./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_label02.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 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_label02.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 18046378c6d1547b773fdd7b2a077336efb6ec59b5b2498774315388e2558fbc --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 04:59:46,631 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 04:59:46,725 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 04:59:46,732 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 04:59:46,732 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 04:59:46,758 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 04:59:46,759 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 04:59:46,760 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 04:59:46,761 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 04:59:46,762 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 04:59:46,763 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 04:59:46,763 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 04:59:46,764 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 04:59:46,764 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 04:59:46,766 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 04:59:46,766 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 04:59:46,766 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 04:59:46,767 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 04:59:46,767 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 04:59:46,767 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 04:59:46,768 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 04:59:46,771 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 04:59:46,772 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 04:59:46,772 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 04:59:46,772 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 04:59:46,773 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 04:59:46,773 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 04:59:46,773 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 04:59:46,774 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 04:59:46,774 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 04:59:46,774 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 04:59:46,774 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 04:59:46,774 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 04:59:46,775 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 04:59:46,775 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 04:59:46,775 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 04:59:46,775 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 04:59:46,776 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 04:59:46,776 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 04:59:46,776 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 04:59:46,776 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 04:59:46,777 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 04:59:46,777 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18046378c6d1547b773fdd7b2a077336efb6ec59b5b2498774315388e2558fbc [2024-10-14 04:59:47,039 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 04:59:47,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 04:59:47,066 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 04:59:47,067 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 04:59:47,068 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 04:59:47,069 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label02.c [2024-10-14 04:59:48,614 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 04:59:49,120 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 04:59:49,122 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label02.c [2024-10-14 04:59:49,160 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8748609c0/538f30c7d28b43eabf96a4c410d42a93/FLAG1c382cecf [2024-10-14 04:59:49,180 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8748609c0/538f30c7d28b43eabf96a4c410d42a93 [2024-10-14 04:59:49,183 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 04:59:49,186 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 04:59:49,187 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 04:59:49,187 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 04:59:49,195 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 04:59:49,196 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:59:49" (1/1) ... [2024-10-14 04:59:49,197 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b55cd28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:59:49, skipping insertion in model container [2024-10-14 04:59:49,197 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:59:49" (1/1) ... [2024-10-14 04:59:49,358 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 04:59:49,660 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_label02.c[15519,15532] [2024-10-14 04:59:49,715 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_label02.c[22809,22822] [2024-10-14 04:59:50,361 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 04:59:50,372 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 04:59:50,410 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_label02.c[15519,15532] [2024-10-14 04:59:50,419 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label02.c[22809,22822] [2024-10-14 04:59:50,814 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 04:59:50,852 INFO L204 MainTranslator]: Completed translation [2024-10-14 04:59:50,853 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:59:50 WrapperNode [2024-10-14 04:59:50,853 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 04:59:50,854 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 04:59:50,854 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 04:59:50,854 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 04:59:50,862 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:59:50" (1/1) ... [2024-10-14 04:59:50,927 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:59:50" (1/1) ... [2024-10-14 04:59:51,301 INFO L138 Inliner]: procedures = 37, calls = 23, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 5160 [2024-10-14 04:59:51,303 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 04:59:51,303 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 04:59:51,304 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 04:59:51,304 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 04:59:51,314 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:59:50" (1/1) ... [2024-10-14 04:59:51,315 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:59:50" (1/1) ... [2024-10-14 04:59:51,396 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:59:50" (1/1) ... [2024-10-14 04:59:51,595 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]. [2024-10-14 04:59:51,595 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:59:50" (1/1) ... [2024-10-14 04:59:51,595 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:59:50" (1/1) ... [2024-10-14 04:59:51,745 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:59:50" (1/1) ... [2024-10-14 04:59:51,773 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:59:50" (1/1) ... [2024-10-14 04:59:51,792 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:59:50" (1/1) ... [2024-10-14 04:59:51,811 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:59:50" (1/1) ... [2024-10-14 04:59:51,878 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 04:59:51,879 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 04:59:51,880 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 04:59:51,880 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 04:59:51,881 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:59:50" (1/1) ... [2024-10-14 04:59:51,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 04:59:51,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:59:51,908 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) [2024-10-14 04:59:51,910 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 [2024-10-14 04:59:51,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 04:59:51,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 04:59:51,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 04:59:51,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 04:59:52,056 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 04:59:52,058 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 04:59:56,164 INFO L? ?]: Removed 749 outVars from TransFormulas that were not future-live. [2024-10-14 04:59:56,165 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 04:59:56,248 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 04:59:56,249 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-14 04:59:56,249 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:59:56 BoogieIcfgContainer [2024-10-14 04:59:56,250 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 04:59:56,285 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 04:59:56,286 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 04:59:56,294 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 04:59:56,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:59:49" (1/3) ... [2024-10-14 04:59:56,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b1419cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:59:56, skipping insertion in model container [2024-10-14 04:59:56,296 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:59:50" (2/3) ... [2024-10-14 04:59:56,297 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b1419cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:59:56, skipping insertion in model container [2024-10-14 04:59:56,297 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:59:56" (3/3) ... [2024-10-14 04:59:56,299 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label02.c [2024-10-14 04:59:56,319 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 04:59:56,319 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-14 04:59:56,437 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 04:59:56,447 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;@4d2ce0a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 04:59:56,448 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-14 04:59:56,457 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) [2024-10-14 04:59:56,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-14 04:59:56,465 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:59:56,466 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] [2024-10-14 04:59:56,466 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:59:56,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:59:56,471 INFO L85 PathProgramCache]: Analyzing trace with hash -304708079, now seen corresponding path program 1 times [2024-10-14 04:59:56,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:59:56,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225288316] [2024-10-14 04:59:56,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:59:56,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:59:56,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:59:56,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:59:56,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:59:56,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225288316] [2024-10-14 04:59:56,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225288316] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:59:56,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:59:56,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 04:59:56,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999908018] [2024-10-14 04:59:56,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:59:56,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 04:59:56,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:59:56,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 04:59:56,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 04:59:56,790 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) [2024-10-14 04:59:56,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:59:56,897 INFO L93 Difference]: Finished difference Result 1654 states and 3254 transitions. [2024-10-14 04:59:56,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 04:59:56,903 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 [2024-10-14 04:59:56,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:59:56,929 INFO L225 Difference]: With dead ends: 1654 [2024-10-14 04:59:56,929 INFO L226 Difference]: Without dead ends: 845 [2024-10-14 04:59:56,939 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 [2024-10-14 04:59:56,944 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 [2024-10-14 04:59:56,945 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] [2024-10-14 04:59:56,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2024-10-14 04:59:57,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 845. [2024-10-14 04:59:57,032 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) [2024-10-14 04:59:57,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1599 transitions. [2024-10-14 04:59:57,036 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1599 transitions. Word has length 23 [2024-10-14 04:59:57,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:59:57,037 INFO L471 AbstractCegarLoop]: Abstraction has 845 states and 1599 transitions. [2024-10-14 04:59:57,037 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) [2024-10-14 04:59:57,037 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1599 transitions. [2024-10-14 04:59:57,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-14 04:59:57,039 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:59:57,040 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:59:57,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 04:59:57,040 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:59:57,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:59:57,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1993651821, now