./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_two_p1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 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/hardware-verification-bv/btor2c-lazyMod.vis_arrays_two_p1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash a615b663b5895b4b891110151ed37d2c5777d9e61c5a340653346e5f4d27eeef --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 02:09:12,110 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 02:09:12,177 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-20 02:09:12,192 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 02:09:12,193 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 02:09:12,223 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 02:09:12,223 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 02:09:12,224 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 02:09:12,224 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 02:09:12,225 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 02:09:12,225 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 02:09:12,225 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 02:09:12,226 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 02:09:12,226 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 02:09:12,227 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 02:09:12,227 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 02:09:12,228 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 02:09:12,228 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 02:09:12,228 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 02:09:12,229 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 02:09:12,229 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 02:09:12,230 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 02:09:12,230 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 02:09:12,230 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 02:09:12,231 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 02:09:12,231 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 02:09:12,231 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 02:09:12,232 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 02:09:12,232 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 02:09:12,232 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 02:09:12,233 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 02:09:12,233 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 02:09:12,233 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 02:09:12,234 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 02:09:12,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 02:09:12,234 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 02:09:12,234 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 02:09:12,235 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 02:09:12,235 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 02:09:12,235 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a615b663b5895b4b891110151ed37d2c5777d9e61c5a340653346e5f4d27eeef [2024-11-20 02:09:12,467 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 02:09:12,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 02:09:12,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 02:09:12,493 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 02:09:12,494 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 02:09:12,495 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_two_p1.c [2024-11-20 02:09:13,870 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 02:09:14,117 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 02:09:14,118 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_two_p1.c [2024-11-20 02:09:14,138 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df0016e47/334ac7ec75da484eaab8f7d06c7a99d1/FLAG7d5f510c7 [2024-11-20 02:09:14,158 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df0016e47/334ac7ec75da484eaab8f7d06c7a99d1 [2024-11-20 02:09:14,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 02:09:14,164 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 02:09:14,167 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 02:09:14,167 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 02:09:14,173 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 02:09:14,173 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:09:14" (1/1) ... [2024-11-20 02:09:14,174 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51d48515 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:09:14, skipping insertion in model container [2024-11-20 02:09:14,176 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:09:14" (1/1) ... [2024-11-20 02:09:14,230 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 02:09:14,444 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_two_p1.c[1257,1270] [2024-11-20 02:09:14,757 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 02:09:14,767 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 02:09:14,777 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_two_p1.c[1257,1270] [2024-11-20 02:09:14,912 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 02:09:14,926 INFO L204 MainTranslator]: Completed translation [2024-11-20 02:09:14,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:09:14 WrapperNode [2024-11-20 02:09:14,927 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 02:09:14,928 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 02:09:14,929 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 02:09:14,929 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 02:09:14,934 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:09:14" (1/1) ... [2024-11-20 02:09:14,982 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:09:14" (1/1) ... [2024-11-20 02:09:15,288 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2921 [2024-11-20 02:09:15,288 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 02:09:15,289 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 02:09:15,289 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 02:09:15,289 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 02:09:15,300 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:09:14" (1/1) ... [2024-11-20 02:09:15,300 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:09:14" (1/1) ... [2024-11-20 02:09:15,501 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:09:14" (1/1) ... [2024-11-20 02:09:15,602 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-20 02:09:15,603 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:09:14" (1/1) ... [2024-11-20 02:09:15,603 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:09:14" (1/1) ... [2024-11-20 02:09:15,710 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:09:14" (1/1) ... [2024-11-20 02:09:15,737 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:09:14" (1/1) ... [2024-11-20 02:09:15,783 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:09:14" (1/1) ... [2024-11-20 02:09:15,804 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:09:14" (1/1) ... [2024-11-20 02:09:15,863 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 02:09:15,864 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 02:09:15,865 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 02:09:15,865 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 02:09:15,866 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:09:14" (1/1) ... [2024-11-20 02:09:15,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 02:09:15,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 02:09:15,899 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 02:09:15,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 02:09:15,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 02:09:15,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 02:09:15,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 02:09:15,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 02:09:16,315 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 02:09:16,318 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 02:09:18,863 INFO L? ?]: Removed 1802 outVars from TransFormulas that were not future-live. [2024-11-20 02:09:18,863 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 02:09:18,898 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 02:09:18,902 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 02:09:18,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:09:18 BoogieIcfgContainer [2024-11-20 02:09:18,903 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 02:09:18,905 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 02:09:18,906 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 02:09:18,909 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 02:09:18,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 02:09:14" (1/3) ... [2024-11-20 02:09:18,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@285f807a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:09:18, skipping insertion in model container [2024-11-20 02:09:18,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:09:14" (2/3) ... [2024-11-20 02:09:18,911 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@285f807a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:09:18, skipping insertion in model container [2024-11-20 02:09:18,912 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:09:18" (3/3) ... [2024-11-20 02:09:18,913 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_two_p1.c [2024-11-20 02:09:18,928 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 02:09:18,928 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 02:09:19,005 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 02:09:19,011 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;@672abb95, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 02:09:19,012 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 02:09:19,022 INFO L276 IsEmpty]: Start isEmpty. Operand has 842 states, 840 states have (on average 1.4988095238095238) internal successors, (1259), 841 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:19,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-20 02:09:19,031 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:09:19,031 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] [2024-11-20 02:09:19,032 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:09:19,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:09:19,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1223641875, now seen corresponding path program 1 times [2024-11-20 02:09:19,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:09:19,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974577997] [2024-11-20 02:09:19,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:09:19,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:09:19,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:09:20,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:09:20,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:09:20,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974577997] [2024-11-20 02:09:20,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974577997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:09:20,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:09:20,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 02:09:20,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354682128] [2024-11-20 02:09:20,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:09:20,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 02:09:20,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:09:20,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 02:09:20,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 02:09:20,409 INFO L87 Difference]: Start difference. First operand has 842 states, 840 states have (on average 1.4988095238095238) internal successors, (1259), 841 states have internal predecessors, (1259), 0 states have call successors, (0), 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 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:20,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:09:20,546 INFO L93 Difference]: Finished difference Result 1641 states and 2457 transitions. [2024-11-20 02:09:20,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 02:09:20,549 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-11-20 02:09:20,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:09:20,566 INFO L225 Difference]: With dead ends: 1641 [2024-11-20 02:09:20,566 INFO L226 Difference]: Without dead ends: 841 [2024-11-20 02:09:20,571 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 [2024-11-20 02:09:20,574 INFO L432 NwaCegarLoop]: 1253 mSDtfsCounter, 0 mSDsluCounter, 2500 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3753 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:09:20,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3753 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:09:20,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2024-11-20 02:09:20,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 841. [2024-11-20 02:09:20,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 841 states, 840 states have (on average 1.4964285714285714) internal successors, (1257), 840 states have internal predecessors, (1257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:20,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1257 transitions. [2024-11-20 02:09:20,660 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1257 transitions. Word has length 59 [2024-11-20 02:09:20,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:09:20,660 INFO L471 AbstractCegarLoop]: Abstraction has 841 states and 1257 transitions. [2024-11-20 02:09:20,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:20,661 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1257 transitions. [2024-11-20 02:09:20,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-20 02:09:20,662 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:09:20,663 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] [2024-11-20 02:09:20,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 02:09:20,663 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:09:20,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:09:20,664 INFO L85 PathProgramCache]: Analyzing trace with hash 723503043, now seen corresponding path program 1 times [2024-11-20 02:09:20,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:09:20,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754599719] [2024-11-20 02:09:20,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:09:20,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:09:20,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:09:21,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:09:21,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:09:21,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754599719] [2024-11-20 02:09:21,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754599719] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:09:21,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:09:21,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 02:09:21,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093548753] [2024-11-20 02:09:21,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:09:21,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 02:09:21,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:09:21,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 02:09:21,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 02:09:21,132 INFO L87 Difference]: Start difference. First operand 841 states and 1257 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 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) [2024-11-20 02:09:21,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:09:21,178 INFO L93 Difference]: Finished difference Result 1642 states and 2455 transitions. [2024-11-20 02:09:21,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 02:09:21,179 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 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 [2024-11-20 02:09:21,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:09:21,183 INFO L225 Difference]: With dead ends: 1642 [2024-11-20 02:09:21,183 INFO L226 Difference]: Without dead ends: 843 [2024-11-20 02:09:21,186 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 02:09:21,187 INFO L432 NwaCegarLoop]: 1253 mSDtfsCounter, 0 mSDsluCounter, 2496 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3749 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:09:21,187 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3749 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:09:21,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2024-11-20 02:09:21,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 843. [2024-11-20 02:09:21,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 842 states have (on average 1.495249406175772) internal successors, (1259), 842 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:21,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1259 transitions. [2024-11-20 02:09:21,207 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1259 transitions. Word has length 60 [2024-11-20 02:09:21,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:09:21,208 INFO L471 AbstractCegarLoop]: Abstraction has 843 states and 1259 transitions. [2024-11-20 02:09:21,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 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) [2024-11-20 02:09:21,208 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1259 transitions. [2024-11-20 02:09:21,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-20 02:09:21,210 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:09:21,210 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] [2024-11-20 02:09:21,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 02:09:21,210 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:09:21,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:09:21,211 INFO L85 PathProgramCache]: Analyzing trace with hash -144207738, now seen corresponding path program 1 times [2024-11-20 02:09:21,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:09:21,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742256248] [2024-11-20 02:09:21,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:09:21,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:09:21,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:09:22,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:09:22,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:09:22,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742256248] [2024-11-20 02:09:22,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742256248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:09:22,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:09:22,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 02:09:22,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938984059] [2024-11-20 02:09:22,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:09:22,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 02:09:22,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:09:22,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 02:09:22,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 02:09:22,400 INFO L87 Difference]: Start difference. First operand 843 states and 1259 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:22,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:09:22,446 INFO L93 Difference]: Finished difference Result 1646 states and 2459 transitions. [2024-11-20 02:09:22,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 02:09:22,446 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-20 02:09:22,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:09:22,452 INFO L225 Difference]: With dead ends: 1646 [2024-11-20 02:09:22,452 INFO L226 Difference]: Without dead ends: 845 [2024-11-20 02:09:22,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 02:09:22,454 INFO L432 NwaCegarLoop]: 1253 mSDtfsCounter, 0 mSDsluCounter, 2496 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3749 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:09:22,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3749 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:09:22,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2024-11-20 02:09:22,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 845. [2024-11-20 02:09:22,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 844 states have (on average 1.4940758293838863) internal successors, (1261), 844 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:22,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1261 transitions. [2024-11-20 02:09:22,477 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1261 transitions. Word has length 61 [2024-11-20 02:09:22,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:09:22,478 INFO L471 AbstractCegarLoop]: Abstraction has 845 states and 1261 transitions. [2024-11-20 02:09:22,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:22,478 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1261 transitions. [2024-11-20 02:09:22,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-20 02:09:22,482 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:09:22,483 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] [2024-11-20 02:09:22,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 02:09:22,483 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:09:22,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:09:22,483 INFO L85 PathProgramCache]: Analyzing trace with hash 733414570, now seen corresponding path program 1 times [2024-11-20 02:09:22,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:09:22,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004837844] [2024-11-20 02:09:22,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:09:22,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:09:22,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:09:22,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:09:22,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:09:22,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004837844] [2024-11-20 02:09:22,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004837844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:09:22,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:09:22,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 02:09:22,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378296581] [2024-11-20 02:09:22,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:09:22,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 02:09:22,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:09:22,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 02:09:22,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 02:09:22,949 INFO L87 Difference]: Start difference. First operand 845 states and 1261 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:23,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:09:23,038 INFO L93 Difference]: Finished difference Result 1654 states and 2469 transitions. [2024-11-20 02:09:23,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 02:09:23,039 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-20 02:09:23,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:09:23,042 INFO L225 Difference]: With dead ends: 1654 [2024-11-20 02:09:23,043 INFO L226 Difference]: Without dead ends: 851 [2024-11-20 02:09:23,046 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 02:09:23,048 INFO L432 NwaCegarLoop]: 1252 mSDtfsCounter, 4 mSDsluCounter, 4990 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6242 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:09:23,050 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 6242 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:09:23,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2024-11-20 02:09:23,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 851. [2024-11-20 02:09:23,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 850 states have (on average 1.4929411764705882) internal successors, (1269), 850 states have internal predecessors, (1269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:23,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1269 transitions. [2024-11-20 02:09:23,068 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1269 transitions. Word has length 62 [2024-11-20 02:09:23,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:09:23,068 INFO L471 AbstractCegarLoop]: Abstraction has 851 states and 1269 transitions. [2024-11-20 02:09:23,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:23,068 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1269 transitions. [2024-11-20 02:09:23,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-20 02:09:23,069 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:09:23,069 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] [2024-11-20 02:09:23,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 02:09:23,070 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:09:23,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:09:23,070 