./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-73.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-73.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 3217b1cd2b9383f0f9bac33b6f497ef2adc5098c2b6d1b194e687fe0da534024 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 12:04:43,217 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 12:04:43,276 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 12:04:43,279 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 12:04:43,280 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 12:04:43,303 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 12:04:43,307 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 12:04:43,307 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 12:04:43,308 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 12:04:43,308 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 12:04:43,308 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 12:04:43,309 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 12:04:43,309 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 12:04:43,309 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 12:04:43,310 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 12:04:43,314 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 12:04:43,314 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 12:04:43,315 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 12:04:43,315 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 12:04:43,315 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 12:04:43,315 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 12:04:43,316 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 12:04:43,316 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 12:04:43,316 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 12:04:43,316 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 12:04:43,317 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 12:04:43,317 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 12:04:43,317 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 12:04:43,317 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 12:04:43,317 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 12:04:43,318 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 12:04:43,318 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 12:04:43,318 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:04:43,318 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 12:04:43,318 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 12:04:43,319 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 12:04:43,319 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 12:04:43,319 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 12:04:43,319 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 12:04:43,323 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 12:04:43,324 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 12:04:43,324 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 12:04:43,324 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3217b1cd2b9383f0f9bac33b6f497ef2adc5098c2b6d1b194e687fe0da534024 [2024-11-22 12:04:43,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 12:04:43,558 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 12:04:43,561 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 12:04:43,562 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 12:04:43,562 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 12:04:43,563 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-73.i [2024-11-22 12:04:44,950 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 12:04:45,183 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 12:04:45,184 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-73.i [2024-11-22 12:04:45,199 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b7b9ac3f/09b2f6adb02f4c6297ae1d97f4121c3a/FLAG364edf709 [2024-11-22 12:04:45,211 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b7b9ac3f/09b2f6adb02f4c6297ae1d97f4121c3a [2024-11-22 12:04:45,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 12:04:45,214 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 12:04:45,215 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 12:04:45,216 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 12:04:45,220 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 12:04:45,221 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:04:45" (1/1) ... [2024-11-22 12:04:45,221 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c95ab66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:04:45, skipping insertion in model container [2024-11-22 12:04:45,222 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:04:45" (1/1) ... [2024-11-22 12:04:45,272 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 12:04:45,414 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_operatoramount_amount500_file-73.i[916,929] [2024-11-22 12:04:45,633 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:04:45,653 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 12:04:45,669 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_operatoramount_amount500_file-73.i[916,929] [2024-11-22 12:04:45,828 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:04:45,851 INFO L204 MainTranslator]: Completed translation [2024-11-22 12:04:45,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:04:45 WrapperNode [2024-11-22 12:04:45,852 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 12:04:45,853 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 12:04:45,853 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 12:04:45,853 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 12:04:45,859 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:04:45" (1/1) ... [2024-11-22 12:04:45,879 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:04:45" (1/1) ... [2024-11-22 12:04:45,977 INFO L138 Inliner]: procedures = 26, calls = 102, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 790 [2024-11-22 12:04:45,977 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 12:04:45,978 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 12:04:45,978 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 12:04:45,978 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 12:04:45,988 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:04:45" (1/1) ... [2024-11-22 12:04:45,988 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:04:45" (1/1) ... [2024-11-22 12:04:46,006 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:04:45" (1/1) ... [2024-11-22 12:04:46,066 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]. [2024-11-22 12:04:46,066 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:04:45" (1/1) ... [2024-11-22 12:04:46,066 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:04:45" (1/1) ... [2024-11-22 12:04:46,102 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:04:45" (1/1) ... [2024-11-22 12:04:46,112 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:04:45" (1/1) ... [2024-11-22 12:04:46,134 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:04:45" (1/1) ... [2024-11-22 12:04:46,148 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:04:45" (1/1) ... [2024-11-22 12:04:46,159 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 12:04:46,160 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 12:04:46,160 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 12:04:46,160 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 12:04:46,161 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:04:45" (1/1) ... [2024-11-22 12:04:46,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:04:46,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:04:46,199 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) [2024-11-22 12:04:46,200 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 [2024-11-22 12:04:46,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 12:04:46,255 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 12:04:46,255 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 12:04:46,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 12:04:46,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 12:04:46,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 12:04:46,363 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 12:04:46,366 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 12:04:47,426 INFO L? ?]: Removed 94 outVars from TransFormulas that were not future-live. [2024-11-22 12:04:47,427 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 12:04:47,445 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 12:04:47,447 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 12:04:47,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:04:47 BoogieIcfgContainer [2024-11-22 12:04:47,447 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 12:04:47,449 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 12:04:47,449 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 12:04:47,451 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 12:04:47,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:04:45" (1/3) ... [2024-11-22 12:04:47,452 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d01882d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:04:47, skipping insertion in model container [2024-11-22 12:04:47,453 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:04:45" (2/3) ... [2024-11-22 12:04:47,453 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d01882d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:04:47, skipping insertion in model container [2024-11-22 12:04:47,453 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:04:47" (3/3) ... [2024-11-22 12:04:47,454 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-73.i [2024-11-22 12:04:47,466 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 12:04:47,466 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 12:04:47,530 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 12:04:47,537 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;@5ac37b09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 12:04:47,538 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 12:04:47,543 INFO L276 IsEmpty]: Start isEmpty. Operand has 314 states, 222 states have (on average 1.5045045045045045) internal successors, (334), 223 states have internal predecessors, (334), 89 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-22 12:04:47,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2024-11-22 12:04:47,579 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:04:47,580 INFO L215 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:04:47,581 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:04:47,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:04:47,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1534762400, now seen corresponding path program 1 times [2024-11-22 12:04:47,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:04:47,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655355854] [2024-11-22 12:04:47,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:04:47,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:04:47,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:04:48,169 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 15488 trivial. 