./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label04.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label04.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 6594a781eb15fb7bc8687ba7c7eec87d2c3a5aadf0390114ddcc686f9488f6df --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 21:36:47,780 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 21:36:47,873 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 21:36:47,877 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 21:36:47,879 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 21:36:47,912 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 21:36:47,914 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 21:36:47,914 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 21:36:47,915 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 21:36:47,916 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 21:36:47,917 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 21:36:47,917 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 21:36:47,918 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 21:36:47,920 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 21:36:47,920 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 21:36:47,920 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 21:36:47,921 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 21:36:47,921 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 21:36:47,921 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 21:36:47,921 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 21:36:47,922 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 21:36:47,925 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 21:36:47,925 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 21:36:47,926 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 21:36:47,926 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 21:36:47,926 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 21:36:47,926 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 21:36:47,927 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 21:36:47,927 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 21:36:47,927 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 21:36:47,927 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 21:36:47,928 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 21:36:47,928 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 21:36:47,928 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 21:36:47,928 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 21:36:47,928 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 21:36:47,929 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 21:36:47,929 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 21:36:47,931 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 21:36:47,931 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 21:36:47,931 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 21:36:47,931 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 21:36:47,932 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6594a781eb15fb7bc8687ba7c7eec87d2c3a5aadf0390114ddcc686f9488f6df [2024-10-12 21:36:48,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 21:36:48,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 21:36:48,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 21:36:48,205 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 21:36:48,206 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 21:36:48,207 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label04.c [2024-10-12 21:36:49,615 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 21:36:50,072 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 21:36:50,074 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label04.c [2024-10-12 21:36:50,112 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e6f72b7e/b040f0f4f66c4af4b520b6c5e728ad81/FLAG7f557a8c5 [2024-10-12 21:36:50,129 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e6f72b7e/b040f0f4f66c4af4b520b6c5e728ad81 [2024-10-12 21:36:50,131 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 21:36:50,133 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 21:36:50,138 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 21:36:50,138 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 21:36:50,143 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 21:36:50,144 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 09:36:50" (1/1) ... [2024-10-12 21:36:50,145 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@570dd50a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:36:50, skipping insertion in model container [2024-10-12 21:36:50,145 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 09:36:50" (1/1) ... [2024-10-12 21:36:50,251 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 21:36:50,653 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label04.c[20454,20467] [2024-10-12 21:36:50,750 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label04.c[27515,27528] [2024-10-12 21:36:51,362 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 21:36:51,374 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 21:36:51,408 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label04.c[20454,20467] [2024-10-12 21:36:51,419 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label04.c[27515,27528] [2024-10-12 21:36:51,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 21:36:51,837 INFO L204 MainTranslator]: Completed translation [2024-10-12 21:36:51,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:36:51 WrapperNode [2024-10-12 21:36:51,838 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 21:36:51,839 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 21:36:51,839 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 21:36:51,839 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 21:36:51,845 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:36:51" (1/1) ... [2024-10-12 21:36:51,914 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:36:51" (1/1) ... [2024-10-12 21:36:52,181 INFO L138 Inliner]: procedures = 39, calls = 24, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 5219 [2024-10-12 21:36:52,182 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 21:36:52,182 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 21:36:52,182 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 21:36:52,183 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 21:36:52,193 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:36:51" (1/1) ... [2024-10-12 21:36:52,193 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:36:51" (1/1) ... [2024-10-12 21:36:52,234 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:36:51" (1/1) ... [2024-10-12 21:36:52,461 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]. [2024-10-12 21:36:52,461 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:36:51" (1/1) ... [2024-10-12 21:36:52,461 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:36:51" (1/1) ... [2024-10-12 21:36:52,620 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:36:51" (1/1) ... [2024-10-12 21:36:52,658 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:36:51" (1/1) ... [2024-10-12 21:36:52,699 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:36:51" (1/1) ... [2024-10-12 21:36:52,720 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:36:51" (1/1) ... [2024-10-12 21:36:52,861 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 21:36:52,863 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 21:36:52,864 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 21:36:52,864 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 21:36:52,865 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:36:51" (1/1) ... [2024-10-12 21:36:52,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 21:36:52,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 21:36:52,911 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) [2024-10-12 21:36:52,917 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 [2024-10-12 21:36:52,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 21:36:52,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 21:36:52,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 21:36:52,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 21:36:53,171 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 21:36:53,174 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 21:36:57,421 INFO L? ?]: Removed 754 outVars from TransFormulas that were not future-live. [2024-10-12 21:36:57,422 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 21:36:57,486 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 21:36:57,488 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-12 21:36:57,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:36:57 BoogieIcfgContainer [2024-10-12 21:36:57,489 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 21:36:57,491 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 21:36:57,492 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 21:36:57,495 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 21:36:57,495 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 09:36:50" (1/3) ... [2024-10-12 21:36:57,496 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b3558cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 09:36:57, skipping insertion in model container [2024-10-12 21:36:57,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:36:51" (2/3) ... [2024-10-12 21:36:57,498 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b3558cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 09:36:57, skipping insertion in model container [2024-10-12 21:36:57,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:36:57" (3/3) ... [2024-10-12 21:36:57,500 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label04.c [2024-10-12 21:36:57,518 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 21:36:57,518 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-12 21:36:57,609 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 21:36:57,615 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;@34a5869b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 21:36:57,615 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-12 21:36:57,623 INFO L276 IsEmpty]: Start isEmpty. Operand has 867 states, 864 states have (on average 1.9710648148148149) internal successors, (1703), 866 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:36:57,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-12 21:36:57,631 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:36:57,632 