./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label05.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label05.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 87305a5a64643923e8c67b443e2c0728b204b4b8052ef3905bef24700762109e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 21:31:53,035 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 21:31:53,073 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 21:31:53,079 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 21:31:53,081 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 21:31:53,101 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 21:31:53,102 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 21:31:53,102 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 21:31:53,102 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 21:31:53,104 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 21:31:53,104 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 21:31:53,104 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 21:31:53,105 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 21:31:53,106 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 21:31:53,106 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 21:31:53,106 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 21:31:53,107 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 21:31:53,107 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 21:31:53,107 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 21:31:53,107 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 21:31:53,107 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 21:31:53,109 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 21:31:53,110 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 21:31:53,110 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 21:31:53,110 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 21:31:53,110 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 21:31:53,110 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 21:31:53,110 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 21:31:53,111 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 21:31:53,111 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 21:31:53,111 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 21:31:53,111 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 21:31:53,111 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 21:31:53,111 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 21:31:53,111 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 21:31:53,112 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 21:31:53,112 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 21:31:53,112 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 21:31:53,112 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 21:31:53,112 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 21:31:53,112 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 21:31:53,113 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 21:31:53,114 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87305a5a64643923e8c67b443e2c0728b204b4b8052ef3905bef24700762109e [2024-10-12 21:31:53,292 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 21:31:53,311 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 21:31:53,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 21:31:53,315 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 21:31:53,315 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 21:31:53,316 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label05.c [2024-10-12 21:31:54,569 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 21:31:54,915 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 21:31:54,915 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label05.c [2024-10-12 21:31:54,941 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f3d986fb/4b9f38f09223472da3b822501c514fd4/FLAG45b4b3e2c [2024-10-12 21:31:54,956 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f3d986fb/4b9f38f09223472da3b822501c514fd4 [2024-10-12 21:31:54,958 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 21:31:54,960 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 21:31:54,961 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 21:31:54,962 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 21:31:54,966 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 21:31:54,968 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 09:31:54" (1/1) ... [2024-10-12 21:31:54,968 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7174174b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:31:54, skipping insertion in model container [2024-10-12 21:31:54,969 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 09:31:54" (1/1) ... [2024-10-12 21:31:55,044 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 21:31:55,286 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label05.c[15519,15532] [2024-10-12 21:31:55,332 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label05.c[22455,22468] [2024-10-12 21:31:55,780 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 21:31:55,790 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 21:31:55,824 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label05.c[15519,15532] [2024-10-12 21:31:55,834 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label05.c[22455,22468] [2024-10-12 21:31:56,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 21:31:56,139 INFO L204 MainTranslator]: Completed translation [2024-10-12 21:31:56,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:31:56 WrapperNode [2024-10-12 21:31:56,140 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 21:31:56,140 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 21:31:56,140 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 21:31:56,141 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 21:31:56,145 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:31:56" (1/1) ... [2024-10-12 21:31:56,183 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:31:56" (1/1) ... [2024-10-12 21:31:56,409 INFO L138 Inliner]: procedures = 37, calls = 23, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 5160 [2024-10-12 21:31:56,409 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 21:31:56,410 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 21:31:56,410 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 21:31:56,410 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 21:31:56,419 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:31:56" (1/1) ... [2024-10-12 21:31:56,419 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:31:56" (1/1) ... [2024-10-12 21:31:56,456 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:31:56" (1/1) ... [2024-10-12 21:31:56,634 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-12 21:31:56,635 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:31:56" (1/1) ... [2024-10-12 21:31:56,635 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:31:56" (1/1) ... [2024-10-12 21:31:56,720 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:31:56" (1/1) ... [2024-10-12 21:31:56,746 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:31:56" (1/1) ... [2024-10-12 21:31:56,785 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:31:56" (1/1) ... [2024-10-12 21:31:56,803 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:31:56" (1/1) ... [2024-10-12 21:31:56,846 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 21:31:56,847 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 21:31:56,847 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 21:31:56,848 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 21:31:56,848 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:31:56" (1/1) ... [2024-10-12 21:31:56,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 21:31:56,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 21:31:56,879 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-12 21:31:56,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-12 21:31:56,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 21:31:56,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 21:31:56,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 21:31:56,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 21:31:57,047 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 21:31:57,049 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 21:32:00,146 INFO L? ?]: Removed 749 outVars from TransFormulas that were not future-live. [2024-10-12 21:32:00,146 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 21:32:00,194 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 21:32:00,194 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-12 21:32:00,194 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:32:00 BoogieIcfgContainer [2024-10-12 21:32:00,194 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 21:32:00,196 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 21:32:00,196 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 21:32:00,198 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 21:32:00,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 09:31:54" (1/3) ... [2024-10-12 21:32:00,199 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@696e90f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 09:32:00, skipping insertion in model container [2024-10-12 21:32:00,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:31:56" (2/3) ... [2024-10-12 21:32:00,199 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@696e90f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 09:32:00, skipping insertion in model container [2024-10-12 21:32:00,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:32:00" (3/3) ... [2024-10-12 21:32:00,200 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label05.c [2024-10-12 21:32:00,212 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 21:32:00,212 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-12 21:32:00,275 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 21:32:00,280 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;@307cbe93, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 21:32:00,281 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-12 21:32:00,289 INFO L276 IsEmpty]: Start isEmpty. Operand has 849 states, 846 states have (on average 1.9739952718676124) internal successors, (1670), 848 states have internal predecessors, (1670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:00,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-12 21:32:00,294 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:32:00,295 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:32:00,295 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:32:00,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:32:00,301 INFO L85 PathProgramCache]: Analyzing trace with hash -304708079, now seen corresponding path program 1 times [2024-10-12 21:32:00,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:32:00,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568027584] [2024-10-12 21:32:00,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:32:00,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:32:00,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:32:00,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:32:00,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:32:00,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568027584] [2024-10-12 21:32:00,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568027584] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:32:00,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:32:00,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 21:32:00,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440772489] [2024-10-12 21:32:00,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:32:00,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 21:32:00,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:32:00,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 21:32:00,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 21:32:00,541 INFO L87 Difference]: Start difference. First operand has 849 states, 846 states have (on average 1.9739952718676124) internal successors, (1670), 848 states have internal predecessors, (1670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:00,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:32:00,620 INFO L93 Difference]: Finished difference Result 1654 states and 3254 transitions. [2024-10-12 21:32:00,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 21:32:00,623 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-10-12 21:32:00,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:32:00,641 INFO L225 Difference]: With dead ends: 1654 [2024-10-12 21:32:00,642 INFO L226 Difference]: Without dead ends: 845 [2024-10-12 21:32:00,646 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 21:32:00,648 INFO L432 NwaCegarLoop]: 1599 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1599 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 21:32:00,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1599 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 21:32:00,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2024-10-12 21:32:00,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 845. [2024-10-12 21:32:00,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 843 states have (on average 1.896797153024911) internal successors, (1599), 844 states have internal predecessors, (1599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:00,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1599 transitions. [2024-10-12 21:32:00,717 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1599 transitions. Word has length 23 [2024-10-12 21:32:00,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:32:00,717 INFO L471 AbstractCegarLoop]: Abstraction has 845 states and 1599 transitions. [2024-10-12 21:32:00,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:00,718 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1599 transitions. [2024-10-12 21:32:00,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-12 21:32:00,718 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:32:00,719 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:32:00,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 21:32:00,720 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:32:00,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:32:00,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1993651821, now seen corresponding path program 1 times [2024-10-12 21:32:00,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:32:00,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126821995] [2024-10-12 21:32:00,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:32:00,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:32:00,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:32:00,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:32:00,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:32:00,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126821995] [2024-10-12 21:32:00,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126821995] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:32:00,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:32:00,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 21:32:00,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679065728] [2024-10-12 21:32:00,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:32:00,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 21:32:00,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:32:00,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 21:32:00,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 21:32:00,875 INFO L87 Difference]: Start difference. First operand 845 states and 1599 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:00,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:32:00,965 INFO L93 Difference]: Finished difference Result 895 states and 1678 transitions. [2024-10-12 21:32:00,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 21:32:00,966 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-10-12 21:32:00,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:32:00,969 INFO L225 Difference]: With dead ends: 895 [2024-10-12 21:32:00,969 INFO L226 Difference]: Without dead ends: 845 [2024-10-12 21:32:00,970 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 21:32:00,971 INFO L432 NwaCegarLoop]: 1596 mSDtfsCounter, 0 mSDsluCounter, 3148 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4744 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 21:32:00,971 