./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.3.ufo.BOUNDED-6.pals+Problem12_label07.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/pals_lcr.3.ufo.BOUNDED-6.pals+Problem12_label07.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 1a770e072308583e36326282bebae23c1c98c748d42f3621fe7141c74e78b303 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 16:55:23,337 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:55:23,411 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 16:55:23,416 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:55:23,418 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:55:23,438 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:55:23,439 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:55:23,439 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:55:23,440 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:55:23,441 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:55:23,441 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:55:23,442 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:55:23,442 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:55:23,442 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:55:23,444 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:55:23,444 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:55:23,444 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:55:23,444 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:55:23,445 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:55:23,445 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:55:23,445 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:55:23,445 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:55:23,446 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:55:23,446 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:55:23,446 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:55:23,446 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:55:23,446 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:55:23,447 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:55:23,447 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:55:23,451 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:55:23,451 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:55:23,451 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:55:23,452 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:55:23,452 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:55:23,452 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:55:23,452 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:55:23,452 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:55:23,452 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:55:23,452 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:55:23,452 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:55:23,452 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:55:23,453 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:55:23,453 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a770e072308583e36326282bebae23c1c98c748d42f3621fe7141c74e78b303 [2024-11-08 16:55:23,668 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:55:23,685 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:55:23,687 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:55:23,688 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:55:23,688 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:55:23,689 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.3.ufo.BOUNDED-6.pals+Problem12_label07.c [2024-11-08 16:55:24,862 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:55:25,218 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:55:25,219 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.3.ufo.BOUNDED-6.pals+Problem12_label07.c [2024-11-08 16:55:25,243 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/658f03ffc/2cc7e286948c425e9b6bfd478d8e04b5/FLAGc20dd41f6 [2024-11-08 16:55:25,256 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/658f03ffc/2cc7e286948c425e9b6bfd478d8e04b5 [2024-11-08 16:55:25,258 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:55:25,259 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:55:25,261 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:55:25,262 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:55:25,266 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:55:25,266 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:55:25" (1/1) ... [2024-11-08 16:55:25,267 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c636c54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:55:25, skipping insertion in model container [2024-11-08 16:55:25,267 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:55:25" (1/1) ... [2024-11-08 16:55:25,353 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:55:25,609 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.3.ufo.BOUNDED-6.pals+Problem12_label07.c[6354,6367] [2024-11-08 16:55:25,634 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.3.ufo.BOUNDED-6.pals+Problem12_label07.c[7196,7209] [2024-11-08 16:55:26,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:55:26,113 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:55:26,140 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.3.ufo.BOUNDED-6.pals+Problem12_label07.c[6354,6367] [2024-11-08 16:55:26,141 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.3.ufo.BOUNDED-6.pals+Problem12_label07.c[7196,7209] [2024-11-08 16:55:26,399 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:55:26,420 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:55:26,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:55:26 WrapperNode [2024-11-08 16:55:26,421 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:55:26,422 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:55:26,422 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:55:26,422 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:55:26,427 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:55:26" (1/1) ... [2024-11-08 16:55:26,470 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:55:26" (1/1) ... [2024-11-08 16:55:26,692 INFO L138 Inliner]: procedures = 33, calls = 19, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 4983 [2024-11-08 16:55:26,693 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:55:26,694 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:55:26,694 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:55:26,694 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:55:26,702 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:55:26" (1/1) ... [2024-11-08 16:55:26,703 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:55:26" (1/1) ... [2024-11-08 16:55:26,738 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:55:26" (1/1) ... [2024-11-08 16:55:26,922 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 16:55:26,923 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:55:26" (1/1) ... [2024-11-08 16:55:26,923 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:55:26" (1/1) ... [2024-11-08 16:55:27,015 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:55:26" (1/1) ... [2024-11-08 16:55:27,035 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:55:26" (1/1) ... [2024-11-08 16:55:27,051 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:55:26" (1/1) ... [2024-11-08 16:55:27,065 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:55:26" (1/1) ... [2024-11-08 16:55:27,098 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:55:27,099 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:55:27,099 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:55:27,099 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:55:27,100 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:55:26" (1/1) ... [2024-11-08 16:55:27,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:55:27,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 16:55:27,125 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:55:27,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:55:27,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:55:27,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:55:27,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:55:27,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:55:27,229 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:55:27,231 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:55:30,344 INFO L? ?]: Removed 732 outVars from TransFormulas that were not future-live. [2024-11-08 16:55:30,345 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:55:30,375 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:55:30,375 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 16:55:30,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:55:30 BoogieIcfgContainer [2024-11-08 16:55:30,376 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:55:30,377 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:55:30,377 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:55:30,380 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:55:30,380 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:55:25" (1/3) ... [2024-11-08 16:55:30,381 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cf7d9cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:55:30, skipping insertion in model container [2024-11-08 16:55:30,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:55:26" (2/3) ... [2024-11-08 16:55:30,381 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cf7d9cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:55:30, skipping insertion in model container [2024-11-08 16:55:30,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:55:30" (3/3) ... [2024-11-08 16:55:30,385 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.ufo.BOUNDED-6.pals+Problem12_label07.c [2024-11-08 16:55:30,397 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:55:30,397 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 16:55:30,467 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:55:30,472 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;@10503634, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:55:30,472 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 16:55:30,483 INFO L276 IsEmpty]: Start isEmpty. Operand has 872 states, 869 states have (on average 1.906789413118527) internal successors, (1657), 871 states have internal predecessors, (1657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:30,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 16:55:30,489 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:55:30,490 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:55:30,490 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:55:30,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:55:30,495 INFO L85 PathProgramCache]: Analyzing trace with hash 2037018396, now seen corresponding path program 1 times [2024-11-08 16:55:30,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:55:30,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119469830] [2024-11-08 16:55:30,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:55:30,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:55:30,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:30,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:55:30,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:55:30,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119469830] [2024-11-08 16:55:30,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119469830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:55:30,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:55:30,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:55:30,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488561633] [2024-11-08 16:55:30,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:55:30,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:55:30,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:55:30,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:55:30,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:55:30,700 INFO L87 Difference]: Start difference. First operand has 872 states, 869 states have (on average 1.906789413118527) internal successors, (1657), 871 states have internal predecessors, (1657), 0 states have call successors, (0), 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 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:33,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:55:33,565 INFO L93 Difference]: Finished difference Result 2477 states and 4776 transitions. [2024-11-08 16:55:33,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:55:33,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 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 7 [2024-11-08 16:55:33,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:55:33,593 INFO L225 Difference]: With dead ends: 2477 [2024-11-08 16:55:33,593 INFO L226 Difference]: Without dead ends: 1557 [2024-11-08 16:55:33,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:55:33,605 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 941 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2337 mSolverCounterSat, 1058 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 941 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 3395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1058 IncrementalHoareTripleChecker+Valid, 2337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-08 16:55:33,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [941 Valid, 192 Invalid, 3395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1058 Valid, 2337 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-08 16:55:33,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1557 states. [2024-11-08 16:55:33,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1557 to 1557. [2024-11-08 