0 not checked. [2024-11-22 12:04:48,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:04:48,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655355854] [2024-11-22 12:04:48,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655355854] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:04:48,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410654916] [2024-11-22 12:04:48,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:04:48,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:04:48,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:04:48,179 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) [2024-11-22 12:04:48,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 12:04:48,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:04:48,581 INFO L255 TraceCheckSpWp]: Trace formula consists of 1419 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 12:04:48,603 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:04:48,689 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 15488 trivial. 0 not checked. [2024-11-22 12:04:48,689 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:04:48,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410654916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:04:48,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:04:48,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 12:04:48,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155083713] [2024-11-22 12:04:48,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:04:48,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 12:04:48,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:04:48,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 12:04:48,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 12:04:48,722 INFO L87 Difference]: Start difference. First operand has 314 states, 222 states have (on average 1.5045045045045045) internal successors, (334), 223 states have internal predecessors, (334), 89 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) Second operand has 2 states, 2 states have (on average 75.5) internal successors, (151), 2 states have internal predecessors, (151), 2 states have call successors, (89), 2 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 2 states have call successors, (89) [2024-11-22 12:04:48,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:04:48,774 INFO L93 Difference]: Finished difference Result 619 states and 1103 transitions. [2024-11-22 12:04:48,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 12:04:48,776 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 75.5) internal successors, (151), 2 states have internal predecessors, (151), 2 states have call successors, (89), 2 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 2 states have call successors, (89) Word has length 591 [2024-11-22 12:04:48,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:04:48,786 INFO L225 Difference]: With dead ends: 619 [2024-11-22 12:04:48,786 INFO L226 Difference]: Without dead ends: 308 [2024-11-22 12:04:48,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 592 GetRequests, 592 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 12:04:48,793 INFO L432 NwaCegarLoop]: 500 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, 500 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 [2024-11-22 12:04:48,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:04:48,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2024-11-22 12:04:48,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2024-11-22 12:04:48,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 217 states have (on average 1.4838709677419355) internal successors, (322), 217 states have internal predecessors, (322), 89 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-22 12:04:48,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 500 transitions. [2024-11-22 12:04:48,870 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 500 transitions. Word has length 591 [2024-11-22 12:04:48,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:04:48,871 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 500 transitions. [2024-11-22 12:04:48,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 75.5) internal successors, (151), 2 states have internal predecessors, (151), 2 states have call successors, (89), 2 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 2 states have call successors, (89) [2024-11-22 12:04:48,872 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 500 transitions. [2024-11-22 12:04:48,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2024-11-22 12:04:48,879 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:04:48,880 INFO L215 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:04:48,889 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 12:04:49,080 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 [2024-11-22 12:04:49,081 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:04:49,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:04:49,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1041151398, now seen corresponding path program 1 times [2024-11-22 12:04:49,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:04:49,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28219954] [2024-11-22 12:04:49,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:04:49,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:04:49,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:04:49,547 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked. [2024-11-22 12:04:49,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:04:49,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28219954] [2024-11-22 12:04:49,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28219954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:04:49,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:04:49,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 12:04:49,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009118702] [2024-11-22 12:04:49,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:04:49,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 12:04:49,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:04:49,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 12:04:49,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:04:49,554 INFO L87 Difference]: Start difference. First operand 308 states and 500 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, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-11-22 12:04:49,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:04:49,651 INFO L93 Difference]: Finished difference Result 890 states and 1446 transitions. [2024-11-22 12:04:49,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 12:04:49,652 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, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) Word has length 591 [2024-11-22 12:04:49,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:04:49,659 INFO L225 Difference]: With dead ends: 890 [2024-11-22 12:04:49,661 INFO L226 Difference]: Without dead ends: 585 [2024-11-22 12:04:49,662 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 [2024-11-22 12:04:49,663 INFO L432 NwaCegarLoop]: 720 mSDtfsCounter, 446 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:04:49,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 1208 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:04:49,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2024-11-22 12:04:49,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 582. [2024-11-22 12:04:49,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 405 states have (on average 1.4765432098765432) internal successors, (598), 406 states have internal predecessors, (598), 174 states have call successors, (174), 2 states have call predecessors, (174), 2 states have return successors, (174), 173 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-22 12:04:49,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 946 transitions. [2024-11-22 12:04:49,739 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 946 transitions. Word has length 591 [2024-11-22 12:04:49,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:04:49,743 INFO L471 AbstractCegarLoop]: Abstraction has 582 states and 946 transitions. [2024-11-22 12:04:49,744 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, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-11-22 12:04:49,744 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 946 transitions. [2024-11-22 12:04:49,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2024-11-22 12:04:49,754 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:04:49,755 INFO L215 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:04:49,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 12:04:49,755 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:04:49,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:04:49,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1342773340, now