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4744 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 21:32:00,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2024-10-12 21:32:00,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 845. [2024-10-12 21:32:00,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 843 states have (on average 1.849347568208778) internal successors, (1559), 844 states have internal predecessors, (1559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:00,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1559 transitions. [2024-10-12 21:32:00,991 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1559 transitions. Word has length 23 [2024-10-12 21:32:00,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:32:00,991 INFO L471 AbstractCegarLoop]: Abstraction has 845 states and 1559 transitions. [2024-10-12 21:32:00,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:00,992 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1559 transitions. [2024-10-12 21:32:00,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-12 21:32:00,995 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:32:00,995 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:32:00,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 21:32:00,996 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:32:00,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:32:00,997 INFO L85 PathProgramCache]: Analyzing trace with hash 167656666, now seen corresponding path program 1 times [2024-10-12 21:32:00,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:32:01,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881408182] [2024-10-12 21:32:01,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:32:01,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:32:01,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:32:01,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:32:01,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:32:01,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881408182] [2024-10-12 21:32:01,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881408182] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:32:01,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:32:01,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 21:32:01,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730879533] [2024-10-12 21:32:01,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:32:01,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 21:32:01,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:32:01,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 21:32:01,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 21:32:01,196 INFO L87 Difference]: Start difference. First operand 845 states and 1559 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:06,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:32:06,000 INFO L93 Difference]: Finished difference Result 3100 states and 5868 transitions. [2024-10-12 21:32:06,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 21:32:06,001 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-10-12 21:32:06,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:32:06,007 INFO L225 Difference]: With dead ends: 3100 [2024-10-12 21:32:06,007 INFO L226 Difference]: Without dead ends: 2347 [2024-10-12 21:32:06,008 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 21:32:06,009 INFO L432 NwaCegarLoop]: 792 mSDtfsCounter, 2434 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5357 mSolverCounterSat, 1153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2434 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 6510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1153 IncrementalHoareTripleChecker+Valid, 5357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-10-12 21:32:06,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2434 Valid, 810 Invalid, 6510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1153 Valid, 5357 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-10-12 21:32:06,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2347 states. [2024-10-12 21:32:06,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2347 to 2347. [2024-10-12 21:32:06,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2347 states, 2345 states have (on average 1.566311300639659) internal successors, (3673), 2346 states have internal predecessors, (3673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:06,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2347 states to 2347 states and 3673 transitions. [2024-10-12 21:32:06,040 INFO L78 Accepts]: Start accepts. Automaton has 2347 states and 3673 transitions. Word has length 59 [2024-10-12 21:32:06,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:32:06,043 INFO L471 AbstractCegarLoop]: Abstraction has 2347 states and 3673 transitions. [2024-10-12 21:32:06,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:06,043 INFO L276 IsEmpty]: Start isEmpty. Operand 2347 states and 3673 transitions. [2024-10-12 21:32:06,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-12 21:32:06,046 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:32:06,046 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:32:06,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 21:32:06,047 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:32:06,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:32:06,047 INFO L85 PathProgramCache]: Analyzing trace with hash -399524715, now seen corresponding path program 1 times [2024-10-12 21:32:06,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:32:06,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077455315] [2024-10-12 21:32:06,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:32:06,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:32:06,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:32:06,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:32:06,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:32:06,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077455315] [2024-10-12 21:32:06,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077455315] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:32:06,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:32:06,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-12 21:32:06,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019497247] [2024-10-12 21:32:06,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:32:06,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 21:32:06,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:32:06,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 21:32:06,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-12 21:32:06,229 INFO L87 Difference]: Start difference. First operand 2347 states and 3673 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:06,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:32:06,464 INFO L93 Difference]: Finished difference Result 2911 states and 4585 transitions. [2024-10-12 21:32:06,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-12 21:32:06,465 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2024-10-12 21:32:06,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:32:06,472 INFO L225 Difference]: With dead ends: 2911 [2024-10-12 21:32:06,472 INFO L226 Difference]: Without dead ends: 2864 [2024-10-12 21:32:06,476 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2024-10-12 21:32:06,477 INFO L432 NwaCegarLoop]: 1552 mSDtfsCounter, 9675 mSDsluCounter, 2072 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9675 SdHoareTripleChecker+Valid, 3624 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 21:32:06,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9675 Valid, 3624 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 21:32:06,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2864 states. [2024-10-12 21:32:06,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2864 to 2392. [2024-10-12 21:32:06,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2392 states, 2390 states have (on average 1.5673640167364016) internal successors, (3746), 2391 states have internal predecessors, (3746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:06,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2392 states to 2392 states and 3746 transitions. [2024-10-12 21:32:06,513 INFO L78 Accepts]: Start accepts. Automaton has 2392 states and 3746 transitions. Word has length 62 [2024-10-12 21:32:06,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:32:06,514 INFO L471 AbstractCegarLoop]: Abstraction has 2392 states and 3746 transitions. [2024-10-12 21:32:06,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:06,515 INFO L276 IsEmpty]: Start isEmpty. Operand 2392 states and 3746 transitions. [2024-10-12 21:32:06,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-12 21:32:06,517 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:32:06,517 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:32:06,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 21:32:06,517 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:32:06,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:32:06,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1824915739, now seen corresponding path program 1 times [2024-10-12 21:32:06,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:32:06,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981519366] [2024-10-12 21:32:06,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:32:06,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:32:06,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:32:06,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:32:06,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:32:06,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981519366] [2024-10-12 21:32:06,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981519366] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:32:06,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:32:06,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 21:32:06,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20808507] [2024-10-12 21:32:06,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:32:06,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 21:32:06,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:32:06,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 21:32:06,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 21:32:06,591 INFO L87 Difference]: Start difference. First operand 2392 states and 3746 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:06,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:32:06,618 INFO L93 Difference]: Finished difference Result 2565 states and 4025 transitions. [2024-10-12 21:32:06,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 21:32:06,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-10-12 21:32:06,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:32:06,624 INFO L225 Difference]: With dead ends: 2565 [2024-10-12 21:32:06,625 INFO L226 Difference]: Without dead ends: 2473 [2024-10-12 21:32:06,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 21:32:06,626 INFO L432 NwaCegarLoop]: 1554 mSDtfsCounter, 1488 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 1624 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 21:32:06,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 1624 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 21:32:06,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2473 states. [2024-10-12 21:32:06,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2473 to 2471. [2024-10-12 21:32:06,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2471 states, 2469 states have (on average 1.568246253543945) internal successors, (3872), 2470 states have internal predecessors, (3872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:06,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2471 states to 2471 states and 3872 transitions. [2024-10-12 21:32:06,657 INFO L78 Accepts]: Start accepts. Automaton has 2471 states and 3872 transitions. Word has length 64 [2024-10-12 21:32:06,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:32:06,657 INFO L471 AbstractCegarLoop]: Abstraction has 2471 states and 3872 transitions. [2024-10-12 21:32:06,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:06,657 INFO L276 IsEmpty]: Start isEmpty. Operand 2471 states and 3872 transitions. [2024-10-12 21:32:06,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-12 21:32:06,658 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:32:06,658 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:32:06,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 21:32:06,658 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:32:06,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:32:06,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1822770787, now seen corresponding path program 1 times [2024-10-12 21:32:06,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:32:06,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29468401] [2024-10-12 21:32:06,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:32:06,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:32:06,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:32:06,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:32:06,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:32:06,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29468401] [2024-10-12 21:32:06,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29468401] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:32:06,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:32:06,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-12 21:32:06,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928885473] [2024-10-12 21:32:06,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:32:06,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 21:32:06,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:32:06,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 21:32:06,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-12 21:32:06,930 INFO L87 Difference]: Start difference. First operand 2471 states and 3872 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:07,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:32:07,112 INFO L93 Difference]: Finished difference Result 2644 states and 4148 transitions. [2024-10-12 21:32:07,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 21:32:07,112 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-10-12 21:32:07,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:32:07,118 INFO L225 Difference]: With dead ends: 2644 [2024-10-12 21:32:07,119 INFO L226 Difference]: Without dead ends: 2473 [2024-10-12 21:32:07,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-10-12 21:32:07,120 INFO L432 NwaCegarLoop]: 1548 mSDtfsCounter, 8980 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8980 SdHoareTripleChecker+Valid, 1906 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 21:32:07,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8980 Valid, 1906 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 21:32:07,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2473 states. [2024-10-12 21:32:07,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2473 to 2471. [2024-10-12 21:32:07,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2471 states, 2469 states have (on average 1.5674362089914946) internal successors, (3870), 2470 states have internal predecessors, (3870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:07,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2471 states to 2471 states and 3870 transitions. [2024-10-12 21:32:07,153 INFO L78 Accepts]: Start accepts. Automaton has 2471 states and 3870 transitions. Word has length 64 [2024-10-12 21:32:07,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:32:07,153 INFO L471 AbstractCegarLoop]: Abstraction has 2471 states and 3870 transitions. [2024-10-12 21:32:07,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:07,153 INFO L276 IsEmpty]: Start isEmpty. Operand 2471 states and 3870 transitions. [2024-10-12 21:32:07,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-12 21:32:07,154 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:32:07,154 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:32:07,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 21:32:07,154 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:32:07,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:32:07,155 INFO L85 PathProgramCache]: Analyzing trace with hash -800020118, now seen corresponding path program 1 times [2024-10-12 21:32:07,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:32:07,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403459423] [2024-10-12 21:32:07,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:32:07,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:32:07,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:32:07,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:32:07,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:32:07,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403459423] [2024-10-12 21:32:07,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403459423] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:32:07,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:32:07,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 21:32:07,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143334253] [2024-10-12 21:32:07,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:32:07,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 21:32:07,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:32:07,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 21:32:07,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 21:32:07,256 INFO L87 Difference]: Start difference. First operand 2471 states and 3870 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:07,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:32:07,286 INFO L93 Difference]: Finished difference Result 2477 states and 3877 transitions. [2024-10-12 21:32:07,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 21:32:07,287 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-10-12 21:32:07,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:32:07,294 INFO L225 Difference]: With dead ends: 2477 [2024-10-12 21:32:07,295 INFO L226 Difference]: Without dead ends: 2475 [2024-10-12 21:32:07,295 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 21:32:07,296 INFO L432 NwaCegarLoop]: 1555 mSDtfsCounter, 0 mSDsluCounter, 3102 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4657 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 21:32:07,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4657 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 21:32:07,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2475 states. [2024-10-12 21:32:07,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2475 to 2475. [2024-10-12 21:32:07,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2475 states, 2473 states have (on average 1.566114031540639) internal successors, (3873), 2474 states have internal predecessors, (3873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:07,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2475 states to 2475 states and 3873 transitions. [2024-10-12 21:32:07,327 INFO L78 Accepts]: Start accepts. Automaton has 2475 states and 3873 transitions. Word has length 65 [2024-10-12 21:32:07,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:32:07,328 INFO L471 AbstractCegarLoop]: Abstraction has 2475 states and 3873 transitions. [2024-10-12 21:32:07,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:07,328 INFO L276 IsEmpty]: Start isEmpty. Operand 2475 states and 3873 transitions. [2024-10-12 21:32:07,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-12 21:32:07,329 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:32:07,329 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:32:07,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 21:32:07,329 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:32:07,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:32:07,330 INFO L85 PathProgramCache]: Analyzing trace with hash 306459741, now seen corresponding path program 1 times [2024-10-12 21:32:07,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:32:07,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064932818] [2024-10-12 21:32:07,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:32:07,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:32:07,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:32:07,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:32:07,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:32:07,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064932818] [2024-10-12 21:32:07,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064932818] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:32:07,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:32:07,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 21:32:07,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745375923] [2024-10-12 21:32:07,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:32:07,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 21:32:07,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:32:07,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 21:32:07,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 21:32:07,387 INFO L87 Difference]: Start difference. First operand 2475 states and 3873 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:07,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:32:07,415 INFO L93 Difference]: Finished difference Result 2661 states and 4166 transitions. [2024-10-12 21:32:07,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 21:32:07,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-10-12 21:32:07,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:32:07,422 INFO L225 Difference]: With dead ends: 2661 [2024-10-12 21:32:07,423 INFO L226 Difference]: Without dead ends: 2565 [2024-10-12 21:32:07,423 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 21:32:07,424 INFO L432 NwaCegarLoop]: 1616 mSDtfsCounter, 1504 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1692 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 21:32:07,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1692 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 21:32:07,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2565 states. [2024-10-12 21:32:07,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2565 to 2563. [2024-10-12 21:32:07,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2563 states, 2561 states have (on average 1.5657946114798906) internal successors, (4010), 2562 states have internal predecessors, (4010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:07,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2563 states to 2563 states and 4010 transitions. [2024-10-12 21:32:07,459 INFO L78 Accepts]: Start accepts. Automaton has 2563 states and 4010 transitions. Word has length 66 [2024-10-12 21:32:07,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:32:07,459 INFO L471 AbstractCegarLoop]: Abstraction has 2563 states and 4010 transitions. [2024-10-12 21:32:07,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:07,459 INFO L276 IsEmpty]: Start isEmpty. Operand 2563 states and 4010 transitions. [2024-10-12 21:32:07,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-12 21:32:07,460 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:32:07,460 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:32:07,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 21:32:07,460 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:32:07,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:32:07,461 INFO L85 PathProgramCache]: Analyzing trace with hash -103926947, now seen corresponding path program 1 times [2024-10-12 21:32:07,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:32:07,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731167146] [2024-10-12 21:32:07,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:32:07,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:32:07,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:32:07,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:32:07,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:32:07,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731167146] [2024-10-12 21:32:07,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731167146] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:32:07,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:32:07,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 21:32:07,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511566858] [2024-10-12 21:32:07,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:32:07,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 21:32:07,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:32:07,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 21:32:07,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 21:32:07,505 INFO L87 Difference]: Start difference. First operand 2563 states and 4010 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:07,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:32:07,535 INFO L93 Difference]: Finished difference Result 3061 states and 4790 transitions. [2024-10-12 21:32:07,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 21:32:07,536 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-10-12 21:32:07,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:32:07,543 INFO L225 Difference]: With dead ends: 3061 [2024-10-12 21:32:07,543 INFO L226 Difference]: Without dead ends: 2800 [2024-10-12 21:32:07,544 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 21:32:07,545 INFO L432 NwaCegarLoop]: 1618 mSDtfsCounter, 1502 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 1698 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 21:32:07,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1502 Valid, 1698 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 21:32:07,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2800 states. [2024-10-12 21:32:07,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2800 to 2798. [2024-10-12 21:32:07,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 2796 states have (on average 1.563662374821173) internal successors, (4372), 2797 states have internal predecessors, (4372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:07,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 4372 transitions. [2024-10-12 21:32:07,585 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 4372 transitions. Word has length 66 [2024-10-12 21:32:07,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:32:07,586 INFO L471 AbstractCegarLoop]: Abstraction has 2798 states and 4372 transitions. [2024-10-12 21:32:07,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:07,586 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 4372 transitions. [2024-10-12 21:32:07,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-12 21:32:07,587 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:32:07,588 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:32:07,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 21:32:07,589 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:32:07,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:32:07,590 INFO L85 PathProgramCache]: Analyzing trace with hash -332566179, now seen corresponding path program 1 times [2024-10-12 21:32:07,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:32:07,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412819912] [2024-10-12 21:32:07,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:32:07,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:32:07,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:32:07,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:32:07,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:32:07,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412819912] [2024-10-12 21:32:07,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412819912] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:32:07,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:32:07,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 21:32:07,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876225077] [2024-10-12 21:32:07,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:32:07,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 21:32:07,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:32:07,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 21:32:07,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 21:32:07,643 INFO L87 Difference]: Start difference. First operand 2798 states and 4372 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:07,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:32:07,675 INFO L93 Difference]: Finished difference Result 3742 states and 5834 transitions. [2024-10-12 21:32:07,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 21:32:07,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-10-12 21:32:07,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:32:07,684 INFO L225 Difference]: With dead ends: 3742 [2024-10-12 21:32:07,684 INFO L226 Difference]: Without dead ends: 3246 [2024-10-12 21:32:07,686 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 21:32:07,686 INFO L432 NwaCegarLoop]: 1606 mSDtfsCounter, 1498 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 1694 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 21:32:07,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 1694 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 21:32:07,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3246 states. [2024-10-12 21:32:07,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3246 to 3244. [2024-10-12 21:32:07,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3244 states, 3242 states have (on average 1.5570635410240592) internal successors, (5048), 3243 states have internal predecessors, (5048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:07,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3244 states to 3244 states and 5048 transitions. [2024-10-12 21:32:07,740 INFO L78 Accepts]: Start accepts. Automaton has 3244 states and 5048 transitions. Word has length 66 [2024-10-12 21:32:07,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:32:07,740 INFO L471 AbstractCegarLoop]: Abstraction has 3244 states and 5048 transitions. [2024-10-12 21:32:07,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:07,740 INFO L276 IsEmpty]: Start isEmpty. Operand 3244 states and 5048 transitions. [2024-10-12 21:32:07,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-12 21:32:07,741 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:32:07,741 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:32:07,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-12 21:32:07,741 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:32:07,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:32:07,742 INFO L85 PathProgramCache]: Analyzing trace with hash -958222243, now seen corresponding path program 1 times [2024-10-12 21:32:07,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:32:07,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438316661] [2024-10-12 21:32:07,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:32:07,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:32:07,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:32:07,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:32:07,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:32:07,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438316661] [2024-10-12 21:32:07,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438316661] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:32:07,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:32:07,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 21:32:07,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603681283] [2024-10-12 21:32:07,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:32:07,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 21:32:07,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:32:07,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 21:32:07,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 21:32:07,823 INFO L87 Difference]: Start difference. First operand 3244 states and 5048 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:07,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:32:07,862 INFO L93 Difference]: Finished difference Result 5032 states and 7778 transitions. [2024-10-12 21:32:07,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 21:32:07,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-10-12 21:32:07,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:32:07,882 INFO L225 Difference]: With dead ends: 5032 [2024-10-12 21:32:07,882 INFO L226 Difference]: Without dead ends: 4090 [2024-10-12 21:32:07,884 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 21:32:07,885 INFO L432 NwaCegarLoop]: 1604 mSDtfsCounter, 1496 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1696 