16:55:33,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1557 states, 1555 states have (on average 1.8643086816720258) internal successors, (2899), 1556 states have internal predecessors, (2899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:33,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1557 states to 1557 states and 2899 transitions. [2024-11-08 16:55:33,712 INFO L78 Accepts]: Start accepts. Automaton has 1557 states and 2899 transitions. Word has length 7 [2024-11-08 16:55:33,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:55:33,712 INFO L471 AbstractCegarLoop]: Abstraction has 1557 states and 2899 transitions. [2024-11-08 16:55:33,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:33,712 INFO L276 IsEmpty]: Start isEmpty. Operand 1557 states and 2899 transitions. [2024-11-08 16:55:33,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-08 16:55:33,713 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:55:33,713 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] [2024-11-08 16:55:33,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:55:33,714 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:55:33,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:55:33,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1746662891, now seen corresponding path program 1 times [2024-11-08 16:55:33,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:55:33,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705766317] [2024-11-08 16:55:33,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:55:33,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:55:33,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:33,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:55:33,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:55:33,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705766317] [2024-11-08 16:55:33,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705766317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:55:33,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:55:33,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:55:33,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015603522] [2024-11-08 16:55:33,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:55:33,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:55:33,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:55:33,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:55:33,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:55:33,891 INFO L87 Difference]: Start difference. First operand 1557 states and 2899 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:33,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:55:33,943 INFO L93 Difference]: Finished difference Result 1621 states and 2997 transitions. [2024-11-08 16:55:33,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:55:33,943 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 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 20 [2024-11-08 16:55:33,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:55:33,948 INFO L225 Difference]: With dead ends: 1621 [2024-11-08 16:55:33,948 INFO L226 Difference]: Without dead ends: 1587 [2024-11-08 16:55:33,949 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:55:33,950 INFO L432 NwaCegarLoop]: 1520 mSDtfsCounter, 46 mSDsluCounter, 4538 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 6058 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:55:33,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 6058 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:55:33,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2024-11-08 16:55:33,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1557. [2024-11-08 16:55:33,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1557 states, 1555 states have (on average 1.8540192926045016) internal successors, (2883), 1556 states have internal predecessors, (2883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:33,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1557 states to 1557 states and 2883 transitions. [2024-11-08 16:55:33,975 INFO L78 Accepts]: Start accepts. Automaton has 1557 states and 2883 transitions. Word has length 20 [2024-11-08 16:55:33,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:55:33,975 INFO L471 AbstractCegarLoop]: Abstraction has 1557 states and 2883 transitions. [2024-11-08 16:55:33,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:33,976 INFO L276 IsEmpty]: Start isEmpty. Operand 1557 states and 2883 transitions. [2024-11-08 16:55:33,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-08 16:55:33,977 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:55:33,978 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] [2024-11-08 16:55:33,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:55:33,978 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:55:33,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:55:33,980 INFO L85 PathProgramCache]: Analyzing trace with hash 623816355, now seen corresponding path program 1 times [2024-11-08 16:55:33,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:55:33,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254310247] [2024-11-08 16:55:33,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:55:33,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:55:34,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:34,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:55:34,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:55:34,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254310247] [2024-11-08 16:55:34,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254310247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:55:34,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:55:34,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:55:34,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234485456] [2024-11-08 16:55:34,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:55:34,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:55:34,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:55:34,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:55:34,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:55:34,098 INFO L87 Difference]: Start difference. First operand 1557 states and 2883 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:34,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:55:34,185 INFO L93 Difference]: Finished difference Result 1737 states and 3165 transitions. [2024-11-08 16:55:34,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:55:34,186 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 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 35 [2024-11-08 16:55:34,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:55:34,192 INFO L225 Difference]: With dead ends: 1737 [2024-11-08 16:55:34,192 INFO L226 Difference]: Without dead ends: 1707 [2024-11-08 16:55:34,195 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:55:34,197 INFO L432 NwaCegarLoop]: 1504 mSDtfsCounter, 4589 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4589 SdHoareTripleChecker+Valid, 1865 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:55:34,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4589 Valid, 1865 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:55:34,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2024-11-08 16:55:34,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1585. [2024-11-08 16:55:34,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1583 states have (on average 1.8490208464939988) internal successors, (2927), 1584 states have internal predecessors, (2927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:34,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 2927 transitions. [2024-11-08 16:55:34,223 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 2927 transitions. Word has length 35 [2024-11-08 16:55:34,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:55:34,224 INFO L471 AbstractCegarLoop]: Abstraction has 1585 states and 2927 transitions. [2024-11-08 16:55:34,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:34,224 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 2927 transitions. [2024-11-08 16:55:34,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-08 16:55:34,225 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:55:34,226 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] [2024-11-08 16:55:34,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:55:34,226 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:55:34,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:55:34,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1071361683, now seen corresponding path program 1 times [2024-11-08 16:55:34,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:55:34,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419465633] [2024-11-08 16:55:34,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:55:34,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:55:34,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:34,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:55:34,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:55:34,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419465633] [2024-11-08 16:55:34,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419465633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:55:34,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:55:34,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:55:34,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451134703] [2024-11-08 16:55:34,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:55:34,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:55:34,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:55:34,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:55:34,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:55:34,285 INFO L87 Difference]: Start difference. First operand 1585 states and 2927 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:34,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:55:34,308 INFO L93 Difference]: Finished difference Result 1690 states and 3090 transitions. [2024-11-08 16:55:34,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:55:34,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2024-11-08 16:55:34,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:55:34,313 INFO L225 Difference]: With dead ends: 1690 [2024-11-08 16:55:34,314 INFO L226 Difference]: Without dead ends: 1632 [2024-11-08 16:55:34,314 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:55:34,315 INFO L432 NwaCegarLoop]: 1506 mSDtfsCounter, 1466 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1466 SdHoareTripleChecker+Valid, 1548 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:55:34,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1466 Valid, 1548 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:55:34,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1632 states. [2024-11-08 16:55:34,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1632 to 1630. [2024-11-08 16:55:34,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1630 states, 1628 states have (on average 1.8396805896805897) internal successors, (2995), 1629 states have internal predecessors, (2995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:34,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1630 states to 1630 states and 2995 transitions. [2024-11-08 16:55:34,337 INFO L78 Accepts]: Start accepts. Automaton has 1630 states and 2995 transitions. Word has length 37 [2024-11-08 16:55:34,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:55:34,337 INFO L471 AbstractCegarLoop]: Abstraction has 1630 states and 2995 transitions. [2024-11-08 16:55:34,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:34,337 INFO L276 IsEmpty]: Start isEmpty. Operand 1630 states and 2995 transitions. [2024-11-08 16:55:34,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-08 16:55:34,338 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:55:34,338 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] [2024-11-08 16:55:34,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:55:34,339 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:55:34,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:55:34,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1137855195, now seen corresponding path program 1 times [2024-11-08 16:55:34,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:55:34,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842185368] [2024-11-08 16:55:34,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:55:34,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:55:34,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:34,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:55:34,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:55:34,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842185368] [2024-11-08 16:55:34,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842185368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:55:34,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:55:34,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:55:34,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128684848] [2024-11-08 16:55:34,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:55:34,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:55:34,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:55:34,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:55:34,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:55:34,445 INFO L87 Difference]: Start difference. First operand 1630 states and 2995 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:34,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:55:34,505 INFO L93 Difference]: Finished difference Result 1735 states and 3155 transitions. [2024-11-08 