seen corresponding path program 1 times [2024-10-14 04:59:57,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:59:57,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068690284] [2024-10-14 04:59:57,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:59:57,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:59:57,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:59:57,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:59:57,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:59:57,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068690284] [2024-10-14 04:59:57,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068690284] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:59:57,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:59:57,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 04:59:57,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739671271] [2024-10-14 04:59:57,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:59:57,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 04:59:57,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:59:57,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 04:59:57,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 04:59:57,278 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) [2024-10-14 04:59:57,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:59:57,366 INFO L93 Difference]: Finished difference Result 895 states and 1678 transitions. [2024-10-14 04:59:57,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 04:59:57,367 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 [2024-10-14 04:59:57,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:59:57,370 INFO L225 Difference]: With dead ends: 895 [2024-10-14 04:59:57,370 INFO L226 Difference]: Without dead ends: 845 [2024-10-14 04:59:57,371 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 [2024-10-14 04:59:57,372 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 [2024-10-14 04:59:57,373 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] [2024-10-14 04:59:57,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2024-10-14 04:59:57,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 845. [2024-10-14 04:59:57,387 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) [2024-10-14 04:59:57,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1559 transitions. [2024-10-14 04:59:57,390 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1559 transitions. Word has length 23 [2024-10-14 04:59:57,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:59:57,390 INFO L471 AbstractCegarLoop]: Abstraction has 845 states and 1559 transitions. [2024-10-14 04:59:57,390 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) [2024-10-14 04:59:57,390 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1559 transitions. [2024-10-14 04:59:57,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-14 04:59:57,392 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:59:57,392 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] [2024-10-14 04:59:57,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 04:59:57,393 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:59:57,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:59:57,393 INFO L85 PathProgramCache]: Analyzing trace with hash -399524715, now seen corresponding path program 1 times [2024-10-14 04:59:57,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:59:57,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891898175] [2024-10-14 04:59:57,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:59:57,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:59:57,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:59:57,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:59:57,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:59:57,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891898175] [2024-10-14 04:59:57,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891898175] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:59:57,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:59:57,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 04:59:57,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295738644] [2024-10-14 04:59:57,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:59:57,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 04:59:57,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:59:57,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 04:59:57,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-14 04:59:57,695 INFO L87 Difference]: Start difference. First operand 845 states and 1559 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) [2024-10-14 04:59:58,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:59:58,118 INFO L93 Difference]: Finished difference Result 1409 states and 2471 transitions. [2024-10-14 04:59:58,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 04:59:58,119 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 [2024-10-14 04:59:58,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:59:58,126 INFO L225 Difference]: With dead ends: 1409 [2024-10-14 04:59:58,127 INFO L226 Difference]: Without dead ends: 1362 [2024-10-14 04:59:58,129 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 [2024-10-14 04:59:58,130 INFO L432 NwaCegarLoop]: 1552 mSDtfsCounter, 9675 mSDsluCounter, 2072 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:59:58,132 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9675 Valid, 3624 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 04:59:58,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2024-10-14 04:59:58,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 890. [2024-10-14 04:59:58,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 890 states, 888 states have (on average 1.837837837837838) internal successors, (1632), 889 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:59:58,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 890 states to 890 states and 1632 transitions. [2024-10-14 04:59:58,157 INFO L78 Accepts]: Start accepts. Automaton has 890 states and 1632 transitions. Word has length 62 [2024-10-14 04:59:58,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:59:58,160 INFO L471 AbstractCegarLoop]: Abstraction has 890 states and 1632 transitions. [2024-10-14 04:59:58,160 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) [2024-10-14 04:59:58,160 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states and 1632 transitions. [2024-10-14 04:59:58,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-14 04:59:58,165 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:59:58,165 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] [2024-10-14 04:59:58,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 04:59:58,165 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:59:58,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:59:58,166 INFO L85 PathProgramCache]: Analyzing trace with hash -382311835, now seen corresponding path program 1 times [2024-10-14 04:59:58,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:59:58,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773348734] [2024-10-14 04:59:58,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:59:58,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:59:58,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:59:58,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:59:58,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:59:58,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773348734] [2024-10-14 04:59:58,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773348734] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:59:58,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:59:58,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:59:58,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990956739] [2024-10-14 04:59:58,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:59:58,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 04:59:58,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:59:58,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 04:59:58,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 04:59:58,331 INFO L87 Difference]: Start difference. First operand 890 states and 1632 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 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) [2024-10-14 05:00:03,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:00:03,853 INFO L93 Difference]: Finished difference Result 3145 states and 5941 transitions. [2024-10-14 05:00:03,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 05:00:03,855 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 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 [2024-10-14 05:00:03,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:00:03,872 INFO L225 Difference]: With dead ends: 3145 [2024-10-14 05:00:03,872 INFO L226 Difference]: Without dead ends: 2392 [2024-10-14 05:00:03,875 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 [2024-10-14 05:00:03,875 INFO L432 NwaCegarLoop]: 792 mSDtfsCounter, 2428 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5357 mSolverCounterSat, 1153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2428 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, 5.4s IncrementalHoareTripleChecker+Time [2024-10-14 05:00:03,878 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2428 Valid, 810 Invalid, 6510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1153 Valid, 5357 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-10-14 05:00:03,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2392 states. [2024-10-14 05:00:03,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2392 to 2392. [2024-10-14 05:00:03,921 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) [2024-10-14 05:00:03,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2392 states to 2392 states and 3746 transitions. [2024-10-14 05:00:03,929 INFO L78 Accepts]: Start accepts. Automaton has 2392 states and 3746 transitions. Word has length 62 [2024-10-14 05:00:03,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:00:03,931 INFO L471 AbstractCegarLoop]: Abstraction has 2392 states and 3746 transitions. [2024-10-14 05:00:03,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 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) [2024-10-14 05:00:03,932 INFO L276 IsEmpty]: Start isEmpty. Operand 2392 states and 3746 transitions. [2024-10-14 05:00:03,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-14 05:00:03,936 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:00:03,936 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] [2024-10-14 05:00:03,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 05:00:03,937 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:00:03,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:00:03,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1824915739, now seen corresponding path program 1 times [2024-10-14 05:00:03,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:00:03,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77924634] [2024-10-14 05:00:03,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:00:03,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:00:03,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:00:04,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:00:04,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:00:04,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77924634] [2024-10-14 05:00:04,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77924634] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:00:04,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:00:04,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:00:04,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290289901] [2024-10-14 05:00:04,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:00:04,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:00:04,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:00:04,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:00:04,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:00:04,048 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) [2024-10-14 05:00:04,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:00:04,092 INFO L93 Difference]: Finished difference Result 2565 states and 4025 transitions. [2024-10-14 05:00:04,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:00:04,093 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 [2024-10-14 05:00:04,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:00:04,102 INFO L225 Difference]: With dead ends: 2565 [2024-10-14 05:00:04,102 INFO L226 Difference]: Without dead ends: 2473 [2024-10-14 05:00:04,103 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 [2024-10-14 05:00:04,104 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 [2024-10-14 05:00:04,104 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] [2024-10-14 05:00:04,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2473 states. [2024-10-14 05:00:04,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2473 to 2471. [2024-10-14 05:00:04,144 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) [2024-10-14 05:00:04,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2471 states to 2471 states and 3872 transitions. [2024-10-14 05:00:04,152 INFO L78 Accepts]: Start accepts. Automaton has 2471 states and 3872 transitions. Word has length 64 [2024-10-14 05:00:04,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:00:04,154 INFO L471 AbstractCegarLoop]: Abstraction has 2471 states and 3872 transitions. [2024-10-14 05:00:04,154 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) [2024-10-14 05:00:04,154 INFO L276 IsEmpty]: Start isEmpty. Operand 2471 states and 3872 transitions. [2024-10-14 05:00:04,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-14 05:00:04,157 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:00:04,157 