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 21:32:07,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1696 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 21:32:07,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4090 states. [2024-10-12 21:32:07,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4090 to 4088. [2024-10-12 21:32:07,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4088 states, 4086 states have (on average 1.54282917278512) internal successors, (6304), 4087 states have internal predecessors, (6304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:07,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4088 states to 4088 states and 6304 transitions. [2024-10-12 21:32:07,964 INFO L78 Accepts]: Start accepts. Automaton has 4088 states and 6304 transitions. Word has length 66 [2024-10-12 21:32:07,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:32:07,965 INFO L471 AbstractCegarLoop]: Abstraction has 4088 states and 6304 transitions. [2024-10-12 21:32:07,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:07,965 INFO L276 IsEmpty]: Start isEmpty. Operand 4088 states and 6304 transitions. [2024-10-12 21:32:07,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-12 21:32:07,965 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:32:07,965 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:32:07,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-12 21:32:07,966 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:32:07,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:32:07,966 INFO L85 PathProgramCache]: Analyzing trace with hash -69488803, now seen corresponding path program 1 times [2024-10-12 21:32:07,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:32:07,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802423062] [2024-10-12 21:32:07,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:32:07,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:32:07,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:32:08,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:32:08,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:32:08,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802423062] [2024-10-12 21:32:08,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802423062] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:32:08,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:32:08,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 21:32:08,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582033074] [2024-10-12 21:32:08,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:32:08,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 21:32:08,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:32:08,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 21:32:08,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 21:32:08,010 INFO L87 Difference]: Start difference. First operand 4088 states and 6304 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:08,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:32:08,072 INFO L93 Difference]: Finished difference Result 7468 states and 11378 transitions. [2024-10-12 21:32:08,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 21:32:08,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-10-12 21:32:08,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:32:08,081 INFO L225 Difference]: With dead ends: 7468 [2024-10-12 21:32:08,081 INFO L226 Difference]: Without dead ends: 5682 [2024-10-12 21:32:08,085 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 21:32:08,085 INFO L432 NwaCegarLoop]: 1602 mSDtfsCounter, 1494 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1698 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 21:32:08,086 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1698 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 21:32:08,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5682 states. [2024-10-12 21:32:08,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5682 to 5680. [2024-10-12 21:32:08,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5680 states, 5678 states have (on average 1.5188446636139485) internal successors, (8624), 5679 states have internal predecessors, (8624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:08,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5680 states to 5680 states and 8624 transitions. [2024-10-12 21:32:08,184 INFO L78 Accepts]: Start accepts. Automaton has 5680 states and 8624 transitions. Word has length 66 [2024-10-12 21:32:08,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:32:08,184 INFO L471 AbstractCegarLoop]: Abstraction has 5680 states and 8624 transitions. [2024-10-12 21:32:08,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:08,185 INFO L276 IsEmpty]: Start isEmpty. Operand 5680 states and 8624 transitions. [2024-10-12 21:32:08,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-12 21:32:08,185 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:32:08,185 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:32:08,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-12 21:32:08,186 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:32:08,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:32:08,186 INFO L85 PathProgramCache]: Analyzing trace with hash -372510115, now seen corresponding path program 1 times [2024-10-12 21:32:08,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:32:08,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795108667] [2024-10-12 21:32:08,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:32:08,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:32:08,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:32:08,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:32:08,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:32:08,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795108667] [2024-10-12 21:32:08,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795108667] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:32:08,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:32:08,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 21:32:08,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749588810] [2024-10-12 21:32:08,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:32:08,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 21:32:08,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:32:08,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 21:32:08,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 21:32:08,231 INFO L87 Difference]: Start difference. First operand 5680 states and 8624 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:08,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:32:08,320 INFO L93 Difference]: Finished difference Result 12052 states and 18002 transitions. [2024-10-12 21:32:08,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 21:32:08,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-10-12 21:32:08,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:32:08,331 INFO L225 Difference]: With dead ends: 12052 [2024-10-12 21:32:08,331 INFO L226 Difference]: Without dead ends: 8674 [2024-10-12 21:32:08,335 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 21:32:08,336 INFO L432 NwaCegarLoop]: 1616 mSDtfsCounter, 1500 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 1700 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 21:32:08,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1500 Valid, 1700 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 21:32:08,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8674 states. [2024-10-12 21:32:08,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8674 to 8672. [2024-10-12 21:32:08,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8672 states, 8670 states have (on average 1.4855824682814303) internal successors, (12880), 8671 states have internal predecessors, (12880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:08,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8672 states to 8672 states and 12880 transitions. [2024-10-12 21:32:08,556 INFO L78 Accepts]: Start accepts. Automaton has 8672 states and 12880 transitions. Word has length 66 [2024-10-12 21:32:08,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:32:08,557 INFO L471 AbstractCegarLoop]: Abstraction has 8672 states and 12880 transitions. [2024-10-12 21:32:08,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:08,557 INFO L276 IsEmpty]: Start isEmpty. Operand 8672 states and 12880 transitions. [2024-10-12 21:32:08,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-12 21:32:08,560 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:32:08,560 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:32:08,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-12 21:32:08,560 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:32:08,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:32:08,561 INFO L85 PathProgramCache]: Analyzing trace with hash -956920740, now seen corresponding path program 1 times [2024-10-12 21:32:08,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:32:08,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127716712] [2024-10-12 21:32:08,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:32:08,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:32:08,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:32:08,729 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 21:32:08,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:32:08,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127716712] [2024-10-12 21:32:08,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127716712] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:32:08,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:32:08,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-12 21:32:08,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092792863] [2024-10-12 21:32:08,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:32:08,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 21:32:08,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:32:08,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 21:32:08,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-12 21:32:08,731 INFO L87 Difference]: Start difference. First operand 8672 states and 12880 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:09,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:32:09,402 INFO L93 Difference]: Finished difference Result 46318 states and 67703 transitions. [2024-10-12 21:32:09,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 21:32:09,403 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-10-12 21:32:09,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:32:09,460 INFO L225 Difference]: With dead ends: 46318 [2024-10-12 21:32:09,461 INFO L226 Difference]: Without dead ends: 41836 [2024-10-12 21:32:09,471 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-10-12 21:32:09,472 INFO L432 NwaCegarLoop]: 1628 mSDtfsCounter, 8059 mSDsluCounter, 2361 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8059 SdHoareTripleChecker+Valid, 3989 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 21:32:09,472 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8059 Valid, 3989 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 21:32:09,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41836 states. [2024-10-12 21:32:09,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41836 to 14112. [2024-10-12 21:32:09,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14112 states, 14110 states have (on average 1.4684620836286322) internal successors, (20720), 14111 states have internal predecessors, (20720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:09,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14112 states to 14112 states and 20720 transitions. [2024-10-12 21:32:09,861 INFO L78 Accepts]: Start accepts. Automaton has 14112 states and 20720 transitions. Word has length 86 [2024-10-12 21:32:09,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:32:09,861 INFO L471 AbstractCegarLoop]: Abstraction has 14112 states and 20720 transitions. [2024-10-12 21:32:09,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:09,861 INFO L276 IsEmpty]: Start isEmpty. Operand 14112 states and 20720 transitions. [2024-10-12 21:32:09,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-12 21:32:09,864 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:32:09,864 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:32:09,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-12 21:32:09,864 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:32:09,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:32:09,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1367307428, now seen corresponding path program 1 times [2024-10-12 21:32:09,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:32:09,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452936949] [2024-10-12 21:32:09,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:32:09,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:32:09,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:32:10,029 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 21:32:10,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:32:10,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452936949] [2024-10-12 21:32:10,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452936949] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:32:10,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:32:10,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-12 21:32:10,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197742855] [2024-10-12 21:32:10,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:32:10,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 21:32:10,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:32:10,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 21:32:10,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-12 21:32:10,030 INFO L87 Difference]: Start difference. First operand 14112 states and 20720 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:10,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:32:10,734 INFO L93 Difference]: Finished difference Result 52686 states and 76919 transitions. [2024-10-12 21:32:10,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 21:32:10,734 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-10-12 21:32:10,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:32:10,791 INFO L225 Difference]: With dead ends: 52686 [2024-10-12 21:32:10,792 INFO L226 Difference]: Without dead ends: 46316 [2024-10-12 21:32:10,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-10-12 21:32:10,806 INFO L432 NwaCegarLoop]: 1627 mSDtfsCounter, 8061 mSDsluCounter, 2331 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8061 SdHoareTripleChecker+Valid, 3958 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 21:32:10,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8061 Valid, 3958 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 21:32:10,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46316 states. [2024-10-12 21:32:11,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46316 to 22720. [2024-10-12 21:32:11,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22720 states, 22718 states have (on average 1.4571705255744343) internal successors, (33104), 22719 states have internal predecessors, (33104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:11,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22720 states to 22720 states and 33104 transitions. [2024-10-12 21:32:11,516 INFO L78 Accepts]: Start accepts. Automaton has 22720 states and 33104 transitions. Word has length 86 [2024-10-12 21:32:11,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:32:11,517 INFO L471 AbstractCegarLoop]: Abstraction has 22720 states and 33104 transitions. [2024-10-12 21:32:11,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:11,517 INFO L276 IsEmpty]: Start isEmpty. Operand 22720 states and 33104 transitions. [2024-10-12 21:32:11,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-12 21:32:11,520 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:32:11,521 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:32:11,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-12 21:32:11,521 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:32:11,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:32:11,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1595946660, now seen corresponding path program 1 times [2024-10-12 21:32:11,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:32:11,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392758569] [2024-10-12 