16:55:34,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:55:34,506 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2024-11-08 16:55:34,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:55:34,510 INFO L225 Difference]: With dead ends: 1735 [2024-11-08 16:55:34,510 INFO L226 Difference]: Without dead ends: 1632 [2024-11-08 16:55:34,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:55:34,512 INFO L432 NwaCegarLoop]: 1503 mSDtfsCounter, 1475 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1475 SdHoareTripleChecker+Valid, 1632 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:55:34,513 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1475 Valid, 1632 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:55:34,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1632 states. [2024-11-08 16:55:34,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1632 to 1630. [2024-11-08 16:55:34,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1630 states, 1628 states have (on average 1.8384520884520885) internal successors, (2993), 1629 states have internal predecessors, (2993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:34,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1630 states to 1630 states and 2993 transitions. [2024-11-08 16:55:34,534 INFO L78 Accepts]: Start accepts. Automaton has 1630 states and 2993 transitions. Word has length 37 [2024-11-08 16:55:34,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:55:34,535 INFO L471 AbstractCegarLoop]: Abstraction has 1630 states and 2993 transitions. [2024-11-08 16:55:34,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:34,535 INFO L276 IsEmpty]: Start isEmpty. Operand 1630 states and 2993 transitions. [2024-11-08 16:55:34,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-08 16:55:34,538 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:55:34,538 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] [2024-11-08 16:55:34,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 16:55:34,538 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:55:34,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:55:34,539 INFO L85 PathProgramCache]: Analyzing trace with hash 499049456, now seen corresponding path program 1 times [2024-11-08 16:55:34,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:55:34,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66799638] [2024-11-08 16:55:34,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:55:34,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:55:34,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:34,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:55:34,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:55:34,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66799638] [2024-11-08 16:55:34,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66799638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:55:34,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:55:34,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:55:34,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614504604] [2024-11-08 16:55:34,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:55:34,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:55:34,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:55:34,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:55:34,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:55:34,729 INFO L87 Difference]: Start difference. First operand 1630 states and 2993 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:34,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:55:34,762 INFO L93 Difference]: Finished difference Result 1638 states and 3002 transitions. [2024-11-08 16:55:34,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:55:34,765 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 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 38 [2024-11-08 16:55:34,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:55:34,771 INFO L225 Difference]: With dead ends: 1638 [2024-11-08 16:55:34,771 INFO L226 Difference]: Without dead ends: 1636 [2024-11-08 16:55:34,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:55:34,774 INFO L432 NwaCegarLoop]: 1505 mSDtfsCounter, 0 mSDsluCounter, 4506 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6011 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:55:34,775 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6011 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:55:34,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1636 states. [2024-11-08 16:55:34,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1636 to 1636. [2024-11-08 16:55:34,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1636 states, 1634 states have (on average 1.8347613219094248) internal successors, (2998), 1635 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:34,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1636 states to 1636 states and 2998 transitions. [2024-11-08 16:55:34,800 INFO L78 Accepts]: Start accepts. Automaton has 1636 states and 2998 transitions. Word has length 38 [2024-11-08 16:55:34,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:55:34,800 INFO L471 AbstractCegarLoop]: Abstraction has 1636 states and 2998 transitions. [2024-11-08 16:55:34,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:34,800 INFO L276 IsEmpty]: Start isEmpty. Operand 1636 states and 2998 transitions. [2024-11-08 16:55:34,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-08 16:55:34,801 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:55:34,801 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] [2024-11-08 16:55:34,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 16:55:34,801 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:55:34,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:55:34,802 INFO L85 PathProgramCache]: Analyzing trace with hash 166228827, now seen corresponding path program 1 times [2024-11-08 16:55:34,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:55:34,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430136122] [2024-11-08 16:55:34,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:55:34,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:55:34,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:34,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:55:34,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:55:34,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430136122] [2024-11-08 16:55:34,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430136122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:55:34,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:55:34,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:55:34,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162861271] [2024-11-08 16:55:34,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:55:34,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:55:34,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:55:34,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:55:34,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:55:34,833 INFO L87 Difference]: Start difference. First operand 1636 states and 2998 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:34,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:55:34,859 INFO L93 Difference]: Finished difference Result 1758 states and 3179 transitions. [2024-11-08 16:55:34,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:55:34,860 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2024-11-08 16:55:34,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:55:34,864 INFO L225 Difference]: With dead ends: 1758 [2024-11-08 16:55:34,865 INFO L226 Difference]: Without dead ends: 1694 [2024-11-08 16:55:34,865 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:55:34,866 INFO L432 NwaCegarLoop]: 1540 mSDtfsCounter, 1476 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1476 SdHoareTripleChecker+Valid, 1588 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:55:34,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1476 Valid, 1588 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:55:34,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2024-11-08 16:55:34,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 1692. [2024-11-08 16:55:34,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1692 states, 1690 states have (on average 1.8218934911242604) internal successors, (3079), 1691 states have internal predecessors, (3079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:34,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1692 states to 1692 states and 3079 transitions. [2024-11-08 16:55:34,893 INFO L78 Accepts]: Start accepts. Automaton has 1692 states and 3079 transitions. Word has length 39 [2024-11-08 16:55:34,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:55:34,893 INFO L471 AbstractCegarLoop]: Abstraction has 1692 states and 3079 transitions. [2024-11-08 16:55:34,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:34,893 INFO L276 IsEmpty]: Start isEmpty. Operand 1692 states and 3079 transitions. [2024-11-08 16:55:34,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-08 16:55:34,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:55:34,894 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] [2024-11-08 16:55:34,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 16:55:34,894 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:55:34,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:55:34,894 INFO L85 PathProgramCache]: Analyzing trace with hash -2049239973, now seen corresponding path program 1 times [2024-11-08 16:55:34,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:55:34,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873740387] [2024-11-08 16:55:34,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:55:34,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:55:34,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:34,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:55:34,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:55:34,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873740387] [2024-11-08 16:55:34,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873740387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:55:34,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:55:34,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:55:34,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874476823] [2024-11-08 16:55:34,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:55:34,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:55:34,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:55:34,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:55:34,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:55:34,929 INFO L87 Difference]: Start difference. First operand 1692 states and 3079 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:34,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:55:34,953 INFO L93 Difference]: Finished difference Result 1994 states and 3519 transitions. [2024-11-08 16:55:34,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:55:34,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2024-11-08 16:55:34,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:55:34,959 INFO L225 Difference]: With dead ends: 1994 [2024-11-08 16:55:34,959 INFO L226 Difference]: Without dead ends: 1831 [2024-11-08 16:55:34,959 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:55:34,960 INFO L432 NwaCegarLoop]: 1542 mSDtfsCounter, 1474 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1474 SdHoareTripleChecker+Valid, 1594 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:55:34,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1474 Valid, 1594 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:55:34,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1831 states. [2024-11-08 16:55:34,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1831 to 1829. [2024-11-08 16:55:34,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1829 states, 1827 states have (on average 1.7903667214012042) internal successors, (3271), 1828 states have internal predecessors, (3271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:34,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1829 states to 1829 states and 3271 transitions. [2024-11-08 16:55:34,985 INFO L78 Accepts]: Start accepts. Automaton has 1829 states and 3271 transitions. Word has length 39 [2024-11-08 16:55:34,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:55:34,985 INFO L471 AbstractCegarLoop]: Abstraction has 1829 states and 3271 transitions. [2024-11-08 16:55:34,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:34,986 INFO L276 IsEmpty]: Start isEmpty. Operand 1829 states and 3271 transitions. [2024-11-08 16:55:34,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-08 16:55:34,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:55:34,986 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] [2024-11-08 16:55:34,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 16:55:34,987 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:55:34,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:55:34,987 INFO L85 PathProgramCache]: Analyzing trace with hash -268307109, now seen corresponding path program 1 times [2024-11-08 16:55:34,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:55:34,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955796972] [2024-11-08 16:55:34,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:55:34,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:55:34,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:35,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:55:35,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:55:35,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955796972] [2024-11-08 