./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-97.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-97.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1168304632f0077b83496b9ac9fcc9f4b7202af110e2ee289e9a700c4c953dc1 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 19:56:56,058 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 19:56:56,140 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 19:56:56,146 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 19:56:56,148 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 19:56:56,174 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 19:56:56,174 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 19:56:56,175 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 19:56:56,175 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 19:56:56,175 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 19:56:56,176 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 19:56:56,176 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 19:56:56,176 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 19:56:56,177 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 19:56:56,179 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 19:56:56,179 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 19:56:56,179 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 19:56:56,179 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 19:56:56,180 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 19:56:56,180 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 19:56:56,180 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 19:56:56,180 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 19:56:56,181 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 19:56:56,181 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 19:56:56,182 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 19:56:56,184 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 19:56:56,184 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 19:56:56,184 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 19:56:56,184 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 19:56:56,184 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 19:56:56,184 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 19:56:56,185 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 19:56:56,185 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:56:56,185 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 19:56:56,185 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 19:56:56,185 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 19:56:56,185 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 19:56:56,185 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 19:56:56,186 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 19:56:56,186 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 19:56:56,186 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 19:56:56,187 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 19:56:56,187 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1168304632f0077b83496b9ac9fcc9f4b7202af110e2ee289e9a700c4c953dc1 [2024-11-18 19:56:56,412 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 19:56:56,433 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 19:56:56,436 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 19:56:56,437 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 19:56:56,438 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 19:56:56,439 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-97.i [2024-11-18 19:56:57,939 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 19:56:58,142 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 19:56:58,143 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-97.i [2024-11-18 19:56:58,165 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/242de1a90/df3ff6d3762d4d28a24068f074c76bc6/FLAG7578bc326 [2024-11-18 19:56:58,499 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/242de1a90/df3ff6d3762d4d28a24068f074c76bc6 [2024-11-18 19:56:58,502 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 19:56:58,503 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 19:56:58,504 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 19:56:58,504 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 19:56:58,514 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 19:56:58,519 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:56:58" (1/1) ... [2024-11-18 19:56:58,520 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d28dadd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:58, skipping insertion in model container [2024-11-18 19:56:58,520 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:56:58" (1/1) ... [2024-11-18 19:56:58,586 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 19:56:58,748 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/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-97.i[916,929] [2024-11-18 19:56:58,903 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:56:58,920 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 19:56:58,929 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/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-97.i[916,929] [2024-11-18 19:56:59,087 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:56:59,104 INFO L204 MainTranslator]: Completed translation [2024-11-18 19:56:59,105 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:59 WrapperNode [2024-11-18 19:56:59,105 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 19:56:59,106 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 19:56:59,107 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 19:56:59,109 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 19:56:59,115 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:59" (1/1) ... [2024-11-18 19:56:59,141 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:59" (1/1) ... [2024-11-18 19:56:59,212 INFO L138 Inliner]: procedures = 26, calls = 110, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 853 [2024-11-18 19:56:59,213 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 19:56:59,214 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 19:56:59,214 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 19:56:59,214 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 19:56:59,222 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:59" (1/1) ... [2024-11-18 19:56:59,222 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:59" (1/1) ... [2024-11-18 19:56:59,235 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:59" (1/1) ... [2024-11-18 19:56:59,272 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]. [2024-11-18 19:56:59,272 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:59" (1/1) ... [2024-11-18 19:56:59,273 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:59" (1/1) ... [2024-11-18 19:56:59,297 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:59" (1/1) ... [2024-11-18 19:56:59,302 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:59" (1/1) ... [2024-11-18 19:56:59,311 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:59" (1/1) ... [2024-11-18 19:56:59,324 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:59" (1/1) ... [2024-11-18 19:56:59,336 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 19:56:59,337 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 19:56:59,337 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 19:56:59,337 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 19:56:59,338 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:59" (1/1) ... [2024-11-18 19:56:59,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:56:59,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:56:59,365 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) [2024-11-18 19:56:59,367 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 [2024-11-18 19:56:59,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 19:56:59,396 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 19:56:59,396 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 19:56:59,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 19:56:59,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 19:56:59,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 19:56:59,498 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 19:56:59,500 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 19:57:00,639 INFO L? ?]: Removed 33 outVars from TransFormulas that were not future-live. [2024-11-18 19:57:00,640 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 19:57:00,654 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 19:57:00,654 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 19:57:00,655 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:57:00 BoogieIcfgContainer [2024-11-18 19:57:00,655 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 19:57:00,657 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 19:57:00,657 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 19:57:00,660 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 19:57:00,660 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:56:58" (1/3) ... [2024-11-18 19:57:00,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fbafb5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:57:00, skipping insertion in model container [2024-11-18 19:57:00,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:59" (2/3) ... [2024-11-18 19:57:00,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fbafb5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:57:00, skipping insertion in model container [2024-11-18 19:57:00,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:57:00" (3/3) ... [2024-11-18 19:57:00,662 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-97.i [2024-11-18 19:57:00,674 