21:32:11,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:32:11,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:32:11,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:32:11,683 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-12 21:32:11,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:32:11,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392758569] [2024-10-12 21:32:11,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392758569] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:32:11,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:32:11,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-12 21:32:11,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367837162] [2024-10-12 21:32:11,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:32:11,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 21:32:11,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:32:11,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 21:32:11,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-12 21:32:11,686 INFO L87 Difference]: Start difference. First operand 22720 states and 33104 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:12,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:32:12,597 INFO L93 Difference]: Finished difference Result 59054 states and 86103 transitions. [2024-10-12 21:32:12,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 21:32:12,597 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-10-12 21:32:12,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:32:12,663 INFO L225 Difference]: With dead ends: 59054 [2024-10-12 21:32:12,663 INFO L226 Difference]: Without dead ends: 52684 [2024-10-12 21:32:12,679 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-10-12 21:32:12,679 INFO L432 NwaCegarLoop]: 1625 mSDtfsCounter, 8103 mSDsluCounter, 2329 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8103 SdHoareTripleChecker+Valid, 3954 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 21:32:12,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8103 Valid, 3954 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 21:32:12,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52684 states. [2024-10-12 21:32:13,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52684 to 29088. [2024-10-12 21:32:13,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29088 states, 29086 states have (on average 1.4538953448394416) internal successors, (42288), 29087 states have internal predecessors, (42288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:13,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29088 states to 29088 states and 42288 transitions. [2024-10-12 21:32:13,425 INFO L78 Accepts]: Start accepts. Automaton has 29088 states and 42288 transitions. Word has length 86 [2024-10-12 21:32:13,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:32:13,425 INFO L471 AbstractCegarLoop]: Abstraction has 29088 states and 42288 transitions. [2024-10-12 21:32:13,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:13,425 INFO L276 IsEmpty]: Start isEmpty. Operand 29088 states and 42288 transitions. [2024-10-12 21:32:13,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-12 21:32:13,428 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:32:13,428 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:32:13,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-12 21:32:13,428 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:32:13,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:32:13,429 INFO L85 PathProgramCache]: Analyzing trace with hash 2073364572, now seen corresponding path program 1 times [2024-10-12 21:32:13,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:32:13,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513764639] [2024-10-12 21:32:13,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:32:13,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:32:13,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:32:13,590 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-12 21:32:13,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:32:13,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513764639] [2024-10-12 21:32:13,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513764639] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:32:13,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:32:13,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-12 21:32:13,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628325028] [2024-10-12 21:32:13,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:32:13,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 21:32:13,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:32:13,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 21:32:13,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-12 21:32:13,592 INFO L87 Difference]: Start difference. First operand 29088 states and 42288 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:14,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:32:14,769 INFO L93 Difference]: Finished difference Result 65422 states and 95287 transitions. [2024-10-12 21:32:14,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 21:32:14,770 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-10-12 21:32:14,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:32:14,847 INFO L225 Difference]: With dead ends: 65422 [2024-10-12 21:32:14,847 INFO L226 Difference]: Without dead ends: 59052 [2024-10-12 21:32:14,862 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-10-12 21:32:14,863 INFO L432 NwaCegarLoop]: 1623 mSDtfsCounter, 8157 mSDsluCounter, 2296 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8157 SdHoareTripleChecker+Valid, 3919 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 21:32:14,863 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8157 Valid, 3919 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 21:32:14,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59052 states. [2024-10-12 21:32:16,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59052 to 35456. [2024-10-12 21:32:16,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35456 states, 35454 states have (on average 1.4517966943081175) internal successors, (51472), 35455 states have internal predecessors, (51472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:16,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35456 states to 35456 states and 51472 transitions. [2024-10-12 21:32:16,163 INFO L78 Accepts]: Start accepts. Automaton has 35456 states and 51472 transitions. Word has length 86 [2024-10-12 21:32:16,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:32:16,164 INFO L471 AbstractCegarLoop]: Abstraction has 35456 states and 51472 transitions. [2024-10-12 21:32:16,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:16,164 INFO L276 IsEmpty]: Start isEmpty. Operand 35456 states and 51472 transitions. [2024-10-12 21:32:16,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-12 21:32:16,167 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:32:16,167 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:32:16,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-12 21:32:16,168 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:32:16,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:32:16,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1332869284, now seen corresponding path program 1 times [2024-10-12 21:32:16,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:32:16,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048357837] [2024-10-12 21:32:16,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:32:16,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:32:16,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:32:16,311 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 21:32:16,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:32:16,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048357837] [2024-10-12 21:32:16,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048357837] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:32:16,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:32:16,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-12 21:32:16,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307940530] [2024-10-12 21:32:16,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:32:16,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 21:32:16,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:32:16,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 21:32:16,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-12 21:32:16,313 INFO L87 Difference]: Start difference. First operand 35456 states and 51472 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:17,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:32:17,561 INFO L93 Difference]: Finished difference Result 71790 states and 104471 transitions. [2024-10-12 21:32:17,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 21:32:17,562 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-10-12 21:32:17,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:32:17,641 INFO L225 Difference]: With dead ends: 71790 [2024-10-12 21:32:17,641 INFO L226 Difference]: Without dead ends: 65420 [2024-10-12 21:32:17,659 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-10-12 21:32:17,660 INFO L432 NwaCegarLoop]: 1623 mSDtfsCounter, 8071 mSDsluCounter, 2368 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8071 SdHoareTripleChecker+Valid, 3991 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 21:32:17,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8071 Valid, 3991 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 21:32:17,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65420 states. [2024-10-12 21:32:18,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65420 to 41824. [2024-10-12 21:32:18,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41824 states, 41822 states have (on average 1.4503371431304097) internal successors, (60656), 41823 states have internal predecessors, (60656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:18,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41824 states to 41824 states and 60656 transitions. [2024-10-12 21:32:18,814 INFO L78 Accepts]: Start accepts. Automaton has 41824 states and 60656 transitions. Word has length 86 [2024-10-12 21:32:18,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:32:18,814 INFO L471 AbstractCegarLoop]: Abstraction has 41824 states and 60656 transitions. [2024-10-12 21:32:18,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:18,815 INFO L276 IsEmpty]: Start isEmpty. Operand 41824 states and 60656 transitions. [2024-10-12 21:32:18,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-12 21:32:18,818 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:32:18,818 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:32:18,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-12 21:32:18,819 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:32:18,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:32:18,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1635890596, now seen corresponding path program 1 times [2024-10-12 21:32:18,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:32:18,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490375265] [2024-10-12 21:32:18,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:32:18,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:32:18,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:32:18,937 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-12 21:32:18,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:32:18,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490375265] [2024-10-12 21:32:18,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490375265] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:32:18,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:32:18,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-12 21:32:18,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305579317] [2024-10-12 21:32:18,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:32:18,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 21:32:18,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:32:18,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 21:32:18,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-12 21:32:18,939 INFO L87 Difference]: Start difference. First operand 41824 states and 60656 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:21,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:32:21,042 INFO L93 Difference]: Finished difference Result 78158 states and 113655 transitions. [2024-10-12 21:32:21,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 21:32:21,045 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-10-12 21:32:21,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:32:21,129 INFO L225 Difference]: With dead ends: 78158 [2024-10-12 21:32:21,129 INFO L226 Difference]: Without dead ends: 71788 [2024-10-12 21:32:21,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-10-12 21:32:21,145 INFO L432 NwaCegarLoop]: 1622 mSDtfsCounter, 8012 mSDsluCounter, 2472 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8012 SdHoareTripleChecker+Valid, 4094 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 21:32:21,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8012 Valid, 4094 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 21:32:21,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71788 states. [2024-10-12 21:32:22,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71788 to 48192. [2024-10-12 21:32:22,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48192 states, 48190 states have (on average 1.4492633326416269) internal successors, (69840), 48191 states have internal predecessors, (69840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:22,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48192 states to 48192 states and 69840 transitions. [2024-10-12 21:32:22,853 INFO L78 Accepts]: Start accepts. Automaton has 48192 states and 69840 transitions. Word has length 86 [2024-10-12 21:32:22,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:32:22,853 INFO L471 AbstractCegarLoop]: Abstraction has 48192 states and 69840 transitions. [2024-10-12 21:32:22,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:22,854 INFO L276 IsEmpty]: Start isEmpty. Operand 48192 states and 69840 transitions. [2024-10-12 21:32:22,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-12 21:32:22,857 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:32:22,857 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:32:22,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-12 21:32:22,857 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:32:22,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:32:22,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1295750022, now seen corresponding path program 1 times [2024-10-12 21:32:22,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:32:22,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302226989] [2024-10-12 21:32:22,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:32:22,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:32:22,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:32:22,936 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:32:22,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:32:22,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302226989] [2024-10-12 21:32:22,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302226989] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:32:22,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:32:22,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 21:32:22,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298418521] [2024-10-12 21:32:22,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:32:22,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 21:32:22,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:32:22,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 21:32:22,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 21:32:22,939 INFO L87 Difference]: Start difference. First operand 48192 states and 69840 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:23,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:32:23,943 INFO L93 Difference]: Finished difference Result 94084 states and 136082 transitions. [2024-10-12 21:32:23,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 21:32:23,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2024-10-12 