16:55:35,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955796972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:55:35,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:55:35,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:55:35,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336636980] [2024-11-08 16:55:35,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:55:35,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:55:35,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:55:35,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:55:35,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:55:35,024 INFO L87 Difference]: Start difference. First operand 1829 states and 3271 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:35,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:55:35,054 INFO L93 Difference]: Finished difference Result 2381 states and 4053 transitions. [2024-11-08 16:55:35,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:55:35,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2024-11-08 16:55:35,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:55:35,060 INFO L225 Difference]: With dead ends: 2381 [2024-11-08 16:55:35,060 INFO L226 Difference]: Without dead ends: 2081 [2024-11-08 16:55:35,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:55:35,062 INFO L432 NwaCegarLoop]: 1540 mSDtfsCounter, 1472 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1472 SdHoareTripleChecker+Valid, 1596 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:55:35,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1472 Valid, 1596 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:55:35,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2081 states. [2024-11-08 16:55:35,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2081 to 2079. [2024-11-08 16:55:35,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2079 states, 2077 states have (on average 1.7366393837265286) internal successors, (3607), 2078 states have internal predecessors, (3607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:35,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2079 states to 2079 states and 3607 transitions. [2024-11-08 16:55:35,090 INFO L78 Accepts]: Start accepts. Automaton has 2079 states and 3607 transitions. Word has length 39 [2024-11-08 16:55:35,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:55:35,090 INFO L471 AbstractCegarLoop]: Abstraction has 2079 states and 3607 transitions. [2024-11-08 16:55:35,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:35,090 INFO L276 IsEmpty]: Start isEmpty. Operand 2079 states and 3607 transitions. [2024-11-08 16:55:35,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-08 16:55:35,091 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:55:35,091 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] [2024-11-08 16:55:35,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 16:55:35,091 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:55:35,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:55:35,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1567417933, now seen corresponding path program 1 times [2024-11-08 16:55:35,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:55:35,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168419381] [2024-11-08 16:55:35,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:55:35,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:55:35,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:35,178 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 16:55:35,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:55:35,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168419381] [2024-11-08 16:55:35,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168419381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:55:35,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:55:35,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:55:35,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508072882] [2024-11-08 16:55:35,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:55:35,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:55:35,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:55:35,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:55:35,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:55:35,180 INFO L87 Difference]: Start difference. First operand 2079 states and 3607 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:35,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:55:35,258 INFO L93 Difference]: Finished difference Result 3711 states and 5883 transitions. [2024-11-08 16:55:35,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:55:35,258 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 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 54 [2024-11-08 16:55:35,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:55:35,268 INFO L225 Difference]: With dead ends: 3711 [2024-11-08 16:55:35,268 INFO L226 Difference]: Without dead ends: 3309 [2024-11-08 16:55:35,269 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:55:35,269 INFO L432 NwaCegarLoop]: 1548 mSDtfsCounter, 3039 mSDsluCounter, 1612 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3039 SdHoareTripleChecker+Valid, 3160 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:55:35,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3039 Valid, 3160 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:55:35,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3309 states. [2024-11-08 16:55:35,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3309 to 2555. [2024-11-08 16:55:35,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2555 states, 2553 states have (on average 1.6698002350176264) internal successors, (4263), 2554 states have internal predecessors, (4263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:35,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2555 states to 2555 states and 4263 transitions. [2024-11-08 16:55:35,320 INFO L78 Accepts]: Start accepts. Automaton has 2555 states and 4263 transitions. Word has length 54 [2024-11-08 16:55:35,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:55:35,320 INFO L471 AbstractCegarLoop]: Abstraction has 2555 states and 4263 transitions. [2024-11-08 16:55:35,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:35,321 INFO L276 IsEmpty]: Start isEmpty. Operand 2555 states and 4263 transitions. [2024-11-08 16:55:35,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-08 16:55:35,322 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:55:35,322 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] [2024-11-08 16:55:35,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 16:55:35,322 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:55:35,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:55:35,322 INFO L85 PathProgramCache]: Analyzing trace with hash -648050867, now seen corresponding path program 1 times [2024-11-08 16:55:35,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:55:35,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244254352] [2024-11-08 16:55:35,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:55:35,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:55:35,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:35,404 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 16:55:35,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:55:35,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244254352] [2024-11-08 16:55:35,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244254352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:55:35,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:55:35,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:55:35,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522197623] [2024-11-08 16:55:35,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:55:35,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:55:35,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:55:35,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:55:35,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:55:35,407 INFO L87 Difference]: Start difference. First operand 2555 states and 4263 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:35,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:55:35,485 INFO L93 Difference]: Finished difference Result 4259 states and 6643 transitions. [2024-11-08 16:55:35,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:55:35,485 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 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 54 [2024-11-08 16:55:35,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:55:35,495 INFO L225 Difference]: With dead ends: 4259 [2024-11-08 16:55:35,495 INFO L226 Difference]: Without dead ends: 3709 [2024-11-08 16:55:35,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:55:35,497 INFO L432 NwaCegarLoop]: 1547 mSDtfsCounter, 3041 mSDsluCounter, 1600 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3041 SdHoareTripleChecker+Valid, 3147 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:55:35,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3041 Valid, 3147 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:55:35,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3709 states. [2024-11-08 16:55:35,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3709 to 3303. [2024-11-08 16:55:35,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3303 states, 3301 states have (on average 1.6028476219327477) internal successors, (5291), 3302 states have internal predecessors, (5291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:35,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3303 states to 3303 states and 5291 transitions. [2024-11-08 16:55:35,556 INFO L78 Accepts]: Start accepts. Automaton has 3303 states and 5291 transitions. Word has length 54 [2024-11-08 16:55:35,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:55:35,557 INFO L471 AbstractCegarLoop]: Abstraction has 3303 states and 5291 transitions. [2024-11-08 16:55:35,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:35,557 INFO L276 IsEmpty]: Start isEmpty. Operand 3303 states and 5291 transitions. [2024-11-08 16:55:35,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-08 16:55:35,558 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:55:35,558 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] [2024-11-08 16:55:35,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 16:55:35,558 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:55:35,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:55:35,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1132881997, now seen corresponding path program 1 times [2024-11-08 16:55:35,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:55:35,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384352853] [2024-11-08 16:55:35,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:55:35,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:55:35,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:35,623 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-08 16:55:35,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:55:35,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384352853] [2024-11-08 16:55:35,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384352853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:55:35,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:55:35,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:55:35,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497335225] [2024-11-08 16:55:35,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:55:35,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:55:35,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:55:35,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:55:35,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:55:35,625 INFO L87 Difference]: Start difference. First operand 3303 states and 5291 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:35,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:55:35,737 INFO L93 Difference]: Finished difference Result 4807 states and 7399 transitions. [2024-11-08 16:55:35,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:55:35,738 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 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 54 [2024-11-08 16:55:35,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:55:35,752 INFO L225 Difference]: With dead ends: 4807 [2024-11-08 16:55:35,752 INFO L226 Difference]: Without dead ends: 4257 [2024-11-08 16:55:35,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:55:35,758 INFO L432 NwaCegarLoop]: 1546 mSDtfsCounter, 3047 mSDsluCounter, 1607 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3047 SdHoareTripleChecker+Valid, 3153 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:55:35,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3047 Valid, 3153 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:55:35,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4257 states. [2024-11-08 16:55:35,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4257 to 3851. [2024-11-08 16:55:35,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3851 states, 3849 states have (on average 1.5710574175110419) internal successors, (6047), 3850 states have internal predecessors, (6047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:35,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3851 states to 3851 states and 6047 transitions. [2024-11-08 16:55:35,835 INFO L78 Accepts]: Start accepts. Automaton has 3851 states and 6047 transitions. Word has length 54 [2024-11-08 16:55:35,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:55:35,835 INFO L471 AbstractCegarLoop]: Abstraction has 3851 states and 6047 transitions. [2024-11-08 