9435f0a63b4462639dc1dbde4e8823a1089df2fad63ca5f5dce7dc603 [2024-11-08 17:10:48,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:10:48,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:10:48,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:10:48,152 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:10:48,152 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:10:48,154 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.c [2024-11-08 17:10:49,698 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:10:50,166 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:10:50,167 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.c [2024-11-08 17:10:50,208 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efaa29236/6bbb11f8825f4a248526d51aa20c8309/FLAG50a1888f7 [2024-11-08 17:10:50,237 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efaa29236/6bbb11f8825f4a248526d51aa20c8309 [2024-11-08 17:10:50,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:10:50,243 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:10:50,245 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:10:50,245 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:10:50,251 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:10:50,251 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:10:50" (1/1) ... [2024-11-08 17:10:50,254 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@496ea736 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:50, skipping insertion in model container [2024-11-08 17:10:50,254 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:10:50" (1/1) ... [2024-11-08 17:10:50,367 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:10:50,773 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.ufo.BOUNDED-16.pals+Problem12_label00.c[26860,26873] [2024-11-08 17:10:50,814 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.ufo.BOUNDED-16.pals+Problem12_label00.c[28735,28748] [2024-11-08 17:10:51,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:10:51,496 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:10:51,538 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.ufo.BOUNDED-16.pals+Problem12_label00.c[26860,26873] [2024-11-08 17:10:51,545 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.ufo.BOUNDED-16.pals+Problem12_label00.c[28735,28748] [2024-11-08 17:10:51,947 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:10:51,978 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:10:51,979 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:51 WrapperNode [2024-11-08 17:10:51,979 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:10:51,980 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:10:51,980 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:10:51,980 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:10:51,987 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:51" (1/1) ... [2024-11-08 17:10:52,047 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:51" (1/1) ... [2024-11-08 17:10:52,287 INFO L138 Inliner]: procedures = 39, calls = 25, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 5293 [2024-11-08 17:10:52,287 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:10:52,288 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:10:52,288 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:10:52,288 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:10:52,300 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:51" (1/1) ... [2024-11-08 17:10:52,300 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:51" (1/1) ... [2024-11-08 17:10:52,482 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:51" (1/1) ... [2024-11-08 17:10:52,643 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 17:10:52,643 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:51" (1/1) ... [2024-11-08 17:10:52,643 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:51" (1/1) ... [2024-11-08 17:10:52,840 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:51" (1/1) ... [2024-11-08 17:10:52,875 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:51" (1/1) ... [2024-11-08 17:10:52,906 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:51" (1/1) ... [2024-11-08 17:10:52,928 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:51" (1/1) ... [2024-11-08 17:10:52,987 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:10:52,989 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:10:52,990 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:10:52,990 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:10:52,991 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:51" (1/1) ... [2024-11-08 17:10:52,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:10:53,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 17:10:53,027 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 17:10:53,030 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 17:10:53,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:10:53,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:10:53,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:10:53,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:10:53,262 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:10:53,265 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:10:57,543 INFO L? ?]: Removed 759 outVars from TransFormulas that were not future-live. [2024-11-08 17:10:57,544 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:10:57,588 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:10:57,588 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 17:10:57,588 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:10:57 BoogieIcfgContainer [2024-11-08 17:10:57,588 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:10:57,591 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:10:57,592 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:10:57,595 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:10:57,595 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:10:50" (1/3) ... [2024-11-08 17:10:57,596 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51008379 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:10:57, skipping insertion in model container [2024-11-08 17:10:57,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:51" (2/3) ... [2024-11-08 17:10:57,598 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51008379 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:10:57, skipping insertion in model container [2024-11-08 17:10:57,598 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:10:57" (3/3) ... [2024-11-08 17:10:57,599 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.c [2024-11-08 17:10:57,616 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:10:57,616 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 17:10:57,730 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:10:57,737 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;@3402ce3f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:10:57,737 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 17:10:57,749 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 17:10:57,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-08 17:10:57,756 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:10:57,757 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:10:57,758 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:10:57,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:10:57,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1911563563, now seen corresponding path program 1 times [2024-11-08 17:10:57,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:10:57,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342460302] [2024-11-08 17:10:57,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:10:57,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:10:57,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:10:58,159 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 17:10:58,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:10:58,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342460302] [2024-11-08 17:10:58,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342460302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:10:58,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:10:58,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:10:58,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302849339] [2024-11-08 17:10:58,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:10:58,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:10:58,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:10:58,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:10:58,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:10:58,193 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 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states 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 17:11:01,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:01,483 INFO L93 Difference]: Finished difference Result 2582 states and 4966 transitions. [2024-11-08 17:11:01,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:11:01,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 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 16 [2024-11-08 17:11:01,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:01,509 INFO L225 Difference]: With dead ends: 2582 [2024-11-08 17:11:01,509 INFO L226 Difference]: Without dead ends: 1632 [2024-11-08 17:11:01,515 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:11:01,518 INFO L432 NwaCegarLoop]: 375 mSDtfsCounter, 1110 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2437 mSolverCounterSat, 771 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 3208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 771 IncrementalHoareTripleChecker+Valid, 2437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:11:01,518 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1110 Valid, 386 Invalid, 3208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [771 Valid, 2437 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-08 17:11:01,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1632 states. [2024-11-08 17:11:01,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1632 to 1632. [2024-11-08 