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] [2024-10-12 21:36:57,632 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:36:57,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:36:57,637 INFO L85 PathProgramCache]: Analyzing trace with hash 214023248, now seen corresponding path program 1 times [2024-10-12 21:36:57,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:36:57,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652442431] [2024-10-12 21:36:57,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:36:57,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:36:57,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:36:57,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:36:57,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:36:57,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652442431] [2024-10-12 21:36:57,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652442431] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:36:57,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:36:57,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 21:36:57,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20722646] [2024-10-12 21:36:57,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:36:57,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 21:36:57,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:36:57,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 21:36:57,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 21:36:57,988 INFO L87 Difference]: Start difference. First operand has 867 states, 864 states have (on average 1.9710648148148149) internal successors, (1703), 866 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:36:58,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:36:58,089 INFO L93 Difference]: Finished difference Result 1679 states and 3299 transitions. [2024-10-12 21:36:58,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 21:36:58,098 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2024-10-12 21:36:58,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:36:58,121 INFO L225 Difference]: With dead ends: 1679 [2024-10-12 21:36:58,122 INFO L226 Difference]: Without dead ends: 863 [2024-10-12 21:36:58,130 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 21:36:58,135 INFO L432 NwaCegarLoop]: 1631 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1631 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 21:36:58,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1631 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 21:36:58,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2024-10-12 21:36:58,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 863. [2024-10-12 21:36:58,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 861 states have (on average 1.8954703832752613) internal successors, (1632), 862 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:36:58,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1632 transitions. [2024-10-12 21:36:58,231 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1632 transitions. Word has length 25 [2024-10-12 21:36:58,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:36:58,231 INFO L471 AbstractCegarLoop]: Abstraction has 863 states and 1632 transitions. [2024-10-12 21:36:58,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:36:58,232 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1632 transitions. [2024-10-12 21:36:58,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-12 21:36:58,235 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:36:58,235 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] [2024-10-12 21:36:58,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 21:36:58,236 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:36:58,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:36:58,236 INFO L85 PathProgramCache]: Analyzing trace with hash 636725074, now seen corresponding path program 1 times [2024-10-12 21:36:58,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:36:58,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426507251] [2024-10-12 21:36:58,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:36:58,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:36:58,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:36:58,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:36:58,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:36:58,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426507251] [2024-10-12 21:36:58,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426507251] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:36:58,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:36:58,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 21:36:58,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690958172] [2024-10-12 21:36:58,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:36:58,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 21:36:58,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:36:58,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 21:36:58,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 21:36:58,477 INFO L87 Difference]: Start difference. First operand 863 states and 1632 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:36:58,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:36:58,623 INFO L93 Difference]: Finished difference Result 921 states and 1724 transitions. [2024-10-12 21:36:58,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 21:36:58,624 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2024-10-12 21:36:58,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:36:58,627 INFO L225 Difference]: With dead ends: 921 [2024-10-12 21:36:58,627 INFO L226 Difference]: Without dead ends: 863 [2024-10-12 21:36:58,628 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 21:36:58,630 INFO L432 NwaCegarLoop]: 1629 mSDtfsCounter, 0 mSDsluCounter, 3204 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4833 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 21:36:58,630 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4833 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 21:36:58,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2024-10-12 21:36:58,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 863. [2024-10-12 21:36:58,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 861 states have (on average 1.8373983739837398) internal successors, (1582), 862 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:36:58,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1582 transitions. [2024-10-12 21:36:58,651 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1582 transitions. Word has length 25 [2024-10-12 21:36:58,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:36:58,651 INFO L471 AbstractCegarLoop]: Abstraction has 863 states and 1582 transitions. [2024-10-12 21:36:58,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:36:58,651 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1582 transitions. [2024-10-12 21:36:58,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-12 21:36:58,655 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:36:58,655 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] [2024-10-12 21:36:58,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 21:36:58,655 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:36:58,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:36:58,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1705244621, now seen corresponding path program 1 times [2024-10-12 21:36:58,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:36:58,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445105178] [2024-10-12 21:36:58,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:36:58,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:36:58,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:36:58,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:36:58,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:36:58,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445105178] [2024-10-12 21:36:58,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445105178] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:36:58,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:36:58,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 21:36:58,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654657623] [2024-10-12 21:36:58,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:36:58,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 21:36:58,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:36:58,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 21:36:58,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 21:36:58,803 INFO L87 Difference]: Start difference. First operand 863 states and 1582 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:02,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:37:02,001 INFO L93 Difference]: Finished difference Result 2367 states and 4455 transitions. [2024-10-12 21:37:02,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 21:37:02,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-10-12 21:37:02,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:37:02,008 INFO L225 Difference]: With dead ends: 2367 [2024-10-12 21:37:02,008 INFO L226 Difference]: Without dead ends: 1614 [2024-10-12 21:37:02,010 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 [2024-10-12 21:37:02,010 INFO L432 NwaCegarLoop]: 608 mSDtfsCounter, 884 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2264 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 2916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 2264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-10-12 21:37:02,011 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [884 Valid, 615 Invalid, 2916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 2264 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-10-12 21:37:02,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1614 states. [2024-10-12 21:37:02,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1614 to 1614. [2024-10-12 21:37:02,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1614 states, 1612 states have (on average 1.5887096774193548) internal successors, (2561), 1613 states have internal predecessors, (2561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:02,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1614 states to 1614 states and 2561 transitions. [2024-10-12 21:37:02,037 INFO L78 Accepts]: Start accepts. Automaton has 1614 states and 2561 transitions. Word has length 60 [2024-10-12 