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 19:57:00,674 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 19:57:00,726 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 19:57:00,732 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;@2d8be73b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 19:57:00,732 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 19:57:00,737 INFO L276 IsEmpty]: Start isEmpty. Operand has 342 states, 242 states have (on average 1.5743801652892562) internal successors, (381), 243 states have internal predecessors, (381), 97 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 97 states have call predecessors, (97), 97 states have call successors, (97) [2024-11-18 19:57:00,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 631 [2024-11-18 19:57:00,773 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:57:00,774 INFO L215 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:57:00,774 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:57:00,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:57:00,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1178726883, now seen corresponding path program 1 times [2024-11-18 19:57:00,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:57:00,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645103923] [2024-11-18 19:57:00,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:57:00,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:57:00,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:57:01,494 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 18432 trivial. 0 not checked. [2024-11-18 19:57:01,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:57:01,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645103923] [2024-11-18 19:57:01,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645103923] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 19:57:01,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112184615] [2024-11-18 19:57:01,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:57:01,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 19:57:01,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:57:01,501 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) [2024-11-18 19:57:01,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 19:57:01,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:57:01,841 INFO L255 TraceCheckSpWp]: Trace formula consists of 1452 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 19:57:01,861 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 19:57:01,932 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 18432 trivial. 0 not checked. [2024-11-18 19:57:01,932 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 19:57:01,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [112184615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:57:01,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 19:57:01,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 19:57:01,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309169643] [2024-11-18 19:57:01,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:57:01,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 19:57:01,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:57:01,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 19:57:01,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 19:57:01,966 INFO L87 Difference]: Start difference. First operand has 342 states, 242 states have (on average 1.5743801652892562) internal successors, (381), 243 states have internal predecessors, (381), 97 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 97 states have call predecessors, (97), 97 states have call successors, (97) Second operand has 2 states, 2 states have (on average 75.0) internal successors, (150), 2 states have internal predecessors, (150), 2 states have call successors, (97), 2 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 2 states have call successors, (97) [2024-11-18 19:57:02,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:57:02,017 INFO L93 Difference]: Finished difference Result 677 states and 1241 transitions. [2024-11-18 19:57:02,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 19:57:02,020 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 75.0) internal successors, (150), 2 states have internal predecessors, (150), 2 states have call successors, (97), 2 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 2 states have call successors, (97) Word has length 630 [2024-11-18 19:57:02,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:57:02,028 INFO L225 Difference]: With dead ends: 677 [2024-11-18 19:57:02,028 INFO L226 Difference]: Without dead ends: 338 [2024-11-18 19:57:02,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 631 GetRequests, 631 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 19:57:02,038 INFO L432 NwaCegarLoop]: 566 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:57:02,038 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:57:02,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2024-11-18 19:57:02,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2024-11-18 19:57:02,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 239 states have (on average 1.5564853556485356) internal successors, (372), 239 states have internal predecessors, (372), 97 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 97 states have call predecessors, (97), 97 states have call successors, (97) [2024-11-18 19:57:02,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 566 transitions. [2024-11-18 19:57:02,120 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 566 transitions. Word has length 630 [2024-11-18 19:57:02,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:57:02,121 INFO L471 AbstractCegarLoop]: Abstraction has 338 states and 566 transitions. [2024-11-18 19:57:02,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 75.0) internal successors, (150), 2 states have internal predecessors, (150), 2 states have call successors, (97), 2 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 2 states have call successors, (97) [2024-11-18 19:57:02,121 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 566 transitions. [2024-11-18 19:57:02,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 631 [2024-11-18 19:57:02,133 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:57:02,133 INFO L215 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:57:02,153 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 19:57:02,334 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,SelfDestructingSolverStorable0 [2024-11-18 19:57:02,335 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:57:02,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:57:02,336 INFO L85 PathProgramCache]: Analyzing trace with hash -495177583, now seen corresponding path program 1 times [2024-11-18 19:57:02,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:57:02,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119076338] [2024-11-18 19:57:02,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:57:02,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:57:02,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:57:02,776 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2024-11-18 19:57:02,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:57:02,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119076338] [2024-11-18 19:57:02,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119076338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:57:02,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:57:02,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:57:02,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994831925] [2024-11-18 19:57:02,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:57:02,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:57:02,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:57:02,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:57:02,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:57:02,785 INFO L87 Difference]: Start difference. First operand 338 states and 566 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-18 19:57:02,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:57:02,877 INFO L93 Difference]: Finished difference Result 871 states and 1467 transitions. [2024-11-18 19:57:02,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:57:02,878 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) Word has length 630 [2024-11-18 19:57:02,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:57:02,890 INFO L225 Difference]: With dead ends: 871 [2024-11-18 19:57:02,891 INFO L226 Difference]: Without dead ends: 536 [2024-11-18 19:57:02,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:57:02,894 INFO L432 NwaCegarLoop]: 897 mSDtfsCounter, 344 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 1443 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:57:02,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 1443 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:57:02,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-18 19:57:02,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 533. [2024-11-18 19:57:02,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 417 states have (on average 1.6163069544364508) internal successors, (674), 418 states have internal predecessors, (674), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 112 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-18 19:57:02,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 900 transitions. [2024-11-18 19:57:02,986 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 900 transitions. Word has length 630 [2024-11-18 19:57:02,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:57:02,991 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 