21:32:23,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:32:24,002 INFO L225 Difference]: With dead ends: 94084 [2024-10-12 21:32:24,002 INFO L226 Difference]: Without dead ends: 48194 [2024-10-12 21:32:24,018 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 21:32:24,019 INFO L432 NwaCegarLoop]: 1598 mSDtfsCounter, 53 mSDsluCounter, 1545 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 3143 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 21:32:24,019 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 3143 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 21:32:24,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48194 states. [2024-10-12 21:32:24,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48194 to 48192. [2024-10-12 21:32:25,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48192 states, 48190 states have (on average 1.4349865117244243) internal successors, (69152), 48191 states have internal predecessors, (69152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:25,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48192 states to 48192 states and 69152 transitions. [2024-10-12 21:32:25,081 INFO L78 Accepts]: Start accepts. Automaton has 48192 states and 69152 transitions. Word has length 87 [2024-10-12 21:32:25,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:32:25,081 INFO L471 AbstractCegarLoop]: Abstraction has 48192 states and 69152 transitions. [2024-10-12 21:32:25,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:25,081 INFO L276 IsEmpty]: Start isEmpty. Operand 48192 states and 69152 transitions. [2024-10-12 21:32:25,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-12 21:32:25,083 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:32:25,083 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:32:25,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-12 21:32:25,084 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:32:25,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:32:25,084 INFO L85 PathProgramCache]: Analyzing trace with hash 145945252, now seen corresponding path program 1 times [2024-10-12 21:32:25,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:32:25,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398314544] [2024-10-12 21:32:25,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:32:25,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:32:25,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:32:25,146 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:32:25,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:32:25,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398314544] [2024-10-12 21:32:25,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398314544] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:32:25,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:32:25,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 21:32:25,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238763507] [2024-10-12 21:32:25,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:32:25,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 21:32:25,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:32:25,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 21:32:25,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 21:32:25,148 INFO L87 Difference]: Start difference. First operand 48192 states and 69152 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:25,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:32:25,819 INFO L93 Difference]: Finished difference Result 65016 states and 93415 transitions. [2024-10-12 21:32:25,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 21:32:25,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2024-10-12 21:32:25,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:32:25,844 INFO L225 Difference]: With dead ends: 65016 [2024-10-12 21:32:25,845 INFO L226 Difference]: Without dead ends: 19126 [2024-10-12 21:32:25,875 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 21:32:25,876 INFO L432 NwaCegarLoop]: 1596 mSDtfsCounter, 47 mSDsluCounter, 1544 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 3140 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 21:32:25,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 3140 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 21:32:25,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19126 states. [2024-10-12 21:32:26,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19126 to 19119. [2024-10-12 21:32:26,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19119 states, 19117 states have (on average 1.4445258147198827) internal successors, (27615), 19118 states have internal predecessors, (27615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:26,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19119 states to 19119 states and 27615 transitions. [2024-10-12 21:32:26,504 INFO L78 Accepts]: Start accepts. Automaton has 19119 states and 27615 transitions. Word has length 88 [2024-10-12 21:32:26,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:32:26,504 INFO L471 AbstractCegarLoop]: Abstraction has 19119 states and 27615 transitions. [2024-10-12 21:32:26,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:26,504 INFO L276 IsEmpty]: Start isEmpty. Operand 19119 states and 27615 transitions. [2024-10-12 21:32:26,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-12 21:32:26,506 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:32:26,506 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:32:26,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-12 21:32:26,506 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:32:26,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:32:26,507 INFO L85 PathProgramCache]: Analyzing trace with hash 542716552, now seen corresponding path program 1 times [2024-10-12 21:32:26,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:32:26,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348982653] [2024-10-12 21:32:26,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:32:26,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:32:26,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:32:26,608 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:32:26,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:32:26,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348982653] [2024-10-12 21:32:26,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348982653] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:32:26,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:32:26,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 21:32:26,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410146034] [2024-10-12 21:32:26,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:32:26,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 21:32:26,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:32:26,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 21:32:26,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 21:32:26,610 INFO L87 Difference]: Start difference. First operand 19119 states and 27615 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:26,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:32:26,926 INFO L93 Difference]: Finished difference Result 27523 states and 39617 transitions. [2024-10-12 21:32:26,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 21:32:26,926 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-10-12 21:32:26,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:32:26,936 INFO L225 Difference]: With dead ends: 27523 [2024-10-12 21:32:26,936 INFO L226 Difference]: Without dead ends: 10721 [2024-10-12 21:32:26,944 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 21:32:26,946 INFO L432 NwaCegarLoop]: 1590 mSDtfsCounter, 49 mSDsluCounter, 1529 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 3119 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 21:32:26,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 3119 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 21:32:26,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10721 states. [2024-10-12 21:32:27,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10721 to 10719. [2024-10-12 21:32:27,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10719 states, 10717 states have (on average 1.4458337221237287) internal successors, (15495), 10718 states have internal predecessors, (15495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:27,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10719 states to 10719 states and 15495 transitions. [2024-10-12 21:32:27,143 INFO L78 Accepts]: Start accepts. Automaton has 10719 states and 15495 transitions. Word has length 89 [2024-10-12 21:32:27,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:32:27,143 INFO L471 AbstractCegarLoop]: Abstraction has 10719 states and 15495 transitions. [2024-10-12 21:32:27,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:27,143 INFO L276 IsEmpty]: Start isEmpty. Operand 10719 states and 15495 transitions. [2024-10-12 21:32:27,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-12 21:32:27,144 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:32:27,145 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:32:27,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-12 21:32:27,145 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:32:27,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:32:27,145 INFO L85 PathProgramCache]: Analyzing trace with hash 2089619990, now seen corresponding path program 1 times [2024-10-12 21:32:27,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:32:27,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543279858] [2024-10-12 21:32:27,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:32:27,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:32:27,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:32:27,205 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:32:27,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:32:27,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543279858] [2024-10-12 21:32:27,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543279858] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:32:27,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:32:27,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 21:32:27,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386001489] [2024-10-12 21:32:27,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:32:27,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 21:32:27,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:32:27,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 21:32:27,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 21:32:27,206 INFO L87 Difference]: Start difference. First operand 10719 states and 15495 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:27,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:32:27,307 INFO L93 Difference]: Finished difference Result 14923 states and 21437 transitions. [2024-10-12 21:32:27,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 21:32:27,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-10-12 21:32:27,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:32:27,315 INFO L225 Difference]: With dead ends: 14923 [2024-10-12 21:32:27,316 INFO L226 Difference]: Without dead ends: 6521 [2024-10-12 21:32:27,320 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 21:32:27,321 INFO L432 NwaCegarLoop]: 1583 mSDtfsCounter, 46 mSDsluCounter, 1521 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 3104 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 21:32:27,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 3104 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 21:32:27,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6521 states. [2024-10-12 21:32:27,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6521 to 6519. [2024-10-12 21:32:27,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6519 states, 6517 states have (on average 1.4569587233389596) internal successors, (9495), 6518 states have internal predecessors, (9495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:27,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6519 states to 6519 states and 9495 transitions. [2024-10-12 21:32:27,432 INFO L78 Accepts]: Start accepts. Automaton has 6519 states and 9495 transitions. Word has length 91 [2024-10-12 21:32:27,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:32:27,433 INFO L471 AbstractCegarLoop]: Abstraction has 6519 states and 9495 transitions. [2024-10-12 21:32:27,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:27,433 INFO L276 IsEmpty]: Start isEmpty. Operand 6519 states and 9495 transitions. [2024-10-12 21:32:27,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-12 21:32:27,434 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:32:27,434 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:32:27,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-12 21:32:27,434 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:32:27,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:32:27,435 INFO L85 PathProgramCache]: Analyzing trace with hash -925570268, now seen corresponding path program 1 times [2024-10-12 21:32:27,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:32:27,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692723706] [2024-10-12 21:32:27,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:32:27,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:32:27,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:32:27,498 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:32:27,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:32:27,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692723706] [2024-10-12 21:32:27,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692723706] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:32:27,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:32:27,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 21:32:27,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144612031] [2024-10-12 21:32:27,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:32:27,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 21:32:27,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:32:27,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 21:32:27,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 21:32:27,501 INFO L87 Difference]: Start difference. First operand 6519 states and 9495 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:27,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:32:27,561 INFO L93 Difference]: Finished difference Result 8623 states and 12437 transitions. [2024-10-12 21:32:27,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 21:32:27,562 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-10-12 21:32:27,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:32:27,567 INFO L225 Difference]: With dead ends: 8623 [2024-10-12 21:32:27,567 INFO L226 Difference]: Without dead ends: 4421 [2024-10-12 21:32:27,570 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 21:32:27,570 INFO L432 NwaCegarLoop]: 1576 mSDtfsCounter, 43 mSDsluCounter, 1513 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 3089 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 21:32:27,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 3089 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 21:32:27,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4421 states. [2024-10-12 21:32:27,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4421 to 4419. [2024-10-12 21:32:27,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4419 states, 4417 states have (on average 1.477247000226398) internal successors, (6525), 4418 states have internal predecessors, (6525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:27,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4419 states to 4419 states and 6525 transitions. [2024-10-12 21:32:27,636 INFO L78 Accepts]: Start accepts. Automaton has 4419 states and 6525 transitions. Word has length 93 [2024-10-12 21:32:27,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:32:27,636 INFO L471 AbstractCegarLoop]: Abstraction has 4419 states and 6525 transitions. [2024-10-12 21:32:27,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:27,636 INFO L276 IsEmpty]: Start isEmpty. Operand 4419 states and 6525 transitions. [2024-10-12 21:32:27,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-12 21:32:27,637 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:32:27,637 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:32:27,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-12 