seen corresponding path program 1 times [2024-11-22 12:04:49,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:04:49,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565306910] [2024-11-22 12:04:49,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:04:49,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:04:49,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:04:50,102 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked. [2024-11-22 12:04:50,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:04:50,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565306910] [2024-11-22 12:04:50,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565306910] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:04:50,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:04:50,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 12:04:50,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357514915] [2024-11-22 12:04:50,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:04:50,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 12:04:50,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:04:50,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 12:04:50,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:04:50,106 INFO L87 Difference]: Start difference. First operand 582 states and 946 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, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-11-22 12:04:50,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:04:50,747 INFO L93 Difference]: Finished difference Result 1724 states and 2806 transitions. [2024-11-22 12:04:50,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 12:04:50,750 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, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) Word has length 591 [2024-11-22 12:04:50,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:04:50,762 INFO L225 Difference]: With dead ends: 1724 [2024-11-22 12:04:50,762 INFO L226 Difference]: Without dead ends: 1145 [2024-11-22 12:04:50,764 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 [2024-11-22 12:04:50,765 INFO L432 NwaCegarLoop]: 508 mSDtfsCounter, 473 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 473 SdHoareTripleChecker+Valid, 985 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 12:04:50,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [473 Valid, 985 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 12:04:50,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1145 states. [2024-11-22 12:04:50,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1145 to 1143. [2024-11-22 12:04:50,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1143 states, 790 states have (on average 1.4632911392405064) internal successors, (1156), 792 states have internal predecessors, (1156), 348 states have call successors, (348), 4 states have call predecessors, (348), 4 states have return successors, (348), 346 states have call predecessors, (348), 348 states have call successors, (348) [2024-11-22 12:04:50,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1143 states to 1143 states and 1852 transitions. [2024-11-22 12:04:50,889 INFO L78 Accepts]: Start accepts. Automaton has 1143 states and 1852 transitions. Word has length 591 [2024-11-22 12:04:50,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:04:50,890 INFO L471 AbstractCegarLoop]: Abstraction has 1143 states and 1852 transitions. [2024-11-22 12:04:50,891 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, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-11-22 12:04:50,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1143 states and 1852 transitions. [2024-11-22 12:04:50,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2024-11-22 12:04:50,898 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:04:50,898 INFO L215 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:04:50,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 12:04:50,899 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:04:50,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:04:50,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1786674014, now seen corresponding path program 1 times [2024-11-22 12:04:50,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:04:50,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240225606] [2024-11-22 12:04:50,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:04:50,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:04:51,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:04:52,622 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked. [2024-11-22 12:04:52,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:04:52,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240225606] [2024-11-22 12:04:52,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240225606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:04:52,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:04:52,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:04:52,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509237149] [2024-11-22 12:04:52,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:04:52,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:04:52,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:04:52,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:04:52,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:04:52,626 INFO L87 Difference]: Start difference. First operand 1143 states and 1852 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-11-22 12:04:53,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:04:53,066 INFO L93 Difference]: Finished difference Result 1706 states and 2759 transitions. [2024-11-22 12:04:53,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 12:04:53,068 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) Word has length 591 [2024-11-22 12:04:53,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:04:53,075 INFO L225 Difference]: With dead ends: 1706 [2024-11-22 12:04:53,075 INFO L226 Difference]: Without dead ends: 566 [2024-11-22 12:04:53,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:04:53,080 INFO L432 NwaCegarLoop]: 466 mSDtfsCounter, 529 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:04:53,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [529 Valid, 466 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:04:53,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2024-11-22 12:04:53,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 566. [2024-11-22 12:04:53,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 389 states have (on average 1.4395886889460154) internal successors, (560), 390 states have internal predecessors, (560), 174 states have call successors, (174), 2 states have call predecessors, (174), 2 states have return successors, (174), 173 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-22 12:04:53,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 908 transitions. [2024-11-22 12:04:53,148 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 908 transitions. Word has length 591 [2024-11-22 12:04:53,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:04:53,150 INFO L471 AbstractCegarLoop]: Abstraction has 566 states and 908 transitions. [2024-11-22 12:04:53,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-11-22 12:04:53,150 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 908 transitions. [2024-11-22 12:04:53,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2024-11-22 12:04:53,154 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:04:53,154 INFO L215 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:04:53,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 12:04:53,155 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:04:53,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:04:53,156 INFO L85 PathProgramCache]: Analyzing trace with hash -599835492, now seen corresponding path program 1 times [2024-11-22 12:04:53,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:04:53,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879555679] [2024-11-22 12:04:53,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:04:53,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:04:53,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:04:55,137 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked. [2024-11-22 12:04:55,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:04:55,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879555679] [2024-11-22 12:04:55,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879555679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:04:55,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:04:55,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:04:55,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195893236] [2024-11-22 12:04:55,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:04:55,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:04:55,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:04:55,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:04:55,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:04:55,143 INFO L87 Difference]: Start difference. First operand 566 states and 908 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, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-11-22 12:04:55,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:04:55,555 INFO L93 Difference]: Finished difference Result 1749 states and 2777 transitions. [2024-11-22 12:04:55,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:04:55,557 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, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) Word has length 591 [2024-11-22 12:04:55,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:04:55,563 INFO L225 Difference]: With dead ends: 1749 [2024-11-22 12:04:55,563 INFO L226 Difference]: Without dead ends: 1186 [2024-11-22 12:04:55,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:04:55,566 INFO L432 NwaCegarLoop]: 559 mSDtfsCounter, 911 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 911 