900 transitions. [2024-11-18 19:57:02,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-18 19:57:02,992 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 900 transitions. [2024-11-18 19:57:03,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2024-11-18 19:57:03,041 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:57:03,041 INFO L215 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:57:03,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 19:57:03,042 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:57:03,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:57:03,043 INFO L85 PathProgramCache]: Analyzing trace with hash -270948929, now seen corresponding path program 1 times [2024-11-18 19:57:03,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:57:03,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826525611] [2024-11-18 19:57:03,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:57:03,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:57:03,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:57:03,413 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2024-11-18 19:57:03,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:57:03,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826525611] [2024-11-18 19:57:03,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826525611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:57:03,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:57:03,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:57:03,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803915872] [2024-11-18 19:57:03,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:57:03,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:57:03,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:57:03,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:57:03,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:57:03,421 INFO L87 Difference]: Start difference. First operand 533 states and 900 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-18 19:57:03,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:57:03,505 INFO L93 Difference]: Finished difference Result 1464 states and 2478 transitions. [2024-11-18 19:57:03,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:57:03,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) Word has length 631 [2024-11-18 19:57:03,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:57:03,520 INFO L225 Difference]: With dead ends: 1464 [2024-11-18 19:57:03,521 INFO L226 Difference]: Without dead ends: 934 [2024-11-18 19:57:03,523 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:57:03,525 INFO L432 NwaCegarLoop]: 682 mSDtfsCounter, 362 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 1234 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:57:03,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 1234 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:57:03,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2024-11-18 19:57:03,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 931. [2024-11-18 19:57:03,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 931 states, 755 states have (on average 1.6304635761589403) internal successors, (1231), 758 states have internal predecessors, (1231), 171 states have call successors, (171), 4 states have call predecessors, (171), 4 states have return successors, (171), 168 states have call predecessors, (171), 171 states have call successors, (171) [2024-11-18 19:57:03,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1573 transitions. [2024-11-18 19:57:03,603 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1573 transitions. Word has length 631 [2024-11-18 19:57:03,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:57:03,605 INFO L471 AbstractCegarLoop]: Abstraction has 931 states and 1573 transitions. [2024-11-18 19:57:03,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-18 19:57:03,606 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1573 transitions. [2024-11-18 19:57:03,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2024-11-18 19:57:03,619 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:57:03,619 INFO L215 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:57:03,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 19:57:03,620 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:57:03,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:57:03,620 INFO L85 PathProgramCache]: Analyzing trace with hash 123647743, now seen corresponding path program 1 times [2024-11-18 19:57:03,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:57:03,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777461712] [2024-11-18 19:57:03,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:57:03,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:57:03,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:57:03,915 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2024-11-18 19:57:03,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:57:03,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777461712] [2024-11-18 19:57:03,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777461712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:57:03,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:57:03,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:57:03,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058525778] [2024-11-18 19:57:03,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:57:03,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:57:03,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:57:03,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:57:03,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:57:03,920 INFO L87 Difference]: Start difference. First operand 931 states and 1573 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-18 19:57:03,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:57:03,980 INFO L93 Difference]: Finished difference Result 1866 states and 3148 transitions. [2024-11-18 19:57:03,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:57:03,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) Word has length 631 [2024-11-18 19:57:03,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:57:03,995 INFO L225 Difference]: With dead ends: 1866 [2024-11-18 19:57:03,995 INFO L226 Difference]: Without dead ends: 938 [2024-11-18 19:57:03,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:57:04,000 INFO L432 NwaCegarLoop]: 586 mSDtfsCounter, 352 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:57:04,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 1138 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:57:04,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2024-11-18 19:57:04,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 585. [2024-11-18 19:57:04,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 468 states have (on average 1.6175213675213675) internal successors, (757), 469 states have internal predecessors, (757), 113 states have call successors, (113), 3 states have call predecessors, (113), 3 states have return successors, (113), 112 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-18 19:57:04,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 983 transitions. [2024-11-18 19:57:04,054 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 983 transitions. Word has length 631 [2024-11-18 19:57:04,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:57:04,056 INFO L471 AbstractCegarLoop]: Abstraction has 585 states and 983 transitions. [2024-11-18 19:57:04,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-18 19:57:04,057 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 983 transitions. [2024-11-18 19:57:04,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2024-11-18 19:57:04,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:57:04,063 INFO L215 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:57:04,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 19:57:04,064 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:57:04,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:57:04,065 INFO L85 PathProgramCache]: Analyzing trace with hash 684347521, now seen corresponding path program 1 times [2024-11-18 19:57:04,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:57:04,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754685919] [2024-11-18 19:57:04,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:57:04,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:57:04,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:57:04,347 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2024-11-18 19:57:04,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:57:04,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754685919] [2024-11-18 19:57:04,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754685919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:57:04,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:57:04,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:57:04,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044552558] [2024-11-18 19:57:04,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:57:04,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:57:04,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:57:04,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:57:04,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:57:04,351 INFO L87 Difference]: Start difference. First operand 585 states and 983 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-18 19:57:04,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:57:04,413 INFO L93 Difference]: Finished difference Result 1749 states and 2943 transitions. [2024-11-18 19:57:04,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:57:04,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) Word