21:32:27,638 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:32:27,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:32:27,638 INFO L85 PathProgramCache]: Analyzing trace with hash 826121650, now seen corresponding path program 1 times [2024-10-12 21:32:27,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:32:27,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836927087] [2024-10-12 21:32:27,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:32:27,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:32:27,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:32:27,709 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:32:27,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:32:27,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836927087] [2024-10-12 21:32:27,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836927087] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:32:27,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:32:27,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 21:32:27,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125282964] [2024-10-12 21:32:27,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:32:27,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 21:32:27,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:32:27,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 21:32:27,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 21:32:27,711 INFO L87 Difference]: Start difference. First operand 4419 states and 6525 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:27,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:32:27,756 INFO L93 Difference]: Finished difference Result 5473 states and 7982 transitions. [2024-10-12 21:32:27,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 21:32:27,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-10-12 21:32:27,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:32:27,761 INFO L225 Difference]: With dead ends: 5473 [2024-10-12 21:32:27,762 INFO L226 Difference]: Without dead ends: 3371 [2024-10-12 21:32:27,763 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 21:32:27,763 INFO L432 NwaCegarLoop]: 1569 mSDtfsCounter, 40 mSDsluCounter, 1505 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 3074 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 21:32:27,766 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 3074 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 21:32:27,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3371 states. [2024-10-12 21:32:27,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3371 to 3369. [2024-10-12 21:32:27,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3369 states, 3367 states have (on average 1.5013365013365014) internal successors, (5055), 3368 states have internal predecessors, (5055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:27,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3369 states to 3369 states and 5055 transitions. [2024-10-12 21:32:27,809 INFO L78 Accepts]: Start accepts. Automaton has 3369 states and 5055 transitions. Word has length 95 [2024-10-12 21:32:27,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:32:27,809 INFO L471 AbstractCegarLoop]: Abstraction has 3369 states and 5055 transitions. [2024-10-12 21:32:27,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:27,809 INFO L276 IsEmpty]: Start isEmpty. Operand 3369 states and 5055 transitions. [2024-10-12 21:32:27,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-12 21:32:27,810 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:32:27,810 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:32:27,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-12 21:32:27,811 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:32:27,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:32:27,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1704195648, now seen corresponding path program 1 times [2024-10-12 21:32:27,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:32:27,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892265442] [2024-10-12 21:32:27,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:32:27,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:32:27,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:32:27,913 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 21:32:27,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:32:27,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892265442] [2024-10-12 21:32:27,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892265442] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 21:32:27,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641023579] [2024-10-12 21:32:27,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:32:27,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 21:32:27,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 21:32:27,916 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) [2024-10-12 21:32:27,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-12 21:32:28,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:32:28,039 INFO L255 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-12 21:32:28,046 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 21:32:28,433 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:32:28,436 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 21:32:29,567 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:32:29,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [641023579] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 21:32:29,567 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 21:32:29,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9, 9] total 20 [2024-10-12 21:32:29,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950552263] [2024-10-12 21:32:29,568 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 21:32:29,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-12 21:32:29,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:32:29,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-12 21:32:29,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2024-10-12 21:32:29,569 INFO L87 Difference]: Start difference. First operand 3369 states and 5055 transitions. Second operand has 20 states, 20 states have (on average 12.8) internal successors, (256), 20 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:30,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:32:30,259 INFO L93 Difference]: Finished difference Result 6410 states and 9074 transitions. [2024-10-12 21:32:30,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-12 21:32:30,259 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 12.8) internal successors, (256), 20 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2024-10-12 21:32:30,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:32:30,264 INFO L225 Difference]: With dead ends: 6410 [2024-10-12 21:32:30,264 INFO L226 Difference]: Without dead ends: 5358 [2024-10-12 21:32:30,266 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=334, Invalid=998, Unknown=0, NotChecked=0, Total=1332 [2024-10-12 21:32:30,266 INFO L432 NwaCegarLoop]: 1519 mSDtfsCounter, 9497 mSDsluCounter, 3422 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9497 SdHoareTripleChecker+Valid, 4941 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-12 21:32:30,266 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9497 Valid, 4941 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-12 21:32:30,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5358 states. [2024-10-12 21:32:30,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5358 to 5208. [2024-10-12 21:32:30,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5208 states, 5206 states have (on average 1.4187475989243181) internal successors, (7386), 5207 states have internal predecessors, (7386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:30,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5208 states to 5208 states and 7386 transitions. [2024-10-12 21:32:30,356 INFO L78 Accepts]: Start accepts. Automaton has 5208 states and 7386 transitions. Word has length 97 [2024-10-12 21:32:30,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:32:30,357 INFO L471 AbstractCegarLoop]: Abstraction has 5208 states and 7386 transitions. [2024-10-12 21:32:30,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 12.8) internal successors, (256), 20 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:30,357 INFO L276 IsEmpty]: Start isEmpty. Operand 5208 states and 7386 transitions. [2024-10-12 21:32:30,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-10-12 21:32:30,358 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:32:30,358 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:32:30,371 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-12 21:32:30,558 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,SelfDestructingSolverStorable25 [2024-10-12 21:32:30,559 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:32:30,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:32:30,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1750557588, now seen corresponding path program 1 times [2024-10-12 21:32:30,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:32:30,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404451280] [2024-10-12 21:32:30,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:32:30,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:32:30,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:32:31,635 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:32:31,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:32:31,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404451280] [2024-10-12 21:32:31,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404451280] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 21:32:31,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169114536] [2024-10-12 21:32:31,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:32:31,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 21:32:31,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 21:32:31,637 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) [2024-10-12 21:32:31,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-12 21:32:31,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:32:31,746 INFO L255 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-12 21:32:31,749 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 21:32:32,758 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:32:32,758 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 21:32:35,078 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:32:35,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169114536] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 21:32:35,078 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 21:32:35,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14, 15] total 39 [2024-10-12 21:32:35,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383703883] [2024-10-12 21:32:35,079 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 21:32:35,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-10-12 21:32:35,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:32:35,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-10-12 21:32:35,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=1295, Unknown=0, NotChecked=0, Total=1482 [2024-10-12 21:32:35,080 INFO L87 Difference]: Start difference. First operand 5208 states and 7386 transitions. Second operand has 39 states, 39 states have (on average 6.666666666666667) internal successors, (260), 39 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:42,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:32:42,764 INFO L93 Difference]: Finished difference Result 14056 states and 19210 transitions. [2024-10-12 21:32:42,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2024-10-12 21:32:42,764 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 6.666666666666667) internal successors, (260), 39 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2024-10-12 21:32:42,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:32:42,775 INFO L225 Difference]: With dead ends: 14056 [2024-10-12 21:32:42,775 INFO L226 Difference]: Without dead ends: 11293 [2024-10-12 21:32:42,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3774 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=2206, Invalid=10226, Unknown=0, NotChecked=0, Total=12432 [2024-10-12 21:32:42,780 INFO L432 NwaCegarLoop]: 1509 mSDtfsCounter, 23385 mSDsluCounter, 11417 mSDsCounter, 0 mSdLazyCounter, 1976 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23385 SdHoareTripleChecker+Valid, 12926 SdHoareTripleChecker+Invalid, 2069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-12 21:32:42,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23385 Valid, 12926 Invalid, 2069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1976 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-12 21:32:42,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11293 states. [2024-10-12 21:32:42,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11293 to 8873. [2024-10-12 21:32:43,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8873 states, 8871 states have (on average 1.3767331755157255) internal successors, (12213), 8872 states have internal predecessors, (12213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:43,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8873 states to 8873 states and 12213 transitions. [2024-10-12 21:32:43,008 INFO L78 Accepts]: Start accepts. Automaton has 8873 states and 12213 transitions. Word has length 98 [2024-10-12 21:32:43,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:32:43,009 INFO L471 AbstractCegarLoop]: Abstraction has 8873 states and 12213 transitions. [2024-10-12 21:32:43,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 6.666666666666667) internal successors, (260), 39 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:43,009 INFO L276 IsEmpty]: Start isEmpty. Operand 8873 states and 12213 transitions. [2024-10-12 21:32:43,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-12 21:32:43,010 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:32:43,010 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:32:43,028 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-12 21:32:43,210 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,SelfDestructingSolverStorable26 [2024-10-12 21:32:43,211 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:32:43,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:32:43,211 INFO L85 PathProgramCache]: Analyzing trace with hash -84561202, now seen corresponding path program 1 times [2024-10-12 21:32:43,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:32:43,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301048272] [2024-10-12 21:32:43,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:32:43,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:32:43,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:32:43,465 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:32:43,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:32:43,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301048272] [2024-10-12 21:32:43,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301048272] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 21:32:43,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429306681] [2024-10-12 21:32:43,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:32:43,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 21:32:43,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 21:32:43,468 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) [2024-10-12 21:32:43,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-12 21:32:43,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:32:43,586 INFO L255 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-12 21:32:43,589 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 21:32:43,950 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:32:43,950 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 21:32:44,596 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:32:44,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429306681] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 21:32:44,596 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 21:32:44,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2024-10-12 21:32:44,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624426722] [2024-10-12 21:32:44,597 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 21:32:44,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-12 