INFO L85 PathProgramCache]: Analyzing trace with hash 2106156792, now seen corresponding path program 1 times [2024-11-20 02:09:23,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:09:23,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686500021] [2024-11-20 02:09:23,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:09:23,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:09:23,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:09:23,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:09:23,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:09:23,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686500021] [2024-11-20 02:09:23,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686500021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:09:23,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:09:23,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 02:09:23,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832185493] [2024-11-20 02:09:23,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:09:23,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 02:09:23,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:09:23,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 02:09:23,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 02:09:23,455 INFO L87 Difference]: Start difference. First operand 851 states and 1269 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:23,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:09:23,515 INFO L93 Difference]: Finished difference Result 1666 states and 2485 transitions. [2024-11-20 02:09:23,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 02:09:23,515 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-11-20 02:09:23,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:09:23,520 INFO L225 Difference]: With dead ends: 1666 [2024-11-20 02:09:23,520 INFO L226 Difference]: Without dead ends: 857 [2024-11-20 02:09:23,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 02:09:23,522 INFO L432 NwaCegarLoop]: 1252 mSDtfsCounter, 4 mSDsluCounter, 3744 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4996 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:09:23,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4996 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:09:23,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2024-11-20 02:09:23,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 857. [2024-11-20 02:09:23,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 857 states, 856 states have (on average 1.4918224299065421) internal successors, (1277), 856 states have internal predecessors, (1277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:23,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1277 transitions. [2024-11-20 02:09:23,539 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1277 transitions. Word has length 63 [2024-11-20 02:09:23,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:09:23,540 INFO L471 AbstractCegarLoop]: Abstraction has 857 states and 1277 transitions. [2024-11-20 02:09:23,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:23,540 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1277 transitions. [2024-11-20 02:09:23,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-20 02:09:23,542 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:09:23,542 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] [2024-11-20 02:09:23,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 02:09:23,543 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:09:23,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:09:23,543 INFO L85 PathProgramCache]: Analyzing trace with hash -416324680, now seen corresponding path program 1 times [2024-11-20 02:09:23,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:09:23,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382574559] [2024-11-20 02:09:23,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:09:23,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:09:23,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:09:24,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:09:24,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:09:24,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382574559] [2024-11-20 02:09:24,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382574559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:09:24,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:09:24,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 02:09:24,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266161448] [2024-11-20 02:09:24,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:09:24,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 02:09:24,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:09:24,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 02:09:24,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 02:09:24,115 INFO L87 Difference]: Start difference. First operand 857 states and 1277 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:24,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:09:24,184 INFO L93 Difference]: Finished difference Result 1678 states and 2501 transitions. [2024-11-20 02:09:24,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 02:09:24,185 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2024-11-20 02:09:24,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:09:24,188 INFO L225 Difference]: With dead ends: 1678 [2024-11-20 02:09:24,188 INFO L226 Difference]: Without dead ends: 863 [2024-11-20 02:09:24,190 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 02:09:24,191 INFO L432 NwaCegarLoop]: 1252 mSDtfsCounter, 4 mSDsluCounter, 3744 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4996 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:09:24,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4996 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:09:24,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2024-11-20 02:09:24,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 863. [2024-11-20 02:09:24,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 862 states have (on average 1.4907192575406032) internal successors, (1285), 862 states have internal predecessors, (1285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:24,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1285 transitions. [2024-11-20 02:09:24,207 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1285 transitions. Word has length 64 [2024-11-20 02:09:24,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:09:24,208 INFO L471 AbstractCegarLoop]: Abstraction has 863 states and 1285 transitions. [2024-11-20 02:09:24,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:24,208 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1285 transitions. [2024-11-20 02:09:24,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-20 02:09:24,209 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:09:24,209 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] [2024-11-20 02:09:24,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 02:09:24,210 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:09:24,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:09:24,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1736182378, now seen corresponding path program 1 times [2024-11-20 02:09:24,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:09:24,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521970333] [2024-11-20 02:09:24,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:09:24,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:09:24,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:09:24,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:09:24,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:09:24,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521970333] [2024-11-20 02:09:24,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521970333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:09:24,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:09:24,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 02:09:24,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934087468] [2024-11-20 02:09:24,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:09:24,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 02:09:24,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:09:24,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 02:09:24,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 02:09:24,562 INFO L87 Difference]: Start difference. First operand 863 states and 1285 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:24,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:09:24,618 INFO L93 Difference]: Finished difference Result 1690 states and 2517 transitions. [2024-11-20 02:09:24,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 02:09:24,619 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-11-20 02:09:24,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:09:24,622 INFO L225 Difference]: With dead ends: 1690 [2024-11-20 02:09:24,623 INFO L226 Difference]: Without dead ends: 869 [2024-11-20 02:09:24,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 02:09:24,625 INFO L432 NwaCegarLoop]: 1252 mSDtfsCounter, 4 mSDsluCounter, 3744 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4996 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:09:24,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4996 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:09:24,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2024-11-20 02:09:24,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 869. [2024-11-20 02:09:24,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 869 states, 868 states have (on average 1.48963133640553) internal successors, (1293), 868 states have internal predecessors, (1293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:24,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1293 transitions. [2024-11-20 02:09:24,689 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1293 transitions. Word has length 65 [2024-11-20 02:09:24,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:09:24,690 INFO L471 AbstractCegarLoop]: Abstraction has 869 states and 1293 transitions. [2024-11-20 02:09:24,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:24,690 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1293 transitions. [2024-11-20 02:09:24,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-20 02:09:24,691 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:09:24,691 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] [2024-11-20 02:09:24,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 02:09:24,691 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:09:24,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:09:24,692 INFO L85 PathProgramCache]: Analyzing trace with hash 189302214, now seen corresponding path program 1 times [2024-11-20 02:09:24,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:09:24,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478065080] [2024-11-20 02:09:24,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:09:24,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:09:24,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:09:25,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:09:25,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:09:25,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478065080] [2024-11-20 02:09:25,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478065080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:09:25,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:09:25,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 02:09:25,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816876092] [2024-11-20 02:09:25,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:09:25,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 02:09:25,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:09:25,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 02:09:25,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 02:09:25,100 INFO L87 Difference]: Start difference. First operand 869 states and 1293 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:25,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:09:25,157 INFO L93 Difference]: Finished difference Result 1702 states and 2533 transitions. [2024-11-20 02:09:25,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 02:09:25,158 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-11-20 