has length 631 [2024-11-18 19:57:04,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:57:04,421 INFO L225 Difference]: With dead ends: 1749 [2024-11-18 19:57:04,422 INFO L226 Difference]: Without dead ends: 1167 [2024-11-18 19:57:04,423 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:57:04,424 INFO L432 NwaCegarLoop]: 904 mSDtfsCounter, 556 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 1461 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:57:04,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [556 Valid, 1461 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:57:04,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1167 states. [2024-11-18 19:57:04,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1167 to 1165. [2024-11-18 19:57:04,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1165 states, 932 states have (on average 1.611587982832618) internal successors, (1502), 934 states have internal predecessors, (1502), 226 states have call successors, (226), 6 states have call predecessors, (226), 6 states have return successors, (226), 224 states have call predecessors, (226), 226 states have call successors, (226) [2024-11-18 19:57:04,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1165 states to 1165 states and 1954 transitions. [2024-11-18 19:57:04,531 INFO L78 Accepts]: Start accepts. Automaton has 1165 states and 1954 transitions. Word has length 631 [2024-11-18 19:57:04,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:57:04,532 INFO L471 AbstractCegarLoop]: Abstraction has 1165 states and 1954 transitions. [2024-11-18 19:57:04,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-18 19:57:04,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1165 states and 1954 transitions. [2024-11-18 19:57:04,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2024-11-18 19:57:04,536 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:57:04,536 INFO L215 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:57:04,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 19:57:04,537 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:57:04,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:57:04,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1945264771, now seen corresponding path program 1 times [2024-11-18 19:57:04,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:57:04,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962147216] [2024-11-18 19:57:04,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:57:04,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:57:04,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:57:04,712 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2024-11-18 19:57:04,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:57:04,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962147216] [2024-11-18 19:57:04,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962147216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:57:04,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:57:04,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:57:04,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610635377] [2024-11-18 19:57:04,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:57:04,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:57:04,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:57:04,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:57:04,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:57:04,714 INFO L87 Difference]: Start difference. First operand 1165 states and 1954 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-18 19:57:04,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:57:04,781 INFO L93 Difference]: Finished difference Result 3481 states and 5840 transitions. [2024-11-18 19:57:04,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:57:04,781 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) Word has length 631 [2024-11-18 19:57:04,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:57:04,791 INFO L225 Difference]: With dead ends: 3481 [2024-11-18 19:57:04,791 INFO L226 Difference]: Without dead ends: 2319 [2024-11-18 19:57:04,793 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:57:04,793 INFO L432 NwaCegarLoop]: 1030 mSDtfsCounter, 535 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 1585 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:57:04,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [535 Valid, 1585 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:57:04,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2319 states. [2024-11-18 19:57:04,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2319 to 2309. [2024-11-18 19:57:04,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2309 states, 1844 states have (on average 1.6052060737527114) internal successors, (2960), 1848 states have internal predecessors, (2960), 452 states have call successors, (452), 12 states have call predecessors, (452), 12 states have return successors, (452), 448 states have call predecessors, (452), 452 states have call successors, (452) [2024-11-18 19:57:04,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2309 states to 2309 states and 3864 transitions. [2024-11-18 19:57:04,925 INFO L78 Accepts]: Start accepts. Automaton has 2309 states and 3864 transitions. Word has length 631 [2024-11-18 19:57:04,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:57:04,926 INFO L471 AbstractCegarLoop]: Abstraction has 2309 states and 3864 transitions. [2024-11-18 19:57:04,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-18 19:57:04,926 INFO L276 IsEmpty]: Start isEmpty. Operand 2309 states and 3864 transitions. [2024-11-18 19:57:04,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2024-11-18 19:57:04,933 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:57:04,933 INFO L215 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:57:04,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 19:57:04,933 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:57:04,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:57:04,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1511535685, now seen corresponding path program 1 times [2024-11-18 19:57:04,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:57:04,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921062429] [2024-11-18 19:57:04,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:57:04,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:57:04,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:57:05,169 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2024-11-18 19:57:05,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:57:05,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921062429] [2024-11-18 19:57:05,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921062429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:57:05,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:57:05,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:57:05,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927319618] [2024-11-18 19:57:05,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:57:05,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:57:05,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:57:05,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:57:05,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:57:05,172 INFO L87 Difference]: Start difference. First operand 2309 states and 3864 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-18 19:57:05,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:57:05,308 INFO L93 Difference]: Finished difference Result 6085 states and 10146 transitions. [2024-11-18 19:57:05,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:57:05,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) Word has length 631 [2024-11-18 19:57:05,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:57:05,326 INFO L225 Difference]: With dead ends: 6085 [2024-11-18 19:57:05,326 INFO L226 Difference]: Without dead ends: 3779 [2024-11-18 19:57:05,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:57:05,335 INFO L432 NwaCegarLoop]: 711 mSDtfsCounter, 322 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:57:05,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 1258 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:57:05,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3779 states. [2024-11-18 19:57:05,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3779 to 3773. [2024-11-18 19:57:05,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3773 states, 3000 states have (on average 1.5813333333333333) internal successors, (4744), 3012 states have internal predecessors, (4744), 748 states have call successors, (748), 24 states have call predecessors, (748), 24 states have return successors, (748), 736 states have call predecessors, (748), 748 states have call successors, (748) [2024-11-18 19:57:05,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3773 states to 3773 states and 6240 transitions. [2024-11-18 19:57:05,599 INFO L78 Accepts]: Start accepts. Automaton has 3773 states and 6240 transitions. Word has length 631 [2024-11-18 19:57:05,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:57:05,600 INFO L471 AbstractCegarLoop]: Abstraction has 3773 states and 6240 transitions. [2024-11-18 19:57:05,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-18 19:57:05,600 INFO L276 IsEmpty]: Start isEmpty. Operand 3773 states and 6240 transitions. [2024-11-18 19:57:05,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2024-11-18 19:57:05,608 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:57:05,608 INFO L215 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:57:05,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 19:57:05,609 