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] [2024-10-14 05:00:04,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 05:00:04,158 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:00:04,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:00:04,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1822770787, now seen corresponding path program 1 times [2024-10-14 05:00:04,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:00:04,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409261781] [2024-10-14 05:00:04,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:00:04,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:00:04,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:00:04,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:00:04,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:00:04,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409261781] [2024-10-14 05:00:04,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409261781] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:00:04,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:00:04,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 05:00:04,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683357519] [2024-10-14 05:00:04,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:00:04,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 05:00:04,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:00:04,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 05:00:04,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-14 05:00:04,553 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) [2024-10-14 05:00:04,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:00:04,823 INFO L93 Difference]: Finished difference Result 2644 states and 4148 transitions. [2024-10-14 05:00:04,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 05:00:04,824 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 [2024-10-14 05:00:04,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:00:04,833 INFO L225 Difference]: With dead ends: 2644 [2024-10-14 05:00:04,833 INFO L226 Difference]: Without dead ends: 2473 [2024-10-14 05:00:04,835 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 [2024-10-14 05:00:04,836 INFO L432 NwaCegarLoop]: 1548 mSDtfsCounter, 1530 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1530 SdHoareTripleChecker+Valid, 1983 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 05:00:04,837 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1530 Valid, 1983 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 05:00:04,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2473 states. [2024-10-14 05:00:04,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2473 to 2471. [2024-10-14 05:00:04,891 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) [2024-10-14 05:00:04,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2471 states to 2471 states and 3870 transitions. [2024-10-14 05:00:04,899 INFO L78 Accepts]: Start accepts. Automaton has 2471 states and 3870 transitions. Word has length 64 [2024-10-14 05:00:04,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:00:04,900 INFO L471 AbstractCegarLoop]: Abstraction has 2471 states and 3870 transitions. [2024-10-14 05:00:04,901 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) [2024-10-14 05:00:04,901 INFO L276 IsEmpty]: Start isEmpty. Operand 2471 states and 3870 transitions. [2024-10-14 05:00:04,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-14 05:00:04,902 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:00:04,902 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] [2024-10-14 05:00:04,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 05:00:04,902 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:00:04,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:00:04,903 INFO L85 PathProgramCache]: Analyzing trace with hash -800020118, now seen corresponding path program 1 times [2024-10-14 05:00:04,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:00:04,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002978695] [2024-10-14 05:00:04,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:00:04,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:00:04,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:00:05,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:00:05,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:00:05,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002978695] [2024-10-14 05:00:05,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002978695] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:00:05,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:00:05,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 05:00:05,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060456102] [2024-10-14 05:00:05,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:00:05,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 05:00:05,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:00:05,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 05:00:05,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 05:00:05,063 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) [2024-10-14 05:00:05,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:00:05,109 INFO L93 Difference]: Finished difference Result 2477 states and 3877 transitions. [2024-10-14 05:00:05,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 05:00:05,110 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 [2024-10-14 05:00:05,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:00:05,119 INFO L225 Difference]: With dead ends: 2477 [2024-10-14 05:00:05,120 INFO L226 Difference]: Without dead ends: 2475 [2024-10-14 05:00:05,122 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 [2024-10-14 05:00:05,122 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 [2024-10-14 05:00:05,122 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] [2024-10-14 05:00:05,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2475 states. [2024-10-14 05:00:05,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2475 to 2475. [2024-10-14 05:00:05,170 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) [2024-10-14 05:00:05,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2475 states to 2475 states and 3873 transitions. [2024-10-14 05:00:05,179 INFO L78 Accepts]: Start accepts. Automaton has 2475 states and 3873 transitions. Word has length 65 [2024-10-14 05:00:05,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:00:05,179 INFO L471 AbstractCegarLoop]: Abstraction has 2475 states and 3873 transitions. [2024-10-14 05:00:05,179 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) [2024-10-14 05:00:05,180 INFO L276 IsEmpty]: Start isEmpty. Operand 2475 states and 3873 transitions. [2024-10-14 05:00:05,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-14 05:00:05,181 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:00:05,182 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:00:05,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 05:00:05,182 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:00:05,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:00:05,183 INFO L85 PathProgramCache]: Analyzing trace with hash 306459741, now seen corresponding path program 1 times [2024-10-14 05:00:05,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:00:05,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851666712] [2024-10-14 05:00:05,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:00:05,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:00:05,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:00:05,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:00:05,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:00:05,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851666712] [2024-10-14 05:00:05,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851666712] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:00:05,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:00:05,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:00:05,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588862385] [2024-10-14 05:00:05,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:00:05,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:00:05,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:00:05,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:00:05,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:00:05,249 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) [2024-10-14 05:00:05,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:00:05,287 INFO L93 Difference]: Finished difference Result 2661 states and 4166 transitions. [2024-10-14 05:00:05,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:00:05,288 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 [2024-10-14 05:00:05,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:00:05,296 INFO L225 Difference]: With dead ends: 2661 [2024-10-14 05:00:05,297 INFO L226 Difference]: Without dead ends: 2565 [2024-10-14 05:00:05,298 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 [2024-10-14 05:00:05,298 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 [2024-10-14 05:00:05,298 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] [2024-10-14 05:00:05,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2565 states. [2024-10-14 05:00:05,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2565 to 2563. [2024-10-14 05:00:05,339 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) [2024-10-14 05:00:05,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2563 states to 2563 states and 4010 transitions. [2024-10-14 05:00:05,347 INFO L78 Accepts]: Start accepts. Automaton has 2563 states and 4010 transitions. Word has length 66 [2024-10-14 05:00:05,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:00:05,347 INFO L471 AbstractCegarLoop]: Abstraction has 2563 states and 4010 transitions. [2024-10-14 05:00:05,347 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) [2024-10-14 05:00:05,348 INFO L276 IsEmpty]: Start isEmpty. Operand 2563 states and 4010 transitions. [2024-10-14 05:00:05,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-14 05:00:05,348 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:00:05,349 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] [2024-10-14 05:00:05,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 05:00:05,349 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:00:05,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:00:05,350 INFO L85 PathProgramCache]: Analyzing trace with hash -103926947, now seen corresponding path program 1 times [2024-10-14 05:00:05,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:00:05,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374618683] [2024-10-14 05:00:05,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:00:05,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:00:05,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:00:05,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:00:05,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:00:05,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374618683] [2024-10-14 05:00:05,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374618683] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:00:05,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:00:05,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:00:05,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493081318] [2024-10-14 05:00:05,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:00:05,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:00:05,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:00:05,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:00:05,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:00:05,419 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) [2024-10-14 05:00:05,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:00:05,460 INFO L93 Difference]: Finished difference Result 3061 states and 4790 transitions. [2024-10-14 05:00:05,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:00:05,461 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 [2024-10-14 05:00:05,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:00:05,472 INFO L225 Difference]: With dead ends: 3061 [2024-10-14 05:00:05,472 INFO L226 Difference]: Without dead ends: 2800 [2024-10-14 05:00:05,473 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 [2024-10-14 05:00:05,474 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 [2024-10-14 05:00:05,474 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] [2024-10-14 05:00:05,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2800 states. [2024-10-14 05:00:05,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2800 to 2798. [2024-10-14 05:00:05,581 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) [2024-10-14 05:00:05,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 4372 transitions. [2024-10-14 05:00:05,589 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 4372 transitions. Word has length 66 [2024-10-14 05:00:05,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:00:05,589 INFO L471 AbstractCegarLoop]: Abstraction has 2798 states and 4372 transitions. [2024-10-14 05:00:05,590 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) [2024-10-14 05:00:05,590 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 4372 transitions. [2024-10-14 05:00:05,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-14 05:00:05,590 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:00:05,591 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] [2024-10-14 05:00:05,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 05:00:05,591 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:00:05,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:00:05,592 INFO L85 PathProgramCache]: Analyzing trace with hash -332566179, now seen corresponding path program 1 times [2024-10-14 05:00:05,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:00:05,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256749432] [2024-10-14 