02:09:25,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:09:25,161 INFO L225 Difference]: With dead ends: 1702 [2024-11-20 02:09:25,161 INFO L226 Difference]: Without dead ends: 875 [2024-11-20 02:09:25,162 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 02:09:25,163 INFO L432 NwaCegarLoop]: 1252 mSDtfsCounter, 4 mSDsluCounter, 3744 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4996 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:09:25,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4996 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:09:25,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2024-11-20 02:09:25,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 875. [2024-11-20 02:09:25,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 875 states, 874 states have (on average 1.488558352402746) internal successors, (1301), 874 states have internal predecessors, (1301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:25,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1301 transitions. [2024-11-20 02:09:25,179 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1301 transitions. Word has length 66 [2024-11-20 02:09:25,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:09:25,179 INFO L471 AbstractCegarLoop]: Abstraction has 875 states and 1301 transitions. [2024-11-20 02:09:25,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:25,179 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1301 transitions. [2024-11-20 02:09:25,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-20 02:09:25,182 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:09:25,182 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:09:25,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 02:09:25,183 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:09:25,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:09:25,184 INFO L85 PathProgramCache]: Analyzing trace with hash 335829724, now seen corresponding path program 1 times [2024-11-20 02:09:25,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:09:25,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021065350] [2024-11-20 02:09:25,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:09:25,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:09:25,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:09:25,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:09:25,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:09:25,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021065350] [2024-11-20 02:09:25,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021065350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:09:25,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:09:25,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 02:09:25,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622441647] [2024-11-20 02:09:25,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:09:25,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 02:09:25,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:09:25,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 02:09:25,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 02:09:25,533 INFO L87 Difference]: Start difference. First operand 875 states and 1301 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:25,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:09:25,585 INFO L93 Difference]: Finished difference Result 1714 states and 2549 transitions. [2024-11-20 02:09:25,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 02:09:25,585 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-20 02:09:25,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:09:25,589 INFO L225 Difference]: With dead ends: 1714 [2024-11-20 02:09:25,589 INFO L226 Difference]: Without dead ends: 881 [2024-11-20 02:09:25,590 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 02:09:25,591 INFO L432 NwaCegarLoop]: 1252 mSDtfsCounter, 4 mSDsluCounter, 3744 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4996 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:09:25,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4996 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:09:25,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2024-11-20 02:09:25,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 881. [2024-11-20 02:09:25,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 881 states, 880 states have (on average 1.4875) internal successors, (1309), 880 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:25,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1309 transitions. [2024-11-20 02:09:25,608 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1309 transitions. Word has length 67 [2024-11-20 02:09:25,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:09:25,608 INFO L471 AbstractCegarLoop]: Abstraction has 881 states and 1309 transitions. [2024-11-20 02:09:25,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:25,608 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1309 transitions. [2024-11-20 02:09:25,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-20 02:09:25,611 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:09:25,611 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] [2024-11-20 02:09:25,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 02:09:25,611 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:09:25,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:09:25,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1196586284, now seen corresponding path program 1 times [2024-11-20 02:09:25,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:09:25,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249373518] [2024-11-20 02:09:25,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:09:25,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:09:25,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:09:26,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:09:26,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:09:26,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249373518] [2024-11-20 02:09:26,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249373518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:09:26,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:09:26,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 02:09:26,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009506080] [2024-11-20 02:09:26,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:09:26,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 02:09:26,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:09:26,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 02:09:26,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 02:09:26,445 INFO L87 Difference]: Start difference. First operand 881 states and 1309 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:26,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:09:26,506 INFO L93 Difference]: Finished difference Result 1722 states and 2559 transitions. [2024-11-20 02:09:26,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 02:09:26,506 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-11-20 02:09:26,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:09:26,510 INFO L225 Difference]: With dead ends: 1722 [2024-11-20 02:09:26,510 INFO L226 Difference]: Without dead ends: 883 [2024-11-20 02:09:26,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-20 02:09:26,511 INFO L432 NwaCegarLoop]: 1252 mSDtfsCounter, 1231 mSDsluCounter, 2494 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1231 SdHoareTripleChecker+Valid, 3746 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:09:26,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1231 Valid, 3746 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:09:26,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2024-11-20 02:09:26,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 883. [2024-11-20 02:09:26,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 882 states have (on average 1.4863945578231292) internal successors, (1311), 882 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:26,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1311 transitions. [2024-11-20 02:09:26,528 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1311 transitions. Word has length 68 [2024-11-20 02:09:26,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:09:26,528 INFO L471 AbstractCegarLoop]: Abstraction has 883 states and 1311 transitions. [2024-11-20 02:09:26,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:26,528 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1311 transitions. [2024-11-20 02:09:26,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-20 02:09:26,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:09:26,529 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] [2024-11-20 02:09:26,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 02:09:26,529 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:09:26,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:09:26,530 INFO L85 PathProgramCache]: Analyzing trace with hash -794746315, now seen corresponding path program 1 times [2024-11-20 02:09:26,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:09:26,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127244403] [2024-11-20 02:09:26,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:09:26,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:09:26,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:09:27,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:09:27,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:09:27,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127244403] [2024-11-20 02:09:27,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127244403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:09:27,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:09:27,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 02:09:27,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695537162] [2024-11-20 02:09:27,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:09:27,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 02:09:27,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:09:27,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 02:09:27,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 02:09:27,403 INFO L87 Difference]: Start difference. First operand 883 states and 1311 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:27,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:09:27,457 INFO L93 Difference]: Finished difference Result 1728 states and 2565 transitions. [2024-11-20 02:09:27,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 02:09:27,458 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-20 02:09:27,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:09:27,463 INFO L225 Difference]: With dead ends: 1728 [2024-11-20 02:09:27,463 INFO L226 Difference]: Without dead ends: 887 [2024-11-20 02:09:27,464 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-20 02:09:27,465 INFO L432 NwaCegarLoop]: 1252 mSDtfsCounter, 1210 mSDsluCounter, 2494 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1210 SdHoareTripleChecker+Valid, 3746 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:09:27,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1210 Valid, 3746 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:09:27,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2024-11-20 02:09:27,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 883. [2024-11-20 02:09:27,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 882 states have (on average 1.4863945578231292) internal successors, (1311), 882 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:27,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1311 transitions. [2024-11-20 02:09:27,485 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1311 transitions. Word has length 69 [2024-11-20 02:09:27,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:09:27,485 INFO L471 AbstractCegarLoop]: Abstraction has 883 states and 1311 transitions. [2024-11-20 02:09:27,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:27,485 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1311 transitions. [2024-11-20 02:09:27,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-20 02:09:27,486 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:09:27,486 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] [2024-11-20 02:09:27,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 02:09:27,486 