17:11:01,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1632 states, 1630 states have (on average 1.8423312883435583) internal successors, (3003), 1631 states have internal predecessors, (3003), 0 states have call successors, (0), 0 states 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 17:11:01,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1632 states to 1632 states and 3003 transitions. [2024-11-08 17:11:01,628 INFO L78 Accepts]: Start accepts. Automaton has 1632 states and 3003 transitions. Word has length 16 [2024-11-08 17:11:01,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:01,629 INFO L471 AbstractCegarLoop]: Abstraction has 1632 states and 3003 transitions. [2024-11-08 17:11:01,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states 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 17:11:01,630 INFO L276 IsEmpty]: Start isEmpty. Operand 1632 states and 3003 transitions. [2024-11-08 17:11:01,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-08 17:11:01,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:01,632 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 17:11:01,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:11:01,633 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:01,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:01,634 INFO L85 PathProgramCache]: Analyzing trace with hash -194578388, now seen corresponding path program 1 times [2024-11-08 17:11:01,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:01,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107044484] [2024-11-08 17:11:01,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:01,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:11:01,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:01,935 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 17:11:01,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:11:01,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107044484] [2024-11-08 17:11:01,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107044484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:01,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:01,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:11:01,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948778481] [2024-11-08 17:11:01,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:01,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:11:01,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:01,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:11:01,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:11:01,942 INFO L87 Difference]: Start difference. First operand 1632 states and 3003 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 17:11:02,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:02,049 INFO L93 Difference]: Finished difference Result 1696 states and 3104 transitions. [2024-11-08 17:11:02,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:11:02,050 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 17:11:02,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:02,056 INFO L225 Difference]: With dead ends: 1696 [2024-11-08 17:11:02,056 INFO L226 Difference]: Without dead ends: 1632 [2024-11-08 17:11:02,057 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 17:11:02,058 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 17:11:02,059 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 17:11:02,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1632 states. [2024-11-08 17:11:02,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1632 to 1632. [2024-11-08 17:11:02,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1632 states, 1630 states have (on average 1.8049079754601227) internal successors, (2942), 1631 states have internal predecessors, (2942), 0 states have call successors, (0), 0 states 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 17:11:02,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1632 states to 1632 states and 2942 transitions. [2024-11-08 17:11:02,094 INFO L78 Accepts]: Start accepts. Automaton has 1632 states and 2942 transitions. Word has length 30 [2024-11-08 17:11:02,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:02,095 INFO L471 AbstractCegarLoop]: Abstraction has 1632 states and 2942 transitions. [2024-11-08 17:11:02,095 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 17:11:02,095 INFO L276 IsEmpty]: Start isEmpty. Operand 1632 states and 2942 transitions. [2024-11-08 17:11:02,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-08 17:11:02,100 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:02,101 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:11:02,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:11:02,102 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:02,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:02,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1329435520, now seen corresponding path program 1 times [2024-11-08 17:11:02,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:02,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748196827] [2024-11-08 17:11:02,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:02,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:11:02,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:02,456 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:11:02,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:11:02,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748196827] [2024-11-08 17:11:02,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748196827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:02,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:02,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:11:02,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025518729] [2024-11-08 17:11:02,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:02,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:11:02,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:02,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:11:02,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:11:02,462 INFO L87 Difference]: Start difference. First operand 1632 states and 2942 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:05,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:05,629 INFO L93 Difference]: Finished difference Result 4640 states and 8494 transitions. [2024-11-08 17:11:05,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:11:05,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-08 17:11:05,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:05,642 INFO L225 Difference]: With dead ends: 4640 [2024-11-08 17:11:05,642 INFO L226 Difference]: Without dead ends: 3136 [2024-11-08 17:11:05,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:11:05,647 INFO L432 NwaCegarLoop]: 631 mSDtfsCounter, 895 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2262 mSolverCounterSat, 651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 895 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 2913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 2262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:11:05,647 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [895 Valid, 638 Invalid, 2913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [651 Valid, 2262 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-08 17:11:05,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3136 states. [2024-11-08 17:11:05,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3136 to 3134. [2024-11-08 17:11:05,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3134 states, 3132 states have (on average 1.5533205619412516) internal successors, (4865), 3133 states have internal predecessors, (4865), 0 states have call successors, (0), 0 states 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 17:11:05,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3134 states to 3134 states and 4865 transitions. [2024-11-08 17:11:05,736 INFO L78 Accepts]: Start accepts. Automaton has 3134 states and 4865 transitions. Word has length 85 [2024-11-08 17:11:05,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:05,737 INFO L471 AbstractCegarLoop]: Abstraction has 3134 states and 4865 transitions. [2024-11-08 17:11:05,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:05,738 INFO L276 IsEmpty]: Start isEmpty. Operand 3134 states and 4865 transitions. [2024-11-08 17:11:05,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-08 17:11:05,743 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:05,743 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:11:05,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:11:05,744 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:05,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:05,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1993849947, now seen corresponding path program 1 times [2024-11-08 17:11:05,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:05,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505436015] [2024-11-08 17:11:05,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:05,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:11:05,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:05,918 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:11:05,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:11:05,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505436015] [2024-11-08 17:11:05,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505436015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:05,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:05,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:11:05,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138502309] [2024-11-08 17:11:05,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:05,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:11:05,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:05,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:11:05,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:11:05,922 INFO L87 Difference]: Start difference. First operand 3134 states and 4865 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:08,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:08,736 INFO L93 Difference]: Finished difference Result 9144 states and 