SdHoareTripleChecker+Valid, 1342 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:04:55,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [911 Valid, 1342 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:04:55,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1186 states. [2024-11-22 12:04:55,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1186 to 706. [2024-11-22 12:04:55,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 527 states have (on average 1.4876660341555976) internal successors, (784), 528 states have internal predecessors, (784), 174 states have call successors, (174), 4 states have call predecessors, (174), 4 states have return successors, (174), 173 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-22 12:04:55,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 1132 transitions. [2024-11-22 12:04:55,626 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 1132 transitions. Word has length 591 [2024-11-22 12:04:55,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:04:55,627 INFO L471 AbstractCegarLoop]: Abstraction has 706 states and 1132 transitions. [2024-11-22 12:04:55,627 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, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-11-22 12:04:55,627 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 1132 transitions. [2024-11-22 12:04:55,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2024-11-22 12:04:55,630 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:04:55,630 INFO L215 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:04:55,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 12:04:55,631 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:04:55,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:04:55,632 INFO L85 PathProgramCache]: Analyzing trace with hash -459286882, now seen corresponding path program 1 times [2024-11-22 12:04:55,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:04:55,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494025499] [2024-11-22 12:04:55,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:04:55,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:04:56,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:04:56,633 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked. [2024-11-22 12:04:56,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:04:56,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494025499] [2024-11-22 12:04:56,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494025499] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:04:56,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:04:56,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:04:56,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835738723] [2024-11-22 12:04:56,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:04:56,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:04:56,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:04:56,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:04:56,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:04:56,636 INFO L87 Difference]: Start difference. First operand 706 states and 1132 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-11-22 12:04:56,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:04:56,794 INFO L93 Difference]: Finished difference Result 1409 states and 2261 transitions. [2024-11-22 12:04:56,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:04:56,795 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) Word has length 591 [2024-11-22 12:04:56,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:04:56,799 INFO L225 Difference]: With dead ends: 1409 [2024-11-22 12:04:56,799 INFO L226 Difference]: Without dead ends: 706 [2024-11-22 12:04:56,801 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:04:56,801 INFO L432 NwaCegarLoop]: 465 mSDtfsCounter, 269 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:04:56,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 929 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:04:56,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2024-11-22 12:04:56,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2024-11-22 12:04:56,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 527 states have (on average 1.4838709677419355) internal successors, (782), 528 states have internal predecessors, (782), 174 states have call successors, (174), 4 states have call predecessors, (174), 4 states have return successors, (174), 173 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-22 12:04:56,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 1130 transitions. [2024-11-22 12:04:56,847 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 1130 transitions. Word has length 591 [2024-11-22 12:04:56,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:04:56,848 INFO L471 AbstractCegarLoop]: Abstraction has 706 states and 1130 transitions. [2024-11-22 12:04:56,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-11-22 12:04:56,849 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 1130 transitions. [2024-11-22 12:04:56,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 594 [2024-11-22 12:04:56,851 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:04:56,852 INFO L215 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:04:56,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 12:04:56,852 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:04:56,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:04:56,853 INFO L85 PathProgramCache]: Analyzing trace with hash 984560433, now seen corresponding path program 1 times [2024-11-22 12:04:56,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:04:56,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454779186] [2024-11-22 12:04:56,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:04:56,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:04:57,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:04:58,406 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked. [2024-11-22 12:04:58,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:04:58,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454779186] [2024-11-22 12:04:58,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454779186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:04:58,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:04:58,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:04:58,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468330477] [2024-11-22 12:04:58,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:04:58,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:04:58,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:04:58,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:04:58,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:04:58,410 INFO L87 Difference]: Start difference. First operand 706 states and 1130 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-11-22 12:04:59,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:04:59,439 INFO L93 Difference]: Finished difference Result 2843 states and 4557 transitions. [2024-11-22 12:04:59,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:04:59,439 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) Word has length 593 [2024-11-22 12:04:59,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:04:59,449 INFO L225 Difference]: With dead ends: 2843 [2024-11-22 12:04:59,449 INFO L226 Difference]: Without dead ends: 2140 [2024-11-22 12:04:59,451 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:04:59,452 INFO L432 NwaCegarLoop]: 782 mSDtfsCounter, 789 mSDsluCounter, 1286 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 789 SdHoareTripleChecker+Valid, 2068 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-22 12:04:59,452 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [789 Valid, 2068 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-22 12:04:59,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2024-11-22 12:04:59,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 1595. [2024-11-22 12:04:59,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1595 states, 1238 states have (on average 1.5201938610662358) internal successors, (1882), 1240 states have internal predecessors, (1882), 348 states have call successors, (348), 8 states have call predecessors, (348), 8 states have return successors, (348), 346 states have call predecessors, (348), 348 states have call successors, (348) [2024-11-22 12:04:59,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1595 states to 1595 states and 2578 transitions. [2024-11-22 12:04:59,583 INFO L78 Accepts]: Start accepts. Automaton has 1595 states and 2578 transitions. Word has length 593 [2024-11-22 12:04:59,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:04:59,584 INFO L471 AbstractCegarLoop]: Abstraction has 1595 states and 2578 transitions. [2024-11-22 12:04:59,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-11-22 12:04:59,584 INFO L276 IsEmpty]: Start isEmpty. Operand 1595 states and 2578 transitions. [2024-11-22 12:04:59,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 594 [2024-11-22 12:04:59,588 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:04:59,588 INFO L215 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:04:59,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 12:04:59,588 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:04:59,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:04:59,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1012606629, now seen corresponding path program 1 times [2024-11-22 12:04:59,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:04:59,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347833578] [2024-11-22 12:04:59,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:04:59,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:05:00,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:05:01,770 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 36 proven. 228 refuted. 0 times theorem prover too weak. 15400 trivial. 