16:55:35,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:35,836 INFO L276 IsEmpty]: Start isEmpty. Operand 3851 states and 6047 transitions. [2024-11-08 16:55:35,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-08 16:55:35,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:55:35,837 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] [2024-11-08 16:55:35,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 16:55:35,837 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:55:35,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:55:35,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1336470191, now seen corresponding path program 1 times [2024-11-08 16:55:35,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:55:35,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269259967] [2024-11-08 16:55:35,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:55:35,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:55:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:35,893 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:55:35,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:55:35,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269259967] [2024-11-08 16:55:35,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269259967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:55:35,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:55:35,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:55:35,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920104742] [2024-11-08 16:55:35,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:55:35,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:55:35,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:55:35,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:55:35,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:55:35,895 INFO L87 Difference]: Start difference. First operand 3851 states and 6047 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:35,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:55:35,943 INFO L93 Difference]: Finished difference Result 6175 states and 9257 transitions. [2024-11-08 16:55:35,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:55:35,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2024-11-08 16:55:35,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:55:35,949 INFO L225 Difference]: With dead ends: 6175 [2024-11-08 16:55:35,949 INFO L226 Difference]: Without dead ends: 3853 [2024-11-08 16:55:35,952 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:55:35,952 INFO L432 NwaCegarLoop]: 1526 mSDtfsCounter, 29 mSDsluCounter, 1496 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 3022 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 [2024-11-08 16:55:35,953 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 3022 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:55:35,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3853 states. [2024-11-08 16:55:36,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3853 to 3851. [2024-11-08 16:55:36,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3851 states, 3849 states have (on average 1.558067030397506) internal successors, (5997), 3850 states have internal predecessors, (5997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:36,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3851 states to 3851 states and 5997 transitions. [2024-11-08 16:55:36,017 INFO L78 Accepts]: Start accepts. Automaton has 3851 states and 5997 transitions. Word has length 55 [2024-11-08 16:55:36,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:55:36,017 INFO L471 AbstractCegarLoop]: Abstraction has 3851 states and 5997 transitions. [2024-11-08 16:55:36,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:36,018 INFO L276 IsEmpty]: Start isEmpty. Operand 3851 states and 5997 transitions. [2024-11-08 16:55:36,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-08 16:55:36,019 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:55:36,019 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] [2024-11-08 16:55:36,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 16:55:36,019 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:55:36,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:55:36,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1355833083, now seen corresponding path program 1 times [2024-11-08 16:55:36,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:55:36,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350883828] [2024-11-08 16:55:36,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:55:36,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:55:36,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:36,078 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:55:36,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:55:36,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350883828] [2024-11-08 16:55:36,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350883828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:55:36,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:55:36,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:55:36,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368721046] [2024-11-08 16:55:36,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:55:36,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:55:36,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:55:36,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:55:36,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:55:36,080 INFO L87 Difference]: Start difference. First operand 3851 states and 5997 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:36,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:55:36,113 INFO L93 Difference]: Finished difference Result 4770 states and 7257 transitions. [2024-11-08 16:55:36,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:55:36,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2024-11-08 16:55:36,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:55:36,117 INFO L225 Difference]: With dead ends: 4770 [2024-11-08 16:55:36,117 INFO L226 Difference]: Without dead ends: 2448 [2024-11-08 16:55:36,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:55:36,119 INFO L432 NwaCegarLoop]: 1524 mSDtfsCounter, 23 mSDsluCounter, 1495 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 3019 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 [2024-11-08 16:55:36,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 3019 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:55:36,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2448 states. [2024-11-08 16:55:36,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2448 to 2440. [2024-11-08 16:55:36,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2440 states, 2438 states have (on average 1.6702214930270713) internal successors, (4072), 2439 states have internal predecessors, (4072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:36,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2440 states to 2440 states and 4072 transitions. [2024-11-08 16:55:36,152 INFO L78 Accepts]: Start accepts. Automaton has 2440 states and 4072 transitions. Word has length 56 [2024-11-08 16:55:36,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:55:36,153 INFO L471 AbstractCegarLoop]: Abstraction has 2440 states and 4072 transitions. [2024-11-08 16:55:36,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:36,153 INFO L276 IsEmpty]: Start isEmpty. Operand 2440 states and 4072 transitions. [2024-11-08 16:55:36,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-08 16:55:36,153 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:55:36,153 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] [2024-11-08 16:55:36,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 16:55:36,153 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:55:36,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:55:36,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1597882527, now seen corresponding path program 1 times [2024-11-08 16:55:36,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:55:36,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869826553] [2024-11-08 16:55:36,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:55:36,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:55:36,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:36,219 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:55:36,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:55:36,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869826553] [2024-11-08 16:55:36,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869826553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:55:36,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:55:36,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:55:36,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192441397] [2024-11-08 16:55:36,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:55:36,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:55:36,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:55:36,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:55:36,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:55:36,221 INFO L87 Difference]: Start difference. First operand 2440 states and 4072 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:36,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:55:36,244 INFO L93 Difference]: Finished difference Result 2894 states and 4686 transitions. [2024-11-08 16:55:36,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:55:36,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-11-08 16:55:36,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:55:36,248 INFO L225 Difference]: With dead ends: 2894 [2024-11-08 16:55:36,248 INFO L226 Difference]: Without dead ends: 1992 [2024-11-08 16:55:36,249 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:55:36,249 INFO L432 NwaCegarLoop]: 1518 mSDtfsCounter, 25 mSDsluCounter, 1480 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 2998 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 [2024-11-08 16:55:36,250 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 2998 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:55:36,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1992 states. [2024-11-08 16:55:36,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1992 to 1990. [2024-11-08 16:55:36,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1990 states, 1988 states have (on average 1.7359154929577465) internal successors, (3451), 1989 states have internal predecessors, (3451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:36,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1990 states to 1990 states and 3451 transitions. [2024-11-08 16:55:36,275 INFO L78 Accepts]: Start accepts. Automaton has 1990 states and 3451 transitions. Word has length 57 [2024-11-08 16:55:36,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:55:36,275 INFO L471 AbstractCegarLoop]: Abstraction has 1990 states and 3451 transitions. [2024-11-08 16:55:36,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:36,275 INFO L276 IsEmpty]: Start isEmpty. Operand 1990 states and 3451 transitions. [2024-11-08 16:55:36,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-08 16:55:36,276 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:55:36,276 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 16:55:36,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 16:55:36,276 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:55:36,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:55:36,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1649038701, now seen corresponding path program 1 times [2024-11-08 16:55:36,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:55:36,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582714261] [2024-11-08 16:55:36,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:55:36,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:55:36,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:36,376 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 16:55:36,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:55:36,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582714261] [2024-11-08 16:55:36,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582714261] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:55:36,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903321942] [2024-11-08 16:55:36,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:55:36,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:55:36,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 16:55:36,380 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:55:36,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 16:55:36,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:36,495 INFO L255 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-08 16:55:36,500 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:55:36,607 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 16:55:36,607 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:55:36,878 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 16:55:36,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903321942] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:55:36,879 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:55:36,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 4] total 10 [2024-11-08 16:55:36,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994755328] [2024-11-08 16:55:36,879 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:55:36,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 16:55:36,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:55:36,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 16:55:36,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:55:36,881 