14262 transitions. [2024-11-08 17:11:08,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:11:08,736 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2024-11-08 17:11:08,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:08,760 INFO L225 Difference]: With dead ends: 9144 [2024-11-08 17:11:08,760 INFO L226 Difference]: Without dead ends: 6138 [2024-11-08 17:11:08,765 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 17:11:08,766 INFO L432 NwaCegarLoop]: 1576 mSDtfsCounter, 741 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 2538 mSolverCounterSat, 555 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 1748 SdHoareTripleChecker+Invalid, 3093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 555 IncrementalHoareTripleChecker+Valid, 2538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-08 17:11:08,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 1748 Invalid, 3093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [555 Valid, 2538 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-08 17:11:08,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6138 states. [2024-11-08 17:11:08,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6138 to 6138. [2024-11-08 17:11:08,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6138 states, 6136 states have (on average 1.4809322033898304) internal successors, (9087), 6137 states have internal predecessors, (9087), 0 states have call successors, (0), 0 states 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 17:11:08,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6138 states to 6138 states and 9087 transitions. [2024-11-08 17:11:08,899 INFO L78 Accepts]: Start accepts. Automaton has 6138 states and 9087 transitions. Word has length 87 [2024-11-08 17:11:08,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:08,900 INFO L471 AbstractCegarLoop]: Abstraction has 6138 states and 9087 transitions. [2024-11-08 17:11:08,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:08,900 INFO L276 IsEmpty]: Start isEmpty. Operand 6138 states and 9087 transitions. [2024-11-08 17:11:08,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-08 17:11:08,903 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:08,903 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 17:11:08,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 17:11:08,903 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:08,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:08,904 INFO L85 PathProgramCache]: Analyzing trace with hash 255619932, now seen corresponding path program 1 times [2024-11-08 17:11:08,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:08,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093497466] [2024-11-08 17:11:08,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:08,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:11:08,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:09,282 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 17:11:09,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:11:09,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093497466] [2024-11-08 17:11:09,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093497466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:09,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:09,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 17:11:09,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632504231] [2024-11-08 17:11:09,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:09,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:11:09,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:09,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:11:09,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:11:09,288 INFO L87 Difference]: Start difference. First operand 6138 states and 9087 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 17:11:09,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:09,904 INFO L93 Difference]: Finished difference Result 7098 states and 10639 transitions. [2024-11-08 17:11:09,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 17:11:09,905 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 17:11:09,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:09,938 INFO L225 Difference]: With dead ends: 7098 [2024-11-08 17:11:09,939 INFO L226 Difference]: Without dead ends: 7038 [2024-11-08 17:11:09,944 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-11-08 17:11:09,945 INFO L432 NwaCegarLoop]: 1599 mSDtfsCounter, 13373 mSDsluCounter, 4789 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 17:11:09,946 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 17:11:09,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7038 states. [2024-11-08 17:11:10,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7038 to 6196. [2024-11-08 17:11:10,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6196 states, 6194 states have (on average 1.4822408782692928) internal successors, (9181), 6195 states have internal predecessors, (9181), 0 states have call successors, (0), 0 states 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 17:11:10,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6196 states to 6196 states and 9181 transitions. [2024-11-08 17:11:10,075 INFO L78 Accepts]: Start accepts. Automaton has 6196 states and 9181 transitions. Word has length 90 [2024-11-08 17:11:10,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:10,076 INFO L471 AbstractCegarLoop]: Abstraction has 6196 states and 9181 transitions. [2024-11-08 17:11:10,077 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 17:11:10,077 INFO L276 IsEmpty]: Start isEmpty. Operand 6196 states and 9181 transitions. [2024-11-08 17:11:10,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 17:11:10,078 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:10,078 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 17:11:10,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 17:11:10,080 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:10,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:10,081 INFO L85 PathProgramCache]: Analyzing trace with hash -578069748, now seen corresponding path program 1 times [2024-11-08 17:11:10,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:10,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004173287] [2024-11-08 17:11:10,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:10,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:11:10,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:10,198 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 17:11:10,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:11:10,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004173287] [2024-11-08 17:11:10,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004173287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:10,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:10,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:11:10,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507738415] [2024-11-08 17:11:10,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:10,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:11:10,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:10,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:11:10,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:11:10,202 INFO L87 Difference]: Start difference. First operand 6196 states and 9181 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 17:11:10,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:10,244 INFO L93 Difference]: Finished difference Result 6421 states and 9544 transitions. [2024-11-08 17:11:10,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:11:10,246 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 17:11:10,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:10,280 INFO L225 Difference]: With dead ends: 6421 [2024-11-08 17:11:10,280 INFO L226 Difference]: Without dead ends: 6303 [2024-11-08 17:11:10,285 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 17:11:10,286 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 17:11:10,286 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 17:11:10,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6303 states. [2024-11-08 17:11:10,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6303 to 6301. [2024-11-08 17:11:10,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6301 states, 6299 states have (on average 1.4842038418796635) internal successors, (9349), 6300 states have internal predecessors, (9349), 0 states have call successors, (0), 0 states 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 17:11:10,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6301 states to 6301 states and 9349 transitions. [2024-11-08 17:11:10,411 INFO L78 Accepts]: Start accepts. Automaton has 6301 states and 9349 transitions. Word has length 92 [2024-11-08 17:11:10,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:10,412 INFO L471 AbstractCegarLoop]: Abstraction has 6301 states and 9349 transitions. [2024-11-08 17:11:10,412 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 17:11:10,412 INFO L276 IsEmpty]: Start isEmpty. Operand 6301 states and 9349 transitions. [2024-11-08 17:11:10,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 17:11:10,413 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:10,413 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 17:11:10,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 17:11:10,414 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:10,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:10,414 INFO L85 PathProgramCache]: Analyzing trace with hash -511576236, now seen corresponding path program 1 times [2024-11-08 17:11:10,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:10,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886398178] [2024-11-08 17:11:10,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:10,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:11:10,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:10,991 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 17:11:10,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:11:10,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886398178] [2024-11-08 