21:37:02,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:37:02,038 INFO L471 AbstractCegarLoop]: Abstraction has 1614 states and 2561 transitions. [2024-10-12 21:37:02,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:02,038 INFO L276 IsEmpty]: Start isEmpty. Operand 1614 states and 2561 transitions. [2024-10-12 21:37:02,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-12 21:37:02,040 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:37:02,040 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] [2024-10-12 21:37:02,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 21:37:02,041 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:37:02,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:37:02,041 INFO L85 PathProgramCache]: Analyzing trace with hash 79829561, now seen corresponding path program 1 times [2024-10-12 21:37:02,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:37:02,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269553084] [2024-10-12 21:37:02,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:37:02,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:37:02,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:37:02,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:37:02,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:37:02,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269553084] [2024-10-12 21:37:02,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269553084] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:37:02,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:37:02,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-12 21:37:02,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113484431] [2024-10-12 21:37:02,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:37:02,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 21:37:02,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:37:02,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 21:37:02,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-12 21:37:02,337 INFO L87 Difference]: Start difference. First operand 1614 states and 2561 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:02,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:37:02,772 INFO L93 Difference]: Finished difference Result 2384 states and 3807 transitions. [2024-10-12 21:37:02,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-12 21:37:02,773 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-10-12 21:37:02,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:37:02,782 INFO L225 Difference]: With dead ends: 2384 [2024-10-12 21:37:02,783 INFO L226 Difference]: Without dead ends: 2329 [2024-10-12 21:37:02,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-10-12 21:37:02,786 INFO L432 NwaCegarLoop]: 1573 mSDtfsCounter, 11585 mSDsluCounter, 2680 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11585 SdHoareTripleChecker+Valid, 4253 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 21:37:02,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11585 Valid, 4253 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 21:37:02,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2329 states. [2024-10-12 21:37:02,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2329 to 1667. [2024-10-12 21:37:02,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1667 states, 1665 states have (on average 1.5897897897897897) internal successors, (2647), 1666 states have internal predecessors, (2647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:02,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1667 states to 1667 states and 2647 transitions. [2024-10-12 21:37:02,825 INFO L78 Accepts]: Start accepts. Automaton has 1667 states and 2647 transitions. Word has length 74 [2024-10-12 21:37:02,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:37:02,825 INFO L471 AbstractCegarLoop]: Abstraction has 1667 states and 2647 transitions. [2024-10-12 21:37:02,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:02,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1667 states and 2647 transitions. [2024-10-12 21:37:02,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-12 21:37:02,827 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:37:02,828 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] [2024-10-12 21:37:02,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 21:37:02,828 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:37:02,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:37:02,829 INFO L85 PathProgramCache]: Analyzing trace with hash -716806039, now seen corresponding path program 1 times [2024-10-12 21:37:02,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:37:02,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666999948] [2024-10-12 21:37:02,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:37:02,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:37:02,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:37:03,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:37:03,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:37:03,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666999948] [2024-10-12 21:37:03,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666999948] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:37:03,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:37:03,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 21:37:03,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137096299] [2024-10-12 21:37:03,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:37:03,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 21:37:03,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:37:03,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 21:37:03,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 21:37:03,010 INFO L87 Difference]: Start difference. First operand 1667 states and 2647 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:03,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:37:03,056 INFO L93 Difference]: Finished difference Result 1872 states and 2978 transitions. [2024-10-12 21:37:03,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 21:37:03,057 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-10-12 21:37:03,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:37:03,063 INFO L225 Difference]: With dead ends: 1872 [2024-10-12 21:37:03,063 INFO L226 Difference]: Without dead ends: 1764 [2024-10-12 21:37:03,064 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 [2024-10-12 21:37:03,065 INFO L432 NwaCegarLoop]: 1575 mSDtfsCounter, 1498 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 1656 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 21:37:03,065 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 1656 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 21:37:03,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2024-10-12 21:37:03,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 1760. [2024-10-12 21:37:03,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1760 states, 1758 states have (on average 1.5898748577929465) internal successors, (2795), 1759 states have internal predecessors, (2795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:03,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1760 states to 1760 states and 2795 transitions. [2024-10-12 21:37:03,098 INFO L78 Accepts]: Start accepts. Automaton has 1760 states and 2795 transitions. Word has length 76 [2024-10-12 21:37:03,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:37:03,098 INFO L471 AbstractCegarLoop]: Abstraction has 1760 states and 2795 transitions. [2024-10-12 21:37:03,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:03,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1760 states and 2795 transitions. [2024-10-12 21:37:03,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-12 21:37:03,099 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:37:03,099 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] [2024-10-12 21:37:03,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 21:37:03,100 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:37:03,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:37:03,100 INFO L85 PathProgramCache]: Analyzing trace with hash -714661087, now seen corresponding path program 1 times [2024-10-12 21:37:03,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:37:03,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888802307] [2024-10-12 21:37:03,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:37:03,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:37:03,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:37:03,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:37:03,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:37:03,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888802307] [2024-10-12 21:37:03,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888802307] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:37:03,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:37:03,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-12 21:37:03,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480894947] [2024-10-12 21:37:03,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:37:03,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 21:37:03,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:37:03,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 21:37:03,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-12 21:37:03,540 INFO L87 Difference]: Start difference. First operand 1760 states and 2795 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 9 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:03,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:37:03,935 INFO L93 Difference]: Finished difference Result 1963 states and 3119 transitions. [2024-10-12 21:37:03,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 21:37:03,936 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 9 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-10-12 21:37:03,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:37:03,942 INFO L225 Difference]: With dead ends: 1963 [2024-10-12 21:37:03,942 INFO L226 Difference]: Without dead ends: 1762 [2024-10-12 21:37:03,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-10-12 21:37:03,944 INFO L432 NwaCegarLoop]: 1571 mSDtfsCounter, 7560 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7560 SdHoareTripleChecker+Valid, 2084 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 21:37:03,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7560 Valid, 2084 