INFO L87 Difference]: Start difference. First operand 1990 states and 3451 transitions. Second operand has 10 states, 10 states have (on average 15.6) internal successors, (156), 10 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:36,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:55:36,983 INFO L93 Difference]: Finished difference Result 3052 states and 4845 transitions. [2024-11-08 16:55:36,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:55:36,983 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.6) internal successors, (156), 10 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-11-08 16:55:36,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:55:36,988 INFO L225 Difference]: With dead ends: 3052 [2024-11-08 16:55:36,988 INFO L226 Difference]: Without dead ends: 2600 [2024-11-08 16:55:36,989 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:55:36,990 INFO L432 NwaCegarLoop]: 1516 mSDtfsCounter, 2938 mSDsluCounter, 4598 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2938 SdHoareTripleChecker+Valid, 6114 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:55:36,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2938 Valid, 6114 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:55:36,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2600 states. [2024-11-08 16:55:37,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2600 to 2545. [2024-11-08 16:55:37,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2545 states, 2543 states have (on average 1.624852536374361) internal successors, (4132), 2544 states have internal predecessors, (4132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:37,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2545 states to 2545 states and 4132 transitions. [2024-11-08 16:55:37,046 INFO L78 Accepts]: Start accepts. Automaton has 2545 states and 4132 transitions. Word has length 59 [2024-11-08 16:55:37,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:55:37,046 INFO L471 AbstractCegarLoop]: Abstraction has 2545 states and 4132 transitions. [2024-11-08 16:55:37,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.6) internal successors, (156), 10 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:37,046 INFO L276 IsEmpty]: Start isEmpty. Operand 2545 states and 4132 transitions. [2024-11-08 16:55:37,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-08 16:55:37,047 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:55:37,047 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] [2024-11-08 16:55:37,062 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 16:55:37,248 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,SelfDestructingSolverStorable15 [2024-11-08 16:55:37,249 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:55:37,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:55:37,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1651307681, now seen corresponding path program 1 times [2024-11-08 16:55:37,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:55:37,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032075304] [2024-11-08 16:55:37,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:55:37,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:55:37,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:37,638 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:55:37,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:55:37,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032075304] [2024-11-08 16:55:37,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032075304] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:55:37,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157861356] [2024-11-08 16:55:37,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:55:37,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:55:37,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 16:55:37,640 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:55:37,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 16:55:37,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:37,717 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 16:55:37,718 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:55:38,013 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:55:38,013 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:55:38,585 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:55:38,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157861356] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:55:38,585 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:55:38,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-08 16:55:38,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158402948] [2024-11-08 16:55:38,585 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:55:38,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-08 16:55:38,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:55:38,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-08 16:55:38,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2024-11-08 16:55:38,586 INFO L87 Difference]: Start difference. First operand 2545 states and 4132 transitions. Second operand has 25 states, 25 states have (on average 5.92) internal successors, (148), 24 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:40,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:55:40,265 INFO L93 Difference]: Finished difference Result 7578 states and 10570 transitions. [2024-11-08 16:55:40,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-08 16:55:40,266 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.92) internal successors, (148), 24 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-08 16:55:40,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:55:40,274 INFO L225 Difference]: With dead ends: 7578 [2024-11-08 16:55:40,274 INFO L226 Difference]: Without dead ends: 6592 [2024-11-08 16:55:40,277 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 817 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=791, Invalid=3115, Unknown=0, NotChecked=0, Total=3906 [2024-11-08 16:55:40,278 INFO L432 NwaCegarLoop]: 1504 mSDtfsCounter, 21684 mSDsluCounter, 6490 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21684 SdHoareTripleChecker+Valid, 7994 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:55:40,278 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21684 Valid, 7994 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 16:55:40,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6592 states. [2024-11-08 16:55:40,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6592 to 5254. [2024-11-08 16:55:40,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5254 states, 5252 states have (on average 1.4228865194211728) internal successors, (7473), 5253 states have internal predecessors, (7473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:40,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5254 states to 5254 states and 7473 transitions. [2024-11-08 16:55:40,385 INFO L78 Accepts]: Start accepts. Automaton has 5254 states and 7473 transitions. Word has length 60 [2024-11-08 16:55:40,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:55:40,385 INFO L471 AbstractCegarLoop]: Abstraction has 5254 states and 7473 transitions. [2024-11-08 16:55:40,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.92) internal successors, (148), 24 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:40,385 INFO L276 IsEmpty]: Start isEmpty. Operand 5254 states and 7473 transitions. [2024-11-08 16:55:40,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-08 16:55:40,386 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:55:40,386 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 16:55:40,399 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 16:55:40,587 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,SelfDestructingSolverStorable16 [2024-11-08 16:55:40,587 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:55:40,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:55:40,588 INFO L85 PathProgramCache]: Analyzing trace with hash 858338323, now seen corresponding path program 1 times [2024-11-08 16:55:40,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:55:40,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78286269] [2024-11-08 16:55:40,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:55:40,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:55:40,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:40,873 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:55:40,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:55:40,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78286269] [2024-11-08 16:55:40,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78286269] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:55:40,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542164201] [2024-11-08 16:55:40,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:55:40,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:55:40,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 16:55:40,876 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:55:40,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 16:55:40,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:40,963 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 16:55:40,964 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:55:41,444 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:55:41,444 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:55:42,103 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:55:42,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1542164201] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:55:42,104 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:55:42,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 13] total 32 [2024-11-08 16:55:42,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514140058] [2024-11-08 16:55:42,104 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:55:42,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-08 16:55:42,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:55:42,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-08 16:55:42,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=886, Unknown=0, NotChecked=0, Total=992 [2024-11-08 16:55:42,106 INFO L87 Difference]: Start difference. First operand 5254 states and 7473 transitions. Second operand has 32 states, 32 states have (on average 5.0) internal successors, (160), 32 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:44,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:55:44,243 INFO L93 Difference]: Finished difference Result 14647 states and 19287 transitions. [2024-11-08 16:55:44,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-08 16:55:44,243 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 5.0) internal successors, (160), 32 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-08 16:55:44,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:55:44,258 INFO L225 Difference]: With dead ends: 14647 [2024-11-08 16:55:44,258 INFO L226 Difference]: Without dead ends: 11347 [2024-11-08 16:55:44,304 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1169 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=939, Invalid=4173, Unknown=0, NotChecked=0, Total=5112 [2024-11-08 16:55:44,305 INFO L432 NwaCegarLoop]: 1493 mSDtfsCounter, 19639 mSDsluCounter, 13679 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19639 SdHoareTripleChecker+Valid, 15172 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:55:44,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19639 Valid, 15172 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 16:55:44,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11347 states. [2024-11-08 16:55:44,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11347 to 5816. [2024-11-08 16:55:44,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5816 states, 5814 states have (on average 1.393704850361197) internal successors, (8103), 5815 states have internal predecessors, (8103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:44,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5816 states to 5816 states and 8103 transitions. [2024-11-08 16:55:44,537 INFO L78 Accepts]: Start accepts. Automaton has 5816 states and 8103 transitions. Word has length 60 [2024-11-08 16:55:44,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:55:44,537 INFO L471 AbstractCegarLoop]: Abstraction has 5816 states and 8103 transitions. [2024-11-08 16:55:44,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 5.0) internal successors, (160), 32 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:55:44,537 INFO L276 IsEmpty]: Start isEmpty. Operand 5816 states and 8103 transitions. [2024-11-08 16:55:44,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-08 16:55:44,538 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:55:44,538 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 16:55:44,553 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 16:55:44,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-08 16:55:44,743 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:55:44,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:55:44,744 INFO L85 PathProgramCache]: Analyzing trace with hash 69853425, now seen corresponding path program 1 times [2024-11-08 16:55:44,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:55:44,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011135402] [2024-11-08 16:55:44,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:55:44,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:55:44,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:45,706 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:55:45,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:55:45,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011135402] [2024-11-08 