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:09:27,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:09:27,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1669284108, now seen corresponding path program 1 times [2024-11-20 02:09:27,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:09:27,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4476230] [2024-11-20 02:09:27,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:09:27,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:09:27,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:09:28,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:09:28,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:09:28,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4476230] [2024-11-20 02:09:28,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4476230] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:09:28,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:09:28,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 02:09:28,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750476468] [2024-11-20 02:09:28,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:09:28,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 02:09:28,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:09:28,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 02:09:28,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 02:09:28,499 INFO L87 Difference]: Start difference. First operand 883 states and 1311 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:28,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:09:28,586 INFO L93 Difference]: Finished difference Result 1728 states and 2565 transitions. [2024-11-20 02:09:28,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 02:09:28,587 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2024-11-20 02:09:28,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:09:28,591 INFO L225 Difference]: With dead ends: 1728 [2024-11-20 02:09:28,591 INFO L226 Difference]: Without dead ends: 887 [2024-11-20 02:09:28,593 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-20 02:09:28,593 INFO L432 NwaCegarLoop]: 1252 mSDtfsCounter, 1215 mSDsluCounter, 3741 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1215 SdHoareTripleChecker+Valid, 4993 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:09:28,594 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1215 Valid, 4993 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:09:28,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2024-11-20 02:09:28,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 883. [2024-11-20 02:09:28,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 882 states have (on average 1.4863945578231292) internal successors, (1311), 882 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:28,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1311 transitions. [2024-11-20 02:09:28,614 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1311 transitions. Word has length 70 [2024-11-20 02:09:28,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:09:28,615 INFO L471 AbstractCegarLoop]: Abstraction has 883 states and 1311 transitions. [2024-11-20 02:09:28,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:28,615 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1311 transitions. [2024-11-20 02:09:28,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-20 02:09:28,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:09:28,616 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] [2024-11-20 02:09:28,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 02:09:28,617 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:09:28,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:09:28,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1793173323, now seen corresponding path program 1 times [2024-11-20 02:09:28,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:09:28,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711043187] [2024-11-20 02:09:28,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:09:28,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:09:28,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:09:29,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:09:29,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:09:29,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711043187] [2024-11-20 02:09:29,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711043187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:09:29,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:09:29,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 02:09:29,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179676506] [2024-11-20 02:09:29,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:09:29,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 02:09:29,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:09:29,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 02:09:29,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 02:09:29,481 INFO L87 Difference]: Start difference. First operand 883 states and 1311 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:29,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:09:29,549 INFO L93 Difference]: Finished difference Result 1728 states and 2565 transitions. [2024-11-20 02:09:29,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 02:09:29,550 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-11-20 02:09:29,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:09:29,553 INFO L225 Difference]: With dead ends: 1728 [2024-11-20 02:09:29,554 INFO L226 Difference]: Without dead ends: 887 [2024-11-20 02:09:29,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-20 02:09:29,556 INFO L432 NwaCegarLoop]: 1252 mSDtfsCounter, 1203 mSDsluCounter, 3741 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1203 SdHoareTripleChecker+Valid, 4993 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:09:29,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1203 Valid, 4993 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:09:29,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2024-11-20 02:09:29,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 883. [2024-11-20 02:09:29,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 882 states have (on average 1.4863945578231292) internal successors, (1311), 882 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:29,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1311 transitions. [2024-11-20 02:09:29,575 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1311 transitions. Word has length 71 [2024-11-20 02:09:29,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:09:29,576 INFO L471 AbstractCegarLoop]: Abstraction has 883 states and 1311 transitions. [2024-11-20 02:09:29,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:29,576 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1311 transitions. [2024-11-20 02:09:29,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-20 02:09:29,577 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:09:29,577 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] [2024-11-20 02:09:29,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 02:09:29,577 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:09:29,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:09:29,578 INFO L85 PathProgramCache]: Analyzing trace with hash 173883860, now seen corresponding path program 1 times [2024-11-20 02:09:29,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:09:29,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463149024] [2024-11-20 02:09:29,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:09:29,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:09:29,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:09:30,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:09:30,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:09:30,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463149024] [2024-11-20 02:09:30,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463149024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:09:30,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:09:30,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 02:09:30,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312270470] [2024-11-20 02:09:30,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:09:30,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 02:09:30,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:09:30,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 02:09:30,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 02:09:30,409 INFO L87 Difference]: Start difference. First operand 883 states and 1311 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:30,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:09:30,477 INFO L93 Difference]: Finished difference Result 1728 states and 2565 transitions. [2024-11-20 02:09:30,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 02:09:30,477 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2024-11-20 02:09:30,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:09:30,480 INFO L225 Difference]: With dead ends: 1728 [2024-11-20 02:09:30,480 INFO L226 Difference]: Without dead ends: 887 [2024-11-20 02:09:30,482 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-20 02:09:30,482 INFO L432 NwaCegarLoop]: 1252 mSDtfsCounter, 1225 mSDsluCounter, 3740 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1225 SdHoareTripleChecker+Valid, 4992 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:09:30,482 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1225 Valid, 4992 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:09:30,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2024-11-20 02:09:30,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 883. [2024-11-20 02:09:30,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 882 states have (on average 1.4863945578231292) internal successors, (1311), 882 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:30,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1311 transitions. [2024-11-20 02:09:30,500 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1311 transitions. Word has length 72 [2024-11-20 02:09:30,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:09:30,501 INFO L471 AbstractCegarLoop]: Abstraction has 883 states and 1311 transitions. [2024-11-20 02:09:30,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:30,501 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1311 transitions. [2024-11-20 02:09:30,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-20 02:09:30,502 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:09:30,502 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] [2024-11-20 02:09:30,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 02:09:30,502 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:09:30,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:09:30,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1498363051, now seen corresponding path program 1 times [2024-11-20 02:09:30,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:09:30,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066794632] [2024-11-20 02:09:30,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:09:30,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:09:30,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:09:31,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:09:31,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:09:31,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066794632] [2024-11-20 02:09:31,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066794632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:09:31,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:09:31,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 02:09:31,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969812184] [2024-11-20 02:09:31,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:09:31,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 02:09:31,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:09:31,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 02:09:31,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 02:09:31,320 INFO L87 Difference]: Start difference. First operand 883 states and 1311 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:31,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:09:31,374 INFO L93 Difference]: Finished difference Result 1728 states and 2565 transitions. [2024-11-20 02:09:31,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 