0 not checked. [2024-11-22 12:05:01,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:05:01,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347833578] [2024-11-22 12:05:01,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347833578] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:05:01,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370290083] [2024-11-22 12:05:01,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:05:01,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:05:01,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:05:01,774 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:05:01,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 12:05:02,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:05:02,146 INFO L255 TraceCheckSpWp]: Trace formula consists of 1418 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-22 12:05:02,160 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:05:02,793 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 7920 proven. 132 refuted. 0 times theorem prover too weak. 7612 trivial. 0 not checked. [2024-11-22 12:05:02,793 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 12:05:03,355 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 132 proven. 132 refuted. 0 times theorem prover too weak. 15400 trivial. 0 not checked. [2024-11-22 12:05:03,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370290083] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 12:05:03,356 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 12:05:03,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 13 [2024-11-22 12:05:03,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604639064] [2024-11-22 12:05:03,356 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 12:05:03,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 12:05:03,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:05:03,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 12:05:03,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-22 12:05:03,360 INFO L87 Difference]: Start difference. First operand 1595 states and 2578 transitions. Second operand has 13 states, 12 states have (on average 22.416666666666668) internal successors, (269), 13 states have internal predecessors, (269), 5 states have call successors, (222), 2 states have call predecessors, (222), 4 states have return successors, (223), 4 states have call predecessors, (223), 5 states have call successors, (223) [2024-11-22 12:05:05,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:05:05,600 INFO L93 Difference]: Finished difference Result 4110 states and 6582 transitions. [2024-11-22 12:05:05,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-22 12:05:05,603 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 22.416666666666668) internal successors, (269), 13 states have internal predecessors, (269), 5 states have call successors, (222), 2 states have call predecessors, (222), 4 states have return successors, (223), 4 states have call predecessors, (223), 5 states have call successors, (223) Word has length 593 [2024-11-22 12:05:05,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:05:05,614 INFO L225 Difference]: With dead ends: 4110 [2024-11-22 12:05:05,614 INFO L226 Difference]: Without dead ends: 2518 [2024-11-22 12:05:05,618 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1221 GetRequests, 1182 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=429, Invalid=1131, Unknown=0, NotChecked=0, Total=1560 [2024-11-22 12:05:05,619 INFO L432 NwaCegarLoop]: 334 mSDtfsCounter, 2120 mSDsluCounter, 1562 mSDsCounter, 0 mSdLazyCounter, 1126 mSolverCounterSat, 1000 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2165 SdHoareTripleChecker+Valid, 1896 SdHoareTripleChecker+Invalid, 2126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1000 IncrementalHoareTripleChecker+Valid, 1126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-22 12:05:05,620 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2165 Valid, 1896 Invalid, 2126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1000 Valid, 1126 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-22 12:05:05,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2518 states. [2024-11-22 12:05:05,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2518 to 2386. [2024-11-22 12:05:05,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2386 states, 1927 states have (on average 1.5230928905033732) internal successors, (2935), 1929 states have internal predecessors, (2935), 437 states have call successors, (437), 21 states have call predecessors, (437), 21 states have return successors, (437), 435 states have call predecessors, (437), 437 states have call successors, (437) [2024-11-22 12:05:05,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2386 states to 2386 states and 3809 transitions. [2024-11-22 12:05:05,781 INFO L78 Accepts]: Start accepts. Automaton has 2386 states and 3809 transitions. Word has length 593 [2024-11-22 12:05:05,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:05:05,782 INFO L471 AbstractCegarLoop]: Abstraction has 2386 states and 3809 transitions. [2024-11-22 12:05:05,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 22.416666666666668) internal successors, (269), 13 states have internal predecessors, (269), 5 states have call successors, (222), 2 states have call predecessors, (222), 4 states have return successors, (223), 4 states have call predecessors, (223), 5 states have call successors, (223) [2024-11-22 12:05:05,782 INFO L276 IsEmpty]: Start isEmpty. Operand 2386 states and 3809 transitions. [2024-11-22 12:05:05,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2024-11-22 12:05:05,785 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:05:05,786 INFO L215 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:05:05,797 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 12:05:05,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-22 12:05:05,987 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:05:05,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:05:05,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1154312335, now seen corresponding path program 1 times [2024-11-22 12:05:05,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:05:05,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004182452] [2024-11-22 12:05:05,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:05:05,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:05:06,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:05:07,498 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked. [2024-11-22 12:05:07,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:05:07,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004182452] [2024-11-22 12:05:07,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004182452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:05:07,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:05:07,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:05:07,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870164175] [2024-11-22 12:05:07,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:05:07,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:05:07,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:05:07,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:05:07,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:05:07,501 INFO L87 Difference]: Start difference. First operand 2386 states and 3809 transitions. Second operand has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-11-22 12:05:07,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:05:07,849 INFO L93 Difference]: Finished difference Result 5762 states and 9175 transitions. [2024-11-22 12:05:07,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:05:07,850 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) Word has length 594 [2024-11-22 12:05:07,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:05:07,867 INFO L225 Difference]: With dead ends: 5762 [2024-11-22 12:05:07,868 INFO L226 Difference]: Without dead ends: 3810 [2024-11-22 12:05:07,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:05:07,876 INFO L432 NwaCegarLoop]: 704 mSDtfsCounter, 540 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 540 SdHoareTripleChecker+Valid, 1442 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:05:07,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [540 Valid, 1442 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:05:07,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3810 states. [2024-11-22 12:05:08,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3810 to 2466. [2024-11-22 12:05:08,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2466 states, 2007 states have (on average 1.5022421524663676) internal successors, (3015), 2009 states have internal predecessors, (3015), 437 states have call successors, (437), 21 states have call predecessors, (437), 21 states have return successors, (437), 435 states have call predecessors, (437), 437 states have call successors, (437) [2024-11-22 12:05:08,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2466 states to 2466 states and 3889 transitions. [2024-11-22 12:05:08,056 INFO L78 Accepts]: Start accepts. Automaton has 2466 states and 3889 transitions. Word has length 594 [2024-11-22 12:05:08,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:05:08,057 INFO L471 AbstractCegarLoop]: Abstraction has 2466 states and 3889 transitions. [2024-11-22 12:05:08,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-11-22 12:05:08,057 INFO L276 IsEmpty]: Start isEmpty. Operand 2466 states and 3889 transitions. [2024-11-22 12:05:08,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2024-11-22 12:05:08,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:05:08,060 INFO L215 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:05:08,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 12:05:08,060 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:05:08,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:05:08,061 INFO L85 PathProgramCache]: Analyzing trace with hash 773960367, now seen corresponding path program 1 times [2024-11-22 12:05:08,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:05:08,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701565626] [2024-11-22 12:05:08,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:05:08,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:05:10,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:05:11,133 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 228 proven. 