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 21:37:03,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1762 states. [2024-10-12 21:37:03,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1762 to 1760. [2024-10-12 21:37:03,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1760 states, 1758 states have (on average 1.5887372013651877) internal successors, (2793), 1759 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:03,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1760 states to 1760 states and 2793 transitions. [2024-10-12 21:37:03,979 INFO L78 Accepts]: Start accepts. Automaton has 1760 states and 2793 transitions. Word has length 76 [2024-10-12 21:37:03,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:37:03,980 INFO L471 AbstractCegarLoop]: Abstraction has 1760 states and 2793 transitions. [2024-10-12 21:37:03,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 9 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:03,980 INFO L276 IsEmpty]: Start isEmpty. Operand 1760 states and 2793 transitions. [2024-10-12 21:37:03,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-12 21:37:03,982 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:37:03,982 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:37:03,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 21:37:03,983 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:37:03,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:37:03,983 INFO L85 PathProgramCache]: Analyzing trace with hash -808040563, now seen corresponding path program 1 times [2024-10-12 21:37:03,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:37:03,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111257852] [2024-10-12 21:37:03,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:37:03,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:37:04,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:37:04,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:37:04,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:37:04,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111257852] [2024-10-12 21:37:04,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111257852] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:37:04,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:37:04,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 21:37:04,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935703885] [2024-10-12 21:37:04,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:37:04,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 21:37:04,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:37:04,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 21:37:04,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 21:37:04,176 INFO L87 Difference]: Start difference. First operand 1760 states and 2793 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:04,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:37:04,217 INFO L93 Difference]: Finished difference Result 1766 states and 2800 transitions. [2024-10-12 21:37:04,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 21:37:04,218 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-10-12 21:37:04,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:37:04,224 INFO L225 Difference]: With dead ends: 1766 [2024-10-12 21:37:04,224 INFO L226 Difference]: Without dead ends: 1764 [2024-10-12 21:37:04,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 21:37:04,225 INFO L432 NwaCegarLoop]: 1578 mSDtfsCounter, 0 mSDsluCounter, 3148 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4726 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 21:37:04,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4726 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 21:37:04,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2024-10-12 21:37:04,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 1764. [2024-10-12 21:37:04,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1764 states, 1762 states have (on average 1.58683314415437) internal successors, (2796), 1763 states have internal predecessors, (2796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:04,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1764 states to 1764 states and 2796 transitions. [2024-10-12 21:37:04,254 INFO L78 Accepts]: Start accepts. Automaton has 1764 states and 2796 transitions. Word has length 77 [2024-10-12 21:37:04,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:37:04,254 INFO L471 AbstractCegarLoop]: Abstraction has 1764 states and 2796 transitions. [2024-10-12 21:37:04,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:04,254 INFO L276 IsEmpty]: Start isEmpty. Operand 1764 states and 2796 transitions. [2024-10-12 21:37:04,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-12 21:37:04,255 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:37:04,255 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] [2024-10-12 21:37:04,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 21:37:04,256 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:37:04,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:37:04,256 INFO L85 PathProgramCache]: Analyzing trace with hash 58143169, now seen corresponding path program 1 times [2024-10-12 21:37:04,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:37:04,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025870895] [2024-10-12 21:37:04,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:37:04,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:37:04,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:37:04,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:37:04,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:37:04,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025870895] [2024-10-12 21:37:04,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025870895] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:37:04,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:37:04,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 21:37:04,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626048085] [2024-10-12 21:37:04,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:37:04,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 21:37:04,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:37:04,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 21:37:04,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 21:37:04,320 INFO L87 Difference]: Start difference. First operand 1764 states and 2796 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:04,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:37:04,359 INFO L93 Difference]: Finished difference Result 2158 states and 3416 transitions. [2024-10-12 21:37:04,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 21:37:04,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-10-12 21:37:04,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:37:04,367 INFO L225 Difference]: With dead ends: 2158 [2024-10-12 21:37:04,367 INFO L226 Difference]: Without dead ends: 1953 [2024-10-12 21:37:04,368 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 [2024-10-12 21:37:04,368 INFO L432 NwaCegarLoop]: 1644 mSDtfsCounter, 1515 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 1737 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 [2024-10-12 21:37:04,369 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 1737 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 21:37:04,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1953 states. [2024-10-12 21:37:04,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1953 to 1951. [2024-10-12 21:37:04,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1951 states, 1949 states have (on average 1.5838891739353516) internal successors, (3087), 1950 states have internal predecessors, (3087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:04,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1951 states to 1951 states and 3087 transitions. [2024-10-12 21:37:04,412 INFO L78 Accepts]: Start accepts. Automaton has 1951 states and 3087 transitions. Word has length 78 [2024-10-12 21:37:04,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:37:04,412 INFO L471 AbstractCegarLoop]: Abstraction has 1951 states and 3087 transitions. [2024-10-12 21:37:04,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:04,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1951 states and 3087 transitions. [2024-10-12 21:37:04,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-12 21:37:04,413 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:37:04,413 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] [2024-10-12 21:37:04,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 21:37:04,414 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:37:04,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:37:04,415 INFO L85 PathProgramCache]: Analyzing trace with hash -352243519, now seen corresponding path program 1 times [2024-10-12 21:37:04,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:37:04,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647773820] [2024-10-12 21:37:04,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:37:04,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:37:04,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:37:04,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:37:04,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:37:04,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647773820] [2024-10-12 21:37:04,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647773820] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:37:04,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:37:04,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 21:37:04,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868180673] [2024-10-12 21:37:04,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:37:04,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 21:37:04,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:37:04,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 21:37:04,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 21:37:04,484 INFO L87 Difference]: Start difference. First operand 1951 states and 3087 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:04,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:37:04,527 INFO L93 Difference]: Finished difference Result 2703 states and 4261 transitions. [2024-10-12 21:37:04,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 21:37:04,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-10-12 21:37:04,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:37:04,536 