02:09:31,375 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2024-11-20 02:09:31,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:09:31,378 INFO L225 Difference]: With dead ends: 1728 [2024-11-20 02:09:31,378 INFO L226 Difference]: Without dead ends: 887 [2024-11-20 02:09:31,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-20 02:09:31,381 INFO L432 NwaCegarLoop]: 1252 mSDtfsCounter, 1219 mSDsluCounter, 2495 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1219 SdHoareTripleChecker+Valid, 3747 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:09:31,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1219 Valid, 3747 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:09:31,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2024-11-20 02:09:31,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 883. [2024-11-20 02:09:31,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 882 states have (on average 1.4863945578231292) internal successors, (1311), 882 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:31,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1311 transitions. [2024-11-20 02:09:31,397 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1311 transitions. Word has length 73 [2024-11-20 02:09:31,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:09:31,397 INFO L471 AbstractCegarLoop]: Abstraction has 883 states and 1311 transitions. [2024-11-20 02:09:31,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:31,398 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1311 transitions. [2024-11-20 02:09:31,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-20 02:09:31,398 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:09:31,399 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] [2024-11-20 02:09:31,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 02:09:31,399 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:09:31,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:09:31,399 INFO L85 PathProgramCache]: Analyzing trace with hash -505560236, now seen corresponding path program 1 times [2024-11-20 02:09:31,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:09:31,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864417988] [2024-11-20 02:09:31,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:09:31,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:09:31,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:09:32,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:09:32,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:09:32,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864417988] [2024-11-20 02:09:32,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864417988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:09:32,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:09:32,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 02:09:32,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662432233] [2024-11-20 02:09:32,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:09:32,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 02:09:32,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:09:32,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 02:09:32,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 02:09:32,294 INFO L87 Difference]: Start difference. First operand 883 states and 1311 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 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) [2024-11-20 02:09:32,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:09:32,555 INFO L93 Difference]: Finished difference Result 1726 states and 2563 transitions. [2024-11-20 02:09:32,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 02:09:32,556 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 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 [2024-11-20 02:09:32,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:09:32,559 INFO L225 Difference]: With dead ends: 1726 [2024-11-20 02:09:32,559 INFO L226 Difference]: Without dead ends: 885 [2024-11-20 02:09:32,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-20 02:09:32,561 INFO L432 NwaCegarLoop]: 1158 mSDtfsCounter, 1229 mSDsluCounter, 2309 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1229 SdHoareTripleChecker+Valid, 3467 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 02:09:32,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1229 Valid, 3467 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 02:09:32,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2024-11-20 02:09:32,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 883. [2024-11-20 02:09:32,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 882 states have (on average 1.4863945578231292) internal successors, (1311), 882 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:32,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1311 transitions. [2024-11-20 02:09:32,577 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1311 transitions. Word has length 74 [2024-11-20 02:09:32,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:09:32,578 INFO L471 AbstractCegarLoop]: Abstraction has 883 states and 1311 transitions. [2024-11-20 02:09:32,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 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) [2024-11-20 02:09:32,578 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1311 transitions. [2024-11-20 02:09:32,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-20 02:09:32,579 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:09:32,579 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] [2024-11-20 02:09:32,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 02:09:32,579 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:09:32,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:09:32,580 INFO L85 PathProgramCache]: Analyzing trace with hash 2099278738, now seen corresponding path program 1 times [2024-11-20 02:09:32,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:09:32,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742830993] [2024-11-20 02:09:32,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:09:32,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:09:32,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:09:33,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:09:33,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:09:33,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742830993] [2024-11-20 02:09:33,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742830993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:09:33,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:09:33,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 02:09:33,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846656486] [2024-11-20 02:09:33,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:09:33,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 02:09:33,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:09:33,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 02:09:33,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 02:09:33,680 INFO L87 Difference]: Start difference. First operand 883 states and 1311 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:34,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:09:34,054 INFO L93 Difference]: Finished difference Result 1728 states and 2565 transitions. [2024-11-20 02:09:34,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 02:09:34,055 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2024-11-20 02:09:34,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:09:34,059 INFO L225 Difference]: With dead ends: 1728 [2024-11-20 02:09:34,059 INFO L226 Difference]: Without dead ends: 887 [2024-11-20 02:09:34,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-20 02:09:34,061 INFO L432 NwaCegarLoop]: 1158 mSDtfsCounter, 1198 mSDsluCounter, 3460 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1198 SdHoareTripleChecker+Valid, 4618 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 02:09:34,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1198 Valid, 4618 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 02:09:34,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2024-11-20 02:09:34,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 883. [2024-11-20 02:09:34,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 882 states have (on average 1.4863945578231292) internal successors, (1311), 882 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:34,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1311 transitions. [2024-11-20 02:09:34,084 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1311 transitions. Word has length 75 [2024-11-20 02:09:34,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:09:34,084 INFO L471 AbstractCegarLoop]: Abstraction has 883 states and 1311 transitions. [2024-11-20 02:09:34,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:34,085 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1311 transitions. [2024-11-20 02:09:34,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-20 02:09:34,086 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:09:34,086 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] [2024-11-20 02:09:34,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-20 02:09:34,087 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:09:34,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:09:34,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1884563700, now seen corresponding path program 1 times [2024-11-20 02:09:34,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:09:34,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851731365] [2024-11-20 02:09:34,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:09:34,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:09:34,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:09:35,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:09:35,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:09:35,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851731365] [2024-11-20 02:09:35,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851731365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:09:35,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:09:35,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 02:09:35,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492694183] [2024-11-20 02:09:35,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:09:35,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 02:09:35,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:09:35,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 02:09:35,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 02:09:35,238 INFO L87 Difference]: Start difference. First operand 883 states and 1311 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 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) [2024-11-20 02:09:35,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:09:35,484 INFO L93 Difference]: Finished difference Result 1728 states and 2565 transitions. [2024-11-20 02:09:35,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 02:09:35,484 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 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 [2024-11-20 02:09:35,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:09:35,488 INFO L225 Difference]: With dead ends: 1728 [2024-11-20 02:09:35,488 INFO L226 Difference]: Without dead ends: 887 [2024-11-20 02:09:35,489 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-20 02:09:35,490 INFO L432 NwaCegarLoop]: 1158 mSDtfsCounter, 1216 mSDsluCounter, 2309 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1216 SdHoareTripleChecker+Valid, 3467 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 02:09:35,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1216 Valid, 3467 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 02:09:35,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2024-11-20 02:09:35,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 883. [2024-11-20 02:09:35,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 882 states have (on average 1.4863945578231292) internal successors, (1311), 882 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:35,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1311 transitions. [2024-11-20 02:09:35,506 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1311 transitions. Word has length 76 [2024-11-20 02:09:35,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:09:35,506 INFO L471 AbstractCegarLoop]: Abstraction has 