36 refuted. 0 times theorem prover too weak. 15400 trivial. 0 not checked. [2024-11-22 12:05:11,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:05:11,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701565626] [2024-11-22 12:05:11,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701565626] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:05:11,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657234457] [2024-11-22 12:05:11,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:05:11,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:05:11,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:05:11,136 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:05:11,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 12:05:11,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:05:11,529 INFO L255 TraceCheckSpWp]: Trace formula consists of 1419 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-22 12:05:11,542 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:05:12,420 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 3888 proven. 36 refuted. 0 times theorem prover too weak. 11740 trivial. 0 not checked. [2024-11-22 12:05:12,420 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 12:05:13,030 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 228 proven. 36 refuted. 0 times theorem prover too weak. 15400 trivial. 0 not checked. [2024-11-22 12:05:13,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657234457] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 12:05:13,030 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 12:05:13,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 10] total 20 [2024-11-22 12:05:13,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001884493] [2024-11-22 12:05:13,031 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 12:05:13,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-22 12:05:13,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:05:13,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-22 12:05:13,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2024-11-22 12:05:13,034 INFO L87 Difference]: Start difference. First operand 2466 states and 3889 transitions. Second operand has 20 states, 20 states have (on average 12.95) internal successors, (259), 20 states have internal predecessors, (259), 5 states have call successors, (190), 3 states have call predecessors, (190), 6 states have return successors, (191), 5 states have call predecessors, (191), 5 states have call successors, (191) [2024-11-22 12:05:22,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:05:22,120 INFO L93 Difference]: Finished difference Result 20844 states and 32279 transitions. [2024-11-22 12:05:22,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2024-11-22 12:05:22,121 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 12.95) internal successors, (259), 20 states have internal predecessors, (259), 5 states have call successors, (190), 3 states have call predecessors, (190), 6 states have return successors, (191), 5 states have call predecessors, (191), 5 states have call successors, (191) Word has length 594 [2024-11-22 12:05:22,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:05:22,201 INFO L225 Difference]: With dead ends: 20844 [2024-11-22 12:05:22,202 INFO L226 Difference]: Without dead ends: 18624 [2024-11-22 12:05:22,212 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1336 GetRequests, 1197 SyntacticMatches, 1 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7666 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2878, Invalid=16582, Unknown=0, NotChecked=0, Total=19460 [2024-11-22 12:05:22,213 INFO L432 NwaCegarLoop]: 483 mSDtfsCounter, 10684 mSDsluCounter, 5241 mSDsCounter, 0 mSdLazyCounter, 3344 mSolverCounterSat, 4328 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10981 SdHoareTripleChecker+Valid, 5724 SdHoareTripleChecker+Invalid, 7672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4328 IncrementalHoareTripleChecker+Valid, 3344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-22 12:05:22,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10981 Valid, 5724 Invalid, 7672 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4328 Valid, 3344 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-11-22 12:05:22,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18624 states. [2024-11-22 12:05:22,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18624 to 6787. [2024-11-22 12:05:22,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6787 states, 5664 states have (on average 1.4987641242937852) internal successors, (8489), 5673 states have internal predecessors, (8489), 1061 states have call successors, (1061), 61 states have call predecessors, (1061), 61 states have return successors, (1061), 1052 states have call predecessors, (1061), 1061 states have call successors, (1061) [2024-11-22 12:05:22,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6787 states to 6787 states and 10611 transitions. [2024-11-22 12:05:22,788 INFO L78 Accepts]: Start accepts. Automaton has 6787 states and 10611 transitions. Word has length 594 [2024-11-22 12:05:22,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:05:22,789 INFO L471 AbstractCegarLoop]: Abstraction has 6787 states and 10611 transitions. [2024-11-22 12:05:22,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 12.95) internal successors, (259), 20 states have internal predecessors, (259), 5 states have call successors, (190), 3 states have call predecessors, (190), 6 states have return successors, (191), 5 states have call predecessors, (191), 5 states have call successors, (191) [2024-11-22 12:05:22,790 INFO L276 IsEmpty]: Start isEmpty. Operand 6787 states and 10611 transitions. [2024-11-22 12:05:22,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2024-11-22 12:05:22,799 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:05:22,799 INFO L215 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:05:22,811 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 12:05:23,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:05:23,001 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:05:23,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:05:23,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1249700421, now seen corresponding path program 1 times [2024-11-22 12:05:23,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:05:23,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803274319] [2024-11-22 12:05:23,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:05:23,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:05:23,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:05:23,210 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked. [2024-11-22 12:05:23,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:05:23,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803274319] [2024-11-22 12:05:23,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803274319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:05:23,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:05:23,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 12:05:23,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533907907] [2024-11-22 12:05:23,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:05:23,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 12:05:23,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:05:23,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 12:05:23,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:05:23,214 INFO L87 Difference]: Start difference. First operand 6787 states and 10611 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-11-22 12:05:23,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:05:23,724 INFO L93 Difference]: Finished difference Result 17863 states and 27911 transitions. [2024-11-22 12:05:23,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 12:05:23,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) Word has length 594 [2024-11-22 12:05:23,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:05:23,759 INFO L225 Difference]: With dead ends: 17863 [2024-11-22 12:05:23,759 INFO L226 Difference]: Without dead ends: 11798 [2024-11-22 12:05:23,772 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 [2024-11-22 12:05:23,773 INFO L432 NwaCegarLoop]: 464 mSDtfsCounter, 449 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:05:23,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 916 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:05:23,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11798 states. [2024-11-22 12:05:24,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11798 to 7227. [2024-11-22 12:05:24,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7227 states, 6104 states have (on average 1.4841087811271299) internal successors, (9059), 6113 states have internal predecessors, (9059), 1061 states have call successors, (1061), 61 states have call predecessors, (1061), 61 states have return successors, (1061), 1052 states have call predecessors, (1061), 1061 states have call successors, (1061) [2024-11-22 12:05:24,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7227 states to 7227 states and 11181 transitions. [2024-11-22 12:05:24,244 INFO L78 Accepts]: Start accepts. Automaton has 7227 states and 11181 transitions. Word has length 594 [2024-11-22 12:05:24,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:05:24,244 INFO L471 AbstractCegarLoop]: Abstraction has 7227 states and 11181 transitions. [2024-11-22 12:05:24,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-11-22 12:05:24,245 INFO L276 IsEmpty]: Start isEmpty. Operand 7227 states and 11181 transitions. [2024-11-22 12:05:24,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2024-11-22 