05:00:05,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:00:05,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:00:05,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:00:05,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:00:05,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:00:05,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256749432] [2024-10-14 05:00:05,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256749432] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:00:05,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:00:05,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:00:05,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842498722] [2024-10-14 05:00:05,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:00:05,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:00:05,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:00:05,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:00:05,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:00:05,650 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) [2024-10-14 05:00:05,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:00:05,695 INFO L93 Difference]: Finished difference Result 3742 states and 5834 transitions. [2024-10-14 05:00:05,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:00:05,696 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 [2024-10-14 05:00:05,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:00:05,707 INFO L225 Difference]: With dead ends: 3742 [2024-10-14 05:00:05,707 INFO L226 Difference]: Without dead ends: 3246 [2024-10-14 05:00:05,709 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 [2024-10-14 05:00:05,710 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 [2024-10-14 05:00:05,711 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] [2024-10-14 05:00:05,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3246 states. [2024-10-14 05:00:05,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3246 to 3244. [2024-10-14 05:00:05,771 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) [2024-10-14 05:00:05,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3244 states to 3244 states and 5048 transitions. [2024-10-14 05:00:05,782 INFO L78 Accepts]: Start accepts. Automaton has 3244 states and 5048 transitions. Word has length 66 [2024-10-14 05:00:05,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:00:05,783 INFO L471 AbstractCegarLoop]: Abstraction has 3244 states and 5048 transitions. [2024-10-14 05:00:05,783 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) [2024-10-14 05:00:05,783 INFO L276 IsEmpty]: Start isEmpty. Operand 3244 states and 5048 transitions. [2024-10-14 05:00:05,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-14 05:00:05,784 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:00:05,784 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] [2024-10-14 05:00:05,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 05:00:05,784 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:00:05,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:00:05,785 INFO L85 PathProgramCache]: Analyzing trace with hash -958222243, now seen corresponding path program 1 times [2024-10-14 05:00:05,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:00:05,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871992791] [2024-10-14 05:00:05,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:00:05,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:00:05,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:00:05,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:00:05,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:00:05,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871992791] [2024-10-14 05:00:05,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871992791] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:00:05,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:00:05,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:00:05,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131519596] [2024-10-14 05:00:05,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:00:05,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:00:05,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:00:05,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:00:05,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:00:05,843 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) [2024-10-14 05:00:05,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:00:05,909 INFO L93 Difference]: Finished difference Result 5032 states and 7778 transitions. [2024-10-14 05:00:05,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:00:05,910 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 [2024-10-14 05:00:05,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:00:05,925 INFO L225 Difference]: With dead ends: 5032 [2024-10-14 05:00:05,926 INFO L226 Difference]: Without dead ends: 4090 [2024-10-14 05:00:05,928 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 [2024-10-14 05:00:05,929 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 [2024-10-14 05:00:05,929 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] [2024-10-14 05:00:05,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4090 states. [2024-10-14 05:00:06,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4090 to 4088. [2024-10-14 05:00:06,012 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) [2024-10-14 05:00:06,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4088 states to 4088 states and 6304 transitions. [2024-10-14 05:00:06,027 INFO L78 Accepts]: Start accepts. Automaton has 4088 states and 6304 transitions. Word has length 66 [2024-10-14 05:00:06,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:00:06,028 INFO L471 AbstractCegarLoop]: Abstraction has 4088 states and 6304 transitions. [2024-10-14 05:00:06,028 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) [2024-10-14 05:00:06,028 INFO L276 IsEmpty]: Start isEmpty. Operand 4088 states and 6304 transitions. [2024-10-14 05:00:06,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-14 05:00:06,029 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:00:06,029 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] [2024-10-14 05:00:06,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 05:00:06,029 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:00:06,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:00:06,030 INFO L85 PathProgramCache]: Analyzing trace with hash -69488803, now seen corresponding path program 1 times [2024-10-14 05:00:06,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:00:06,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639424130] [2024-10-14 05:00:06,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:00:06,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:00:06,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:00:06,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:00:06,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:00:06,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639424130] [2024-10-14 05:00:06,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639424130] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:00:06,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:00:06,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:00:06,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923428250] [2024-10-14 05:00:06,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:00:06,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:00:06,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:00:06,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:00:06,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:00:06,092 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) [2024-10-14 05:00:06,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:00:06,188 INFO L93 Difference]: Finished difference Result 7468 states and 11378 transitions. [2024-10-14 05:00:06,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:00:06,189 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 [2024-10-14 05:00:06,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:00:06,212 INFO L225 Difference]: With dead ends: 7468 [2024-10-14 05:00:06,212 INFO L226 Difference]: Without dead ends: 5682 [2024-10-14 05:00:06,222 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 [2024-10-14 05:00:06,223 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 [2024-10-14 05:00:06,223 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] [2024-10-14 05:00:06,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5682 states. [2024-10-14 05:00:06,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5682 to 5680. [2024-10-14 05:00:06,352 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) [2024-10-14 05:00:06,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5680 states to 5680 states and 8624 transitions. [2024-10-14 05:00:06,368 INFO L78 Accepts]: Start accepts. Automaton has 5680 states and 8624 transitions. Word has length 66 [2024-10-14 05:00:06,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:00:06,369 INFO L471 AbstractCegarLoop]: Abstraction has 5680 states and 8624 transitions. [2024-10-14 05:00:06,369 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) [2024-10-14 05:00:06,370 INFO L276 IsEmpty]: Start isEmpty. Operand 5680 states and 8624 transitions. [2024-10-14 05:00:06,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-14 05:00:06,370 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:00:06,370 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] [2024-10-14 05:00:06,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 05:00:06,371 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:00:06,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:00:06,371 INFO L85 PathProgramCache]: Analyzing trace with hash -372510115, now seen corresponding path program 1 times [2024-10-14 05:00:06,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:00:06,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573029204] [2024-10-14 05:00:06,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:00:06,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:00:06,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:00:06,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:00:06,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:00:06,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573029204] [2024-10-14 05:00:06,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573029204] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:00:06,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:00:06,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:00:06,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370217863] [2024-10-14 05:00:06,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:00:06,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:00:06,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:00:06,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:00:06,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:00:06,434 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) [2024-10-14 05:00:06,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:00:06,568 INFO L93 Difference]: Finished difference Result 12052 states and 18002 transitions. [2024-10-14 05:00:06,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:00:06,569 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 [2024-10-14 05:00:06,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:00:06,588 INFO L225 Difference]: With dead ends: 12052 [2024-10-14 05:00:06,588 INFO L226 Difference]: Without dead ends: 8674 [2024-10-14 05:00:06,595 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 [2024-10-14 05:00:06,596 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 [2024-10-14 05:00:06,597 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] [2024-10-14 05:00:06,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8674 states. [2024-10-14 05:00:06,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8674 to 8672. [2024-10-14 05:00:06,862 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) [2024-10-14 05:00:06,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8672 states to 8672 states and 12880 transitions. [2024-10-14 05:00:06,886 INFO L78 Accepts]: Start accepts. Automaton has 8672 states and 12880 transitions. Word has length 66 [2024-10-14 05:00:06,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:00:06,886 INFO L471 AbstractCegarLoop]: Abstraction has 8672 states and 12880 transitions. [2024-10-14 05:00:06,887 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) [2024-10-14 05:00:06,887 INFO L276 IsEmpty]: Start isEmpty. Operand 8672 states and 12880 transitions. [2024-10-14 05:00:06,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-14 05:00:06,890 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:00:06,890 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] [2024-10-14 05:00:06,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 05:00:06,890 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:00:06,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:00:06,891 INFO L85 PathProgramCache]: Analyzing trace with hash -956920740, now seen corresponding path program 1 times [2024-10-14 05:00:06,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:00:06,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722179036] [2024-10-14 05:00:06,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:00:06,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:00:06,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:00:07,088 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 05:00:07,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:00:07,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722179036] [2024-10-14 05:00:07,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722179036] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:00:07,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:00:07,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 