883 states and 1311 transitions. [2024-11-20 02:09:35,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 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) [2024-11-20 02:09:35,507 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1311 transitions. [2024-11-20 02:09:35,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-20 02:09:35,507 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:09:35,507 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:09:35,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-20 02:09:35,508 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:09:35,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:09:35,508 INFO L85 PathProgramCache]: Analyzing trace with hash -681649934, now seen corresponding path program 1 times [2024-11-20 02:09:35,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:09:35,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129075219] [2024-11-20 02:09:35,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:09:35,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:09:35,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:09:36,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:09:36,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:09:36,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129075219] [2024-11-20 02:09:36,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129075219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:09:36,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:09:36,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 02:09:36,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698020353] [2024-11-20 02:09:36,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:09:36,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 02:09:36,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:09:36,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 02:09:36,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 02:09:36,516 INFO L87 Difference]: Start difference. First operand 883 states and 1311 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:36,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:09:36,892 INFO L93 Difference]: Finished difference Result 1728 states and 2565 transitions. [2024-11-20 02:09:36,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 02:09:36,893 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-20 02:09:36,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:09:36,897 INFO L225 Difference]: With dead ends: 1728 [2024-11-20 02:09:36,897 INFO L226 Difference]: Without dead ends: 887 [2024-11-20 02:09:36,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-20 02:09:36,899 INFO L432 NwaCegarLoop]: 1158 mSDtfsCounter, 1222 mSDsluCounter, 3460 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1222 SdHoareTripleChecker+Valid, 4618 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 02:09:36,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1222 Valid, 4618 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 02:09:36,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2024-11-20 02:09:36,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 883. [2024-11-20 02:09:36,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 882 states have (on average 1.4863945578231292) internal successors, (1311), 882 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:36,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1311 transitions. [2024-11-20 02:09:36,918 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1311 transitions. Word has length 77 [2024-11-20 02:09:36,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:09:36,918 INFO L471 AbstractCegarLoop]: Abstraction has 883 states and 1311 transitions. [2024-11-20 02:09:36,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:36,918 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1311 transitions. [2024-11-20 02:09:36,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-20 02:09:36,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:09:36,919 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] [2024-11-20 02:09:36,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-20 02:09:36,920 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:09:36,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:09:36,921 INFO L85 PathProgramCache]: Analyzing trace with hash -320283564, now seen corresponding path program 1 times [2024-11-20 02:09:36,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:09:36,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147940860] [2024-11-20 02:09:36,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:09:36,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:09:37,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:09:37,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:09:37,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:09:37,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147940860] [2024-11-20 02:09:37,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147940860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:09:37,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:09:37,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 02:09:37,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635072156] [2024-11-20 02:09:37,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:09:37,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 02:09:37,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:09:37,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 02:09:37,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 02:09:37,935 INFO L87 Difference]: Start difference. First operand 883 states and 1311 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:38,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:09:38,269 INFO L93 Difference]: Finished difference Result 1728 states and 2565 transitions. [2024-11-20 02:09:38,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 02:09:38,270 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-11-20 02:09:38,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:09:38,273 INFO L225 Difference]: With dead ends: 1728 [2024-11-20 02:09:38,273 INFO L226 Difference]: Without dead ends: 887 [2024-11-20 02:09:38,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-20 02:09:38,275 INFO L432 NwaCegarLoop]: 1158 mSDtfsCounter, 1208 mSDsluCounter, 3460 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1208 SdHoareTripleChecker+Valid, 4618 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 02:09:38,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1208 Valid, 4618 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 02:09:38,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2024-11-20 02:09:38,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 883. [2024-11-20 02:09:38,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 882 states have (on average 1.4863945578231292) internal successors, (1311), 882 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:38,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1311 transitions. [2024-11-20 02:09:38,294 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1311 transitions. Word has length 78 [2024-11-20 02:09:38,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:09:38,294 INFO L471 AbstractCegarLoop]: Abstraction has 883 states and 1311 transitions. [2024-11-20 02:09:38,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:38,294 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1311 transitions. [2024-11-20 02:09:38,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-20 02:09:38,295 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:09:38,295 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:09:38,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-20 02:09:38,296 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:09:38,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:09:38,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1515352370, now seen corresponding path program 1 times [2024-11-20 02:09:38,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:09:38,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153250857] [2024-11-20 02:09:38,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:09:38,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:09:38,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:09:39,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:09:39,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:09:39,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153250857] [2024-11-20 02:09:39,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153250857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:09:39,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:09:39,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 02:09:39,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847267904] [2024-11-20 02:09:39,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:09:39,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 02:09:39,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:09:39,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 02:09:39,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 02:09:39,028 INFO L87 Difference]: Start difference. First operand 883 states and 1311 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:39,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:09:39,288 INFO L93 Difference]: Finished difference Result 1728 states and 2565 transitions. [2024-11-20 02:09:39,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 02:09:39,289 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-20 02:09:39,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:09:39,292 INFO L225 Difference]: With dead ends: 1728 [2024-11-20 02:09:39,292 INFO L226 Difference]: Without dead ends: 887 [2024-11-20 02:09:39,293 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-20 02:09:39,294 INFO L432 NwaCegarLoop]: 1158 mSDtfsCounter, 1201 mSDsluCounter, 2309 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1201 SdHoareTripleChecker+Valid, 3467 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 02:09:39,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1201 Valid, 3467 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 02:09:39,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2024-11-20 02:09:39,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 883. [2024-11-20 02:09:39,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 882 states have (on average 1.4863945578231292) internal successors, (1311), 882 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:39,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1311 transitions. [2024-11-20 02:09:39,313 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1311 transitions. Word has length 79 [2024-11-20 02:09:39,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:09:39,313 INFO L471 AbstractCegarLoop]: Abstraction has 883 states and 1311 transitions. [2024-11-20 02:09:39,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:39,314 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1311 transitions. [2024-11-20 02:09:39,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-20 02:09:39,314 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:09:39,315 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:09:39,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-20 02:09:39,315 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:09:39,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:09:39,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1688891468, now seen corresponding path program 1 times [2024-11-20 02:09:39,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:09:39,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776523796] [2024-11-20 02:09:39,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:09:39,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:09:40,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:09:41,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:09:41,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:09:41,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776523796] [2024-11-20 02:09:41,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776523796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:09:41,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:09:41,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 02:09:41,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893220331] [2024-11-20 02:09:41,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:09:41,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 