12:05:24,249 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:05:24,249 INFO L215 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:05:24,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 12:05:24,250 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:05:24,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:05:24,250 INFO L85 PathProgramCache]: Analyzing trace with hash -290091017, now seen corresponding path program 1 times [2024-11-22 12:05:24,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:05:24,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122868234] [2024-11-22 12:05:24,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:05:24,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:05:25,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:05:26,672 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked. [2024-11-22 12:05:26,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:05:26,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122868234] [2024-11-22 12:05:26,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122868234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:05:26,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:05:26,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:05:26,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745918174] [2024-11-22 12:05:26,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:05:26,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:05:26,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:05:26,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:05:26,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:05:26,679 INFO L87 Difference]: Start difference. First operand 7227 states and 11181 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-11-22 12:05:28,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:05:28,057 INFO L93 Difference]: Finished difference Result 21145 states and 32611 transitions. [2024-11-22 12:05:28,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 12:05:28,058 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) Word has length 594 [2024-11-22 12:05:28,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:05:28,110 INFO L225 Difference]: With dead ends: 21145 [2024-11-22 12:05:28,111 INFO L226 Difference]: Without dead ends: 17835 [2024-11-22 12:05:28,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:05:28,125 INFO L432 NwaCegarLoop]: 1249 mSDtfsCounter, 1255 mSDsluCounter, 2917 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1255 SdHoareTripleChecker+Valid, 4166 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:05:28,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1255 Valid, 4166 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:05:28,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17835 states. [2024-11-22 12:05:28,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17835 to 12567. [2024-11-22 12:05:28,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12567 states, 10760 states have (on average 1.495631970260223) internal successors, (16093), 10775 states have internal predecessors, (16093), 1709 states have call successors, (1709), 97 states have call predecessors, (1709), 97 states have return successors, (1709), 1694 states have call predecessors, (1709), 1709 states have call successors, (1709) [2024-11-22 12:05:28,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12567 states to 12567 states and 19511 transitions. [2024-11-22 12:05:29,006 INFO L78 Accepts]: Start accepts. Automaton has 12567 states and 19511 transitions. Word has length 594 [2024-11-22 12:05:29,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:05:29,007 INFO L471 AbstractCegarLoop]: Abstraction has 12567 states and 19511 transitions. [2024-11-22 12:05:29,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-11-22 12:05:29,007 INFO L276 IsEmpty]: Start isEmpty. Operand 12567 states and 19511 transitions. [2024-11-22 12:05:29,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2024-11-22 12:05:29,014 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:05:29,015 INFO L215 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:05:29,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 12:05:29,015 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:05:29,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:05:29,015 INFO L85 PathProgramCache]: Analyzing trace with hash -262044821, now seen corresponding path program 1 times [2024-11-22 12:05:29,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:05:29,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249375357] [2024-11-22 12:05:29,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:05:29,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:05:31,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:05:32,299 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 102 proven. 162 refuted. 0 times theorem prover too weak. 15400 trivial. 0 not checked. [2024-11-22 12:05:32,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:05:32,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249375357] [2024-11-22 12:05:32,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249375357] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:05:32,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657030278] [2024-11-22 12:05:32,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:05:32,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:05:32,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:05:32,304 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:05:32,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 12:05:32,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:05:32,668 INFO L255 TraceCheckSpWp]: Trace formula consists of 1421 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-22 12:05:32,676 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:05:33,915 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 7500 proven. 162 refuted. 0 times theorem prover too weak. 8002 trivial. 0 not checked. [2024-11-22 12:05:33,916 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 12:05:34,655 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 102 proven. 162 refuted. 0 times theorem prover too weak. 15400 trivial. 0 not checked. [2024-11-22 12:05:34,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1657030278] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 12:05:34,655 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 12:05:34,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 15 [2024-11-22 12:05:34,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740273871] [2024-11-22 12:05:34,656 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 12:05:34,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-22 12:05:34,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:05:34,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-22 12:05:34,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2024-11-22 12:05:34,660 INFO L87 Difference]: Start difference. First operand 12567 states and 19511 transitions. Second operand has 15 states, 15 states have (on average 24.0) internal successors, (360), 15 states have internal predecessors, (360), 5 states have call successors, (232), 3 states have call predecessors, (232), 6 states have return successors, (233), 5 states have call predecessors, (233), 5 states have call successors, (233) [2024-11-22 12:05:36,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:05:36,887 INFO L93 Difference]: Finished difference Result 22022 states and 33970 transitions. [2024-11-22 12:05:36,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-22 12:05:36,888 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 24.0) internal successors, (360), 15 states have internal predecessors, (360), 5 states have call successors, (232), 3 states have call predecessors, (232), 6 states have return successors, (233), 5 states have call predecessors, (233), 5 states have call successors, (233) Word has length 594 [2024-11-22 12:05:36,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:05:36,920 INFO L225 Difference]: With dead ends: 22022 [2024-11-22 12:05:36,920 INFO L226 Difference]: Without dead ends: 9727 [2024-11-22 12:05:36,944 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1214 GetRequests, 1182 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=319, Invalid=737, Unknown=0, NotChecked=0, Total=1056 [2024-11-22 12:05:36,944 INFO L432 NwaCegarLoop]: 763 mSDtfsCounter, 967 mSDsluCounter, 2062 mSDsCounter, 0 mSdLazyCounter, 1841 mSolverCounterSat, 330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1001 SdHoareTripleChecker+Valid, 2825 SdHoareTripleChecker+Invalid, 2171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 1841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:05:36,945 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1001 Valid, 2825 Invalid, 2171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [330 Valid, 1841 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-22 12:05:36,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9727 states. [2024-11-22 12:05:37,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9727 to 8893. [2024-11-22 12:05:37,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8893 states, 7065 states have (on average 1.4411889596602971) internal successors, (10182), 7080 states have internal predecessors, (10182), 1709 states have call successors, (1709), 118 states have call predecessors, (1709), 118 states have return successors, (1709), 1694 states have call predecessors, (1709), 1709 states have call successors, (1709) [2024-11-22 12:05:37,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8893 states to 8893 states and 13600 transitions. [2024-11-22 12:05:37,709 INFO L78 Accepts]: Start accepts. Automaton has 8893 states and 13600 transitions. Word has length 594 [2024-11-22 12:05:37,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:05:37,710 INFO L471 AbstractCegarLoop]: Abstraction has 8893 states and 13600 transitions. [2024-11-22 12:05:37,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 24.0) internal successors, (360), 15 states have internal predecessors, (360), 5 states have call successors, (232), 3 states have call predecessors, (232), 6 states have return successors, (233), 5 states have call predecessors, (233), 5 states have call successors, (233) [2024-11-22 12:05:37,710 INFO L276 IsEmpty]: Start isEmpty. Operand 8893 states and 13600 transitions. [2024-11-22 12:05:37,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2024-11-22 12:05:37,714 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:05:37,715 INFO L215 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:05:37,726 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 12:05:37,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:05:37,916 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:05:37,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:05:37,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1857216473, now seen corresponding path program 1 times [2024-11-22 12:05:37,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:05:37,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122665953] [2024-11-22 12:05:37,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:05:37,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:05:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:05:40,112 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 165 proven. 