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:57:05,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:57:05,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1397228217, now seen corresponding path program 1 times [2024-11-18 19:57:05,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:57:05,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230469282] [2024-11-18 19:57:05,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:57:05,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:57:05,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:57:05,849 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2024-11-18 19:57:05,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:57:05,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230469282] [2024-11-18 19:57:05,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230469282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:57:05,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:57:05,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:57:05,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031189785] [2024-11-18 19:57:05,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:57:05,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:57:05,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:57:05,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:57:05,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:57:05,852 INFO L87 Difference]: Start difference. First operand 3773 states and 6240 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-18 19:57:06,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:57:06,026 INFO L93 Difference]: Finished difference Result 9905 states and 16254 transitions. [2024-11-18 19:57:06,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:57:06,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) Word has length 631 [2024-11-18 19:57:06,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:57:06,053 INFO L225 Difference]: With dead ends: 9905 [2024-11-18 19:57:06,053 INFO L226 Difference]: Without dead ends: 6135 [2024-11-18 19:57:06,116 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:57:06,116 INFO L432 NwaCegarLoop]: 682 mSDtfsCounter, 260 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 1239 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:57:06,117 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 1239 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:57:06,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6135 states. [2024-11-18 19:57:06,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6135 to 6125. [2024-11-18 19:57:06,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6125 states, 4848 states have (on average 1.5544554455445545) internal successors, (7536), 4876 states have internal predecessors, (7536), 1228 states have call successors, (1228), 48 states have call predecessors, (1228), 48 states have return successors, (1228), 1200 states have call predecessors, (1228), 1228 states have call successors, (1228) [2024-11-18 19:57:06,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6125 states to 6125 states and 9992 transitions. [2024-11-18 19:57:06,411 INFO L78 Accepts]: Start accepts. Automaton has 6125 states and 9992 transitions. Word has length 631 [2024-11-18 19:57:06,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:57:06,412 INFO L471 AbstractCegarLoop]: Abstraction has 6125 states and 9992 transitions. [2024-11-18 19:57:06,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-18 19:57:06,412 INFO L276 IsEmpty]: Start isEmpty. Operand 6125 states and 9992 transitions. [2024-11-18 19:57:06,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2024-11-18 19:57:06,425 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:57:06,426 INFO L215 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:57:06,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 19:57:06,426 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:57:06,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:57:06,427 INFO L85 PathProgramCache]: Analyzing trace with hash -579579767, now seen corresponding path program 1 times [2024-11-18 19:57:06,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:57:06,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122088837] [2024-11-18 19:57:06,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:57:06,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:57:06,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:57:06,713 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2024-11-18 19:57:06,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:57:06,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122088837] [2024-11-18 19:57:06,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122088837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:57:06,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:57:06,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:57:06,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534675819] [2024-11-18 19:57:06,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:57:06,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:57:06,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:57:06,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:57:06,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:57:06,718 INFO L87 Difference]: Start difference. First operand 6125 states and 9992 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-18 19:57:07,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:57:07,129 INFO L93 Difference]: Finished difference Result 17921 states and 29234 transitions. [2024-11-18 19:57:07,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:57:07,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) Word has length 631 [2024-11-18 19:57:07,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:57:07,191 INFO L225 Difference]: With dead ends: 17921 [2024-11-18 19:57:07,191 INFO L226 Difference]: Without dead ends: 11799 [2024-11-18 19:57:07,209 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:57:07,209 INFO L432 NwaCegarLoop]: 1091 mSDtfsCounter, 551 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 1619 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:57:07,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 1619 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:57:07,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11799 states. [2024-11-18 19:57:07,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11799 to 6797. [2024-11-18 19:57:07,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6797 states, 5520 states have (on average 1.5333333333333334) internal successors, (8464), 5548 states have internal predecessors, (8464), 1228 states have call successors, (1228), 48 states have call predecessors, (1228), 48 states have return successors, (1228), 1200 states have call predecessors, (1228), 1228 states have call successors, (1228) [2024-11-18 19:57:07,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6797 states to 6797 states and 10920 transitions. [2024-11-18 19:57:07,874 INFO L78 Accepts]: Start accepts. Automaton has 6797 states and 10920 transitions. Word has length 631 [2024-11-18 19:57:07,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:57:07,875 INFO L471 AbstractCegarLoop]: Abstraction has 6797 states and 10920 transitions. [2024-11-18 19:57:07,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-18 19:57:07,876 INFO L276 IsEmpty]: Start isEmpty. Operand 6797 states and 10920 transitions. [2024-11-18 19:57:07,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2024-11-18 19:57:07,886 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:57:07,886 INFO L215 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:57:07,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 19:57:07,886 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:57:07,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:57:07,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1859443445, now seen corresponding path program 1 times [2024-11-18 19:57:07,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:57:07,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611039311] [2024-11-18 19:57:07,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:57:07,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:57:07,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:57:08,942 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2024-11-18 19:57:08,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:57:08,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611039311] [2024-11-18 19:57:08,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611039311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:57:08,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:57:08,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 19:57:08,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492388242] [2024-11-18 19:57:08,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:57:08,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 19:57:08,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:57:08,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 19:57:08,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-18 19:57:08,945 INFO L87 Difference]: Start difference. First operand 6797 states and 10920 transitions. Second operand has 10 states, 10 states have (on average 14.9) internal successors, (149), 10 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-18 19:57:10,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:57:10,949 INFO L93 Difference]: Finished difference Result 30237 states and 48367 transitions. [2024-11-18 19:57:10,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-18 19:57:10,955 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.9) internal successors, (149), 