17:11:10,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886398178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:10,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:10,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 17:11:10,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033406219] [2024-11-08 17:11:10,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:10,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:11:10,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:10,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:11:10,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:11:10,994 INFO L87 Difference]: Start difference. First operand 6301 states and 9349 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 17:11:11,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:11,484 INFO L93 Difference]: Finished difference Result 6526 states and 9709 transitions. [2024-11-08 17:11:11,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 17:11:11,485 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 17:11:11,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:11,503 INFO L225 Difference]: With dead ends: 6526 [2024-11-08 17:11:11,503 INFO L226 Difference]: Without dead ends: 6303 [2024-11-08 17:11:11,506 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-11-08 17:11:11,509 INFO L432 NwaCegarLoop]: 1593 mSDtfsCounter, 12132 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12132 SdHoareTripleChecker+Valid, 2254 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:11:11,510 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12132 Valid, 2254 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:11:11,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6303 states. [2024-11-08 17:11:11,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6303 to 6301. [2024-11-08 17:11:11,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6301 states, 6299 states have (on average 1.4838863311636767) internal successors, (9347), 6300 states have internal predecessors, (9347), 0 states have call successors, (0), 0 states 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 17:11:11,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6301 states to 6301 states and 9347 transitions. [2024-11-08 17:11:11,633 INFO L78 Accepts]: Start accepts. Automaton has 6301 states and 9347 transitions. Word has length 92 [2024-11-08 17:11:11,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:11,634 INFO L471 AbstractCegarLoop]: Abstraction has 6301 states and 9347 transitions. [2024-11-08 17:11:11,635 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 17:11:11,635 INFO L276 IsEmpty]: Start isEmpty. Operand 6301 states and 9347 transitions. [2024-11-08 17:11:11,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 17:11:11,636 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:11,636 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 17:11:11,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 17:11:11,637 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:11,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:11,637 INFO L85 PathProgramCache]: Analyzing trace with hash 906283047, now seen corresponding path program 1 times [2024-11-08 17:11:11,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:11,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402792004] [2024-11-08 17:11:11,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:11,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:11:11,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:11,920 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 17:11:11,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:11:11,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402792004] [2024-11-08 17:11:11,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402792004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:11,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:11,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:11:11,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974886240] [2024-11-08 17:11:11,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:11,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:11:11,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:11,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:11:11,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:11:11,923 INFO L87 Difference]: Start difference. First operand 6301 states and 9347 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 17:11:11,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:11,972 INFO L93 Difference]: Finished difference Result 6309 states and 9356 transitions. [2024-11-08 17:11:11,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:11:11,973 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 17:11:11,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:11,985 INFO L225 Difference]: With dead ends: 6309 [2024-11-08 17:11:11,985 INFO L226 Difference]: Without dead ends: 6307 [2024-11-08 17:11:11,988 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 17:11:11,989 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 17:11:11,989 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 17:11:11,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6307 states. [2024-11-08 17:11:12,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6307 to 6307. [2024-11-08 17:11:12,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6307 states, 6305 states have (on average 1.4832672482157019) internal successors, (9352), 6306 states have internal predecessors, (9352), 0 states have call successors, (0), 0 states 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 17:11:12,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6307 states to 6307 states and 9352 transitions. [2024-11-08 17:11:12,085 INFO L78 Accepts]: Start accepts. Automaton has 6307 states and 9352 transitions. Word has length 93 [2024-11-08 17:11:12,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:12,085 INFO L471 AbstractCegarLoop]: Abstraction has 6307 states and 9352 transitions. [2024-11-08 17:11:12,085 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 17:11:12,086 INFO L276 IsEmpty]: Start isEmpty. Operand 6307 states and 9352 transitions. [2024-11-08 17:11:12,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 17:11:12,087 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:12,087 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:11:12,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 17:11:12,088 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:12,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:12,088 INFO L85 PathProgramCache]: Analyzing trace with hash 522484756, now seen corresponding path program 1 times [2024-11-08 17:11:12,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:12,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569429470] [2024-11-08 17:11:12,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:12,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:11:12,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:12,271 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:11:12,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:11:12,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569429470] [2024-11-08 17:11:12,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569429470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:12,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:12,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:11:12,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026658749] [2024-11-08 17:11:12,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:12,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:11:12,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:12,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:11:12,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:11:12,275 INFO L87 Difference]: Start difference. First operand 6307 states and 9352 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:16,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:16,357 INFO L93 Difference]: Finished difference Result 13068 states and 19216 transitions. [2024-11-08 17:11:16,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:11:16,357 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-08 17:11:16,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:16,371 INFO L225 Difference]: With dead ends: 13068 [2024-11-08 17:11:16,371 INFO L226 Difference]: Without dead ends: 7058 [2024-11-08 17:11:16,380 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 17:11:16,383 INFO L432 NwaCegarLoop]: 405 mSDtfsCounter, 2509 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 4864 mSolverCounterSat, 695 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2509 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 5559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 695 IncrementalHoareTripleChecker+Valid, 4864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-08 17:11:16,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2509 Valid, 422 Invalid, 5559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [695 Valid, 4864 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-08 17:11:16,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7058 states. [2024-11-08 17:11:16,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7058 to 7058. [2024-11-08 17:11:16,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7058 states, 7056 states have (on average 1.4088718820861679) internal successors, (9941), 7057 states have internal predecessors, (9941), 0 states have call successors, (0), 0 states 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 17:11:16,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7058 states to 7058 states and 9941 transitions. [2024-11-08 17:11:16,484 INFO L78 Accepts]: Start accepts. Automaton has 7058 states and 9941 transitions. Word has length 93 [2024-11-08 17:11:16,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:16,485 INFO L471 AbstractCegarLoop]: Abstraction has 7058 states and 9941 transitions. [2024-11-08 17:11:16,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:16,485 INFO L276 IsEmpty]: Start isEmpty. Operand 7058 states and 9941 transitions. [2024-11-08 17:11:16,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 