99 refuted. 0 times theorem prover too weak. 15400 trivial. 0 not checked. [2024-11-22 12:05:40,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:05:40,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122665953] [2024-11-22 12:05:40,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122665953] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:05:40,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [584501484] [2024-11-22 12:05:40,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:05:40,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:05:40,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:05:40,117 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:05:40,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 12:05:40,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:05:40,433 INFO L255 TraceCheckSpWp]: Trace formula consists of 1425 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-22 12:05:40,441 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:05:41,513 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 9606 proven. 195 refuted. 0 times theorem prover too weak. 5863 trivial. 0 not checked. [2024-11-22 12:05:41,514 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 12:05:42,168 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 327 proven. 198 refuted. 0 times theorem prover too weak. 15139 trivial. 0 not checked. [2024-11-22 12:05:42,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [584501484] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 12:05:42,168 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 12:05:42,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 19 [2024-11-22 12:05:42,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019424823] [2024-11-22 12:05:42,168 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 12:05:42,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-22 12:05:42,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:05:42,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-22 12:05:42,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-11-22 12:05:42,171 INFO L87 Difference]: Start difference. First operand 8893 states and 13600 transitions. Second operand has 19 states, 19 states have (on average 15.894736842105264) internal successors, (302), 19 states have internal predecessors, (302), 6 states have call successors, (232), 3 states have call predecessors, (232), 7 states have return successors, (233), 6 states have call predecessors, (233), 6 states have call successors, (233) [2024-11-22 12:05:45,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-22 12:05:52,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:05:52,292 INFO L93 Difference]: Finished difference Result 41529 states and 62759 transitions. [2024-11-22 12:05:52,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2024-11-22 12:05:52,293 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.894736842105264) internal successors, (302), 19 states have internal predecessors, (302), 6 states have call successors, (232), 3 states have call predecessors, (232), 7 states have return successors, (233), 6 states have call predecessors, (233), 6 states have call successors, (233) Word has length 595 [2024-11-22 12:05:52,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:05:52,381 INFO L225 Difference]: With dead ends: 41529 [2024-11-22 12:05:52,381 INFO L226 Difference]: Without dead ends: 33702 [2024-11-22 12:05:52,408 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1295 GetRequests, 1187 SyntacticMatches, 2 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4140 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=2340, Invalid=9216, Unknown=0, NotChecked=0, Total=11556 [2024-11-22 12:05:52,408 INFO L432 NwaCegarLoop]: 502 mSDtfsCounter, 7017 mSDsluCounter, 3365 mSDsCounter, 0 mSdLazyCounter, 3638 mSolverCounterSat, 2176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7120 SdHoareTripleChecker+Valid, 3867 SdHoareTripleChecker+Invalid, 5814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2176 IncrementalHoareTripleChecker+Valid, 3638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-22 12:05:52,409 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7120 Valid, 3867 Invalid, 5814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2176 Valid, 3638 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2024-11-22 12:05:52,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33702 states. [2024-11-22 12:05:53,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33702 to 14294. [2024-11-22 12:05:53,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14294 states, 12294 states have (on average 1.4616886285993167) internal successors, (17970), 12304 states have internal predecessors, (17970), 1829 states have call successors, (1829), 170 states have call predecessors, (1829), 170 states have return successors, (1829), 1819 states have call predecessors, (1829), 1829 states have call successors, (1829) [2024-11-22 12:05:53,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14294 states to 14294 states and 21628 transitions. [2024-11-22 12:05:53,646 INFO L78 Accepts]: Start accepts. Automaton has 14294 states and 21628 transitions. Word has length 595 [2024-11-22 12:05:53,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:05:53,647 INFO L471 AbstractCegarLoop]: Abstraction has 14294 states and 21628 transitions. [2024-11-22 12:05:53,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.894736842105264) internal successors, (302), 19 states have internal predecessors, (302), 6 states have call successors, (232), 3 states have call predecessors, (232), 7 states have return successors, (233), 6 states have call predecessors, (233), 6 states have call successors, (233) [2024-11-22 12:05:53,647 INFO L276 IsEmpty]: Start isEmpty. Operand 14294 states and 21628 transitions. [2024-11-22 12:05:53,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2024-11-22 12:05:53,652 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:05:53,652 INFO L215 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:05:53,662 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-22 12:05:53,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-22 12:05:53,857 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:05:53,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:05:53,857 INFO L85 PathProgramCache]: Analyzing trace with hash 414147577, now seen corresponding path program 1 times [2024-11-22 12:05:53,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:05:53,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066979696] [2024-11-22 12:05:53,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:05:53,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:05:54,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:05:54,589 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked. [2024-11-22 12:05:54,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:05:54,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066979696] [2024-11-22 12:05:54,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066979696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:05:54,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:05:54,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:05:54,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907781386] [2024-11-22 12:05:54,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:05:54,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:05:54,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:05:54,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:05:54,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:05:54,591 INFO L87 Difference]: Start difference. First operand 14294 states and 21628 transitions. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-11-22 12:05:56,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:05:56,520 INFO L93 Difference]: Finished difference Result 33033 states and 49853 transitions. [2024-11-22 12:05:56,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:05:56,521 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) Word has length 595 [2024-11-22 12:05:56,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:05:56,587 INFO L225 Difference]: With dead ends: 33033 [2024-11-22 12:05:56,587 INFO L226 Difference]: Without dead ends: 17012 [2024-11-22 12:05:56,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:05:56,605 INFO L432 NwaCegarLoop]: 655 mSDtfsCounter, 894 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 894 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:05:56,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [894 Valid, 958 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:05:56,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17012 states.