10 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) Word has length 631 [2024-11-18 19:57:10,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:57:11,035 INFO L225 Difference]: With dead ends: 30237 [2024-11-18 19:57:11,036 INFO L226 Difference]: Without dead ends: 23443 [2024-11-18 19:57:11,058 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2024-11-18 19:57:11,060 INFO L432 NwaCegarLoop]: 614 mSDtfsCounter, 1564 mSDsluCounter, 3516 mSDsCounter, 0 mSdLazyCounter, 1114 mSolverCounterSat, 347 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1564 SdHoareTripleChecker+Valid, 4130 SdHoareTripleChecker+Invalid, 1461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 347 IncrementalHoareTripleChecker+Valid, 1114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-18 19:57:11,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1564 Valid, 4130 Invalid, 1461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [347 Valid, 1114 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-18 19:57:11,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23443 states. [2024-11-18 19:57:11,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23443 to 18193. [2024-11-18 19:57:11,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18193 states, 15412 states have (on average 1.5522969114975345) internal successors, (23924), 15504 states have internal predecessors, (23924), 2652 states have call successors, (2652), 128 states have call predecessors, (2652), 128 states have return successors, (2652), 2560 states have call predecessors, (2652), 2652 states have call successors, (2652) [2024-11-18 19:57:12,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18193 states to 18193 states and 29228 transitions. [2024-11-18 19:57:12,054 INFO L78 Accepts]: Start accepts. Automaton has 18193 states and 29228 transitions. Word has length 631 [2024-11-18 19:57:12,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:57:12,055 INFO L471 AbstractCegarLoop]: Abstraction has 18193 states and 29228 transitions. [2024-11-18 19:57:12,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.9) internal successors, (149), 10 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-18 19:57:12,056 INFO L276 IsEmpty]: Start isEmpty. Operand 18193 states and 29228 transitions. [2024-11-18 19:57:12,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2024-11-18 19:57:12,085 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:57:12,086 INFO L215 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:57:12,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 19:57:12,086 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:57:12,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:57:12,088 INFO L85 PathProgramCache]: Analyzing trace with hash -431512441, now seen corresponding path program 1 times [2024-11-18 19:57:12,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:57:12,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144269258] [2024-11-18 19:57:12,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:57:12,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:57:12,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:57:12,794 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2024-11-18 19:57:12,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:57:12,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144269258] [2024-11-18 19:57:12,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144269258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:57:12,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:57:12,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 19:57:12,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063930206] [2024-11-18 19:57:12,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:57:12,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 19:57:12,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:57:12,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 19:57:12,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 19:57:12,797 INFO L87 Difference]: Start difference. First operand 18193 states and 29228 transitions. Second operand has 6 states, 6 states have (on average 24.833333333333332) internal successors, (149), 6 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-18 19:57:13,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:57:13,959 INFO L93 Difference]: Finished difference Result 36542 states and 58625 transitions. [2024-11-18 19:57:13,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 19:57:13,960 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.833333333333332) internal successors, (149), 6 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) Word has length 631 [2024-11-18 19:57:13,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:57:14,015 INFO L225 Difference]: With dead ends: 36542 [2024-11-18 19:57:14,016 INFO L226 Difference]: Without dead ends: 18352 [2024-11-18 19:57:14,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 19:57:14,062 INFO L432 NwaCegarLoop]: 608 mSDtfsCounter, 992 mSDsluCounter, 1931 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 2539 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 19:57:14,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [992 Valid, 2539 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 19:57:14,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18352 states. [2024-11-18 19:57:14,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18352 to 18316. [2024-11-18 19:57:14,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18316 states, 15484 states have (on average 1.54766210281581) internal successors, (23964), 15577 states have internal predecessors, (23964), 2685 states have call successors, (2685), 146 states have call predecessors, (2685), 146 states have return successors, (2685), 2592 states have call predecessors, (2685), 2685 states have call successors, (2685) [2024-11-18 19:57:14,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18316 states to 18316 states and 29334 transitions. [2024-11-18 19:57:14,882 INFO L78 Accepts]: Start accepts. Automaton has 18316 states and 29334 transitions. Word has length 631 [2024-11-18 19:57:14,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:57:14,883 INFO L471 AbstractCegarLoop]: Abstraction has 18316 states and 29334 transitions. [2024-11-18 19:57:14,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.833333333333332) internal successors, (149), 6 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-18 19:57:14,884 INFO L276 IsEmpty]: Start isEmpty. Operand 18316 states and 29334 transitions. [2024-11-18 19:57:14,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2024-11-18 19:57:14,903 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:57:14,903 INFO L215 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:57:14,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 19:57:14,903 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:57:14,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:57:14,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1460871739, now seen corresponding path program 1 times [2024-11-18 19:57:14,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:57:14,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743596389] [2024-11-18 19:57:14,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:57:14,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:57:14,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:57:15,464 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2024-11-18 19:57:15,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:57:15,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743596389] [2024-11-18 19:57:15,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743596389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:57:15,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:57:15,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 19:57:15,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268007759] [2024-11-18 19:57:15,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:57:15,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 19:57:15,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:57:15,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 19:57:15,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:57:15,468 INFO L87 Difference]: Start difference. First operand 18316 states and 29334 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-18 19:57:16,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:57:16,643 INFO L93 Difference]: Finished difference Result 47914 states and 76741 transitions. [2024-11-18 19:57:16,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:57:16,644 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) Word has length 631 [2024-11-18 19:57:16,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:57:16,734 INFO L225 Difference]: With dead ends: 47914 [2024-11-18 19:57:16,735 INFO L226 Difference]: Without dead ends: 29660 [2024-11-18 19:57:16,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:57:16,774 INFO L432 NwaCegarLoop]: 729 mSDtfsCounter, 609 mSDsluCounter, 1465 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 2194 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 19:57:16,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [609 Valid, 2194 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 19:57:16,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29660 states. [2024-11-18 19:57:17,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29660 to 20284. [2024-11-18 19:57:17,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20284 states, 17452 states have (on average 1.5713958285583314) internal successors, (27424), 17545 states have internal predecessors, (27424), 2685 states have call successors, (2685), 146 states have call