INFO L225 Difference]: With dead ends: 2703 [2024-10-12 21:37:04,537 INFO L226 Difference]: Without dead ends: 2311 [2024-10-12 21:37:04,538 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 [2024-10-12 21:37:04,540 INFO L432 NwaCegarLoop]: 1642 mSDtfsCounter, 1513 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1513 SdHoareTripleChecker+Valid, 1739 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 [2024-10-12 21:37:04,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1513 Valid, 1739 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 21:37:04,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2311 states. [2024-10-12 21:37:04,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2311 to 2309. [2024-10-12 21:37:04,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2309 states, 2307 states have (on average 1.576506285218899) internal successors, (3637), 2308 states have internal predecessors, (3637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:04,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2309 states to 2309 states and 3637 transitions. [2024-10-12 21:37:04,592 INFO L78 Accepts]: Start accepts. Automaton has 2309 states and 3637 transitions. Word has length 78 [2024-10-12 21:37:04,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:37:04,592 INFO L471 AbstractCegarLoop]: Abstraction has 2309 states and 3637 transitions. [2024-10-12 21:37:04,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:04,592 INFO L276 IsEmpty]: Start isEmpty. Operand 2309 states and 3637 transitions. [2024-10-12 21:37:04,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-12 21:37:04,593 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:37:04,593 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] [2024-10-12 21:37:04,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 21:37:04,594 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:37:04,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:37:04,594 INFO L85 PathProgramCache]: Analyzing trace with hash -580882751, now seen corresponding path program 1 times [2024-10-12 21:37:04,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:37:04,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884520090] [2024-10-12 21:37:04,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:37:04,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:37:04,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:37:04,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:37:04,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:37:04,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884520090] [2024-10-12 21:37:04,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884520090] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:37:04,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:37:04,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 21:37:04,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133229370] [2024-10-12 21:37:04,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:37:04,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 21:37:04,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:37:04,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 21:37:04,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 21:37:04,662 INFO L87 Difference]: Start difference. First operand 2309 states and 3637 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:04,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:37:04,713 INFO L93 Difference]: Finished difference Result 3745 states and 5855 transitions. [2024-10-12 21:37:04,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 21:37:04,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-10-12 21:37:04,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:37:04,724 INFO L225 Difference]: With dead ends: 3745 [2024-10-12 21:37:04,724 INFO L226 Difference]: Without dead ends: 2995 [2024-10-12 21:37:04,726 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 [2024-10-12 21:37:04,726 INFO L432 NwaCegarLoop]: 1630 mSDtfsCounter, 1509 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1509 SdHoareTripleChecker+Valid, 1735 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 [2024-10-12 21:37:04,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1509 Valid, 1735 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 21:37:04,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2995 states. [2024-10-12 21:37:04,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2995 to 2993. [2024-10-12 21:37:04,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2993 states, 2991 states have (on average 1.5623537278502173) internal successors, (4673), 2992 states have internal predecessors, (4673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:04,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2993 states to 2993 states and 4673 transitions. [2024-10-12 21:37:04,864 INFO L78 Accepts]: Start accepts. Automaton has 2993 states and 4673 transitions. Word has length 78 [2024-10-12 21:37:04,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:37:04,864 INFO L471 AbstractCegarLoop]: Abstraction has 2993 states and 4673 transitions. [2024-10-12 21:37:04,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:04,865 INFO L276 IsEmpty]: Start isEmpty. Operand 2993 states and 4673 transitions. [2024-10-12 21:37:04,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-12 21:37:04,866 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:37:04,866 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] [2024-10-12 21:37:04,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-12 21:37:04,866 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:37:04,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:37:04,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1206538815, now seen corresponding path program 1 times [2024-10-12 21:37:04,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:37:04,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324188913] [2024-10-12 21:37:04,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:37:04,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:37:04,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:37:04,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:37:04,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:37:04,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324188913] [2024-10-12 21:37:04,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324188913] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:37:04,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:37:04,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 21:37:04,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852687178] [2024-10-12 21:37:04,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:37:04,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 21:37:04,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:37:04,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 21:37:04,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 21:37:04,954 INFO L87 Difference]: Start difference. First operand 2993 states and 4673 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:05,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:37:05,060 INFO L93 Difference]: Finished difference Result 5733 states and 8851 transitions. [2024-10-12 21:37:05,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 21:37:05,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-10-12 21:37:05,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:37:05,077 INFO L225 Difference]: With dead ends: 5733 [2024-10-12 21:37:05,078 INFO L226 Difference]: Without dead ends: 4299 [2024-10-12 21:37:05,082 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 [2024-10-12 21:37:05,083 INFO L432 NwaCegarLoop]: 1628 mSDtfsCounter, 1507 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 1737 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 [2024-10-12 21:37:05,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 1737 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 21:37:05,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4299 states. [2024-10-12 21:37:05,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4299 to 4297. [2024-10-12 21:37:05,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4297 states, 4295 states have (on average 1.5406286379511058) internal successors, (6617), 4296 states have internal predecessors, (6617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:05,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4297 states to 4297 states and 6617 transitions. [2024-10-12 21:37:05,228 INFO L78 Accepts]: Start accepts. Automaton has 4297 states and 6617 transitions. Word has length 78 [2024-10-12 21:37:05,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:37:05,229 INFO L471 AbstractCegarLoop]: Abstraction has 4297 states and 6617 transitions. [2024-10-12 21:37:05,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:05,229 INFO L276 IsEmpty]: Start isEmpty. Operand 4297 states and 6617 transitions. [2024-10-12 21:37:05,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-12 21:37:05,230 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:37:05,230 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] [2024-10-12 21:37:05,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-12 21:37:05,231 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:37:05,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:37:05,231 INFO L85 PathProgramCache]: Analyzing trace with hash -317805375, now seen corresponding path program 1 times [2024-10-12 21:37:05,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:37:05,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707520525] [2024-10-12 21:37:05,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:37:05,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:37:05,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:37:05,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:37:05,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:37:05,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707520525] [2024-10-12 21:37:05,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707520525] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:37:05,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:37:05,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 21:37:05,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698018109] [2024-10-12 21:37:05,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:37:05,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 