16:55:45,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011135402] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:55:45,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563419571] [2024-11-08 16:55:45,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:55:45,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:55:45,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 16:55:45,708 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:55:45,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 16:55:45,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:45,811 INFO L255 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-08 16:55:45,813 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:55:47,405 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:55:47,405 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:55:49,552 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:55:49,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563419571] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:55:49,553 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:55:49,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 19, 18] total 54 [2024-11-08 16:55:49,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039289181] [2024-11-08 16:55:49,553 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:55:49,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2024-11-08 16:55:49,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:55:49,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2024-11-08 16:55:49,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=301, Invalid=2561, Unknown=0, NotChecked=0, Total=2862 [2024-11-08 16:55:49,555 INFO L87 Difference]: Start difference. First operand 5816 states and 8103 transitions. Second operand has 54 states, 54 states have (on average 3.074074074074074) internal successors, (166), 54 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:56:08,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:56:08,817 INFO L93 Difference]: Finished difference Result 14846 states and 19252 transitions. [2024-11-08 16:56:08,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2024-11-08 16:56:08,818 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 3.074074074074074) internal successors, (166), 54 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-08 16:56:08,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:56:08,831 INFO L225 Difference]: With dead ends: 14846 [2024-11-08 16:56:08,832 INFO L226 Difference]: Without dead ends: 11795 [2024-11-08 16:56:08,839 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7266 ImplicationChecksByTransitivity, 18.8s TimeCoverageRelationStatistics Valid=4484, Invalid=20638, Unknown=0, NotChecked=0, Total=25122 [2024-11-08 16:56:08,839 INFO L432 NwaCegarLoop]: 1523 mSDtfsCounter, 28859 mSDsluCounter, 20692 mSDsCounter, 0 mSdLazyCounter, 2700 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28859 SdHoareTripleChecker+Valid, 22215 SdHoareTripleChecker+Invalid, 2797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 2700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-08 16:56:08,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28859 Valid, 22215 Invalid, 2797 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [97 Valid, 2700 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-08 16:56:08,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11795 states. [2024-11-08 16:56:09,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11795 to 7619. [2024-11-08 16:56:09,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7619 states, 7617 states have (on average 1.351844558225023) internal successors, (10297), 7618 states have internal predecessors, (10297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:56:09,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7619 states to 7619 states and 10297 transitions. [2024-11-08 16:56:09,088 INFO L78 Accepts]: Start accepts. Automaton has 7619 states and 10297 transitions. Word has length 61 [2024-11-08 16:56:09,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:56:09,088 INFO L471 AbstractCegarLoop]: Abstraction has 7619 states and 10297 transitions. [2024-11-08 16:56:09,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 3.074074074074074) internal successors, (166), 54 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:56:09,088 INFO L276 IsEmpty]: Start isEmpty. Operand 7619 states and 10297 transitions. [2024-11-08 16:56:09,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-08 16:56:09,089 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:56:09,089 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] [2024-11-08 16:56:09,102 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-08 16:56:09,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:56:09,294 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:56:09,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:56:09,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1759918709, now seen corresponding path program 1 times [2024-11-08 16:56:09,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:56:09,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090430291] [2024-11-08 16:56:09,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:56:09,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:56:09,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:10,291 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:56:10,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:56:10,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090430291] [2024-11-08 16:56:10,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090430291] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:56:10,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205625215] [2024-11-08 16:56:10,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:56:10,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:56:10,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 16:56:10,293 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:56:10,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 16:56:10,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:10,408 INFO L255 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-08 16:56:10,410 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:56:12,427 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:56:12,427 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:56:14,157 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:56:14,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205625215] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:56:14,157 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:56:14,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 22, 21] total 59 [2024-11-08 16:56:14,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764406992] [2024-11-08 16:56:14,157 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:56:14,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2024-11-08 16:56:14,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:56:14,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2024-11-08 16:56:14,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=388, Invalid=3034, Unknown=0, NotChecked=0, Total=3422 [2024-11-08 16:56:14,159 INFO L87 Difference]: Start difference. First operand 7619 states and 10297 transitions. Second operand has 59 states, 59 states have (on average 2.7966101694915255) internal successors, (165), 59 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:56:21,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:56:21,986 INFO L93 Difference]: Finished difference Result 12646 states and 16580 transitions. [2024-11-08 16:56:21,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2024-11-08 16:56:21,987 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 59 states have (on average 2.7966101694915255) internal successors, (165), 59 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-08 16:56:21,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:56:21,997 INFO L225 Difference]: With dead ends: 12646 [2024-11-08 16:56:21,997 INFO L226 Difference]: Without dead ends: 9717 [2024-11-08 16:56:22,002 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 87 SyntacticMatches, 2 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5231 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=3432, Invalid=14658, Unknown=0, NotChecked=0, Total=18090 [2024-11-08 16:56:22,003 INFO L432 NwaCegarLoop]: 1507 mSDtfsCounter, 25110 mSDsluCounter, 24584 mSDsCounter, 0 mSdLazyCounter, 2184 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25110 SdHoareTripleChecker+Valid, 26091 SdHoareTripleChecker+Invalid, 2255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 2184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:56:22,003 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25110 Valid, 26091 Invalid, 2255 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [71 Valid, 2184 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 16:56:22,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9717 states. [2024-11-08 16:56:22,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9717 to 8219. [2024-11-08 16:56:22,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8219 states, 8217 states have (on average 1.3476938055251309) internal successors, (11074), 8218 states have internal predecessors, (11074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:56:22,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8219 states to 8219 states and 11074 transitions. [2024-11-08 16:56:22,289 INFO L78 Accepts]: Start accepts. Automaton has 8219 states and 11074 transitions. Word has length 63 [2024-11-08 16:56:22,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:56:22,289 INFO L471 AbstractCegarLoop]: Abstraction has 8219 states and 11074 transitions. [2024-11-08 16:56:22,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 2.7966101694915255) internal successors, (165), 59 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:56:22,290 INFO L276 IsEmpty]: Start isEmpty. Operand 8219 states and 11074 transitions. [2024-11-08 16:56:22,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-08 16:56:22,293 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:56:22,293 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 16:56:22,306 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 16:56:22,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:56:22,494 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:56:22,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:56:22,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1858862424, now seen corresponding path program 1 times [2024-11-08 16:56:22,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:56:22,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617402537] [2024-11-08 16:56:22,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:56:22,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:56:22,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:22,608 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:56:22,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:56:22,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617402537] [2024-11-08 16:56:22,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617402537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:56:22,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:56:22,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:56:22,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538852592] [2024-11-08 16:56:22,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:56:22,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:56:22,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:56:22,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:56:22,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:56:22,610 INFO L87 Difference]: Start difference. First operand 8219 states and 11074 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:56:26,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:56:26,716 INFO L93 Difference]: Finished difference Result 11976 states and 18072 transitions. [2024-11-08 16:56:26,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:56:26,716 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-11-08 16:56:26,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:56:26,725 INFO L225 Difference]: With dead ends: 11976 [2024-11-08 16:56:26,725 INFO L226 Difference]: Without dead ends: 10472 [2024-11-08 16:56:26,726 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 [2024-11-08 16:56:26,726 INFO L432 NwaCegarLoop]: 763 mSDtfsCounter, 2287 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 4788 mSolverCounterSat, 1179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2287 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 5967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1179 IncrementalHoareTripleChecker+Valid, 4788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-08 16:56:26,726 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2287 Valid, 783 Invalid, 5967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1179 Valid, 4788 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-08 16:56:26,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10472 states. [2024-11-08 16:56:27,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10472 to 10472. [2024-11-08 16:56:27,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10472 states, 10470 states have (on average 1.3049665711556828) internal successors, (13663), 10471 states have internal predecessors, (13663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:56:27,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10472 states to 10472 states and 13663 transitions. [2024-11-08 16:56:27,035 INFO L78 Accepts]: Start accepts. Automaton