05:00:07,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838240009] [2024-10-14 05:00:07,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:00:07,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 05:00:07,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:00:07,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 05:00:07,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-14 05:00:07,091 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) [2024-10-14 05:00:08,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:00:08,211 INFO L93 Difference]: Finished difference Result 46318 states and 67703 transitions. [2024-10-14 05:00:08,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 05:00:08,212 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 [2024-10-14 05:00:08,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:00:08,308 INFO L225 Difference]: With dead ends: 46318 [2024-10-14 05:00:08,309 INFO L226 Difference]: Without dead ends: 41836 [2024-10-14 05:00:08,329 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 [2024-10-14 05:00:08,330 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 [2024-10-14 05:00:08,330 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] [2024-10-14 05:00:08,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41836 states. [2024-10-14 05:00:09,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41836 to 14112. [2024-10-14 05:00:09,039 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) [2024-10-14 05:00:09,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14112 states to 14112 states and 20720 transitions. [2024-10-14 05:00:09,081 INFO L78 Accepts]: Start accepts. Automaton has 14112 states and 20720 transitions. Word has length 86 [2024-10-14 05:00:09,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:00:09,082 INFO L471 AbstractCegarLoop]: Abstraction has 14112 states and 20720 transitions. [2024-10-14 05:00:09,082 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) [2024-10-14 05:00:09,083 INFO L276 IsEmpty]: Start isEmpty. Operand 14112 states and 20720 transitions. [2024-10-14 05:00:09,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-14 05:00:09,086 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:00:09,086 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] [2024-10-14 05:00:09,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 05:00:09,086 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:00:09,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:00:09,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1367307428, now seen corresponding path program 1 times [2024-10-14 05:00:09,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:00:09,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578635606] [2024-10-14 05:00:09,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:00:09,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:00:09,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:00:09,329 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 05:00:09,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:00:09,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578635606] [2024-10-14 05:00:09,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578635606] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:00:09,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:00:09,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 05:00:09,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017261928] [2024-10-14 05:00:09,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:00:09,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 05:00:09,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:00:09,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 05:00:09,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-14 05:00:09,332 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) [2024-10-14 05:00:10,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:00:10,555 INFO L93 Difference]: Finished difference Result 52686 states and 76919 transitions. [2024-10-14 05:00:10,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 05:00:10,555 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 [2024-10-14 05:00:10,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:00:10,659 INFO L225 Difference]: With dead ends: 52686 [2024-10-14 05:00:10,659 INFO L226 Difference]: Without dead ends: 46316 [2024-10-14 05:00:10,685 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 [2024-10-14 05:00:10,686 INFO L432 NwaCegarLoop]: 1627 mSDtfsCounter, 8063 mSDsluCounter, 2308 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8063 SdHoareTripleChecker+Valid, 3935 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 05:00:10,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8063 Valid, 3935 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 05:00:10,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46316 states. [2024-10-14 05:00:11,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46316 to 22720. [2024-10-14 05:00:11,799 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) [2024-10-14 05:00:11,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22720 states to 22720 states and 33104 transitions. [2024-10-14 05:00:11,855 INFO L78 Accepts]: Start accepts. Automaton has 22720 states and 33104 transitions. Word has length 86 [2024-10-14 05:00:11,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:00:11,855 INFO L471 AbstractCegarLoop]: Abstraction has 22720 states and 33104 transitions. [2024-10-14 05:00:11,856 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) [2024-10-14 05:00:11,856 INFO L276 IsEmpty]: Start isEmpty. Operand 22720 states and 33104 transitions. [2024-10-14 05:00:11,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-14 05:00:11,861 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:00:11,862 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] [2024-10-14 05:00:11,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 05:00:11,862 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:00:11,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:00:11,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1595946660, now seen corresponding path program 1 times [2024-10-14 05:00:11,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:00:11,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723445353] [2024-10-14 05:00:11,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:00:11,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:00:11,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:00:12,067 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-14 05:00:12,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:00:12,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723445353] [2024-10-14 05:00:12,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723445353] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:00:12,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:00:12,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 05:00:12,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024650235] [2024-10-14 05:00:12,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:00:12,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 05:00:12,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:00:12,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 05:00:12,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-14 05:00:12,070 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) [2024-10-14 05:00:13,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:00:13,675 INFO L93 Difference]: Finished difference Result 59054 states and 86103 transitions. [2024-10-14 05:00:13,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 05:00:13,676 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 [2024-10-14 05:00:13,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:00:13,826 INFO L225 Difference]: With dead ends: 59054 [2024-10-14 05:00:13,827 INFO L226 Difference]: Without dead ends: 52684 [2024-10-14 05:00:13,857 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 [2024-10-14 05:00:13,858 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 [2024-10-14 05:00:13,858 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] [2024-10-14 05:00:13,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52684 states. [2024-10-14 05:00:15,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52684 to 29088. [2024-10-14 05:00:15,368 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) [2024-10-14 05:00:15,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29088 states to 29088 states and 42288 transitions. [2024-10-14 05:00:15,453 INFO L78 Accepts]: Start accepts. Automaton has 29088 states and 42288 transitions. Word has length 86 [2024-10-14 05:00:15,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:00:15,454 INFO L471 AbstractCegarLoop]: Abstraction has 29088 states and 42288 transitions. [2024-10-14 05:00:15,454 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) [2024-10-14 05:00:15,454 INFO L276 IsEmpty]: Start isEmpty. Operand 29088 states and 42288 transitions. [2024-10-14 05:00:15,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-14 05:00:15,459 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:00:15,459 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] [2024-10-14 05:00:15,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 05:00:15,459 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:00:15,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:00:15,460 INFO L85 PathProgramCache]: Analyzing trace with hash 2073364572, now seen corresponding path program 1 times [2024-10-14 05:00:15,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:00:15,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088115313] [2024-10-14 05:00:15,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:00:15,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:00:15,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:00:15,655 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-14 05:00:15,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:00:15,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088115313] [2024-10-14 05:00:15,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088115313] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:00:15,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:00:15,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 05:00:15,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111602769] [2024-10-14 05:00:15,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:00:15,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 05:00:15,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:00:15,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 05:00:15,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-14 05:00:15,658 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) [2024-10-14 05:00:17,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:00:17,455 INFO L93 Difference]: Finished difference Result 65422 states and 95287 transitions. [2024-10-14 05:00:17,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 05:00:17,456 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 [2024-10-14 05:00:17,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:00:17,587 INFO L225 Difference]: With dead ends: 65422 [2024-10-14 05:00:17,587 INFO L226 Difference]: Without dead ends: 59052 [2024-10-14 05:00:17,612 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 [2024-10-14 05:00:17,613 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 [2024-10-14 05:00:17,614 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] [2024-10-14 05:00:17,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59052 states. [2024-10-14 05:00:18,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59052 to 35456. [2024-10-14 05:00:18,934 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) [2024-10-14 05:00:19,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35456 states to 35456 states and 51472 transitions. [2024-10-14 05:00:19,006 INFO L78 Accepts]: Start accepts. Automaton has 35456 states and 51472 transitions. Word has length 86 [2024-10-14 05:00:19,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:00:19,009 INFO L471 AbstractCegarLoop]: Abstraction has 35456 states and 51472 transitions. [2024-10-14 05:00:19,009 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) [2024-10-14 05:00:19,009 INFO L276 IsEmpty]: Start isEmpty. Operand 35456 states and 51472 transitions. [2024-10-14 05:00:19,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-14 05:00:19,016 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:00:19,017 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] [2024-10-14 05:00:19,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 05:00:19,017 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:00:19,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:00:19,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1332869284, now seen corresponding path program 1 times [2024-10-14 05:00:19,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:00:19,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455071448] [2024-10-14 05:00:19,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:00:19,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:00:19,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:00:19,214 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 05:00:19,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:00:19,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455071448] [2024-10-14 05:00:19,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455071448] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:00:19,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:00:19,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 05:00:19,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935864226] [2024-10-14 05:00:19,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:00:19,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 05:00:19,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:00:19,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 05:00:19,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-14 05:00:19,217 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) [2024-10-14 05:00:21,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:00:21,022 INFO L93 Difference]: Finished difference Result 71790 states and 104471 transitions. [2024-10-14 05:00:21,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 05:00:21,022 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 [2024-10-14 05:00:21,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:00:21,144 INFO L225 Difference]: With dead ends: 71790 [2024-10-14 05:00:21,145 INFO L226 Difference]: Without dead ends: 65420 [2024-10-14 05:00:21,166 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 [2024-10-14 05:00:21,167 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 [2024-10-14 05:00:21,167 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] [2024-10-14 05:00:21,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65420 states. [2024-10-14 05:00:22,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65420 to 41824. [2024-10-14 05:00:22,487 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) [2024-10-14 05:00:22,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41824 states to 41824 states and 60656 transitions. [2024-10-14 05:00:22,556 INFO L78 Accepts]: Start accepts. Automaton has 41824 states and 60656 transitions. Word has length 86 [2024-10-14 05:00:22,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:00:22,557 INFO L471 AbstractCegarLoop]: Abstraction has 41824 states and 60656 transitions. [2024-10-14 05:00:22,557 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) [2024-10-14 05:00:22,557 INFO L276 IsEmpty]: Start isEmpty. Operand 41824 states and 60656 transitions. [2024-10-14 05:00:22,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-14 05:00:22,561 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:00:22,561 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] [2024-10-14 05:00:22,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 05:00:22,562 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:00:22,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:00:22,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1635890596, now seen corresponding path program 1 times [2024-10-14 05:00:22,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:00:22,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002541993] [2024-10-14 05:00:22,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:00:22,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:00:22,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:00:22,754 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-14 05:00:22,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:00:22,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002541993] [2024-10-14 05:00:22,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002541993] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:00:22,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:00:22,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 05:00:22,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917541186] [2024-10-14 05:00:22,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:00:22,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 05:00:22,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:00:22,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 05:00:22,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-14 05:00:22,758 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) [2024-10-14 05:00:25,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:00:25,128 INFO L93 Difference]: Finished difference Result 78158 states and 113655 transitions. [2024-10-14 05:00:25,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 05:00:25,129 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 [2024-10-14 05:00:25,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:00:25,260 INFO L225 Difference]: With dead ends: 78158 [2024-10-14 05:00:25,260 INFO L226 Difference]: Without dead ends: 71788 [2024-10-14 05:00:25,282 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 [2024-10-14 05:00:25,283 INFO L432 NwaCegarLoop]: 1622 mSDtfsCounter, 8010 mSDsluCounter, 2489 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8010 SdHoareTripleChecker+Valid, 4111 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 05:00:25,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8010 Valid, 4111 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 05:00:25,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71788 states. [2024-10-14 05:00:26,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71788 to 48192. [2024-10-14 05:00:26,702 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) [2024-10-14 05:00:26,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48192 states to 48192 states and 69840 transitions. [2024-10-14 05:00:26,785 INFO L78 Accepts]: Start accepts. Automaton has 48192 states and 69840 transitions. Word has length 86 [2024-10-14 05:00:26,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:00:26,785 INFO L471 AbstractCegarLoop]: Abstraction has 48192 states and 69840 transitions. [2024-10-14 05:00:26,786 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) [2024-10-14 05:00:26,786 INFO L276 IsEmpty]: Start isEmpty. Operand 48192 states and 69840 transitions. [2024-10-14 05:00:26,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-14 05:00:26,794 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:00:26,794 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] [2024-10-14 05:00:26,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 05:00:26,796 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:00:26,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:00:26,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1295750022, now seen corresponding path program 1 times [2024-10-14 05:00:26,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:00:26,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766335077] [2024-10-14 05:00:26,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:00:26,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:00:26,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:00:27,107 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:00:27,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:00:27,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766335077] [2024-10-14 05:00:27,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766335077] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:00:27,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:00:27,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:00:27,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977920586] [2024-10-14 05:00:27,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:00:27,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:00:27,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:00:27,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:00:27,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:00:27,110 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) [2024-10-14 05:00:28,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:00:28,338 INFO L93 Difference]: Finished difference Result 94084 states and 136082 transitions. [2024-10-14 05:00:28,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:00:28,338 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 [2024-10-14 05:00:28,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:00:28,409 INFO L225 Difference]: With dead ends: 94084 [2024-10-14 05:00:28,409 INFO L226 Difference]: Without dead ends: 48194 [2024-10-14 05:00:28,438 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 [2024-10-14 05:00:28,438 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 [2024-10-14 05:00:28,439 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] [2024-10-14 05:00:28,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48194 states. [2024-10-14 05:00:30,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48194 to 48192. [2024-10-14 05:00:30,183 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) [2024-10-14 05:00:30,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48192 states to 48192 states and 69152 transitions. [2024-10-14 05:00:30,249 INFO L78 Accepts]: Start accepts. Automaton has 48192 states and 69152 transitions. Word has length 87 [2024-10-14 05:00:30,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:00:30,249 INFO L471 AbstractCegarLoop]: Abstraction has 48192 states and 69152 transitions. [2024-10-14 05:00:30,250 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) [2024-10-14 05:00:30,250 INFO L276 IsEmpty]: Start isEmpty. Operand 48192 states and 69152 transitions. [2024-10-14 05:00:30,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-14 05:00:30,253 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:00:30,253 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] [2024-10-14 05:00:30,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 05:00:30,253 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:00:30,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:00:30,254 INFO L85 PathProgramCache]: Analyzing trace with hash 145945252, now seen corresponding path program 1 times [2024-10-14 05:00:30,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:00:30,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537690110] [2024-10-14 05:00:30,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:00:30,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:00:30,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:00:30,344 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:00:30,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:00:30,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537690110] [2024-10-14 05:00:30,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537690110] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:00:30,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:00:30,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:00:30,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53845606] [2024-10-14 05:00:30,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:00:30,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:00:30,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:00:30,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:00:30,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:00:30,347 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) [2024-10-14 05:00:30,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:00:30,807 INFO L93 Difference]: Finished difference Result 65016 states and 93415 transitions. [2024-10-14 05:00:30,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:00:30,807 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 [2024-10-14 05:00:30,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:00:30,833 INFO L225 Difference]: With dead ends: 65016 [2024-10-14 05:00:30,833 INFO L226 Difference]: Without dead ends: 19126 [2024-10-14 05:00:30,867 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 [2024-10-14 05:00:30,868 INFO L432 NwaCegarLoop]: 1596 mSDtfsCounter, 47 mSDsluCounter, 1544 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:00:30,868 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 3140 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:00:30,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19126 states. [2024-10-14 05:00:31,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19126 to 19119. [2024-10-14 05:00:31,625 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) [2024-10-14 05:00:31,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19119 states to 19119 states and 27615 transitions. [2024-10-14 05:00:31,655 INFO L78 Accepts]: Start accepts. Automaton has 19119 states and 27615 transitions. Word has length 88 [2024-10-14 05:00:31,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:00:31,656 INFO L471 AbstractCegarLoop]: Abstraction has 19119 states and 27615 transitions. [2024-10-14 05:00:31,656 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) [2024-10-14 05:00:31,656 INFO L276 IsEmpty]: Start isEmpty. Operand 19119 states and 27615 transitions. [2024-10-14 05:00:31,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-14 05:00:31,658 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:00:31,659 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] [2024-10-14 05:00:31,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-14 05:00:31,659 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:00:31,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:00:31,660 INFO L85 PathProgramCache]: Analyzing trace with hash 542716552, now seen corresponding path program 1 times [2024-10-14 05:00:31,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:00:31,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379544897] [2024-10-14 05:00:31,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:00:31,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:00:31,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:00:31,779 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:00:31,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:00:31,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379544897] [2024-10-14 05:00:31,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379544897] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:00:31,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:00:31,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:00:31,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473348404] [2024-10-14 05:00:31,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:00:31,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:00:31,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:00:31,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:00:31,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:00:31,782 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) [2024-10-14 05:00:32,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:00:32,045 INFO L93 Difference]: Finished difference Result 27523 states and 39617 transitions. [2024-10-14 05:00:32,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:00:32,047 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 [2024-10-14 05:00:32,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:00:32,069 INFO L225 Difference]: With dead ends: 27523 [2024-10-14 05:00:32,069 INFO L226 Difference]: Without dead ends: 10721 [2024-10-14 05:00:32,089 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 [2024-10-14 05:00:32,090 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 [2024-10-14 05:00:32,090 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] [2024-10-14 05:00:32,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10721 states. [2024-10-14 05:00:32,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10721 to 10719. [2024-10-14 05:00:32,512 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) [2024-10-14 05:00:32,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10719 states to 10719 states and 15495 transitions. [2024-10-14 05:00:32,538 INFO L78 Accepts]: Start accepts. Automaton has 10719 states and 15495 transitions. Word has length 89 [2024-10-14 05:00:32,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:00:32,539 INFO L471 AbstractCegarLoop]: Abstraction has 10719 states and 15495 transitions. [2024-10-14 05:00:32,539 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) [2024-10-14 05:00:32,539 INFO L276 IsEmpty]: Start isEmpty. Operand 10719 states and 15495 transitions. [2024-10-14 05:00:32,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-14 05:00:32,541 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:00:32,541 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] [2024-10-14 05:00:32,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-14 05:00:32,542 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:00:32,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:00:32,542 INFO L85 PathProgramCache]: Analyzing trace with hash 2089619990, now seen corresponding path program 1 times [2024-10-14 05:00:32,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:00:32,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586325514] [2024-10-14 05:00:32,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:00:32,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:00:32,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:00:32,660 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:00:32,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:00:32,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586325514] [2024-10-14 05:00:32,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586325514] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:00:32,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:00:32,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:00:32,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795214661] [2024-10-14 05:00:32,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:00:32,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:00:32,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:00:32,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:00:32,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:00:32,663 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) [2024-10-14 05:00:32,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:00:32,870 INFO L93 Difference]: Finished difference Result 14923 states and 21437 transitions. [2024-10-14 05:00:32,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:00:32,871 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 [2024-10-14 05:00:32,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:00:32,881 INFO L225 Difference]: With dead ends: 14923 [2024-10-14 05:00:32,881 INFO L226 Difference]: Without dead ends: 6521 [2024-10-14 05:00:32,888 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 [2024-10-14 05:00:32,888 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 [2024-10-14 05:00:32,889 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] [2024-10-14 05:00:32,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6521 states. [2024-10-14 05:00:33,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6521 to 6519. [2024-10-14 05:00:33,083 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) [2024-10-14 05:00:33,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6519 states to 6519 states and 9495 transitions. [2024-10-14 05:00:33,097 INFO L78 Accepts]: Start accepts. Automaton has 6519 states and 9495 transitions. Word has length 91 [2024-10-14 05:00:33,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:00:33,097 INFO L471 AbstractCegarLoop]: Abstraction has 6519 states and 9495 transitions. [2024-10-14 05:00:33,098 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) [2024-10-14 05:00:33,098 INFO L276 IsEmpty]: Start isEmpty. Operand 6519 states and 9495 transitions. [2024-10-14 05:00:33,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-14 05:00:33,099 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:00:33,099 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] [2024-10-14 05:00:33,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-14 05:00:33,100 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:00:33,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:00:33,100 INFO L85 PathProgramCache]: Analyzing trace with hash -925570268, now seen corresponding path program 1 times [2024-10-14 05:00:33,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:00:33,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992238591] [2024-10-14 05:00:33,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:00:33,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:00:33,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:00:33,230 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:00:33,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:00:33,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992238591] [2024-10-14 05:00:33,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992238591] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:00:33,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:00:33,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:00:33,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034529375] [2024-10-14 05:00:33,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:00:33,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:00:33,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:00:33,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:00:33,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:00:33,234 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) [2024-10-14 05:00:33,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:00:33,362 INFO L93 Difference]: Finished difference Result 8623 states and 12437 transitions. [2024-10-14 05:00:33,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:00:33,363 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 [2024-10-14 05:00:33,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:00:33,371 INFO L225 Difference]: With dead ends: 8623 [2024-10-14 05:00:33,371 INFO L226 Difference]: Without dead ends: 4421 [2024-10-14 05:00:33,376 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 [2024-10-14 05:00:33,376 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 [2024-10-14 05:00:33,377 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] [2024-10-14 05:00:33,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4421 states. [2024-10-14 05:00:33,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4421 to 4419. [2024-10-14 05:00:33,569 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) [2024-10-14 05:00:33,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4419 states to 4419 states and 6525 transitions. [2024-10-14 05:00:33,578 INFO L78 Accepts]: Start accepts. Automaton has 4419 states and 6525 transitions. Word has length 93 [2024-10-14 05:00:33,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:00:33,579 INFO L471 AbstractCegarLoop]: Abstraction has 4419 states and 6525 transitions. [2024-10-14 05:00:33,579 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) [2024-10-14 05:00:33,579 INFO L276 IsEmpty]: Start isEmpty. Operand 4419 states and 6525 transitions. [2024-10-14 05:00:33,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-14 05:00:33,580 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:00:33,580 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] [2024-10-14 05:00:33,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-14 05:00:33,581 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:00:33,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:00:33,581 INFO L85 PathProgramCache]: Analyzing trace with hash 826121650, now seen corresponding path program 1 times [2024-10-14 05:00:33,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:00:33,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017298938] [2024-10-14 05:00:33,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:00:33,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:00:33,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:00:33,681 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:00:33,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:00:33,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017298938] [2024-10-14 05:00:33,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017298938] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:00:33,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:00:33,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:00:33,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625090354] [2024-10-14 05:00:33,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:00:33,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:00:33,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:00:33,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:00:33,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:00:33,683 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) [2024-10-14 05:00:33,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:00:33,740 INFO L93 Difference]: Finished difference Result 5473 states and 7982 transitions. [2024-10-14 05:00:33,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:00:33,741 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 [2024-10-14 05:00:33,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:00:33,748 INFO L225 Difference]: With dead ends: 5473 [2024-10-14 05:00:33,749 INFO L226 Difference]: Without dead ends: 3371 [2024-10-14 05:00:33,751 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 [2024-10-14 05:00:33,751 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 [2024-10-14 05:00:33,755 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] [2024-10-14 05:00:33,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3371 states. [2024-10-14 05:00:33,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3371 to 3369. [2024-10-14 05:00:33,812 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) [2024-10-14 05:00:33,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3369 states to 3369 states and 5055 transitions. [2024-10-14 05:00:33,819 INFO L78 Accepts]: Start accepts. Automaton has 3369 states and 5055 transitions. Word has length 95 [2024-10-14 05:00:33,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:00:33,819 INFO L471 AbstractCegarLoop]: Abstraction has 3369 states and 5055 transitions. [2024-10-14 05:00:33,819 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) [2024-10-14 05:00:33,819 INFO L276 IsEmpty]: Start isEmpty. Operand 3369 states and 5055 transitions. [2024-10-14 05:00:33,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-14 05:00:33,820 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:00:33,821 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] [2024-10-14 05:00:33,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-14 05:00:33,821 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:00:33,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:00:33,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1704195648, now seen corresponding path program 1 times [2024-10-14 05:00:33,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:00:33,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379875493] [2024-10-14 05:00:33,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:00:33,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:00:33,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:00:33,993 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 05:00:33,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:00:33,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379875493] [2024-10-14 05:00:33,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379875493] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 05:00:33,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18473334] [2024-10-14 05:00:33,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:00:33,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 05:00:33,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 05:00:33,997 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) [2024-10-14 05:00:33,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 05:00:34,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:00:34,147 INFO L255 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-14 05:00:34,152 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 05:00:34,669 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:00:34,670 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 05:00:36,071 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:00:36,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [18473334] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 05:00:36,072 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 05:00:36,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9, 9] total 20 [2024-10-14 05:00:36,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497626743] [2024-10-14 05:00:36,072 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 05:00:36,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-14 05:00:36,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:00:36,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-14 05:00:36,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2024-10-14 05:00:36,075 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) [2024-10-14 05:00:36,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:00:36,961 INFO L93 Difference]: Finished difference Result 6410 states and 9074 transitions. [2024-10-14 05:00:36,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-14 05:00:36,962 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 [2024-10-14 05:00:36,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:00:36,972 INFO L225 Difference]: With dead ends: 6410 [2024-10-14 05:00:36,972 INFO L226 Difference]: Without dead ends: 5358 [2024-10-14 05:00:36,977 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=334, Invalid=998, Unknown=0, NotChecked=0, Total=1332 [2024-10-14 05:00:36,977 INFO L432 NwaCegarLoop]: 1519 mSDtfsCounter, 9442 mSDsluCounter, 4958 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9442 SdHoareTripleChecker+Valid, 6477 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 05:00:36,979 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9442 Valid, 6477 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 05:00:36,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5358 states. [2024-10-14 05:00:37,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5358 to 5208. [2024-10-14 05:00:37,089 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) [2024-10-14 05:00:37,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5208 states to 5208 states and 7386 transitions. [2024-10-14 05:00:37,097 INFO L78 Accepts]: Start accepts. Automaton has 5208 states and 7386 transitions. Word has length 97 [2024-10-14 05:00:37,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:00:37,098 INFO L471 AbstractCegarLoop]: Abstraction has 5208 states and 7386 transitions. [2024-10-14 05:00:37,098 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) [2024-10-14 05:00:37,098 INFO L276 IsEmpty]: Start isEmpty. Operand 5208 states and 7386 transitions. [2024-10-14 05:00:37,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-10-14 05:00:37,099 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:00:37,100 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] [2024-10-14 05:00:37,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-14 05:00:37,300 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 [2024-10-14 05:00:37,301 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:00:37,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:00:37,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1750557588, now seen corresponding path program 1 times [2024-10-14 05:00:37,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:00:37,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084884786] [2024-10-14 05:00:37,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:00:37,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:00:37,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:00:39,712 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:00:39,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:00:39,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084884786] [2024-10-14 05:00:39,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084884786] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 05:00:39,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303038293] [2024-10-14 05:00:39,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:00:39,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 05:00:39,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 05:00:39,716 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) [2024-10-14 05:00:39,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 05:00:39,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:00:39,846 INFO L255 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-14 05:00:39,850 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 05:00:41,262 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:00:41,262 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 05:00:43,791 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:00:43,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303038293] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 05:00:43,791 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 05:00:43,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14, 15] total 39 [2024-10-14 05:00:43,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142473589] [2024-10-14 05:00:43,792 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 05:00:43,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-10-14 05:00:43,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:00:43,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-10-14 05:00:43,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=1295, Unknown=0, NotChecked=0, Total=1482 [2024-10-14 05:00:43,794 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) [2024-10-14 05:00:53,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:00:53,696 INFO L93 Difference]: Finished difference Result 14056 states and 19210 transitions. [2024-10-14 05:00:53,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2024-10-14 05:00:53,697 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 [2024-10-14 05:00:53,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:00:53,709 INFO L225 Difference]: With dead ends: 14056 [2024-10-14 05:00:53,709 INFO L226 Difference]: Without dead ends: 11293 [2024-10-14 05:00:53,714 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3774 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=2206, Invalid=10226, Unknown=0, NotChecked=0, Total=12432 [2024-10-14 05:00:53,714 INFO L432 NwaCegarLoop]: 1509 mSDtfsCounter, 28770 mSDsluCounter, 12584 mSDsCounter, 0 mSdLazyCounter, 1578 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28770 SdHoareTripleChecker+Valid, 14093 SdHoareTripleChecker+Invalid, 1682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-14 05:00:53,714 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28770 Valid, 14093 Invalid, 1682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1578 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-14 05:00:53,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11293 states. [2024-10-14 05:00:53,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11293 to 8873. [2024-10-14 05:00:53,955 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) [2024-10-14 05:00:53,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8873 states to 8873 states and 12213 transitions. [2024-10-14 05:00:53,966 INFO L78 Accepts]: Start accepts. Automaton has 8873 states and 12213 transitions. Word has length 98 [2024-10-14 05:00:53,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:00:53,967 INFO L471 AbstractCegarLoop]: Abstraction has 8873 states and 12213 transitions. [2024-10-14 05:00:53,967 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) [2024-10-14 05:00:53,967 INFO L276 IsEmpty]: Start isEmpty. Operand 8873 states and 12213 transitions. [2024-10-14 05:00:53,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-14 05:00:53,968 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:00:53,968 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] [2024-10-14 05:00:53,987 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 05:00:54,169 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 [2024-10-14 05:00:54,169 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:00:54,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:00:54,170 INFO L85 PathProgramCache]: Analyzing trace with hash -84561202, now seen corresponding path program 1 times [2024-10-14 05:00:54,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:00:54,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003977616] [2024-10-14 05:00:54,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:00:54,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:00:54,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:00:54,544 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:00:54,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:00:54,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003977616] [2024-10-14 05:00:54,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003977616] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 05:00:54,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687083703] [2024-10-14 05:00:54,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:00:54,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 05:00:54,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 05:00:54,547 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) [2024-10-14 05:00:54,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 05:00:54,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:00:54,694 INFO L255 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-14 05:00:54,699 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 05:00:55,081 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:00:55,082 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 05:00:55,898 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:00:55,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [687083703] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 05:00:55,898 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 05:00:55,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2024-10-14 05:00:55,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420435805] [2024-10-14 05:00:55,899 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 05:00:55,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-14 05:00:55,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:00:55,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-14 05:00:55,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2024-10-14 05:00:55,901 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) [2024-10-14 05:00:56,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:00:56,717 INFO L93 Difference]: Finished difference Result 15297 states and 20698 transitions. [2024-10-14 05:00:56,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 05:00:56,718 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 [2024-10-14 05:00:56,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:00:56,729 INFO L225 Difference]: With dead ends: 15297 [2024-10-14 05:00:56,729 INFO L226 Difference]: Without dead ends: 9069 [2024-10-14 05:00:56,735 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=253, Invalid=803, Unknown=0, NotChecked=0, Total=1056 [2024-10-14 05:00:56,736 INFO L432 NwaCegarLoop]: 1517 mSDtfsCounter, 10905 mSDsluCounter, 6335 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10905 SdHoareTripleChecker+Valid, 7852 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 05:00:56,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10905 Valid, 7852 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 05:00:56,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9069 states. [2024-10-14 05:00:57,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9069 to 8401. [2024-10-14 05:00:57,064 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) [2024-10-14 05:00:57,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8401 states to 8401 states and 11520 transitions. [2024-10-14 05:00:57,079 INFO L78 Accepts]: Start accepts. Automaton has 8401 states and 11520 transitions. Word has length 99 [2024-10-14 05:00:57,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:00:57,080 INFO L471 AbstractCegarLoop]: Abstraction has 8401 states and 11520 transitions. [2024-10-14 05:00:57,080 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) [2024-10-14 05:00:57,080 INFO L276 IsEmpty]: Start isEmpty. Operand 8401 states and 11520 transitions. [2024-10-14 05:00:57,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-14 05:00:57,082 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:00:57,082 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] [2024-10-14 05:00:57,100 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-14 05:00:57,284 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 [2024-10-14 05:00:57,285 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:00:57,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:00:57,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1131721522, now seen corresponding path program 1 times [2024-10-14 05:00:57,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:00:57,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025137722] [2024-10-14 05:00:57,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:00:57,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:00:57,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:00:57,623 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:00:57,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:00:57,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025137722] [2024-10-14 05:00:57,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025137722] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 05:00:57,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [764928167] [2024-10-14 05:00:57,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:00:57,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 05:00:57,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 05:00:57,626 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) [2024-10-14 05:00:57,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 05:00:57,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:00:57,775 INFO L255 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-14 05:00:57,781 INFO L278 TraceCheckSpWp]: Computing forward predicates...