21:37:05,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:37:05,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 21:37:05,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 21:37:05,307 INFO L87 Difference]: Start difference. First operand 4297 states and 6617 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:05,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:37:05,450 INFO L93 Difference]: Finished difference Result 9517 states and 14459 transitions. [2024-10-12 21:37:05,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 21:37:05,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-10-12 21:37:05,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:37:05,487 INFO L225 Difference]: With dead ends: 9517 [2024-10-12 21:37:05,487 INFO L226 Difference]: Without dead ends: 6779 [2024-10-12 21:37:05,494 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 [2024-10-12 21:37:05,495 INFO L432 NwaCegarLoop]: 1626 mSDtfsCounter, 1505 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 1739 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 [2024-10-12 21:37:05,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 1739 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 21:37:05,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6779 states. [2024-10-12 21:37:05,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6779 to 6777. [2024-10-12 21:37:05,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6777 states, 6775 states have (on average 1.5127675276752768) internal successors, (10249), 6776 states have internal predecessors, (10249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:05,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6777 states to 6777 states and 10249 transitions. [2024-10-12 21:37:05,731 INFO L78 Accepts]: Start accepts. Automaton has 6777 states and 10249 transitions. Word has length 78 [2024-10-12 21:37:05,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:37:05,731 INFO L471 AbstractCegarLoop]: Abstraction has 6777 states and 10249 transitions. [2024-10-12 21:37:05,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:05,732 INFO L276 IsEmpty]: Start isEmpty. Operand 6777 states and 10249 transitions. [2024-10-12 21:37:05,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-12 21:37:05,733 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:37:05,733 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] [2024-10-12 21:37:05,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-12 21:37:05,734 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:37:05,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:37:05,734 INFO L85 PathProgramCache]: Analyzing trace with hash -620826687, now seen corresponding path program 1 times [2024-10-12 21:37:05,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:37:05,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210878409] [2024-10-12 21:37:05,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:37:05,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:37:05,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:37:05,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:37:05,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:37:05,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210878409] [2024-10-12 21:37:05,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210878409] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:37:05,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:37:05,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 21:37:05,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241448509] [2024-10-12 21:37:05,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:37:05,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 21:37:05,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:37:05,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 21:37:05,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 21:37:05,790 INFO L87 Difference]: Start difference. First operand 6777 states and 10249 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:05,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:37:05,965 INFO L93 Difference]: Finished difference Result 16701 states and 24907 transitions. [2024-10-12 21:37:05,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 21:37:05,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-10-12 21:37:05,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:37:05,991 INFO L225 Difference]: With dead ends: 16701 [2024-10-12 21:37:05,991 INFO L226 Difference]: Without dead ends: 11483 [2024-10-12 21:37:06,002 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 [2024-10-12 21:37:06,003 INFO L432 NwaCegarLoop]: 1640 mSDtfsCounter, 1511 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 1741 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 [2024-10-12 21:37:06,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1511 Valid, 1741 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 21:37:06,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11483 states. [2024-10-12 21:37:06,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11483 to 11481. [2024-10-12 21:37:06,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11481 states, 11479 states have (on average 1.481052356477045) internal successors, (17001), 11480 states have internal predecessors, (17001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:06,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11481 states to 11481 states and 17001 transitions. [2024-10-12 21:37:06,344 INFO L78 Accepts]: Start accepts. Automaton has 11481 states and 17001 transitions. Word has length 78 [2024-10-12 21:37:06,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:37:06,345 INFO L471 AbstractCegarLoop]: Abstraction has 11481 states and 17001 transitions. [2024-10-12 21:37:06,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:06,345 INFO L276 IsEmpty]: Start isEmpty. Operand 11481 states and 17001 transitions. [2024-10-12 21:37:06,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-12 21:37:06,346 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:37:06,346 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:37:06,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-12 21:37:06,347 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:37:06,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:37:06,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1245961434, now seen corresponding path program 1 times [2024-10-12 21:37:06,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:37:06,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832255108] [2024-10-12 21:37:06,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:37:06,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:37:06,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:37:06,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:37:06,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:37:06,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832255108] [2024-10-12 21:37:06,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832255108] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:37:06,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:37:06,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 21:37:06,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047605024] [2024-10-12 21:37:06,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:37:06,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 21:37:06,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:37:06,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 21:37:06,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 21:37:06,404 INFO L87 Difference]: Start difference. First operand 11481 states and 17001 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:06,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:37:06,641 INFO L93 Difference]: Finished difference Result 21728 states and 32239 transitions. [2024-10-12 21:37:06,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 21:37:06,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-10-12 21:37:06,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:37:06,677 INFO L225 Difference]: With dead ends: 21728 [2024-10-12 21:37:06,677 INFO L226 Difference]: Without dead ends: 16221 [2024-10-12 21:37:06,690 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 [2024-10-12 21:37:06,691 INFO L432 NwaCegarLoop]: 1649 mSDtfsCounter, 1514 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1738 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 [2024-10-12 21:37:06,691 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1738 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 21:37:06,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16221 states. [2024-10-12 21:37:07,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16221 to 16219. [2024-10-12 21:37:07,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16219 states, 16217 states have (on average 1.4707405808719245) internal successors, (23851), 16218 states have internal predecessors, (23851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:07,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16219 states to 16219 states and 23851 transitions. [2024-10-12 21:37:07,119 INFO L78 Accepts]: Start accepts. Automaton has 16219 states and 23851 transitions. Word has length 80 [2024-10-12 21:37:07,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:37:07,120 INFO L471 AbstractCegarLoop]: Abstraction has 16219 states and 23851 transitions. [2024-10-12 21:37:07,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:07,120 INFO L276 IsEmpty]: Start isEmpty. Operand 16219 states and 23851 transitions. [2024-10-12 21:37:07,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-12 21:37:07,124 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:37:07,124 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:37:07,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-12 21:37:07,125 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:37:07,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:37:07,125 INFO L85 PathProgramCache]: Analyzing trace with hash 622574157, now seen corresponding path program 1 times [2024-10-12 21:37:07,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:37:07,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442753912] [2024-10-12 21:37:07,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:37:07,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:37:07,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:37:07,431 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 21:37:07,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:37:07,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442753912] [2024-10-12 21:37:07,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442753912] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:37:07,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:37:07,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-12 21:37:07,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548849823] [2024-10-12 21:37:07,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:37:07,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 21:37:07,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:37:07,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 21:37:07,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-12 21:37:07,433 INFO L87 Difference]: Start difference. First operand 16219 states and 23851 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:09,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:37:09,609 INFO L93 Difference]: Finished difference Result 121771 states and 177651 transitions. [2024-10-12 21:37:09,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 21:37:09,610 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2024-10-12 21:37:09,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:37:09,909 INFO L225 Difference]: With dead ends: 121771 [2024-10-12 21:37:09,909 INFO L226 Difference]: Without dead ends: 107113 [2024-10-12 21:37:09,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-12 21:37:09,958 INFO L432 NwaCegarLoop]: 1667 mSDtfsCounter, 9884 mSDsluCounter, 2706 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9884 SdHoareTripleChecker+Valid, 4373 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 21:37:09,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9884 Valid, 4373 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 21:37:10,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107113 states. [2024-10-12 21:37:11,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107113 to 30875. [2024-10-12 21:37:11,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30875 states, 30873 states have (on average 1.4587179736339195) internal successors, (45035), 30874 states have internal predecessors, (45035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:11,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30875 states to 30875 states and 45035 transitions. [2024-10-12 21:37:11,987 INFO L78 Accepts]: Start accepts. Automaton has 30875 states and 45035 transitions. Word has length 100 [2024-10-12 21:37:11,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:37:11,988 INFO L471 AbstractCegarLoop]: Abstraction has 30875 states and 45035 transitions. [2024-10-12 21:37:11,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:11,988 INFO L276 IsEmpty]: Start isEmpty. Operand 30875 states and 45035 transitions. [2024-10-12 21:37:11,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-12 21:37:11,992 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:37:11,993 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:37:11,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-12 21:37:11,993 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:37:11,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:37:11,994 INFO L85 PathProgramCache]: Analyzing trace with hash 212187469, now seen corresponding path program 1 times [2024-10-12 21:37:11,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:37:11,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816776844] [2024-10-12 21:37:11,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:37:11,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:37:12,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:37:12,232 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-12 21:37:12,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:37:12,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816776844] [2024-10-12 21:37:12,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816776844] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:37:12,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:37:12,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-12 21:37:12,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111809216] [2024-10-12 21:37:12,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:37:12,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 21:37:12,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:37:12,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 21:37:12,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-12 21:37:12,234 INFO L87 Difference]: Start difference. First operand 30875 states and 45035 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:14,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:37:14,663 INFO L93 Difference]: Finished difference Result 136427 states and 198835 transitions. [2024-10-12 21:37:14,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 21:37:14,664 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2024-10-12 21:37:14,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:37:14,889 INFO L225 Difference]: With dead ends: 136427 [2024-10-12 21:37:14,889 INFO L226 Difference]: Without dead ends: 121769 [2024-10-12 21:37:14,941 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-12 21:37:14,941 INFO L432 NwaCegarLoop]: 1664 mSDtfsCounter, 9924 mSDsluCounter, 2610 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9924 SdHoareTripleChecker+Valid, 4274 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 21:37:14,942 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9924 Valid, 4274 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 21:37:15,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121769 states. [2024-10-12 21:37:17,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121769 to 52891. [2024-10-12 21:37:17,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52891 states, 52889 states have (on average 1.449280568738301) internal successors, (76651), 52890 states have internal predecessors, (76651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:17,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52891 states to 52891 states and 76651 transitions. [2024-10-12 21:37:17,383 INFO L78 Accepts]: Start accepts. Automaton has 52891 states and 76651 transitions. Word has length 100 [2024-10-12 21:37:17,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:37:17,385 INFO L471 AbstractCegarLoop]: Abstraction has 52891 states and 76651 transitions. [2024-10-12 21:37:17,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:17,385 INFO L276 IsEmpty]: Start isEmpty. Operand 52891 states and 76651 transitions. [2024-10-12 21:37:17,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-12 21:37:17,396 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:37:17,396 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:37:17,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-12 21:37:17,397 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:37:17,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:37:17,398 INFO L85 PathProgramCache]: Analyzing trace with hash -16451763, now seen corresponding path program 1 times [2024-10-12 21:37:17,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:37:17,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884811145] [2024-10-12 21:37:17,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:37:17,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:37:17,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:37:17,701 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-12 21:37:17,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:37:17,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884811145] [2024-10-12 21:37:17,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884811145] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:37:17,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:37:17,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-12 21:37:17,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467954671] [2024-10-12 21:37:17,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:37:17,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 21:37:17,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:37:17,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 21:37:17,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-12 21:37:17,704 INFO L87 Difference]: Start difference. First operand 52891 states and 76651 transitions. Second operand has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:20,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:37:20,695 INFO L93 Difference]: Finished difference Result 151083 states and 220019 transitions. [2024-10-12 21:37:20,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 21:37:20,696 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2024-10-12 21:37:20,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:37:20,994 INFO L225 Difference]: With dead ends: 151083 [2024-10-12 21:37:20,994 INFO L226 Difference]: Without dead ends: 136425 [2024-10-12 21:37:21,050 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-12 21:37:21,050 INFO L432 NwaCegarLoop]: 1661 mSDtfsCounter, 9999 mSDsluCounter, 2589 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9999 SdHoareTripleChecker+Valid, 4250 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 21:37:21,051 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9999 Valid, 4250 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 21:37:21,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136425 states. [2024-10-12 21:37:23,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136425 to 67547. [2024-10-12 21:37:23,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67547 states, 67545 states have (on average 1.4484417795543711) internal successors, (97835), 67546 states have internal predecessors, (97835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:23,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67547 states to 67547 states and 97835 transitions. [2024-10-12 21:37:23,395 INFO L78 Accepts]: Start accepts. Automaton has 67547 states and 97835 transitions. Word has length 100 [2024-10-12 21:37:23,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:37:23,396 INFO L471 AbstractCegarLoop]: Abstraction has 67547 states and 97835 transitions. [2024-10-12 21:37:23,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:23,396 INFO L276 IsEmpty]: Start isEmpty. Operand 67547 states and 97835 transitions. [2024-10-12 21:37:23,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-12 21:37:23,402 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:37:23,402 