predecessors, (2685), 146 states have return successors, (2685), 2592 states have call predecessors, (2685), 2685 states have call successors, (2685) [2024-11-18 19:57:18,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20284 states to 20284 states and 32794 transitions. [2024-11-18 19:57:18,039 INFO L78 Accepts]: Start accepts. Automaton has 20284 states and 32794 transitions. Word has length 631 [2024-11-18 19:57:18,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:57:18,040 INFO L471 AbstractCegarLoop]: Abstraction has 20284 states and 32794 transitions. [2024-11-18 19:57:18,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-18 19:57:18,041 INFO L276 IsEmpty]: Start isEmpty. Operand 20284 states and 32794 transitions. [2024-11-18 19:57:18,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2024-11-18 19:57:18,063 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:57:18,063 INFO L215 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:57:18,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 19:57:18,064 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:57:18,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:57:18,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1913836343, now seen corresponding path program 1 times [2024-11-18 19:57:18,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:57:18,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103631676] [2024-11-18 19:57:18,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:57:18,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:57:18,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:57:18,535 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2024-11-18 19:57:18,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:57:18,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103631676] [2024-11-18 19:57:18,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103631676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:57:18,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:57:18,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 19:57:18,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573327439] [2024-11-18 19:57:18,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:57:18,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 19:57:18,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:57:18,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 19:57:18,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 19:57:18,538 INFO L87 Difference]: Start difference. First operand 20284 states and 32794 transitions. Second operand has 6 states, 6 states have (on average 24.833333333333332) internal successors, (149), 6 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-18 19:57:19,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:57:19,732 INFO L93 Difference]: Finished difference Result 57704 states and 92980 transitions. [2024-11-18 19:57:19,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:57:19,733 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.833333333333332) internal successors, (149), 6 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) Word has length 631 [2024-11-18 19:57:19,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:57:19,833 INFO L225 Difference]: With dead ends: 57704 [2024-11-18 19:57:19,833 INFO L226 Difference]: Without dead ends: 37482 [2024-11-18 19:57:19,872 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 19:57:19,874 INFO L432 NwaCegarLoop]: 614 mSDtfsCounter, 353 mSDsluCounter, 1868 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 2482 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 19:57:19,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 2482 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 19:57:19,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37482 states. [2024-11-18 19:57:21,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37482 to 30732. [2024-11-18 19:57:21,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30732 states, 26412 states have (on average 1.562925942753294) internal successors, (41280), 26569 states have internal predecessors, (41280), 4109 states have call successors, (4109), 210 states have call predecessors, (4109), 210 states have return successors, (4109), 3952 states have call predecessors, (4109), 4109 states have call successors, (4109) [2024-11-18 19:57:21,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30732 states to 30732 states and 49498 transitions. [2024-11-18 19:57:21,601 INFO L78 Accepts]: Start accepts. Automaton has 30732 states and 49498 transitions. Word has length 631 [2024-11-18 19:57:21,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:57:21,602 INFO L471 AbstractCegarLoop]: Abstraction has 30732 states and 49498 transitions. [2024-11-18 19:57:21,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.833333333333332) internal successors, (149), 6 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-18 19:57:21,603 INFO L276 IsEmpty]: Start isEmpty. Operand 30732 states and 49498 transitions. [2024-11-18 19:57:21,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2024-11-18 19:57:21,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:57:21,632 INFO L215 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:57:21,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 19:57:21,633 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:57:21,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:57:21,633 INFO L85 PathProgramCache]: Analyzing trace with hash -485905339, now seen corresponding path program 1 times [2024-11-18 19:57:21,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:57:21,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958221267] [2024-11-18 19:57:21,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:57:21,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:57:21,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:57:22,110 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2024-11-18 19:57:22,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:57:22,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958221267] [2024-11-18 19:57:22,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958221267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:57:22,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:57:22,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:57:22,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484391944] [2024-11-18 19:57:22,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:57:22,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:57:22,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:57:22,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:57:22,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:57:22,114 INFO L87 Difference]: Start difference. First operand 30732 states and 49498 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-18 19:57:23,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:57:23,634 INFO L93 Difference]: Finished difference Result 61530 states and 98999 transitions. [2024-11-18 19:57:23,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:57:23,634 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) Word has length 631 [2024-11-18 19:57:23,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:57:23,798 INFO L225 Difference]: With dead ends: 61530 [2024-11-18 19:57:23,798 INFO L226 Difference]: Without dead ends: 30860 [2024-11-18 19:57:23,915 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:57:23,915 INFO L432 NwaCegarLoop]: 631 mSDtfsCounter, 238 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 1007 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 19:57:23,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 1007 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 19:57:23,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30860 states. [2024-11-18 19:57:26,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30860 to 30700. [2024-11-18 19:57:26,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30700 states, 26428 states have (on average 1.5577417890116543) internal successors, (41168), 26585 states have internal predecessors, (41168), 4045 states have call successors, (4045), 226 states have call predecessors, (4045), 226 states have return successors, (4045), 3888 states have call predecessors, (4045), 4045 states have call successors, (4045) [2024-11-18 19:57:26,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30700 states to 30700 states and 49258 transitions. [2024-11-18 19:57:26,274 INFO L78 Accepts]: Start accepts. Automaton has 30700 states and 49258 transitions. Word has length 631 [2024-11-18 19:57:26,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:57:26,275 INFO L471 AbstractCegarLoop]: Abstraction has 30700 states and 49258 transitions. [2024-11-18 19:57:26,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-18 19:57:26,276 INFO L276 IsEmpty]: Start isEmpty. Operand 30700 states and 49258 transitions. [2024-11-18 19:57:26,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2024-11-18 19:57:26,309 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:57:26,309 INFO L215 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:57:26,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 19:57:26,309 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:57:26,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:57:26,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1515264637, now seen corresponding path program 1 times [2024-11-18 19:57:26,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:57:26,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981937656] [2024-11-18 19:57:26,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:57:26,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:57:26,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:57:27,152 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2024-11-18 19:57:27,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:57:27,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981937656] [2024-11-18 19:57:27,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981937656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:57:27,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:57:27,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 19:57:27,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971992397] [2024-11-18 19:57:27,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:57:27,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 19:57:27,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:57:27,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 19:57:27,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 19:57:27,158 INFO L87 Difference]: Start difference. First operand 30700 states and 49258 transitions. Second operand has 6 states, 6 states have (on average 24.833333333333332) internal successors, (149), 6 states have internal predecessors, (149), 2 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 2 states have call predecessors, (97), 2 states have call successors, (97) [2024-11-18 19:57:31,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:57:31,361 INFO L93 Difference]: Finished difference Result 109602 states and 175837 transitions. [2024-11-18 19:57:31,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 19:57:31,362 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.833333333333332) internal successors, (149), 6 states have internal predecessors, (149), 2 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 2 states have call predecessors, (97), 2 states have call successors, (97) Word has length 631 [2024-11-18 19:57:31,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:57:31,668 INFO L225 Difference]: With dead ends: 109602 [2024-11-18 19:57:31,669 INFO L226 Difference]: Without dead ends: 78964 [2024-11-18 19:57:31,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-18 19:57:31,748 INFO L432 NwaCegarLoop]: 885 mSDtfsCounter, 1409 mSDsluCounter, 1806 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1409 SdHoareTripleChecker+Valid, 2691 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 19:57:31,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1409 Valid, 2691 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 19:57:31,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78964 states. [2024-11-18 19:57:35,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78964 to 64976. [2024-11-18 19:57:35,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64976 states, 56468 states have (on average 1.5693844301197137) internal successors, (88620), 56781 states have internal predecessors, (88620), 8057 states have call successors, (8057), 450 states have call predecessors, (8057), 450 states have return successors, (8057), 7744 states have call predecessors, (8057), 8057 states have call successors, (8057) [2024-11-18 19:57:35,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64976 states to 64976 states and 104734 transitions. [2024-11-18 19:57:35,427 INFO L78 Accepts]: Start accepts. Automaton has 64976 states and 104734 transitions. Word has length 631 [2024-11-18 19:57:35,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:57:35,428 INFO L471 AbstractCegarLoop]: Abstraction has 64976 states and 104734 transitions. [2024-11-18 19:57:35,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.833333333333332) internal successors, (149), 6 states have internal predecessors, (149), 2 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 2 states have call predecessors, (97), 2 states have call successors, (97) [2024-11-18 19:57:35,429 INFO L276 IsEmpty]: Start isEmpty. Operand 64976 states and 104734 transitions. [2024-11-18 19:57:35,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2024-11-18 19:57:35,471 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:57:35,472 INFO L215 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:57:35,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 19:57:35,472 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:57:35,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:57:35,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1220631993, now seen corresponding path program 1 times [2024-11-18 19:57:35,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:57:35,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911204026] [2024-11-18 19:57:35,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:57:35,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:57:35,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:57:35,964 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2024-11-18 19:57:35,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:57:35,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911204026] [2024-11-18 19:57:35,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911204026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:57:35,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:57:35,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:57:35,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453255131] [2024-11-18 19:57:35,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:57:35,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:57:35,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:57:35,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:57:35,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:57:35,967 INFO L87 Difference]: Start difference. First operand 64976 states and 104734 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-18 19:57:39,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:57:39,133 INFO L93 Difference]: Finished difference Result 143196 states and 230772 transitions. [2024-11-18 19:57:39,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:57:39,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) Word has length 631 [2024-11-18 19:57:39,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:57:39,614 INFO L225 Difference]: With dead ends: 143196 [2024-11-18 19:57:39,614 INFO L226 Difference]: Without dead ends: 78282 [2024-11-18 19:57:39,697 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:57:39,700 INFO L432 NwaCegarLoop]: 728 mSDtfsCounter, 378 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 1282 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:57:39,701 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 1282 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:57:39,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78282 states. [2024-11-18 19:57:43,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78282 to 78280. [2024-11-18 19:57:43,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78280 states, 67648 states have (on average 1.564569536423841) internal successors, (105840), 68021 states have internal predecessors, (105840), 10069 states have call successors, (10069), 562 states have call predecessors, (10069), 562 states have return successors, (10069), 9696 states have call predecessors, (10069), 10069 states have call successors, (10069) [2024-11-18 19:57:44,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78280 states to 78280 states and 125978 transitions. [2024-11-18 19:57:44,146 INFO L78 Accepts]: Start accepts. Automaton has 78280 states and 125978 transitions. Word has length 631 [2024-11-18 19:57:44,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:57:44,148 INFO L471 AbstractCegarLoop]: Abstraction has 78280 states and 125978 transitions. [2024-11-18 19:57:44,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97) [2024-11-18 19:57:44,148 INFO L276 IsEmpty]: Start isEmpty. Operand 78280 states and 125978 transitions. [2024-11-18 19:57:44,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2024-11-18 19:57:44,188 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:57:44,188 INFO L215 NwaCegarLoop]: trace histogram [97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:57:44,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 19:57:44,189 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:57:44,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:57:44,190 INFO L85 PathProgramCache]: Analyzing trace with hash 2015241987, now seen corresponding path program 1 times [2024-11-18 19:57:44,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:57:44,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047573738] [2024-11-18 19:57:44,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:57:44,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:57:44,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:57:45,248 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2024-11-18 19:57:45,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:57:45,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047573738] [2024-11-18 19:57:45,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047573738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:57:45,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:57:45,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 19:57:45,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241900798] [2024-11-18 19:57:45,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:57:45,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 19:57:45,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:57:45,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 19:57:45,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:57:45,256 INFO L87 Difference]: Start difference. First operand 78280 states and 125978 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 1 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 1 states have call predecessors, (97), 1 states have call successors, (97)