has 10472 states and 13663 transitions. Word has length 80 [2024-11-08 16:56:27,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:56:27,035 INFO L471 AbstractCegarLoop]: Abstraction has 10472 states and 13663 transitions. [2024-11-08 16:56:27,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:56:27,035 INFO L276 IsEmpty]: Start isEmpty. Operand 10472 states and 13663 transitions. [2024-11-08 16:56:27,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 16:56:27,037 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:56:27,037 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2024-11-08 16:56:27,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 16:56:27,037 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:56:27,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:56:27,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1645833661, now seen corresponding path program 1 times [2024-11-08 16:56:27,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:56:27,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321581431] [2024-11-08 16:56:27,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:56:27,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:56:27,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:27,662 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 31 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:56:27,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:56:27,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321581431] [2024-11-08 16:56:27,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321581431] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:56:27,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483855460] [2024-11-08 16:56:27,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:56:27,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:56:27,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 16:56:27,664 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:56:27,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 16:56:27,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:27,756 INFO L255 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-08 16:56:27,758 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:56:28,219 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 33 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:56:28,220 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:56:29,324 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 31 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:56:29,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1483855460] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:56:29,324 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:56:29,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 11] total 30 [2024-11-08 16:56:29,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061988626] [2024-11-08 16:56:29,324 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:56:29,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-08 16:56:29,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:56:29,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-08 16:56:29,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=811, Unknown=0, NotChecked=0, Total=930 [2024-11-08 16:56:29,327 INFO L87 Difference]: Start difference. First operand 10472 states and 13663 transitions. Second operand has 31 states, 31 states have (on average 7.580645161290323) internal successors, (235), 30 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:56:30,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:56:30,485 INFO L93 Difference]: Finished difference Result 14486 states and 18684 transitions. [2024-11-08 16:56:30,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-08 16:56:30,486 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 7.580645161290323) internal successors, (235), 30 states have internal predecessors, (235), 0 states have call successors, (0), 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 [2024-11-08 16:56:30,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:56:30,497 INFO L225 Difference]: With dead ends: 14486 [2024-11-08 16:56:30,497 INFO L226 Difference]: Without dead ends: 10618 [2024-11-08 16:56:30,502 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 182 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 654 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=741, Invalid=2565, Unknown=0, NotChecked=0, Total=3306 [2024-11-08 16:56:30,503 INFO L432 NwaCegarLoop]: 1536 mSDtfsCounter, 18205 mSDsluCounter, 9373 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18205 SdHoareTripleChecker+Valid, 10909 SdHoareTripleChecker+Invalid, 862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 16:56:30,503 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18205 Valid, 10909 Invalid, 862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 16:56:30,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10618 states. [2024-11-08 16:56:30,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10618 to 10440. [2024-11-08 16:56:30,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10440 states, 10438 states have (on average 1.2962253305230886) internal successors, (13530), 10439 states have internal predecessors, (13530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:56:30,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10440 states to 10440 states and 13530 transitions. [2024-11-08 16:56:30,859 INFO L78 Accepts]: Start accepts. Automaton has 10440 states and 13530 transitions. Word has length 99 [2024-11-08 16:56:30,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:56:30,859 INFO L471 AbstractCegarLoop]: Abstraction has 10440 states and 13530 transitions. [2024-11-08 16:56:30,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 7.580645161290323) internal successors, (235), 30 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:56:30,860 INFO L276 IsEmpty]: Start isEmpty. Operand 10440 states and 13530 transitions. [2024-11-08 16:56:30,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 16:56:30,861 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:56:30,861 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2024-11-08 16:56:30,874 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 16:56:31,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:56:31,062 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:56:31,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:56:31,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1960996049, now seen corresponding path program 1 times [2024-11-08 16:56:31,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:56:31,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583330101] [2024-11-08 16:56:31,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:56:31,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:56:31,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:31,845 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 25 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:56:31,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:56:31,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583330101] [2024-11-08 16:56:31,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583330101] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:56:31,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363760765] [2024-11-08 16:56:31,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:56:31,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:56:31,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 16:56:31,847 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:56:31,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 16:56:31,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:31,954 INFO L255 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 16:56:31,956 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:56:32,569 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 38 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:56:32,569 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:56:33,660 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 34 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:56:33,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363760765] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:56:33,660 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:56:33,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 11, 11] total 41 [2024-11-08 16:56:33,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419805910] [2024-11-08 16:56:33,661 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:56:33,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-08 16:56:33,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:56:33,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-08 16:56:33,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=1586, Unknown=0, NotChecked=0, Total=1722 [2024-11-08 16:56:33,662 INFO L87 Difference]: Start difference. First operand 10440 states and 13530 transitions. Second operand has 42 states, 42 states have (on average 6.309523809523809) internal successors, (265), 41 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:56:44,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:56:44,385 INFO L93 Difference]: Finished difference Result 18975 states and 23936 transitions. [2024-11-08 16:56:44,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2024-11-08 16:56:44,386 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 6.309523809523809) internal successors, (265), 41 states have internal predecessors, (265), 0 states have call successors, (0), 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 [2024-11-08 16:56:44,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:56:44,397 INFO L225 Difference]: With dead ends: 18975 [2024-11-08 16:56:44,397 INFO L226 Difference]: Without dead ends: 16017 [2024-11-08 16:56:44,401 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8437 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=4585, Invalid=22805, Unknown=0, NotChecked=0, Total=27390 [2024-11-08 16:56:44,401 INFO L432 NwaCegarLoop]: 1619 mSDtfsCounter, 28611 mSDsluCounter, 26144 mSDsCounter, 0 mSdLazyCounter, 3101 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28611 SdHoareTripleChecker+Valid, 27763 SdHoareTripleChecker+Invalid, 3210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 3101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:56:44,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28611 Valid, 27763 Invalid, 3210 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [109 Valid, 3101 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-08 16:56:44,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16017 states. [2024-11-08 16:56:44,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16017 to 11307. [2024-11-08 16:56:44,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11307 states, 11305 states have (on average 1.2842989827509952) internal successors, (14519), 11306 states have internal predecessors, (14519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:56:44,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11307 states to 11307 states and 14519 transitions. [2024-11-08 16:56:44,855 INFO L78 Accepts]: Start accepts. Automaton has 11307 states and 14519 transitions. Word has length 99 [2024-11-08 16:56:44,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:56:44,855 INFO L471 AbstractCegarLoop]: Abstraction has 11307 states and 14519 transitions. [2024-11-08 16:56:44,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 6.309523809523809) internal successors, (265), 41 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:56:44,855 INFO L276 IsEmpty]: Start isEmpty. Operand 11307 states and 14519 transitions. [2024-11-08 16:56:44,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 16:56:44,857 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:56:44,857 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2024-11-08 16:56:44,870 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-08 16:56:45,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:56:45,057 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:56:45,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:56:45,058 INFO L85 PathProgramCache]: Analyzing trace with hash -99841195, now seen corresponding path program 1 times [2024-11-08 16:56:45,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:56:45,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655457695] [2024-11-08 16:56:45,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:56:45,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:56:45,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:45,749 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 16 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:56:45,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:56:45,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655457695] [2024-11-08 16:56:45,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655457695] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:56:45,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104054112] [2024-11-08 16:56:45,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:56:45,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:56:45,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 16:56:45,752 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:56:45,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 16:56:45,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:45,858 INFO L255 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-08 16:56:45,860 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:56:47,266 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 16 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:56:47,266 INFO L311 TraceCheckSpWp]: Computing backward predicates...