17:11:16,488 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:16,488 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 17:11:16,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 17:11:16,489 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:16,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:16,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1719553388, now seen corresponding path program 1 times [2024-11-08 17:11:16,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:16,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891948576] [2024-11-08 17:11:16,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:16,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:11:16,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:16,628 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 17:11:16,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:11:16,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891948576] [2024-11-08 17:11:16,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891948576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:16,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:16,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:11:16,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727566725] [2024-11-08 17:11:16,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:16,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:11:16,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:16,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:11:16,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:11:16,631 INFO L87 Difference]: Start difference. First operand 7058 states and 9941 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 17:11:16,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:16,679 INFO L93 Difference]: Finished difference Result 7300 states and 10322 transitions. [2024-11-08 17:11:16,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:11:16,679 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 17:11:16,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:16,692 INFO L225 Difference]: With dead ends: 7300 [2024-11-08 17:11:16,692 INFO L226 Difference]: Without dead ends: 7176 [2024-11-08 17:11:16,695 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 17:11:16,695 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 17:11:16,695 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 17:11:16,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7176 states. [2024-11-08 17:11:16,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7176 to 7174. [2024-11-08 17:11:16,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7174 states, 7172 states have (on average 1.4113218070273286) internal successors, (10122), 7173 states have internal predecessors, (10122), 0 states have call successors, (0), 0 states 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 17:11:16,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7174 states to 7174 states and 10122 transitions. [2024-11-08 17:11:16,807 INFO L78 Accepts]: Start accepts. Automaton has 7174 states and 10122 transitions. Word has length 94 [2024-11-08 17:11:16,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:16,807 INFO L471 AbstractCegarLoop]: Abstraction has 7174 states and 10122 transitions. [2024-11-08 17:11:16,807 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 17:11:16,807 INFO L276 IsEmpty]: Start isEmpty. Operand 7174 states and 10122 transitions. [2024-11-08 17:11:16,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 17:11:16,808 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:16,809 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 17:11:16,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 17:11:16,809 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:16,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:16,809 INFO L85 PathProgramCache]: Analyzing trace with hash 593433492, now seen corresponding path program 1 times [2024-11-08 17:11:16,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:16,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549288752] [2024-11-08 17:11:16,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:16,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:11:16,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:16,902 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 17:11:16,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:11:16,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549288752] [2024-11-08 17:11:16,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549288752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:16,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:16,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:11:16,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061557428] [2024-11-08 17:11:16,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:16,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:11:16,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:16,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:11:16,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:11:16,904 INFO L87 Difference]: Start difference. First operand 7174 states and 10122 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 17:11:16,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:16,957 INFO L93 Difference]: Finished difference Result 7836 states and 11162 transitions. [2024-11-08 17:11:16,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:11:16,958 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 17:11:16,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:16,973 INFO L225 Difference]: With dead ends: 7836 [2024-11-08 17:11:16,973 INFO L226 Difference]: Without dead ends: 7493 [2024-11-08 17:11:16,978 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 17:11:16,978 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 17:11:16,979 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 17:11:16,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7493 states. [2024-11-08 17:11:17,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7493 to 7491. [2024-11-08 17:11:17,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7491 states, 7489 states have (on average 1.4172786753905728) internal successors, (10614), 7490 states have internal predecessors, (10614), 0 states have call successors, (0), 0 states 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 17:11:17,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7491 states to 7491 states and 10614 transitions. [2024-11-08 17:11:17,086 INFO L78 Accepts]: Start accepts. Automaton has 7491 states and 10614 transitions. Word has length 94 [2024-11-08 17:11:17,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:17,086 INFO L471 AbstractCegarLoop]: Abstraction has 7491 states and 10614 transitions. [2024-11-08 17:11:17,086 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 17:11:17,087 INFO L276 IsEmpty]: Start isEmpty. Operand 7491 states and 10614 transitions. [2024-11-08 17:11:17,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 17:11:17,088 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:17,088 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 17:11:17,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 17:11:17,088 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:17,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:17,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1596549740, now seen corresponding path program 1 times [2024-11-08 17:11:17,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:17,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444556003] [2024-11-08 17:11:17,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:17,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:11:17,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:17,175 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 17:11:17,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:11:17,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444556003] [2024-11-08 17:11:17,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444556003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:17,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:17,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:11:17,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041585088] [2024-11-08 17:11:17,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:17,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:11:17,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:17,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:11:17,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:11:17,178 INFO L87 Difference]: Start difference. First operand 7491 states and 10614 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 17:11:17,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:17,230 INFO L93 Difference]: Finished difference Result 8763 states and 12596 transitions. [2024-11-08 17:11:17,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:11:17,232 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 17:11:17,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:17,245 INFO L225 Difference]: With dead ends: 8763 [2024-11-08 17:11:17,246 INFO L226 Difference]: Without dead ends: 8103 [2024-11-08 17:11:17,249 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 17:11:17,250 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 17:11:17,250 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 17:11:17,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8103 states. [2024-11-08 17:11:17,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8103 to 8101. [2024-11-08 17:11:17,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8101 states, 8099 states have (on average 1.4261019878997407) internal successors, (11550), 8100 states have internal predecessors, (11550), 0 states have call successors, (0), 0 states 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 17:11:17,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8101 states to 8101 states and 11550 transitions. [2024-11-08 17:11:17,367 INFO L78 Accepts]: Start accepts. Automaton has 8101 states and 11550 transitions. Word has length 94 [2024-11-08 17:11:17,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:17,367 