21:32:44,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:32:44,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-12 21:32:44,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2024-10-12 21:32:44,598 INFO L87 Difference]: Start difference. First operand 8873 states and 12213 transitions. Second operand has 22 states, 22 states have (on average 10.909090909090908) internal successors, (240), 21 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:45,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:32:45,156 INFO L93 Difference]: Finished difference Result 15297 states and 20698 transitions. [2024-10-12 21:32:45,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-12 21:32:45,157 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 10.909090909090908) internal successors, (240), 21 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-10-12 21:32:45,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:32:45,165 INFO L225 Difference]: With dead ends: 15297 [2024-10-12 21:32:45,165 INFO L226 Difference]: Without dead ends: 9069 [2024-10-12 21:32:45,169 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=253, Invalid=803, Unknown=0, NotChecked=0, Total=1056 [2024-10-12 21:32:45,169 INFO L432 NwaCegarLoop]: 1517 mSDtfsCounter, 13799 mSDsluCounter, 4928 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13799 SdHoareTripleChecker+Valid, 6445 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 21:32:45,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13799 Valid, 6445 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 21:32:45,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9069 states. [2024-10-12 21:32:45,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9069 to 8401. [2024-10-12 21:32:45,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8401 states, 8399 states have (on average 1.371591856173354) internal successors, (11520), 8400 states have internal predecessors, (11520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:45,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8401 states to 8401 states and 11520 transitions. [2024-10-12 21:32:45,375 INFO L78 Accepts]: Start accepts. Automaton has 8401 states and 11520 transitions. Word has length 99 [2024-10-12 21:32:45,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:32:45,375 INFO L471 AbstractCegarLoop]: Abstraction has 8401 states and 11520 transitions. [2024-10-12 21:32:45,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 10.909090909090908) internal successors, (240), 21 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:45,375 INFO L276 IsEmpty]: Start isEmpty. Operand 8401 states and 11520 transitions. [2024-10-12 21:32:45,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-12 21:32:45,376 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:32:45,376 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:32:45,389 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-12 21:32:45,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 21:32:45,581 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:32:45,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:32:45,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1131721522, now seen corresponding path program 1 times [2024-10-12 21:32:45,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:32:45,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016718899] [2024-10-12 21:32:45,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:32:45,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:32:45,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:32:45,823 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:32:45,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:32:45,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016718899] [2024-10-12 21:32:45,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016718899] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 21:32:45,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768249290] [2024-10-12 21:32:45,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:32:45,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 21:32:45,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 21:32:45,826 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) [2024-10-12 21:32:45,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-12 21:32:45,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:32:45,942 INFO L255 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-12 21:32:45,944 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 21:32:46,277 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:32:46,277 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 21:32:46,888 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:32:46,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768249290] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 21:32:46,888 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 21:32:46,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 25 [2024-10-12 21:32:46,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294565173] [2024-10-12 21:32:46,888 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 21:32:46,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-12 21:32:46,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:32:46,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-12 21:32:46,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=557, Unknown=0, NotChecked=0, Total=650 [2024-10-12 21:32:46,889 INFO L87 Difference]: Start difference. First operand 8401 states and 11520 transitions. Second operand has 26 states, 26 states have (on average 10.576923076923077) internal successors, (275), 25 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:48,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:32:48,523 INFO L93 Difference]: Finished difference Result 32384 states and 43007 transitions. [2024-10-12 21:32:48,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-10-12 21:32:48,524 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 10.576923076923077) internal successors, (275), 25 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-10-12 21:32:48,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:32:48,550 INFO L225 Difference]: With dead ends: 32384 [2024-10-12 21:32:48,550 INFO L226 Difference]: Without dead ends: 26728 [2024-10-12 21:32:48,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=698, Invalid=2494, Unknown=0, NotChecked=0, Total=3192 [2024-10-12 21:32:48,561 INFO L432 NwaCegarLoop]: 1534 mSDtfsCounter, 15945 mSDsluCounter, 6605 mSDsCounter, 0 mSdLazyCounter, 906 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15945 SdHoareTripleChecker+Valid, 8139 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-12 21:32:48,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15945 Valid, 8139 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 906 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-12 21:32:48,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26728 states. [2024-10-12 21:32:49,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26728 to 26460. [2024-10-12 21:32:49,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26460 states, 26458 states have (on average 1.3051628996900748) internal successors, (34532), 26459 states have internal predecessors, (34532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:49,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26460 states to 26460 states and 34532 transitions. [2024-10-12 21:32:49,510 INFO L78 Accepts]: Start accepts. Automaton has 26460 states and 34532 transitions. Word has length 99 [2024-10-12 21:32:49,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:32:49,511 INFO L471 AbstractCegarLoop]: Abstraction has 26460 states and 34532 transitions. [2024-10-12 21:32:49,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.576923076923077) internal successors, (275), 25 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:49,511 INFO L276 IsEmpty]: Start isEmpty. Operand 26460 states and 34532 transitions. [2024-10-12 21:32:49,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-12 21:32:49,512 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:32:49,513 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:32:49,525 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-12 21:32:49,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-10-12 21:32:49,713 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:32:49,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:32:49,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1840420014, now seen corresponding path program 1 times [2024-10-12 21:32:49,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:32:49,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414225615] [2024-10-12 21:32:49,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:32:49,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:32:49,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:32:50,382 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:32:50,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:32:50,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414225615] [2024-10-12 21:32:50,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414225615] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 21:32:50,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752817119] [2024-10-12 21:32:50,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:32:50,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 21:32:50,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 21:32:50,384 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) [2024-10-12 21:32:50,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-12 21:32:50,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:32:50,504 INFO L255 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-12 21:32:50,506 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 21:32:50,806 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:32:50,806 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 21:32:51,313 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:32:51,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [752817119] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 21:32:51,314 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 21:32:51,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 26 [2024-10-12 21:32:51,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744247166] [2024-10-12 21:32:51,314 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 21:32:51,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-10-12 21:32:51,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:32:51,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-10-12 21:32:51,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=611, Unknown=0, NotChecked=0, Total=702 [2024-10-12 21:32:51,315 INFO L87 Difference]: Start difference. First operand 26460 states and 34532 transitions. Second operand has 27 states, 27 states have (on average 10.11111111111111) internal successors, (273), 26 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:54,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:32:54,257 INFO L93 Difference]: Finished difference Result 75830 states and 98277 transitions. [2024-10-12 21:32:54,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-10-12 21:32:54,258 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 10.11111111111111) internal successors, (273), 26 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2024-10-12 21:32:54,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:32:54,316 INFO L225 Difference]: With dead ends: 75830 [2024-10-12 21:32:54,316 INFO L226 Difference]: Without dead ends: 53603 [2024-10-12 21:32:54,340 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 891 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=750, Invalid=3156, Unknown=0, NotChecked=0, Total=3906 [2024-10-12 21:32:54,341 INFO L432 NwaCegarLoop]: 1546 mSDtfsCounter, 14581 mSDsluCounter, 12932 mSDsCounter, 0 mSdLazyCounter, 1660 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14581 SdHoareTripleChecker+Valid, 14478 SdHoareTripleChecker+Invalid, 1691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-12 21:32:54,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14581 Valid, 14478 Invalid, 1691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1660 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-12 21:32:54,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53603 states. [2024-10-12 21:32:55,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53603 to 47189. [2024-10-12 21:32:55,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47189 states, 47187 states have (on average 1.2859685930446945) internal successors, (60681), 47188 states have internal predecessors, (60681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:56,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47189 states to 47189 states and 60681 transitions. [2024-10-12 21:32:56,049 INFO L78 Accepts]: Start accepts. Automaton has 47189 states and 60681 transitions. Word has length 101 [2024-10-12 21:32:56,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:32:56,049 INFO L471 AbstractCegarLoop]: Abstraction has 47189 states and 60681 transitions. [2024-10-12 21:32:56,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 10.11111111111111) internal successors, (273), 26 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 21:32:56,049 INFO L276 IsEmpty]: Start isEmpty. Operand 47189 states and 60681 transitions. [2024-10-12 21:32:56,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-12 21:32:56,051 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:32:56,051 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:32:56,065 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-12 21:32:56,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 21:32:56,252 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:32:56,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:32:56,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1324479828, now seen corresponding path program 1 times [2024-10-12 21:32:56,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:32:56,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249729326] [2024-10-12 21:32:56,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:32:56,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:32:56,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:32:56,848 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:32:56,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:32:56,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249729326] [2024-10-12 21:32:56,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249729326] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 21:32:56,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [642110229] [2024-10-12 21:32:56,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:32:56,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 21:32:56,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 21:32:56,851 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 21:32:56,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-12 21:32:56,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:32:56,975 INFO L255 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 83 conjuncts are in the unsatisfiable core [2024-10-12 21:32:56,977 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 21:33:04,303 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:33:04,303 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 21:33:14,933 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:33:14,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [642110229] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 21:33:14,934 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 21:33:14,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 40, 37] total 85 [2024-10-12 21:33:14,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240755791] [2024-10-12 21:33:14,934 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 21:33:14,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 85 states [2024-10-12 21:33:14,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:33:14,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2024-10-12 21:33:14,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=972, Invalid=6168, Unknown=0, NotChecked=0, Total=7140 [2024-10-12 21:33:14,936 INFO L87 Difference]: Start difference. First operand 47189 states and 60681 transitions. Second operand has 85 states, 85 states have (on average 3.388235294117647) internal successors, (288), 85 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)