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:37:23,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-12 21:37:23,403 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:37:23,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:37:23,404 INFO L85 PathProgramCache]: Analyzing trace with hash -642107827, now seen corresponding path program 1 times [2024-10-12 21:37:23,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:37:23,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056040049] [2024-10-12 21:37:23,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:37:23,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:37:23,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:37:23,666 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 21:37:23,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:37:23,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056040049] [2024-10-12 21:37:23,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056040049] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:37:23,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:37:23,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-12 21:37:23,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271243701] [2024-10-12 21:37:23,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:37:23,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 21:37:23,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:37:23,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 21:37:23,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-12 21:37:23,669 INFO L87 Difference]: Start difference. First operand 67547 states and 97835 transitions. Second operand has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:26,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:37:26,926 INFO L93 Difference]: Finished difference Result 165739 states and 241203 transitions. [2024-10-12 21:37:26,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 21:37:26,927 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 0 states have call successors, (0), 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 100 [2024-10-12 21:37:26,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:37:27,237 INFO L225 Difference]: With dead ends: 165739 [2024-10-12 21:37:27,237 INFO L226 Difference]: Without dead ends: 151081 [2024-10-12 21:37:27,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-12 21:37:27,282 INFO L432 NwaCegarLoop]: 1658 mSDtfsCounter, 10065 mSDsluCounter, 2556 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10065 SdHoareTripleChecker+Valid, 4214 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 21:37:27,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10065 Valid, 4214 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 21:37:27,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151081 states. [2024-10-12 21:37:30,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151081 to 82203. [2024-10-12 21:37:30,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82203 states, 82201 states have (on average 1.4479020936484959) internal successors, (119019), 82202 states have internal predecessors, (119019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:30,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82203 states to 82203 states and 119019 transitions. [2024-10-12 21:37:30,229 INFO L78 Accepts]: Start accepts. Automaton has 82203 states and 119019 transitions. Word has length 100 [2024-10-12 21:37:30,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:37:30,229 INFO L471 AbstractCegarLoop]: Abstraction has 82203 states and 119019 transitions. [2024-10-12 21:37:30,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:30,229 INFO L276 IsEmpty]: Start isEmpty. Operand 82203 states and 119019 transitions. [2024-10-12 21:37:30,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-12 21:37:30,235 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:37:30,236 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:37:30,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-12 21:37:30,236 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:37:30,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:37:30,236 INFO L85 PathProgramCache]: Analyzing trace with hash 246625613, now seen corresponding path program 1 times [2024-10-12 21:37:30,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:37:30,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742736955] [2024-10-12 21:37:30,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:37:30,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:37:30,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:37:30,446 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-12 21:37:30,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:37:30,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742736955] [2024-10-12 21:37:30,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742736955] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:37:30,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:37:30,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-12 21:37:30,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384563678] [2024-10-12 21:37:30,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:37:30,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 21:37:30,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:37:30,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 21:37:30,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-12 21:37:30,449 INFO L87 Difference]: Start difference. First operand 82203 states and 119019 transitions. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 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) [2024-10-12 21:37:34,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:37:34,245 INFO L93 Difference]: Finished difference Result 180395 states and 262387 transitions. [2024-10-12 21:37:34,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 21:37:34,246 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 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 100 [2024-10-12 21:37:34,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:37:34,511 INFO L225 Difference]: With dead ends: 180395 [2024-10-12 21:37:34,512 INFO L226 Difference]: Without dead ends: 165737 [2024-10-12 21:37:34,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-12 21:37:34,555 INFO L432 NwaCegarLoop]: 1661 mSDtfsCounter, 9915 mSDsluCounter, 2660 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9915 SdHoareTripleChecker+Valid, 4321 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 21:37:34,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9915 Valid, 4321 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 21:37:34,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165737 states. [2024-10-12 21:37:37,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165737 to 96859. [2024-10-12 21:37:37,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96859 states, 96857 states have (on average 1.4475257338137666) internal successors, (140203), 96858 states have internal predecessors, (140203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:38,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96859 states to 96859 states and 140203 transitions. [2024-10-12 21:37:38,025 INFO L78 Accepts]: Start accepts. Automaton has 96859 states and 140203 transitions. Word has length 100 [2024-10-12 21:37:38,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:37:38,025 INFO L471 AbstractCegarLoop]: Abstraction has 96859 states and 140203 transitions. [2024-10-12 21:37:38,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 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) [2024-10-12 21:37:38,025 INFO L276 IsEmpty]: Start isEmpty. Operand 96859 states and 140203 transitions. [2024-10-12 21:37:38,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-12 21:37:38,032 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:37:38,032 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:37:38,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-12 21:37:38,033 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:37:38,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:37:38,033 INFO L85 PathProgramCache]: Analyzing trace with hash -56395699, now seen corresponding path program 1 times [2024-10-12 21:37:38,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:37:38,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268721635] [2024-10-12 21:37:38,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:37:38,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:37:38,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:37:38,489 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-12 21:37:38,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:37:38,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268721635] [2024-10-12 21:37:38,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268721635] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:37:38,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:37:38,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-12 21:37:38,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340266379] [2024-10-12 21:37:38,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:37:38,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 21:37:38,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:37:38,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 21:37:38,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-12 21:37:38,492 INFO L87 Difference]: Start difference. First operand 96859 states and 140203 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:37:42,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:37:42,424 INFO L93 Difference]: Finished difference Result 195051 states and 283571 transitions. [2024-10-12 21:37:42,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 21:37:42,425 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2024-10-12 21:37:42,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:37:42,704 INFO L225 Difference]: With dead ends: 195051 [2024-10-12 21:37:42,704 INFO L226 Difference]: Without dead ends: 180393 [2024-10-12 21:37:42,743 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-12 21:37:42,744 INFO L432 NwaCegarLoop]: 1666 mSDtfsCounter, 9815 mSDsluCounter, 2828 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9815 SdHoareTripleChecker+Valid, 4494 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 21:37:42,744 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9815 Valid, 4494 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 21:37:42,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180393 states.