INFO L471 AbstractCegarLoop]: Abstraction has 8101 states and 11550 transitions. [2024-11-08 17:11:17,368 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 17:11:17,368 INFO L276 IsEmpty]: Start isEmpty. Operand 8101 states and 11550 transitions. [2024-11-08 17:11:17,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 17:11:17,369 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:17,369 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 17:11:17,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 17:11:17,369 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:17,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:17,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1332693356, now seen corresponding path program 1 times [2024-11-08 17:11:17,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:17,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321840955] [2024-11-08 17:11:17,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:17,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:11:17,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:17,451 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 17:11:17,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:11:17,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321840955] [2024-11-08 17:11:17,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321840955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:17,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:17,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:11:17,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974156586] [2024-11-08 17:11:17,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:17,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:11:17,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:17,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:11:17,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:11:17,453 INFO L87 Difference]: Start difference. First operand 8101 states and 11550 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 17:11:17,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:17,520 INFO L93 Difference]: Finished difference Result 10545 states and 15320 transitions. [2024-11-08 17:11:17,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:11:17,521 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 17:11:17,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:17,535 INFO L225 Difference]: With dead ends: 10545 [2024-11-08 17:11:17,535 INFO L226 Difference]: Without dead ends: 9275 [2024-11-08 17:11:17,540 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 17:11:17,541 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 17:11:17,542 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 17:11:17,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9275 states. [2024-11-08 17:11:17,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9275 to 9273. [2024-11-08 17:11:17,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9273 states, 9271 states have (on average 1.4373853953187359) internal successors, (13326), 9272 states have internal predecessors, (13326), 0 states have call successors, (0), 0 states 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 17:11:17,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9273 states to 9273 states and 13326 transitions. [2024-11-08 17:11:17,799 INFO L78 Accepts]: Start accepts. Automaton has 9273 states and 13326 transitions. Word has length 94 [2024-11-08 17:11:17,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:17,800 INFO L471 AbstractCegarLoop]: Abstraction has 9273 states and 13326 transitions. [2024-11-08 17:11:17,800 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 17:11:17,800 INFO L276 IsEmpty]: Start isEmpty. Operand 9273 states and 13326 transitions. [2024-11-08 17:11:17,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 17:11:17,801 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:17,801 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 17:11:17,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 17:11:17,802 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:17,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:17,803 INFO L85 PathProgramCache]: Analyzing trace with hash -94431340, now seen corresponding path program 1 times [2024-11-08 17:11:17,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:17,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234055777] [2024-11-08 17:11:17,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:17,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:11:17,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:17,911 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 17:11:17,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:11:17,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234055777] [2024-11-08 17:11:17,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234055777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:17,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:17,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:11:17,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788641581] [2024-11-08 17:11:17,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:17,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:11:17,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:17,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:11:17,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:11:17,914 INFO L87 Difference]: Start difference. First operand 9273 states and 13326 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 17:11:18,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:18,063 INFO L93 Difference]: Finished difference Result 13965 states and 20480 transitions. [2024-11-08 17:11:18,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:11:18,064 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 17:11:18,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:18,085 INFO L225 Difference]: With dead ends: 13965 [2024-11-08 17:11:18,085 INFO L226 Difference]: Without dead ends: 11523 [2024-11-08 17:11:18,093 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 17:11:18,094 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 17:11:18,094 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 17:11:18,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11523 states. [2024-11-08 17:11:18,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11523 to 11521. [2024-11-08 17:11:18,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11521 states, 11519 states have (on average 1.4485632433370952) internal successors, (16686), 11520 states have internal predecessors, (16686), 0 states have call successors, (0), 0 states 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 17:11:18,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11521 states to 11521 states and 16686 transitions. [2024-11-08 17:11:18,321 INFO L78 Accepts]: Start accepts. Automaton has 11521 states and 16686 transitions. Word has length 94 [2024-11-08 17:11:18,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:18,321 INFO L471 AbstractCegarLoop]: Abstraction has 11521 states and 16686 transitions. [2024-11-08 17:11:18,321 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 17:11:18,322 INFO L276 IsEmpty]: Start isEmpty. Operand 11521 states and 16686 transitions. [2024-11-08 17:11:18,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 17:11:18,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:18,323 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 17:11:18,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 17:11:18,323 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:18,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:18,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1985067156, now seen corresponding path program 1 times [2024-11-08 17:11:18,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:18,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135902591] [2024-11-08 17:11:18,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:18,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:11:18,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:18,406 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 17:11:18,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:11:18,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135902591] [2024-11-08 17:11:18,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135902591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:18,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:18,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:11:18,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049338957] [2024-11-08 17:11:18,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:18,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:11:18,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:18,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:11:18,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:11:18,408 INFO L87 Difference]: Start difference. First operand 11521 states and 16686 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 17:11:18,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:18,579 INFO L93 Difference]: Finished difference Result 20517 states and 30224 transitions. [2024-11-08 17:11:18,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:11:18,579 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 17:11:18,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:18,609 INFO L225 Difference]: With dead ends: 20517 [2024-11-08 17:11:18,610 INFO L226 Difference]: Without dead ends: 15827 [2024-11-08 17:11:18,621 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 17:11:18,621 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 17:11:18,622 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 17:11:18,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15827 states. [2024-11-08 17:11:18,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15827 to 15825. [2024-11-08 17:11:18,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15825 states, 15823 states have (on average 1.4549706123996713) internal successors, (23022), 15824 states have internal predecessors, (23022), 0 states have call successors, (0), 0 states 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 17:11:19,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15825 states to 15825 states and 23022 transitions. [2024-11-08 17:11:19,040 INFO L78 Accepts]: Start accepts. Automaton has 15825 states and 23022 transitions. Word has length 94 [2024-11-08 17:11:19,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:19,040 INFO L471 AbstractCegarLoop]: Abstraction has 15825 states and 23022 transitions. [2024-11-08 17:11:19,040 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 17:11:19,040 INFO L276 IsEmpty]: Start isEmpty. Operand 15825 states and 23022 transitions. [2024-11-08 17:11:19,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 17:11:19,041 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:19,041 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 17:11:19,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 17:11:19,042 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:19,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:19,042 INFO L85 PathProgramCache]: Analyzing trace with hash -528967276, now seen corresponding path program 1 times [2024-11-08 17:11:19,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:19,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014264899] [2024-11-08 17:11:19,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:19,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:11:19,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:19,136 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 17:11:19,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:11:19,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014264899] [2024-11-08 17:11:19,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014264899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:19,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:19,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:11:19,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411427391] [2024-11-08 17:11:19,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:19,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:11:19,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:19,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:11:19,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:11:19,140 INFO L87 Difference]: Start difference. First operand 15825 states and 23022 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 17:11:19,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:19,443 INFO L93 Difference]: Finished difference Result 33045 states and 48560 transitions. [2024-11-08 17:11:19,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:11:19,444 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 17:11:19,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:19,492 INFO L225 Difference]: With dead ends: 33045 [2024-11-08 17:11:19,493 INFO L226 Difference]: Without dead ends: 24051 [2024-11-08 17:11:19,510 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 17:11:19,511 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 17:11:19,511 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 17:11:19,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24051 states. [2024-11-08 17:11:19,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24051 to 24049. [2024-11-08 17:11:19,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24049 states, 24047 states have (on average 1.4524057054934087) internal successors, (34926), 24048 states have internal predecessors, (34926), 0 states have call successors, (0), 0 states 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 17:11:20,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24049 states to 24049 states and 34926 transitions. [2024-11-08 17:11:20,189 INFO L78 Accepts]: Start accepts. Automaton has 24049 states and 34926 transitions. Word has length 94 [2024-11-08 17:11:20,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:20,190 INFO L471 AbstractCegarLoop]: Abstraction has 24049 states and 34926 transitions. [2024-11-08 17:11:20,190 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 17:11:20,190 INFO L276 IsEmpty]: Start isEmpty. Operand 24049 states and 34926 transitions. [2024-11-08 17:11:20,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 17:11:20,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:20,191 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 17:11:20,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 17:11:20,192 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:20,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:20,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1759464300, now seen corresponding path program 1 times [2024-11-08 17:11:20,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:20,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58432926] [2024-11-08 17:11:20,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:20,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:11:20,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:20,273 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 17:11:20,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:11:20,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58432926] [2024-11-08 17:11:20,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58432926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:20,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:20,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:11:20,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208130230] [2024-11-08 17:11:20,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:20,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:11:20,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:20,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:11:20,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:11:20,276 INFO L87 Difference]: Start difference. First operand 24049 states and 34926 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 17:11:20,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:20,834 INFO L93 Difference]: Finished difference Result 56949 states and 82928 transitions. [2024-11-08 17:11:20,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:11:20,834 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 17:11:20,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:20,921 INFO L225 Difference]: With dead ends: 56949 [2024-11-08 17:11:20,921 INFO L226 Difference]: Without dead ends: 39731 [2024-11-08 17:11:20,958 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 17:11:20,959 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 17:11:20,959 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 17:11:20,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39731 states. [2024-11-08 17:11:21,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39731 to 39729. [2024-11-08 17:11:21,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39729 states, 39727 states have (on average 1.4397764744380397) internal successors, (57198), 39728 states have internal predecessors, (57198), 0 states have call successors, (0), 0 states 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 17:11:22,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39729 states to 39729 states and 57198 transitions. [2024-11-08 17:11:22,211 INFO L78 Accepts]: Start accepts. Automaton has 39729 states and 57198 transitions. Word has length 94 [2024-11-08 17:11:22,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:22,211 INFO L471 AbstractCegarLoop]: Abstraction has 39729 states and 57198 transitions. [2024-11-08 17:11:22,212 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 17:11:22,212 INFO L276 IsEmpty]: Start isEmpty. Operand 39729 states and 57198 transitions. [2024-11-08 17:11:22,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 17:11:22,221 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:22,221 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 17:11:22,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 17:11:22,221 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:22,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:22,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1733023753, now seen corresponding path program 1 times [2024-11-08 17:11:22,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:22,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680834140] [2024-11-08 17:11:22,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:22,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:11:22,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:22,573 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 17:11:22,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:11:22,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680834140] [2024-11-08 17:11:22,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680834140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:22,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:22,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 17:11:22,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815469543] [2024-11-08 17:11:22,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:22,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:11:22,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:22,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:11:22,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:11:22,576 INFO L87 Difference]: Start difference. First operand 39729 states and 57198 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 17:11:27,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:27,197 INFO L93 Difference]: Finished difference Result 299715 states and 433271 transitions. [2024-11-08 17:11:27,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 17:11:27,197 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 17:11:27,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:27,913 INFO L225 Difference]: With dead ends: 299715 [2024-11-08 17:11:27,913 INFO L226 Difference]: Without dead ends: 276673 [2024-11-08 17:11:27,991 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 17:11:27,992 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, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:11:27,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11707 Valid, 5248 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:11:28,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276673 states. [2024-11-08 17:11:31,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276673 to 67761. [2024-11-08 17:11:31,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67761 states, 67759 states have (on average 1.437299842087398) internal successors, (97390), 67760 states have internal predecessors, (97390), 0 states have call successors, (0), 0 states 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 17:11:31,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67761 states to 67761 states and 97390 transitions. [2024-11-08 17:11:31,795 INFO L78 Accepts]: Start accepts. Automaton has 67761 states and 97390 transitions. Word has length 119 [2024-11-08 17:11:31,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:31,795 INFO L471 AbstractCegarLoop]: Abstraction has 67761 states and 97390 transitions. [2024-11-08 17:11:31,795 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 17:11:31,796 INFO L276 IsEmpty]: Start isEmpty. Operand 67761 states and 97390 transitions. [2024-11-08 17:11:31,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 17:11:31,809 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:31,809 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 17:11:31,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 17:11:31,810 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:31,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:31,811 INFO L85 PathProgramCache]: Analyzing trace with hash 579963127, now seen corresponding path program 1 times [2024-11-08 17:11:31,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:31,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460579059] [2024-11-08 17:11:31,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:31,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:11:32,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:32,291 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 17:11:32,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:11:32,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460579059] [2024-11-08 17:11:32,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460579059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:32,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:32,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 17:11:32,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799519964] [2024-11-08 17:11:32,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:32,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:11:32,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:32,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:11:32,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:11:32,293 INFO L87 Difference]: Start difference. First operand 67761 states and 97390 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 17:11:38,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:38,046 INFO L93 Difference]: Finished difference Result 332611 states and 480631 transitions. [2024-11-08 17:11:38,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 17:11:38,047 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 17:11:38,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:38,623 INFO L225 Difference]: With dead ends: 332611 [2024-11-08 17:11:38,623 INFO L226 Difference]: Without dead ends: 299713 [2024-11-08 17:11:38,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-08 17:11:38,701 INFO L432 NwaCegarLoop]: 1700 mSDtfsCounter, 11707 mSDsluCounter, 3528 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11707 SdHoareTripleChecker+Valid, 5228 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:11:38,701 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11707 Valid, 5228 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:11:38,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299713 states. [2024-11-08 17:11:43,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299713 to 112177. [2024-11-08 17:11:43,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112177 states, 112175 states have (on average 1.4353108981502116) internal successors, (161006), 112176 states have internal predecessors, (161006), 0 states have call successors, (0), 0 states 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 17:11:43,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112177 states to 112177 states and 161006 transitions. [2024-11-08 17:11:43,913 INFO L78 Accepts]: Start accepts. Automaton has 112177 states and 161006 transitions. Word has length 119 [2024-11-08 17:11:43,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:43,914 INFO L471 AbstractCegarLoop]: Abstraction has 112177 states and 161006 transitions. [2024-11-08 17:11:43,914 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 17:11:43,914 INFO L276 IsEmpty]: Start isEmpty. Operand 112177 states and 161006 transitions. [2024-11-08 17:11:43,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 17:11:43,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:43,943 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 17:11:43,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 17:11:43,944 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:43,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:43,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1610020105, now seen corresponding path program 1 times [2024-11-08 17:11:43,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:43,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741008284] [2024-11-08 17:11:43,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:43,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:11:44,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:44,273 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 17:11:44,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:11:44,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741008284] [2024-11-08 17:11:44,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741008284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:44,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:44,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 17:11:44,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892438835] [2024-11-08 17:11:44,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:44,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:11:44,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:44,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:11:44,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:11:44,277 INFO L87 Difference]: Start difference. First operand 112177 states and 161006 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 17:11:51,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:51,658 INFO L93 Difference]: Finished difference Result 365507 states and 527863 transitions. [2024-11-08 17:11:51,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 17:11:51,659 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 17:11:51,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:52,271 INFO L225 Difference]: With dead ends: 365507 [2024-11-08 17:11:52,271 INFO L226 Difference]: Without dead ends: 332609 [2024-11-08 17:11:52,388 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 17:11:52,389 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 17:11:52,389 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 17:11:52,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332609 states. [2024-11-08 17:11:58,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332609 to 145073. [2024-11-08 17:11:58,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145073 states, 145071 states have (on average 1.435421276478414) internal successors, (208238), 145072 states have internal predecessors, (208238), 0 states have call successors, (0), 0 states 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 17:11:59,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145073 states to 145073 states and 208238 transitions. [2024-11-08 17:11:59,013 INFO L78 Accepts]: Start accepts. Automaton has 145073 states and 208238 transitions. Word has length 119 [2024-11-08 17:11:59,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:59,013 INFO L471 AbstractCegarLoop]: Abstraction has 145073 states and 208238 transitions. [2024-11-08 17:11:59,013 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 17:11:59,013 INFO L276 IsEmpty]: Start isEmpty. Operand 145073 states and 208238 transitions. [2024-11-08 17:11:59,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 17:11:59,025 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:59,026 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 17:11:59,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 17:11:59,026 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:59,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:59,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1346163721, now seen corresponding path program 1 times [2024-11-08 17:11:59,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:59,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438929094] [2024-11-08 17:11:59,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:59,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:11:59,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:59,275 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 17:11:59,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:11:59,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438929094] [2024-11-08 17:11:59,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438929094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:59,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:59,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 17:11:59,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655381742] [2024-11-08 17:11:59,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:59,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:11:59,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:59,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:11:59,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:11:59,278 INFO L87 Difference]: Start difference. First operand 145073 states and 208238 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)