02:09:41,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:09:41,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 02:09:41,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 02:09:41,448 INFO L87 Difference]: Start difference. First operand 883 states and 1311 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:41,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:09:41,784 INFO L93 Difference]: Finished difference Result 2369 states and 3516 transitions. [2024-11-20 02:09:41,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 02:09:41,785 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-11-20 02:09:41,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:09:41,790 INFO L225 Difference]: With dead ends: 2369 [2024-11-20 02:09:41,790 INFO L226 Difference]: Without dead ends: 1528 [2024-11-20 02:09:41,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-20 02:09:41,792 INFO L432 NwaCegarLoop]: 1220 mSDtfsCounter, 3043 mSDsluCounter, 4875 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3043 SdHoareTripleChecker+Valid, 6095 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 02:09:41,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3043 Valid, 6095 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 02:09:41,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1528 states. [2024-11-20 02:09:41,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1528 to 919. [2024-11-20 02:09:41,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 919 states, 918 states have (on average 1.4869281045751634) internal successors, (1365), 918 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:41,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1365 transitions. [2024-11-20 02:09:41,815 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1365 transitions. Word has length 80 [2024-11-20 02:09:41,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:09:41,816 INFO L471 AbstractCegarLoop]: Abstraction has 919 states and 1365 transitions. [2024-11-20 02:09:41,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:41,816 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1365 transitions. [2024-11-20 02:09:41,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2024-11-20 02:09:41,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:09:41,823 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:09:41,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-20 02:09:41,823 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:09:41,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:09:41,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1151264780, now seen corresponding path program 1 times [2024-11-20 02:09:41,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:09:41,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059400182] [2024-11-20 02:09:41,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:09:41,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:09:46,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:09:48,678 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-20 02:09:48,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:09:48,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059400182] [2024-11-20 02:09:48,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059400182] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 02:09:48,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872551669] [2024-11-20 02:09:48,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:09:48,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 02:09:48,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 02:09:48,682 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 02:09:48,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 02:09:50,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:09:50,785 INFO L255 TraceCheckSpWp]: Trace formula consists of 3699 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-20 02:09:50,823 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 02:09:53,643 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:09:53,644 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 02:09:55,993 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-20 02:09:55,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872551669] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 02:09:55,994 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 02:09:55,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 8] total 18 [2024-11-20 02:09:55,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472120022] [2024-11-20 02:09:55,995 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 02:09:55,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-20 02:09:55,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:09:55,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-20 02:09:55,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2024-11-20 02:09:55,999 INFO L87 Difference]: Start difference. First operand 919 states and 1365 transitions. Second operand has 18 states, 18 states have (on average 77.27777777777777) internal successors, (1391), 18 states have internal predecessors, (1391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:57,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:09:57,700 INFO L93 Difference]: Finished difference Result 1991 states and 2948 transitions. [2024-11-20 02:09:57,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 02:09:57,701 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 77.27777777777777) internal successors, (1391), 18 states have internal predecessors, (1391), 0 states have call successors, (0), 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 479 [2024-11-20 02:09:57,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:09:57,709 INFO L225 Difference]: With dead ends: 1991 [2024-11-20 02:09:57,709 INFO L226 Difference]: Without dead ends: 1150 [2024-11-20 02:09:57,712 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 965 GetRequests, 946 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2024-11-20 02:09:57,712 INFO L432 NwaCegarLoop]: 872 mSDtfsCounter, 3801 mSDsluCounter, 6784 mSDsCounter, 0 mSdLazyCounter, 3404 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3801 SdHoareTripleChecker+Valid, 7656 SdHoareTripleChecker+Invalid, 3406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-20 02:09:57,713 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3801 Valid, 7656 Invalid, 3406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3404 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-20 02:09:57,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1150 states. [2024-11-20 02:09:57,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1150 to 919. [2024-11-20 02:09:57,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 919 states, 918 states have (on average 1.4869281045751634) internal successors, (1365), 918 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:57,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1365 transitions. [2024-11-20 02:09:57,742 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1365 transitions. Word has length 479 [2024-11-20 02:09:57,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:09:57,743 INFO L471 AbstractCegarLoop]: Abstraction has 919 states and 1365 transitions. [2024-11-20 02:09:57,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 77.27777777777777) internal successors, (1391), 18 states have internal predecessors, (1391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:09:57,745 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1365 transitions. [2024-11-20 02:09:57,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2024-11-20 02:09:57,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:09:57,754 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:09:57,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-20 02:09:57,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-20 02:09:57,956 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:09:57,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:09:57,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1851303939, now seen corresponding path program 1 times [2024-11-20 02:09:57,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:09:57,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332408415] [2024-11-20 02:09:57,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:09:57,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:10:03,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:10:08,421 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:10:08,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:10:08,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332408415] [2024-11-20 02:10:08,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332408415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:10:08,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:10:08,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 02:10:08,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063000624] [2024-11-20 02:10:08,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:10:08,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 02:10:08,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:10:08,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 02:10:08,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-20 02:10:08,425 INFO L87 Difference]: Start difference. First operand 919 states and 1365 transitions. Second operand has 10 states, 10 states have (on average 48.0) internal successors, (480), 10 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:10:08,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:10:08,729 INFO L93 Difference]: Finished difference Result 2202 states and 3266 transitions. [2024-11-20 02:10:08,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 02:10:08,730 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 48.0) internal successors, (480), 10 states have internal predecessors, (480), 0 states have call successors, (0), 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 480 [2024-11-20 02:10:08,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:10:08,735 INFO L225 Difference]: With dead ends: 2202 [2024-11-20 02:10:08,735 INFO L226 Difference]: Without dead ends: 1361 [2024-11-20 02:10:08,737 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2024-11-20 02:10:08,738 INFO L432 NwaCegarLoop]: 1236 mSDtfsCounter, 2426 mSDsluCounter, 7950 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2426 SdHoareTripleChecker+Valid, 9186 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 02:10:08,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2426 Valid, 9186 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 02:10:08,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1361 states. [2024-11-20 02:10:08,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1361 to 1304. [2024-11-20 02:10:08,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1304 states, 1303 states have (on average 1.4819646968534153) internal successors, (1931), 1303 states have internal predecessors, (1931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:10:08,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 1931 transitions. [2024-11-20 02:10:08,760 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 1931 transitions. Word has length 480 [2024-11-20 02:10:08,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:10:08,761 INFO L471 AbstractCegarLoop]: Abstraction has 1304 states and 1931 transitions. [2024-11-20 02:10:08,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 48.0) internal successors, (480), 10 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:10:08,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 1931 transitions. [2024-11-20 02:10:08,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2024-11-20 02:10:08,768 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:10:08,768 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:10:08,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-20 02:10:08,768 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:10:08,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:10:08,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1553173598, now seen corresponding path program 1 times [2024-11-20 02:10:08,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:10:08,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529554450] [2024-11-20 02:10:08,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:10:08,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:10:14,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat