./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-59.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-59.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6c385b852b90f82574c09ce3a5a40d3e4c1ceeeb1354f53e9c25575a34d805b6 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 01:09:00,400 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 01:09:00,475 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 01:09:00,482 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 01:09:00,483 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 01:09:00,512 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 01:09:00,513 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 01:09:00,513 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 01:09:00,514 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 01:09:00,517 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 01:09:00,517 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 01:09:00,518 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 01:09:00,518 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 01:09:00,518 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 01:09:00,518 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 01:09:00,519 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 01:09:00,520 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 01:09:00,520 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 01:09:00,523 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 01:09:00,523 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 01:09:00,523 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 01:09:00,524 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 01:09:00,524 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 01:09:00,524 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 01:09:00,524 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 01:09:00,524 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 01:09:00,524 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 01:09:00,525 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 01:09:00,525 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 01:09:00,525 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 01:09:00,525 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 01:09:00,525 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 01:09:00,525 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:09:00,526 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 01:09:00,526 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 01:09:00,526 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 01:09:00,526 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 01:09:00,526 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 01:09:00,526 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 01:09:00,526 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 01:09:00,526 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 01:09:00,527 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 01:09:00,527 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c385b852b90f82574c09ce3a5a40d3e4c1ceeeb1354f53e9c25575a34d805b6 [2024-11-19 01:09:00,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 01:09:00,768 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 01:09:00,771 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 01:09:00,772 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 01:09:00,773 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 01:09:00,775 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-59.i [2024-11-19 01:09:02,171 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 01:09:02,350 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 01:09:02,351 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-59.i [2024-11-19 01:09:02,359 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8aceea56/e4501643dc484b199c95504fe99637cd/FLAG0c0fe48a6 [2024-11-19 01:09:02,378 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8aceea56/e4501643dc484b199c95504fe99637cd [2024-11-19 01:09:02,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 01:09:02,382 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 01:09:02,383 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 01:09:02,384 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 01:09:02,388 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 01:09:02,388 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:09:02" (1/1) ... [2024-11-19 01:09:02,391 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47a50dc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:09:02, skipping insertion in model container [2024-11-19 01:09:02,391 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:09:02" (1/1) ... [2024-11-19 01:09:02,415 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 01:09:02,625 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-59.i[916,929] [2024-11-19 01:09:02,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:09:02,760 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 01:09:02,782 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-59.i[916,929] [2024-11-19 01:09:02,828 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:09:02,854 INFO L204 MainTranslator]: Completed translation [2024-11-19 01:09:02,854 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:09:02 WrapperNode [2024-11-19 01:09:02,856 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 01:09:02,857 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 01:09:02,858 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 01:09:02,858 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 01:09:02,866 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:09:02" (1/1) ... [2024-11-19 01:09:02,880 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:09:02" (1/1) ... [2024-11-19 01:09:02,911 INFO L138 Inliner]: procedures = 27, calls = 126, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 345 [2024-11-19 01:09:02,912 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 01:09:02,912 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 01:09:02,912 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 01:09:02,913 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 01:09:02,922 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:09:02" (1/1) ... [2024-11-19 01:09:02,922 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:09:02" (1/1) ... [2024-11-19 01:09:02,926 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:09:02" (1/1) ... [2024-11-19 01:09:02,939 INFO L175 MemorySlicer]: Split 97 memory accesses to 2 slices as follows [2, 95]. 98 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 29 writes are split as follows [0, 29]. [2024-11-19 01:09:02,939 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:09:02" (1/1) ... [2024-11-19 01:09:02,939 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:09:02" (1/1) ... [2024-11-19 01:09:02,949 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:09:02" (1/1) ... [2024-11-19 01:09:02,952 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:09:02" (1/1) ... [2024-11-19 01:09:02,954 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:09:02" (1/1) ... [2024-11-19 01:09:02,955 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:09:02" (1/1) ... [2024-11-19 01:09:02,961 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 01:09:02,962 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 01:09:02,962 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 01:09:02,962 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 01:09:02,963 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:09:02" (1/1) ... [2024-11-19 01:09:02,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:09:02,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:09:03,000 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) [2024-11-19 01:09:03,006 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 [2024-11-19 01:09:03,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 01:09:03,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-19 01:09:03,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-19 01:09:03,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 01:09:03,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 01:09:03,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 01:09:03,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 01:09:03,049 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 01:09:03,049 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 01:09:03,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 01:09:03,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 01:09:03,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 01:09:03,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 01:09:03,163 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 01:09:03,165 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 01:09:03,487 INFO L? ?]: Removed 56 outVars from TransFormulas that were not future-live. [2024-11-19 01:09:03,487 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 01:09:03,504 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 01:09:03,506 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 01:09:03,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:09:03 BoogieIcfgContainer [2024-11-19 01:09:03,506 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 01:09:03,508 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 01:09:03,508 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 01:09:03,512 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 01:09:03,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:09:02" (1/3) ... [2024-11-19 01:09:03,513 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@332579b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:09:03, skipping insertion in model container [2024-11-19 01:09:03,514 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:09:02" (2/3) ... [2024-11-19 01:09:03,514 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@332579b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:09:03, skipping insertion in model container [2024-11-19 01:09:03,514 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:09:03" (3/3) ... [2024-11-19 01:09:03,516 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-59.i [2024-11-19 01:09:03,531 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 01:09:03,531 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 01:09:03,582 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 01:09:03,592 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;@336393f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 01:09:03,593 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 01:09:03,597 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 63 states have (on average 1.3650793650793651) internal successors, (86), 64 states have internal predecessors, (86), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-19 01:09:03,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-19 01:09:03,606 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:03,607 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:03,608 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:03,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:03,612 INFO L85 PathProgramCache]: Analyzing trace with hash 671104331, now seen corresponding path program 1 times [2024-11-19 01:09:03,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:03,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020799239] [2024-11-19 01:09:03,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:03,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:03,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:03,896 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-19 01:09:03,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:03,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020799239] [2024-11-19 01:09:03,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020799239] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:09:03,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006332519] [2024-11-19 01:09:03,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:03,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:09:03,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:09:03,900 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) [2024-11-19 01:09:03,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 01:09:04,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:04,046 INFO L255 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 01:09:04,053 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:09:04,075 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-19 01:09:04,076 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 01:09:04,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006332519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:04,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 01:09:04,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 01:09:04,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366117018] [2024-11-19 01:09:04,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:04,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 01:09:04,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:04,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 01:09:04,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 01:09:04,152 INFO L87 Difference]: Start difference. First operand has 84 states, 63 states have (on average 1.3650793650793651) internal successors, (86), 64 states have internal predecessors, (86), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-19 01:09:04,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:04,181 INFO L93 Difference]: Finished difference Result 161 states and 256 transitions. [2024-11-19 01:09:04,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 01:09:04,183 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 131 [2024-11-19 01:09:04,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:04,190 INFO L225 Difference]: With dead ends: 161 [2024-11-19 01:09:04,190 INFO L226 Difference]: Without dead ends: 80 [2024-11-19 01:09:04,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 01:09:04,195 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:04,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:09:04,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-19 01:09:04,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-11-19 01:09:04,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 60 states have (on average 1.3166666666666667) internal successors, (79), 60 states have internal predecessors, (79), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-19 01:09:04,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 115 transitions. [2024-11-19 01:09:04,229 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 115 transitions. Word has length 131 [2024-11-19 01:09:04,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:04,230 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 115 transitions. [2024-11-19 01:09:04,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-19 01:09:04,230 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 115 transitions. [2024-11-19 01:09:04,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-19 01:09:04,233 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:04,233 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:04,247 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 01:09:04,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-19 01:09:04,434 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:04,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:04,435 INFO L85 PathProgramCache]: Analyzing trace with hash 244988199, now seen corresponding path program 1 times [2024-11-19 01:09:04,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:04,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753723362] [2024-11-19 01:09:04,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:04,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:04,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:05,361 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 01:09:05,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:05,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753723362] [2024-11-19 01:09:05,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753723362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:05,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:05,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:09:05,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381625120] [2024-11-19 01:09:05,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:05,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:09:05,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:05,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:09:05,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:09:05,364 INFO L87 Difference]: Start difference. First operand 80 states and 115 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:05,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:05,649 INFO L93 Difference]: Finished difference Result 235 states and 340 transitions. [2024-11-19 01:09:05,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:09:05,650 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 131 [2024-11-19 01:09:05,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:05,652 INFO L225 Difference]: With dead ends: 235 [2024-11-19 01:09:05,652 INFO L226 Difference]: Without dead ends: 158 [2024-11-19 01:09:05,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:09:05,654 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 76 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:05,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 235 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:09:05,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-11-19 01:09:05,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 148. [2024-11-19 01:09:05,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 109 states have (on average 1.3027522935779816) internal successors, (142), 109 states have internal predecessors, (142), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-19 01:09:05,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 214 transitions. [2024-11-19 01:09:05,686 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 214 transitions. Word has length 131 [2024-11-19 01:09:05,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:05,687 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 214 transitions. [2024-11-19 01:09:05,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:05,688 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 214 transitions. [2024-11-19 01:09:05,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-19 01:09:05,690 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:05,690 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:05,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 01:09:05,691 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:05,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:05,692 INFO L85 PathProgramCache]: Analyzing trace with hash 2109018711, now seen corresponding path program 1 times [2024-11-19 01:09:05,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:05,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335334949] [2024-11-19 01:09:05,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:05,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:05,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:05,773 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 01:09:05,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:05,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335334949] [2024-11-19 01:09:05,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335334949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:05,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:05,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 01:09:05,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862265663] [2024-11-19 01:09:05,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:05,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:09:05,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:05,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:09:05,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:09:05,776 INFO L87 Difference]: Start difference. First operand 148 states and 214 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:05,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:05,791 INFO L93 Difference]: Finished difference Result 248 states and 363 transitions. [2024-11-19 01:09:05,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:09:05,791 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 133 [2024-11-19 01:09:05,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:05,793 INFO L225 Difference]: With dead ends: 248 [2024-11-19 01:09:05,793 INFO L226 Difference]: Without dead ends: 150 [2024-11-19 01:09:05,794 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 [2024-11-19 01:09:05,794 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 0 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:05,795 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 222 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:09:05,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-19 01:09:05,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-11-19 01:09:05,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 111 states have (on average 1.2972972972972974) internal successors, (144), 111 states have internal predecessors, (144), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-19 01:09:05,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 216 transitions. [2024-11-19 01:09:05,811 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 216 transitions. Word has length 133 [2024-11-19 01:09:05,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:05,811 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 216 transitions. [2024-11-19 01:09:05,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:05,812 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 216 transitions. [2024-11-19 01:09:05,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-19 01:09:05,813 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:05,813 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:05,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 01:09:05,814 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:05,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:05,814 INFO L85 PathProgramCache]: Analyzing trace with hash 114874005, now seen corresponding path program 1 times [2024-11-19 01:09:05,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:05,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627695919] [2024-11-19 01:09:05,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:05,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:05,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:06,637 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 01:09:06,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:06,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627695919] [2024-11-19 01:09:06,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627695919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:06,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:06,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:09:06,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460357822] [2024-11-19 01:09:06,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:06,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:09:06,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:06,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:09:06,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:09:06,644 INFO L87 Difference]: Start difference. First operand 150 states and 216 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:06,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:06,858 INFO L93 Difference]: Finished difference Result 322 states and 467 transitions. [2024-11-19 01:09:06,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:09:06,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 133 [2024-11-19 01:09:06,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:06,860 INFO L225 Difference]: With dead ends: 322 [2024-11-19 01:09:06,862 INFO L226 Difference]: Without dead ends: 228 [2024-11-19 01:09:06,864 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:09:06,864 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 60 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:06,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 170 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:09:06,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-11-19 01:09:06,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 226. [2024-11-19 01:09:06,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 168 states have (on average 1.2976190476190477) internal successors, (218), 168 states have internal predecessors, (218), 54 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-19 01:09:06,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 326 transitions. [2024-11-19 01:09:06,895 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 326 transitions. Word has length 133 [2024-11-19 01:09:06,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:06,896 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 326 transitions. [2024-11-19 01:09:06,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:06,896 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 326 transitions. [2024-11-19 01:09:06,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-19 01:09:06,898 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:06,898 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:06,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 01:09:06,898 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:06,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:06,898 INFO L85 PathProgramCache]: Analyzing trace with hash -471932009, now seen corresponding path program 1 times [2024-11-19 01:09:06,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:06,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103318838] [2024-11-19 01:09:06,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:06,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:06,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:07,690 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 01:09:07,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:07,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103318838] [2024-11-19 01:09:07,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103318838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:07,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:07,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:09:07,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397423645] [2024-11-19 01:09:07,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:07,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:09:07,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:07,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:09:07,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:09:07,694 INFO L87 Difference]: Start difference. First operand 226 states and 326 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:07,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:07,893 INFO L93 Difference]: Finished difference Result 395 states and 571 transitions. [2024-11-19 01:09:07,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:09:07,894 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 133 [2024-11-19 01:09:07,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:07,896 INFO L225 Difference]: With dead ends: 395 [2024-11-19 01:09:07,896 INFO L226 Difference]: Without dead ends: 228 [2024-11-19 01:09:07,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:09:07,897 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 57 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:07,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 170 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:09:07,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-11-19 01:09:07,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 226. [2024-11-19 01:09:07,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 168 states have (on average 1.2857142857142858) internal successors, (216), 168 states have internal predecessors, (216), 54 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-19 01:09:07,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 324 transitions. [2024-11-19 01:09:07,912 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 324 transitions. Word has length 133 [2024-11-19 01:09:07,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:07,913 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 324 transitions. [2024-11-19 01:09:07,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:07,913 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 324 transitions. [2024-11-19 01:09:07,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-19 01:09:07,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:07,915 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:07,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 01:09:07,915 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:07,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:07,915 INFO L85 PathProgramCache]: Analyzing trace with hash -864959019, now seen corresponding path program 1 times [2024-11-19 01:09:07,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:07,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517466673] [2024-11-19 01:09:07,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:07,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:07,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:09,250 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 01:09:09,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:09,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517466673] [2024-11-19 01:09:09,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517466673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:09,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:09,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 01:09:09,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893963915] [2024-11-19 01:09:09,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:09,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 01:09:09,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:09,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 01:09:09,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:09:09,252 INFO L87 Difference]: Start difference. First operand 226 states and 324 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:09,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:09,588 INFO L93 Difference]: Finished difference Result 461 states and 659 transitions. [2024-11-19 01:09:09,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 01:09:09,588 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 133 [2024-11-19 01:09:09,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:09,590 INFO L225 Difference]: With dead ends: 461 [2024-11-19 01:09:09,591 INFO L226 Difference]: Without dead ends: 301 [2024-11-19 01:09:09,592 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-19 01:09:09,593 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 196 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:09,594 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 316 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 01:09:09,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-11-19 01:09:09,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 241. [2024-11-19 01:09:09,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 183 states have (on average 1.284153005464481) internal successors, (235), 183 states have internal predecessors, (235), 54 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-19 01:09:09,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 343 transitions. [2024-11-19 01:09:09,619 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 343 transitions. Word has length 133 [2024-11-19 01:09:09,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:09,619 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 343 transitions. [2024-11-19 01:09:09,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:09,620 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 343 transitions. [2024-11-19 01:09:09,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-19 01:09:09,621 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:09,621 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:09,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 01:09:09,622 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:09,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:09,622 INFO L85 PathProgramCache]: Analyzing trace with hash -184900649, now seen corresponding path program 1 times [2024-11-19 01:09:09,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:09,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744959371] [2024-11-19 01:09:09,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:09,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:09,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:09,836 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 01:09:09,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:09,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744959371] [2024-11-19 01:09:09,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744959371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:09,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:09,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:09:09,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762602900] [2024-11-19 01:09:09,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:09,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:09:09,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:09,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:09:09,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:09:09,839 INFO L87 Difference]: Start difference. First operand 241 states and 343 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:10,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:10,038 INFO L93 Difference]: Finished difference Result 463 states and 662 transitions. [2024-11-19 01:09:10,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:09:10,038 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 133 [2024-11-19 01:09:10,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:10,040 INFO L225 Difference]: With dead ends: 463 [2024-11-19 01:09:10,040 INFO L226 Difference]: Without dead ends: 287 [2024-11-19 01:09:10,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:09:10,041 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 75 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:10,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 290 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:09:10,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2024-11-19 01:09:10,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 253. [2024-11-19 01:09:10,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 195 states have (on average 1.2871794871794873) internal successors, (251), 195 states have internal predecessors, (251), 54 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-19 01:09:10,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 359 transitions. [2024-11-19 01:09:10,062 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 359 transitions. Word has length 133 [2024-11-19 01:09:10,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:10,063 INFO L471 AbstractCegarLoop]: Abstraction has 253 states and 359 transitions. [2024-11-19 01:09:10,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:10,064 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 359 transitions. [2024-11-19 01:09:10,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-19 01:09:10,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:10,066 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:10,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 01:09:10,066 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:10,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:10,067 INFO L85 PathProgramCache]: Analyzing trace with hash -606793581, now seen corresponding path program 1 times [2024-11-19 01:09:10,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:10,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342644452] [2024-11-19 01:09:10,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:10,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:10,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:10,245 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 01:09:10,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:10,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342644452] [2024-11-19 01:09:10,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342644452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:10,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:10,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:09:10,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508435915] [2024-11-19 01:09:10,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:10,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:09:10,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:10,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:09:10,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:09:10,247 INFO L87 Difference]: Start difference. First operand 253 states and 359 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:10,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:10,442 INFO L93 Difference]: Finished difference Result 474 states and 675 transitions. [2024-11-19 01:09:10,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:09:10,443 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 133 [2024-11-19 01:09:10,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:10,445 INFO L225 Difference]: With dead ends: 474 [2024-11-19 01:09:10,445 INFO L226 Difference]: Without dead ends: 283 [2024-11-19 01:09:10,446 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 [2024-11-19 01:09:10,447 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 77 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:10,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 292 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:09:10,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2024-11-19 01:09:10,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 249. [2024-11-19 01:09:10,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 191 states have (on average 1.2827225130890052) internal successors, (245), 191 states have internal predecessors, (245), 54 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-19 01:09:10,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 353 transitions. [2024-11-19 01:09:10,470 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 353 transitions. Word has length 133 [2024-11-19 01:09:10,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:10,470 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 353 transitions. [2024-11-19 01:09:10,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:10,471 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 353 transitions. [2024-11-19 01:09:10,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-19 01:09:10,472 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:10,472 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:10,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 01:09:10,472 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:10,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:10,473 INFO L85 PathProgramCache]: Analyzing trace with hash 417983591, now seen corresponding path program 1 times [2024-11-19 01:09:10,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:10,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993568830] [2024-11-19 01:09:10,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:10,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:10,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:10,679 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 01:09:10,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:10,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993568830] [2024-11-19 01:09:10,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993568830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:10,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:10,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:09:10,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601503084] [2024-11-19 01:09:10,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:10,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:09:10,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:10,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:09:10,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:09:10,681 INFO L87 Difference]: Start difference. First operand 249 states and 353 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:10,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:10,838 INFO L93 Difference]: Finished difference Result 569 states and 803 transitions. [2024-11-19 01:09:10,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:09:10,838 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 135 [2024-11-19 01:09:10,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:10,840 INFO L225 Difference]: With dead ends: 569 [2024-11-19 01:09:10,840 INFO L226 Difference]: Without dead ends: 392 [2024-11-19 01:09:10,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:09:10,842 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 57 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:10,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 535 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:09:10,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-11-19 01:09:10,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 388. [2024-11-19 01:09:10,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 312 states have (on average 1.2884615384615385) internal successors, (402), 314 states have internal predecessors, (402), 70 states have call successors, (70), 5 states have call predecessors, (70), 5 states have return successors, (70), 68 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-19 01:09:10,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 542 transitions. [2024-11-19 01:09:10,861 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 542 transitions. Word has length 135 [2024-11-19 01:09:10,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:10,862 INFO L471 AbstractCegarLoop]: Abstraction has 388 states and 542 transitions. [2024-11-19 01:09:10,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:10,862 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 542 transitions. [2024-11-19 01:09:10,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-19 01:09:10,863 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:10,863 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:10,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 01:09:10,863 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:10,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:10,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1890331904, now seen corresponding path program 1 times [2024-11-19 01:09:10,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:10,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348276648] [2024-11-19 01:09:10,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:10,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:10,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 01:09:10,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [972835094] [2024-11-19 01:09:10,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:10,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:09:10,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:09:10,925 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) [2024-11-19 01:09:10,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 01:09:11,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:11,073 INFO L255 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-19 01:09:11,081 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:09:11,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 64 [2024-11-19 01:09:11,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 146 treesize of output 120 [2024-11-19 01:09:11,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:09:11,511 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:09:11,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:09:11,586 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:09:11,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:09:11,683 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:09:11,721 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:09:11,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:09:11,941 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:09:11,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 25 [2024-11-19 01:09:11,994 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:09:11,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 25 [2024-11-19 01:09:12,074 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:09:12,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 13 [2024-11-19 01:09:12,149 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 01:09:12,150 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 01:09:12,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:12,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348276648] [2024-11-19 01:09:12,151 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 01:09:12,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972835094] [2024-11-19 01:09:12,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972835094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:12,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:12,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:09:12,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833573146] [2024-11-19 01:09:12,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:12,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:09:12,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:12,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:09:12,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:09:12,152 INFO L87 Difference]: Start difference. First operand 388 states and 542 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:14,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:14,853 INFO L93 Difference]: Finished difference Result 714 states and 993 transitions. [2024-11-19 01:09:14,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:09:14,853 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 136 [2024-11-19 01:09:14,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:14,861 INFO L225 Difference]: With dead ends: 714 [2024-11-19 01:09:14,861 INFO L226 Difference]: Without dead ends: 412 [2024-11-19 01:09:14,862 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:09:14,866 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 68 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:14,867 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 447 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-19 01:09:14,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-11-19 01:09:14,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 392. [2024-11-19 01:09:14,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 315 states have (on average 1.2825396825396826) internal successors, (404), 317 states have internal predecessors, (404), 70 states have call successors, (70), 6 states have call predecessors, (70), 6 states have return successors, (70), 68 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-19 01:09:14,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 544 transitions. [2024-11-19 01:09:14,907 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 544 transitions. Word has length 136 [2024-11-19 01:09:14,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:14,908 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 544 transitions. [2024-11-19 01:09:14,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:14,908 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 544 transitions. [2024-11-19 01:09:14,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-19 01:09:14,909 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:14,909 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:14,926 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 01:09:15,109 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,SelfDestructingSolverStorable9 [2024-11-19 01:09:15,110 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:15,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:15,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1673452204, now seen corresponding path program 1 times [2024-11-19 01:09:15,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:15,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85121253] [2024-11-19 01:09:15,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:15,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:15,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 01:09:15,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1947908589] [2024-11-19 01:09:15,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:15,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:09:15,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:09:15,172 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) [2024-11-19 01:09:15,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 01:09:15,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:15,331 INFO L255 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-19 01:09:15,336 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:09:15,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 64 [2024-11-19 01:09:15,575 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 146 treesize of output 120 [2024-11-19 01:09:15,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:09:15,676 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:09:15,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:09:15,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:09:15,814 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:09:15,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:09:15,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:09:15,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:09:16,040 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:09:16,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 25 [2024-11-19 01:09:16,136 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:09:16,136 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 25 [2024-11-19 01:09:16,213 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:09:16,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 13 [2024-11-19 01:09:16,284 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 01:09:16,284 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 01:09:16,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:16,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85121253] [2024-11-19 01:09:16,285 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 01:09:16,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947908589] [2024-11-19 01:09:16,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947908589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:16,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:16,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:09:16,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278907124] [2024-11-19 01:09:16,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:16,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:09:16,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:16,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:09:16,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:09:16,287 INFO L87 Difference]: Start difference. First operand 392 states and 544 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:18,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:18,992 INFO L93 Difference]: Finished difference Result 711 states and 988 transitions. [2024-11-19 01:09:18,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:09:18,993 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 137 [2024-11-19 01:09:18,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:18,995 INFO L225 Difference]: With dead ends: 711 [2024-11-19 01:09:18,995 INFO L226 Difference]: Without dead ends: 407 [2024-11-19 01:09:18,995 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-19 01:09:18,996 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 65 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:18,996 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 374 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-19 01:09:18,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2024-11-19 01:09:19,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 387. [2024-11-19 01:09:19,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 310 states have (on average 1.2774193548387096) internal successors, (396), 312 states have internal predecessors, (396), 70 states have call successors, (70), 6 states have call predecessors, (70), 6 states have return successors, (70), 68 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-19 01:09:19,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 536 transitions. [2024-11-19 01:09:19,012 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 536 transitions. Word has length 137 [2024-11-19 01:09:19,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:19,012 INFO L471 AbstractCegarLoop]: Abstraction has 387 states and 536 transitions. [2024-11-19 01:09:19,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:19,012 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 536 transitions. [2024-11-19 01:09:19,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-19 01:09:19,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:19,013 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:19,038 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 01:09:19,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:09:19,213 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:19,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:19,214 INFO L85 PathProgramCache]: Analyzing trace with hash -414613755, now seen corresponding path program 1 times [2024-11-19 01:09:19,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:19,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707809717] [2024-11-19 01:09:19,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:19,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:19,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:20,497 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 01:09:20,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:20,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707809717] [2024-11-19 01:09:20,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707809717] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:20,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:20,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:09:20,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734650219] [2024-11-19 01:09:20,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:20,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:09:20,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:20,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:09:20,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:09:20,500 INFO L87 Difference]: Start difference. First operand 387 states and 536 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:20,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:20,812 INFO L93 Difference]: Finished difference Result 812 states and 1127 transitions. [2024-11-19 01:09:20,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:09:20,812 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 138 [2024-11-19 01:09:20,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:20,815 INFO L225 Difference]: With dead ends: 812 [2024-11-19 01:09:20,815 INFO L226 Difference]: Without dead ends: 517 [2024-11-19 01:09:20,816 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-19 01:09:20,816 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 47 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:20,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 708 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:09:20,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2024-11-19 01:09:20,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 513. [2024-11-19 01:09:20,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 426 states have (on average 1.284037558685446) internal successors, (547), 430 states have internal predecessors, (547), 78 states have call successors, (78), 8 states have call predecessors, (78), 8 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-19 01:09:20,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 703 transitions. [2024-11-19 01:09:20,840 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 703 transitions. Word has length 138 [2024-11-19 01:09:20,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:20,840 INFO L471 AbstractCegarLoop]: Abstraction has 513 states and 703 transitions. [2024-11-19 01:09:20,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:20,841 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 703 transitions. [2024-11-19 01:09:20,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-19 01:09:20,843 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:20,843 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:20,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 01:09:20,843 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:20,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:20,843 INFO L85 PathProgramCache]: Analyzing trace with hash 265444615, now seen corresponding path program 1 times [2024-11-19 01:09:20,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:20,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762083675] [2024-11-19 01:09:20,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:20,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:20,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:21,291 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 01:09:21,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:21,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762083675] [2024-11-19 01:09:21,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762083675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:21,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:21,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:09:21,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141558762] [2024-11-19 01:09:21,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:21,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:09:21,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:21,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:09:21,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:09:21,296 INFO L87 Difference]: Start difference. First operand 513 states and 703 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:21,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:21,444 INFO L93 Difference]: Finished difference Result 916 states and 1267 transitions. [2024-11-19 01:09:21,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:09:21,444 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), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 138 [2024-11-19 01:09:21,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:21,447 INFO L225 Difference]: With dead ends: 916 [2024-11-19 01:09:21,447 INFO L226 Difference]: Without dead ends: 509 [2024-11-19 01:09:21,448 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:09:21,449 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 31 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:21,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 395 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:09:21,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-11-19 01:09:21,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 507. [2024-11-19 01:09:21,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 420 states have (on average 1.2785714285714285) internal successors, (537), 424 states have internal predecessors, (537), 78 states have call successors, (78), 8 states have call predecessors, (78), 8 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-19 01:09:21,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 693 transitions. [2024-11-19 01:09:21,475 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 693 transitions. Word has length 138 [2024-11-19 01:09:21,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:21,475 INFO L471 AbstractCegarLoop]: Abstraction has 507 states and 693 transitions. [2024-11-19 01:09:21,476 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), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:21,476 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 693 transitions. [2024-11-19 01:09:21,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-19 01:09:21,477 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:21,477 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:21,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 01:09:21,478 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:21,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:21,478 INFO L85 PathProgramCache]: Analyzing trace with hash -2103557497, now seen corresponding path program 1 times [2024-11-19 01:09:21,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:21,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632422594] [2024-11-19 01:09:21,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:21,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:21,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:21,946 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 01:09:21,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:21,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632422594] [2024-11-19 01:09:21,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632422594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:21,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:21,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:09:21,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383677627] [2024-11-19 01:09:21,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:21,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:09:21,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:21,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:09:21,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:09:21,948 INFO L87 Difference]: Start difference. First operand 507 states and 693 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:22,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:22,112 INFO L93 Difference]: Finished difference Result 914 states and 1260 transitions. [2024-11-19 01:09:22,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:09:22,113 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), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 138 [2024-11-19 01:09:22,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:22,115 INFO L225 Difference]: With dead ends: 914 [2024-11-19 01:09:22,116 INFO L226 Difference]: Without dead ends: 509 [2024-11-19 01:09:22,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:09:22,119 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 29 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:22,119 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 383 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:09:22,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-11-19 01:09:22,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 507. [2024-11-19 01:09:22,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 420 states have (on average 1.2714285714285714) internal successors, (534), 424 states have internal predecessors, (534), 78 states have call successors, (78), 8 states have call predecessors, (78), 8 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-19 01:09:22,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 690 transitions. [2024-11-19 01:09:22,140 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 690 transitions. Word has length 138 [2024-11-19 01:09:22,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:22,141 INFO L471 AbstractCegarLoop]: Abstraction has 507 states and 690 transitions. [2024-11-19 01:09:22,141 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), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:22,141 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 690 transitions. [2024-11-19 01:09:22,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-19 01:09:22,142 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:22,143 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:22,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 01:09:22,143 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:22,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:22,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1423499127, now seen corresponding path program 1 times [2024-11-19 01:09:22,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:22,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245625439] [2024-11-19 01:09:22,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:22,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:22,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:22,358 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 01:09:22,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:22,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245625439] [2024-11-19 01:09:22,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245625439] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:22,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:22,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:09:22,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046362187] [2024-11-19 01:09:22,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:22,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:09:22,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:22,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:09:22,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:09:22,360 INFO L87 Difference]: Start difference. First operand 507 states and 690 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:22,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:22,563 INFO L93 Difference]: Finished difference Result 930 states and 1272 transitions. [2024-11-19 01:09:22,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:09:22,564 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 138 [2024-11-19 01:09:22,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:22,568 INFO L225 Difference]: With dead ends: 930 [2024-11-19 01:09:22,568 INFO L226 Difference]: Without dead ends: 533 [2024-11-19 01:09:22,569 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-19 01:09:22,569 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 50 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:22,569 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 766 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:09:22,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2024-11-19 01:09:22,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 529. [2024-11-19 01:09:22,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 436 states have (on average 1.2591743119266054) internal successors, (549), 440 states have internal predecessors, (549), 82 states have call successors, (82), 10 states have call predecessors, (82), 10 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-19 01:09:22,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 713 transitions. [2024-11-19 01:09:22,591 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 713 transitions. Word has length 138 [2024-11-19 01:09:22,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:22,591 INFO L471 AbstractCegarLoop]: Abstraction has 529 states and 713 transitions. [2024-11-19 01:09:22,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:22,592 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 713 transitions. [2024-11-19 01:09:22,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-19 01:09:22,593 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:22,593 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:22,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 01:09:22,594 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:22,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:22,595 INFO L85 PathProgramCache]: Analyzing trace with hash -611585728, now seen corresponding path program 1 times [2024-11-19 01:09:22,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:22,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108193045] [2024-11-19 01:09:22,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:22,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:22,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:22,630 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 01:09:22,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:22,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108193045] [2024-11-19 01:09:22,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108193045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:22,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:22,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 01:09:22,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29148032] [2024-11-19 01:09:22,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:22,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:09:22,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:22,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:09:22,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:09:22,632 INFO L87 Difference]: Start difference. First operand 529 states and 713 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:22,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:22,662 INFO L93 Difference]: Finished difference Result 957 states and 1308 transitions. [2024-11-19 01:09:22,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:09:22,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 140 [2024-11-19 01:09:22,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:22,666 INFO L225 Difference]: With dead ends: 957 [2024-11-19 01:09:22,666 INFO L226 Difference]: Without dead ends: 538 [2024-11-19 01:09:22,667 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 [2024-11-19 01:09:22,668 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 0 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:22,668 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 221 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:09:22,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2024-11-19 01:09:22,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2024-11-19 01:09:22,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 445 states have (on average 1.253932584269663) internal successors, (558), 449 states have internal predecessors, (558), 82 states have call successors, (82), 10 states have call predecessors, (82), 10 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-19 01:09:22,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 722 transitions. [2024-11-19 01:09:22,692 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 722 transitions. Word has length 140 [2024-11-19 01:09:22,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:22,692 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 722 transitions. [2024-11-19 01:09:22,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:22,692 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 722 transitions. [2024-11-19 01:09:22,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-19 01:09:22,693 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:22,693 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:22,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 01:09:22,693 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:22,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:22,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1420932354, now seen corresponding path program 1 times [2024-11-19 01:09:22,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:22,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289420674] [2024-11-19 01:09:22,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:22,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:22,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:22,835 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 42 proven. 9 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-19 01:09:22,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:22,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289420674] [2024-11-19 01:09:22,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289420674] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:09:22,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562067497] [2024-11-19 01:09:22,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:22,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:09:22,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:09:22,841 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) [2024-11-19 01:09:22,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 01:09:22,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:22,980 INFO L255 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 01:09:22,983 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:09:23,016 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 01:09:23,017 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 01:09:23,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562067497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:23,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 01:09:23,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 12 [2024-11-19 01:09:23,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91136332] [2024-11-19 01:09:23,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:23,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:09:23,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:23,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:09:23,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-19 01:09:23,018 INFO L87 Difference]: Start difference. First operand 538 states and 722 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:23,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:23,080 INFO L93 Difference]: Finished difference Result 570 states and 759 transitions. [2024-11-19 01:09:23,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:09:23,081 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 140 [2024-11-19 01:09:23,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:23,083 INFO L225 Difference]: With dead ends: 570 [2024-11-19 01:09:23,083 INFO L226 Difference]: Without dead ends: 568 [2024-11-19 01:09:23,083 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-19 01:09:23,084 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 0 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:23,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 648 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:09:23,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2024-11-19 01:09:23,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2024-11-19 01:09:23,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 475 states have (on average 1.2378947368421052) internal successors, (588), 479 states have internal predecessors, (588), 82 states have call successors, (82), 10 states have call predecessors, (82), 10 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-19 01:09:23,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 752 transitions. [2024-11-19 01:09:23,110 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 752 transitions. Word has length 140 [2024-11-19 01:09:23,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:23,111 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 752 transitions. [2024-11-19 01:09:23,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:23,111 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 752 transitions. [2024-11-19 01:09:23,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-19 01:09:23,111 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:23,112 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:23,129 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 01:09:23,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-19 01:09:23,318 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:23,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:23,318 INFO L85 PathProgramCache]: Analyzing trace with hash 984376857, now seen corresponding path program 1 times [2024-11-19 01:09:23,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:23,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177657421] [2024-11-19 01:09:23,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:23,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:23,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:23,501 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 42 proven. 9 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-19 01:09:23,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:23,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177657421] [2024-11-19 01:09:23,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177657421] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:09:23,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21214793] [2024-11-19 01:09:23,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:23,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:09:23,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:09:23,504 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) [2024-11-19 01:09:23,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 01:09:23,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:23,641 INFO L255 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 01:09:23,644 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:09:23,729 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 01:09:23,730 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 01:09:23,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [21214793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:23,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 01:09:23,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 15 [2024-11-19 01:09:23,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030447375] [2024-11-19 01:09:23,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:23,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 01:09:23,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:23,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 01:09:23,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-11-19 01:09:23,731 INFO L87 Difference]: Start difference. First operand 568 states and 752 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:23,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:23,810 INFO L93 Difference]: Finished difference Result 606 states and 795 transitions. [2024-11-19 01:09:23,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:09:23,812 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 142 [2024-11-19 01:09:23,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:23,815 INFO L225 Difference]: With dead ends: 606 [2024-11-19 01:09:23,815 INFO L226 Difference]: Without dead ends: 604 [2024-11-19 01:09:23,815 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-11-19 01:09:23,816 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 0 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:23,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 749 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:09:23,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2024-11-19 01:09:23,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 574. [2024-11-19 01:09:23,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 481 states have (on average 1.2349272349272349) internal successors, (594), 485 states have internal predecessors, (594), 82 states have call successors, (82), 10 states have call predecessors, (82), 10 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-19 01:09:23,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 758 transitions. [2024-11-19 01:09:23,842 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 758 transitions. Word has length 142 [2024-11-19 01:09:23,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:23,842 INFO L471 AbstractCegarLoop]: Abstraction has 574 states and 758 transitions. [2024-11-19 01:09:23,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:23,842 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 758 transitions. [2024-11-19 01:09:23,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2024-11-19 01:09:23,845 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:23,845 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:23,859 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-19 01:09:24,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-19 01:09:24,046 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:24,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:24,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1501360601, now seen corresponding path program 1 times [2024-11-19 01:09:24,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:24,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742897249] [2024-11-19 01:09:24,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:24,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:24,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:24,249 INFO L134 CoverageAnalysis]: Checked inductivity of 2575 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2564 trivial. 0 not checked. [2024-11-19 01:09:24,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:24,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742897249] [2024-11-19 01:09:24,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742897249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:24,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:24,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:09:24,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718685324] [2024-11-19 01:09:24,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:24,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:09:24,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:24,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:09:24,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:09:24,251 INFO L87 Difference]: Start difference. First operand 574 states and 758 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:24,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:24,372 INFO L93 Difference]: Finished difference Result 944 states and 1257 transitions. [2024-11-19 01:09:24,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:09:24,372 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 268 [2024-11-19 01:09:24,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:24,375 INFO L225 Difference]: With dead ends: 944 [2024-11-19 01:09:24,375 INFO L226 Difference]: Without dead ends: 696 [2024-11-19 01:09:24,376 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:09:24,376 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 36 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:24,376 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 406 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:09:24,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2024-11-19 01:09:24,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 589. [2024-11-19 01:09:24,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 496 states have (on average 1.2459677419354838) internal successors, (618), 500 states have internal predecessors, (618), 82 states have call successors, (82), 10 states have call predecessors, (82), 10 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-19 01:09:24,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 782 transitions. [2024-11-19 01:09:24,419 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 782 transitions. Word has length 268 [2024-11-19 01:09:24,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:24,419 INFO L471 AbstractCegarLoop]: Abstraction has 589 states and 782 transitions. [2024-11-19 01:09:24,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:24,419 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 782 transitions. [2024-11-19 01:09:24,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2024-11-19 01:09:24,421 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:24,422 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:24,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 01:09:24,422 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:24,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:24,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1923253533, now seen corresponding path program 1 times [2024-11-19 01:09:24,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:24,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620638577] [2024-11-19 01:09:24,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:24,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:24,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:24,627 INFO L134 CoverageAnalysis]: Checked inductivity of 2575 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2564 trivial. 0 not checked. [2024-11-19 01:09:24,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:24,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620638577] [2024-11-19 01:09:24,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620638577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:24,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:24,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:09:24,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618555788] [2024-11-19 01:09:24,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:24,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:09:24,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:24,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:09:24,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:09:24,630 INFO L87 Difference]: Start difference. First operand 589 states and 782 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:24,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:24,757 INFO L93 Difference]: Finished difference Result 956 states and 1281 transitions. [2024-11-19 01:09:24,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:09:24,758 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 268 [2024-11-19 01:09:24,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:24,760 INFO L225 Difference]: With dead ends: 956 [2024-11-19 01:09:24,760 INFO L226 Difference]: Without dead ends: 693 [2024-11-19 01:09:24,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:09:24,762 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 34 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:24,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 394 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:09:24,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2024-11-19 01:09:24,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 598. [2024-11-19 01:09:24,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 505 states have (on average 1.2475247524752475) internal successors, (630), 509 states have internal predecessors, (630), 82 states have call successors, (82), 10 states have call predecessors, (82), 10 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-19 01:09:24,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 794 transitions. [2024-11-19 01:09:24,785 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 794 transitions. Word has length 268 [2024-11-19 01:09:24,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:24,785 INFO L471 AbstractCegarLoop]: Abstraction has 598 states and 794 transitions. [2024-11-19 01:09:24,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:24,786 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 794 transitions. [2024-11-19 01:09:24,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2024-11-19 01:09:24,788 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:24,788 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:24,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 01:09:24,789 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:24,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:24,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1243195163, now seen corresponding path program 1 times [2024-11-19 01:09:24,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:24,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390940233] [2024-11-19 01:09:24,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:24,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:24,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:26,045 INFO L134 CoverageAnalysis]: Checked inductivity of 2575 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2565 trivial. 0 not checked. [2024-11-19 01:09:26,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:26,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390940233] [2024-11-19 01:09:26,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390940233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:26,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:26,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:09:26,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013451731] [2024-11-19 01:09:26,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:26,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:09:26,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:26,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:09:26,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:09:26,046 INFO L87 Difference]: Start difference. First operand 598 states and 794 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:26,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:26,236 INFO L93 Difference]: Finished difference Result 1286 states and 1710 transitions. [2024-11-19 01:09:26,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:09:26,236 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 268 [2024-11-19 01:09:26,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:26,239 INFO L225 Difference]: With dead ends: 1286 [2024-11-19 01:09:26,239 INFO L226 Difference]: Without dead ends: 801 [2024-11-19 01:09:26,240 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:09:26,240 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 36 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:26,240 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 513 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:09:26,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2024-11-19 01:09:26,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 598. [2024-11-19 01:09:26,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 505 states have (on average 1.2475247524752475) internal successors, (630), 509 states have internal predecessors, (630), 82 states have call successors, (82), 10 states have call predecessors, (82), 10 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-19 01:09:26,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 794 transitions. [2024-11-19 01:09:26,265 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 794 transitions. Word has length 268 [2024-11-19 01:09:26,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:26,266 INFO L471 AbstractCegarLoop]: Abstraction has 598 states and 794 transitions. [2024-11-19 01:09:26,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:26,266 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 794 transitions. [2024-11-19 01:09:26,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2024-11-19 01:09:26,268 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:26,268 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:26,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-19 01:09:26,269 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:26,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:26,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1978686753, now seen corresponding path program 1 times [2024-11-19 01:09:26,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:26,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777226506] [2024-11-19 01:09:26,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:26,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:26,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:26,505 INFO L134 CoverageAnalysis]: Checked inductivity of 2575 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2564 trivial. 0 not checked. [2024-11-19 01:09:26,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:26,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777226506] [2024-11-19 01:09:26,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777226506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:26,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:26,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:09:26,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593687493] [2024-11-19 01:09:26,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:26,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:09:26,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:26,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:09:26,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:09:26,508 INFO L87 Difference]: Start difference. First operand 598 states and 794 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:26,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:26,701 INFO L93 Difference]: Finished difference Result 965 states and 1287 transitions. [2024-11-19 01:09:26,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:09:26,702 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 268 [2024-11-19 01:09:26,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:26,704 INFO L225 Difference]: With dead ends: 965 [2024-11-19 01:09:26,704 INFO L226 Difference]: Without dead ends: 690 [2024-11-19 01:09:26,705 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:09:26,706 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 32 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:26,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 521 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:09:26,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2024-11-19 01:09:26,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 595. [2024-11-19 01:09:26,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 502 states have (on average 1.2430278884462151) internal successors, (624), 506 states have internal predecessors, (624), 82 states have call successors, (82), 10 states have call predecessors, (82), 10 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-19 01:09:26,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 788 transitions. [2024-11-19 01:09:26,729 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 788 transitions. Word has length 268 [2024-11-19 01:09:26,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:26,730 INFO L471 AbstractCegarLoop]: Abstraction has 595 states and 788 transitions. [2024-11-19 01:09:26,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:26,730 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 788 transitions. [2024-11-19 01:09:26,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2024-11-19 01:09:26,731 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:26,731 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:26,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-19 01:09:26,732 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:26,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:26,732 INFO L85 PathProgramCache]: Analyzing trace with hash -2088166615, now seen corresponding path program 1 times [2024-11-19 01:09:26,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:26,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168182576] [2024-11-19 01:09:26,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:26,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:26,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:27,114 INFO L134 CoverageAnalysis]: Checked inductivity of 2575 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 2563 trivial. 0 not checked. [2024-11-19 01:09:27,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:27,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168182576] [2024-11-19 01:09:27,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168182576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:27,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:27,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:09:27,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226110599] [2024-11-19 01:09:27,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:27,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:09:27,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:27,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:09:27,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:09:27,116 INFO L87 Difference]: Start difference. First operand 595 states and 788 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:27,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:27,260 INFO L93 Difference]: Finished difference Result 1067 states and 1414 transitions. [2024-11-19 01:09:27,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:09:27,261 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 268 [2024-11-19 01:09:27,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:27,264 INFO L225 Difference]: With dead ends: 1067 [2024-11-19 01:09:27,264 INFO L226 Difference]: Without dead ends: 798 [2024-11-19 01:09:27,265 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:09:27,265 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 35 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:27,266 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 394 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:09:27,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-11-19 01:09:27,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 583. [2024-11-19 01:09:27,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 490 states have (on average 1.236734693877551) internal successors, (606), 494 states have internal predecessors, (606), 82 states have call successors, (82), 10 states have call predecessors, (82), 10 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-19 01:09:27,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 770 transitions. [2024-11-19 01:09:27,286 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 770 transitions. Word has length 268 [2024-11-19 01:09:27,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:27,286 INFO L471 AbstractCegarLoop]: Abstraction has 583 states and 770 transitions. [2024-11-19 01:09:27,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:27,286 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 770 transitions. [2024-11-19 01:09:27,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-11-19 01:09:27,287 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:27,288 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:27,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-19 01:09:27,288 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:27,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:27,288 INFO L85 PathProgramCache]: Analyzing trace with hash 205050709, now seen corresponding path program 1 times [2024-11-19 01:09:27,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:27,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278896241] [2024-11-19 01:09:27,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:27,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:27,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:27,406 INFO L134 CoverageAnalysis]: Checked inductivity of 2577 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2566 trivial. 0 not checked. [2024-11-19 01:09:27,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:27,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278896241] [2024-11-19 01:09:27,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278896241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:27,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:27,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:09:27,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175834282] [2024-11-19 01:09:27,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:27,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:09:27,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:27,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:09:27,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:09:27,408 INFO L87 Difference]: Start difference. First operand 583 states and 770 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:27,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:27,464 INFO L93 Difference]: Finished difference Result 1253 states and 1650 transitions. [2024-11-19 01:09:27,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:09:27,465 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 270 [2024-11-19 01:09:27,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:27,468 INFO L225 Difference]: With dead ends: 1253 [2024-11-19 01:09:27,468 INFO L226 Difference]: Without dead ends: 783 [2024-11-19 01:09:27,469 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:09:27,470 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 44 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:27,470 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 370 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:09:27,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2024-11-19 01:09:27,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 583. [2024-11-19 01:09:27,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 490 states have (on average 1.2306122448979593) internal successors, (603), 494 states have internal predecessors, (603), 82 states have call successors, (82), 10 states have call predecessors, (82), 10 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-19 01:09:27,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 767 transitions. [2024-11-19 01:09:27,494 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 767 transitions. Word has length 270 [2024-11-19 01:09:27,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:27,494 INFO L471 AbstractCegarLoop]: Abstraction has 583 states and 767 transitions. [2024-11-19 01:09:27,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:27,494 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 767 transitions. [2024-11-19 01:09:27,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-11-19 01:09:27,496 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:27,496 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:27,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-19 01:09:27,496 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:27,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:27,496 INFO L85 PathProgramCache]: Analyzing trace with hash -216842223, now seen corresponding path program 1 times [2024-11-19 01:09:27,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:27,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11061914] [2024-11-19 01:09:27,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:27,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:27,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:27,610 INFO L134 CoverageAnalysis]: Checked inductivity of 2577 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2566 trivial. 0 not checked. [2024-11-19 01:09:27,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:27,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11061914] [2024-11-19 01:09:27,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11061914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:27,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:27,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:09:27,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993305677] [2024-11-19 01:09:27,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:27,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:09:27,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:27,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:09:27,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:09:27,612 INFO L87 Difference]: Start difference. First operand 583 states and 767 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:27,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:27,661 INFO L93 Difference]: Finished difference Result 1238 states and 1626 transitions. [2024-11-19 01:09:27,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:09:27,661 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 270 [2024-11-19 01:09:27,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:27,664 INFO L225 Difference]: With dead ends: 1238 [2024-11-19 01:09:27,664 INFO L226 Difference]: Without dead ends: 768 [2024-11-19 01:09:27,665 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:09:27,666 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 32 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:27,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 414 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:09:27,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2024-11-19 01:09:27,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 658. [2024-11-19 01:09:27,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 565 states have (on average 1.2194690265486725) internal successors, (689), 569 states have internal predecessors, (689), 82 states have call successors, (82), 10 states have call predecessors, (82), 10 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-19 01:09:27,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 853 transitions. [2024-11-19 01:09:27,688 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 853 transitions. Word has length 270 [2024-11-19 01:09:27,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:27,688 INFO L471 AbstractCegarLoop]: Abstraction has 658 states and 853 transitions. [2024-11-19 01:09:27,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:27,688 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 853 transitions. [2024-11-19 01:09:27,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-19 01:09:27,690 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:27,690 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:27,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-19 01:09:27,690 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:27,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:27,690 INFO L85 PathProgramCache]: Analyzing trace with hash 506409008, now seen corresponding path program 1 times [2024-11-19 01:09:27,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:27,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992489466] [2024-11-19 01:09:27,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:27,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:27,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 01:09:27,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1745368313] [2024-11-19 01:09:27,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:27,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:09:27,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:09:27,767 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) [2024-11-19 01:09:27,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 01:09:28,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:28,120 INFO L255 TraceCheckSpWp]: Trace formula consists of 741 conjuncts, 60 conjuncts are in the unsatisfiable core [2024-11-19 01:09:28,127 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:09:28,130 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 64 [2024-11-19 01:09:28,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 113 [2024-11-19 01:09:28,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 113 [2024-11-19 01:09:29,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 113 [2024-11-19 01:09:29,672 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 117 [2024-11-19 01:09:30,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 117 [2024-11-19 01:09:30,625 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 117 [2024-11-19 01:09:30,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 117 [2024-11-19 01:09:31,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 117 [2024-11-19 01:09:31,779 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 117 [2024-11-19 01:09:32,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 121 [2024-11-19 01:09:32,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 144 treesize of output 117 [2024-11-19 01:09:33,310 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 112 [2024-11-19 01:09:33,383 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:09:33,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:09:33,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:09:33,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:09:33,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:09:33,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:09:33,469 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:09:33,483 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:09:33,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 87 [2024-11-19 01:09:33,510 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:09:33,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 43 [2024-11-19 01:09:33,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2024-11-19 01:09:33,948 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:09:33,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 142 treesize of output 96 [2024-11-19 01:09:34,045 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:09:34,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 138 treesize of output 96 [2024-11-19 01:09:34,192 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:09:34,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 141 treesize of output 57 [2024-11-19 01:09:34,354 INFO L134 CoverageAnalysis]: Checked inductivity of 2577 backedges. 6 proven. 1667 refuted. 0 times theorem prover too weak. 904 trivial. 0 not checked. [2024-11-19 01:09:34,355 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 01:09:34,855 INFO L134 CoverageAnalysis]: Checked inductivity of 2577 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2024-11-19 01:09:34,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:34,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992489466] [2024-11-19 01:09:34,855 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 01:09:34,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1745368313] [2024-11-19 01:09:34,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1745368313] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-19 01:09:34,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 01:09:34,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-19 01:09:34,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244879037] [2024-11-19 01:09:34,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:34,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:09:34,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:34,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:09:34,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-19 01:09:34,857 INFO L87 Difference]: Start difference. First operand 658 states and 853 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:35,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:35,850 INFO L93 Difference]: Finished difference Result 1189 states and 1548 transitions. [2024-11-19 01:09:35,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:09:35,850 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 271 [2024-11-19 01:09:35,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:35,853 INFO L225 Difference]: With dead ends: 1189 [2024-11-19 01:09:35,853 INFO L226 Difference]: Without dead ends: 644 [2024-11-19 01:09:35,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 541 GetRequests, 520 SyntacticMatches, 9 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-11-19 01:09:35,854 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 30 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:35,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 394 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 01:09:35,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2024-11-19 01:09:35,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 642. [2024-11-19 01:09:35,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 549 states have (on average 1.204007285974499) internal successors, (661), 553 states have internal predecessors, (661), 82 states have call successors, (82), 10 states have call predecessors, (82), 10 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-19 01:09:35,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 825 transitions. [2024-11-19 01:09:35,875 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 825 transitions. Word has length 271 [2024-11-19 01:09:35,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:35,876 INFO L471 AbstractCegarLoop]: Abstraction has 642 states and 825 transitions. [2024-11-19 01:09:35,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:35,876 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 825 transitions. [2024-11-19 01:09:35,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-19 01:09:35,877 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:35,877 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:35,894 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-19 01:09:36,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-19 01:09:36,082 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:36,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:36,083 INFO L85 PathProgramCache]: Analyzing trace with hash -516185321, now seen corresponding path program 1 times [2024-11-19 01:09:36,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:36,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952277707] [2024-11-19 01:09:36,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:36,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:36,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:36,318 INFO L134 CoverageAnalysis]: Checked inductivity of 2577 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 2565 trivial. 0 not checked. [2024-11-19 01:09:36,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:36,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952277707] [2024-11-19 01:09:36,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952277707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:36,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:36,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:09:36,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009373682] [2024-11-19 01:09:36,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:36,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:09:36,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:36,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:09:36,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:09:36,321 INFO L87 Difference]: Start difference. First operand 642 states and 825 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:36,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:36,498 INFO L93 Difference]: Finished difference Result 1049 states and 1349 transitions. [2024-11-19 01:09:36,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:09:36,499 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 271 [2024-11-19 01:09:36,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:36,502 INFO L225 Difference]: With dead ends: 1049 [2024-11-19 01:09:36,502 INFO L226 Difference]: Without dead ends: 751 [2024-11-19 01:09:36,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:09:36,503 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 43 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:36,503 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 545 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:09:36,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2024-11-19 01:09:36,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 623. [2024-11-19 01:09:36,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 623 states, 530 states have (on average 1.1905660377358491) internal successors, (631), 534 states have internal predecessors, (631), 82 states have call successors, (82), 10 states have call predecessors, (82), 10 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-19 01:09:36,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 795 transitions. [2024-11-19 01:09:36,526 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 795 transitions. Word has length 271 [2024-11-19 01:09:36,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:36,527 INFO L471 AbstractCegarLoop]: Abstraction has 623 states and 795 transitions. [2024-11-19 01:09:36,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:36,527 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 795 transitions. [2024-11-19 01:09:36,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-19 01:09:36,528 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:36,528 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:36,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-19 01:09:36,528 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:36,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:36,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1131857257, now seen corresponding path program 1 times [2024-11-19 01:09:36,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:36,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040246755] [2024-11-19 01:09:36,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:36,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:36,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:36,751 INFO L134 CoverageAnalysis]: Checked inductivity of 2577 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2566 trivial. 0 not checked. [2024-11-19 01:09:36,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:36,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040246755] [2024-11-19 01:09:36,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040246755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:36,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:36,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:09:36,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317895511] [2024-11-19 01:09:36,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:36,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:09:36,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:36,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:09:36,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:09:36,753 INFO L87 Difference]: Start difference. First operand 623 states and 795 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:36,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:36,900 INFO L93 Difference]: Finished difference Result 1002 states and 1280 transitions. [2024-11-19 01:09:36,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:09:36,901 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 271 [2024-11-19 01:09:36,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:36,904 INFO L225 Difference]: With dead ends: 1002 [2024-11-19 01:09:36,904 INFO L226 Difference]: Without dead ends: 723 [2024-11-19 01:09:36,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:09:36,905 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 30 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:36,905 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 585 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:09:36,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2024-11-19 01:09:36,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 610. [2024-11-19 01:09:36,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 517 states have (on average 1.1798839458413926) internal successors, (610), 521 states have internal predecessors, (610), 82 states have call successors, (82), 10 states have call predecessors, (82), 10 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-19 01:09:36,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 774 transitions. [2024-11-19 01:09:36,937 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 774 transitions. Word has length 271 [2024-11-19 01:09:36,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:36,937 INFO L471 AbstractCegarLoop]: Abstraction has 610 states and 774 transitions. [2024-11-19 01:09:36,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:36,937 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 774 transitions. [2024-11-19 01:09:36,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-11-19 01:09:36,939 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:36,939 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:36,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-19 01:09:36,939 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:36,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:36,940 INFO L85 PathProgramCache]: Analyzing trace with hash -543688302, now seen corresponding path program 1 times [2024-11-19 01:09:36,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:36,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912723257] [2024-11-19 01:09:36,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:36,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:37,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:38,332 INFO L134 CoverageAnalysis]: Checked inductivity of 2579 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 2559 trivial. 0 not checked. [2024-11-19 01:09:38,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:38,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912723257] [2024-11-19 01:09:38,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912723257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:38,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:38,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 01:09:38,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878610928] [2024-11-19 01:09:38,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:38,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 01:09:38,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:38,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 01:09:38,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-19 01:09:38,333 INFO L87 Difference]: Start difference. First operand 610 states and 774 transitions. Second operand has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 10 states have internal predecessors, (75), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 01:09:38,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:38,949 INFO L93 Difference]: Finished difference Result 951 states and 1196 transitions. [2024-11-19 01:09:38,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 01:09:38,950 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 10 states have internal predecessors, (75), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 272 [2024-11-19 01:09:38,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:38,953 INFO L225 Difference]: With dead ends: 951 [2024-11-19 01:09:38,953 INFO L226 Difference]: Without dead ends: 949 [2024-11-19 01:09:38,954 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-11-19 01:09:38,954 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 159 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:38,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 818 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 01:09:38,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2024-11-19 01:09:38,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 813. [2024-11-19 01:09:38,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 813 states, 691 states have (on average 1.1780028943560057) internal successors, (814), 698 states have internal predecessors, (814), 106 states have call successors, (106), 15 states have call predecessors, (106), 15 states have return successors, (106), 99 states have call predecessors, (106), 106 states have call successors, (106) [2024-11-19 01:09:38,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 1026 transitions. [2024-11-19 01:09:39,000 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 1026 transitions. Word has length 272 [2024-11-19 01:09:39,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:39,001 INFO L471 AbstractCegarLoop]: Abstraction has 813 states and 1026 transitions. [2024-11-19 01:09:39,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 10 states have internal predecessors, (75), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 01:09:39,001 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 1026 transitions. [2024-11-19 01:09:39,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-11-19 01:09:39,002 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:39,003 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:39,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-19 01:09:39,003 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:39,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:39,007 INFO L85 PathProgramCache]: Analyzing trace with hash -345400068, now seen corresponding path program 1 times [2024-11-19 01:09:39,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:39,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363630015] [2024-11-19 01:09:39,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:39,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:39,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 01:09:39,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [226944927] [2024-11-19 01:09:39,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:39,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:09:39,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:09:39,158 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) [2024-11-19 01:09:39,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 01:09:39,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:39,546 INFO L255 TraceCheckSpWp]: Trace formula consists of 747 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-11-19 01:09:39,558 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:09:39,561 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 64 [2024-11-19 01:09:39,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 113 [2024-11-19 01:09:40,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 113 [2024-11-19 01:09:40,446 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 113 [2024-11-19 01:09:40,848 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 117 [2024-11-19 01:09:41,249 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 117 [2024-11-19 01:09:41,660 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 117 [2024-11-19 01:09:42,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 117 [2024-11-19 01:09:42,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 117 [2024-11-19 01:09:42,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 117 [2024-11-19 01:09:43,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 121 [2024-11-19 01:09:43,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 144 treesize of output 117 [2024-11-19 01:09:44,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 157 treesize of output 128 [2024-11-19 01:09:44,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 157 treesize of output 128 [2024-11-19 01:09:45,238 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 157 treesize of output 128 [2024-11-19 01:09:45,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 157 treesize of output 128 [2024-11-19 01:09:46,290 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 157 treesize of output 128 [2024-11-19 01:09:46,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 157 treesize of output 128 [2024-11-19 01:09:47,282 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 157 treesize of output 128 [2024-11-19 01:09:47,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 157 treesize of output 128 [2024-11-19 01:09:48,236 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 157 treesize of output 128 [2024-11-19 01:09:48,777 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 253 treesize of output 199 [2024-11-19 01:09:50,844 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 844 treesize of output 689 [2024-11-19 01:09:53,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 903 treesize of output 736 [2024-11-19 01:09:56,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 906 treesize of output 738 [2024-11-19 01:09:57,138 INFO L134 CoverageAnalysis]: Checked inductivity of 2577 backedges. 156 proven. 1517 refuted. 0 times theorem prover too weak. 904 trivial. 0 not checked. [2024-11-19 01:09:57,138 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 01:09:57,782 INFO L134 CoverageAnalysis]: Checked inductivity of 2577 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2024-11-19 01:09:57,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:57,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363630015] [2024-11-19 01:09:57,783 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 01:09:57,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226944927] [2024-11-19 01:09:57,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [226944927] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-19 01:09:57,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 01:09:57,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-19 01:09:57,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253458239] [2024-11-19 01:09:57,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:57,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:09:57,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:57,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:09:57,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-19 01:09:57,784 INFO L87 Difference]: Start difference. First operand 813 states and 1026 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:58,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:09:58,505 INFO L93 Difference]: Finished difference Result 1481 states and 1869 transitions. [2024-11-19 01:09:58,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:09:58,506 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 272 [2024-11-19 01:09:58,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:09:58,516 INFO L225 Difference]: With dead ends: 1481 [2024-11-19 01:09:58,516 INFO L226 Difference]: Without dead ends: 785 [2024-11-19 01:09:58,523 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 543 GetRequests, 512 SyntacticMatches, 19 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-19 01:09:58,524 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 27 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 01:09:58,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 306 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 01:09:58,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2024-11-19 01:09:58,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 783. [2024-11-19 01:09:58,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 783 states, 661 states have (on average 1.1588502269288956) internal successors, (766), 668 states have internal predecessors, (766), 106 states have call successors, (106), 15 states have call predecessors, (106), 15 states have return successors, (106), 99 states have call predecessors, (106), 106 states have call successors, (106) [2024-11-19 01:09:58,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 978 transitions. [2024-11-19 01:09:58,634 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 978 transitions. Word has length 272 [2024-11-19 01:09:58,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:09:58,634 INFO L471 AbstractCegarLoop]: Abstraction has 783 states and 978 transitions. [2024-11-19 01:09:58,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:09:58,634 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 978 transitions. [2024-11-19 01:09:58,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-11-19 01:09:58,636 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:09:58,637 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:09:58,670 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-19 01:09:58,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:09:58,837 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:09:58,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:09:58,839 INFO L85 PathProgramCache]: Analyzing trace with hash -2132036204, now seen corresponding path program 1 times [2024-11-19 01:09:58,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:09:58,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848150346] [2024-11-19 01:09:58,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:09:58,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:09:58,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:09:59,672 INFO L134 CoverageAnalysis]: Checked inductivity of 2579 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2563 trivial. 0 not checked. [2024-11-19 01:09:59,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:09:59,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848150346] [2024-11-19 01:09:59,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848150346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:09:59,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:09:59,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:09:59,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929746112] [2024-11-19 01:09:59,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:09:59,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:09:59,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:09:59,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:09:59,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:09:59,673 INFO L87 Difference]: Start difference. First operand 783 states and 978 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:10:00,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:00,088 INFO L93 Difference]: Finished difference Result 1532 states and 1931 transitions. [2024-11-19 01:10:00,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:10:00,088 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 272 [2024-11-19 01:10:00,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:00,093 INFO L225 Difference]: With dead ends: 1532 [2024-11-19 01:10:00,093 INFO L226 Difference]: Without dead ends: 1087 [2024-11-19 01:10:00,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:10:00,095 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 92 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:00,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 190 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 01:10:00,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1087 states. [2024-11-19 01:10:00,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1087 to 864. [2024-11-19 01:10:00,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 714 states have (on average 1.1512605042016806) internal successors, (822), 724 states have internal predecessors, (822), 130 states have call successors, (130), 19 states have call predecessors, (130), 19 states have return successors, (130), 120 states have call predecessors, (130), 130 states have call successors, (130) [2024-11-19 01:10:00,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1082 transitions. [2024-11-19 01:10:00,141 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1082 transitions. Word has length 272 [2024-11-19 01:10:00,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:00,141 INFO L471 AbstractCegarLoop]: Abstraction has 864 states and 1082 transitions. [2024-11-19 01:10:00,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:10:00,142 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1082 transitions. [2024-11-19 01:10:00,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-11-19 01:10:00,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:00,143 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:00,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-19 01:10:00,144 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:00,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:00,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1151813842, now seen corresponding path program 1 times [2024-11-19 01:10:00,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:00,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987924376] [2024-11-19 01:10:00,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:00,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:00,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:02,068 INFO L134 CoverageAnalysis]: Checked inductivity of 2579 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 2558 trivial. 0 not checked. [2024-11-19 01:10:02,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:02,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987924376] [2024-11-19 01:10:02,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987924376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:02,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:02,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-19 01:10:02,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359542710] [2024-11-19 01:10:02,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:02,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 01:10:02,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:02,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 01:10:02,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-19 01:10:02,070 INFO L87 Difference]: Start difference. First operand 864 states and 1082 transitions. Second operand has 11 states, 9 states have (on average 8.444444444444445) internal successors, (76), 11 states have internal predecessors, (76), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-19 01:10:02,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:02,961 INFO L93 Difference]: Finished difference Result 884 states and 1102 transitions. [2024-11-19 01:10:02,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 01:10:02,962 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 8.444444444444445) internal successors, (76), 11 states have internal predecessors, (76), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 272 [2024-11-19 01:10:02,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:02,965 INFO L225 Difference]: With dead ends: 884 [2024-11-19 01:10:02,965 INFO L226 Difference]: Without dead ends: 882 [2024-11-19 01:10:02,966 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2024-11-19 01:10:02,966 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 118 mSDsluCounter, 1092 mSDsCounter, 0 mSdLazyCounter, 905 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 1277 SdHoareTripleChecker+Invalid, 919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:02,966 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 1277 Invalid, 919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 905 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 01:10:02,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2024-11-19 01:10:03,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 864. [2024-11-19 01:10:03,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 714 states have (on average 1.1512605042016806) internal successors, (822), 724 states have internal predecessors, (822), 130 states have call successors, (130), 19 states have call predecessors, (130), 19 states have return successors, (130), 120 states have call predecessors, (130), 130 states have call successors, (130) [2024-11-19 01:10:03,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1082 transitions. [2024-11-19 01:10:03,014 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1082 transitions. Word has length 272 [2024-11-19 01:10:03,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:03,015 INFO L471 AbstractCegarLoop]: Abstraction has 864 states and 1082 transitions. [2024-11-19 01:10:03,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 8.444444444444445) internal successors, (76), 11 states have internal predecessors, (76), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-19 01:10:03,015 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1082 transitions. [2024-11-19 01:10:03,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2024-11-19 01:10:03,016 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:03,016 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:03,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-19 01:10:03,017 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:03,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:03,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1030453184, now seen corresponding path program 1 times [2024-11-19 01:10:03,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:03,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450025203] [2024-11-19 01:10:03,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:03,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:03,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:03,088 INFO L134 CoverageAnalysis]: Checked inductivity of 2581 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 2560 trivial. 0 not checked. [2024-11-19 01:10:03,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:03,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450025203] [2024-11-19 01:10:03,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450025203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:03,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:03,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 01:10:03,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764208533] [2024-11-19 01:10:03,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:03,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:10:03,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:03,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:10:03,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:10:03,090 INFO L87 Difference]: Start difference. First operand 864 states and 1082 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:10:03,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:03,172 INFO L93 Difference]: Finished difference Result 1647 states and 2058 transitions. [2024-11-19 01:10:03,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:10:03,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 274 [2024-11-19 01:10:03,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:03,177 INFO L225 Difference]: With dead ends: 1647 [2024-11-19 01:10:03,177 INFO L226 Difference]: Without dead ends: 900 [2024-11-19 01:10:03,178 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 [2024-11-19 01:10:03,178 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 33 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:03,178 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 177 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:10:03,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2024-11-19 01:10:03,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 839. [2024-11-19 01:10:03,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 839 states, 689 states have (on average 1.1480406386066764) internal successors, (791), 699 states have internal predecessors, (791), 130 states have call successors, (130), 19 states have call predecessors, (130), 19 states have return successors, (130), 120 states have call predecessors, (130), 130 states have call successors, (130) [2024-11-19 01:10:03,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 1051 transitions. [2024-11-19 01:10:03,229 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 1051 transitions. Word has length 274 [2024-11-19 01:10:03,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:03,230 INFO L471 AbstractCegarLoop]: Abstraction has 839 states and 1051 transitions. [2024-11-19 01:10:03,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:10:03,230 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 1051 transitions. [2024-11-19 01:10:03,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2024-11-19 01:10:03,232 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:03,232 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:03,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-19 01:10:03,232 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:03,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:03,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1305723893, now seen corresponding path program 1 times [2024-11-19 01:10:03,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:03,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471907206] [2024-11-19 01:10:03,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:03,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:03,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:03,317 INFO L134 CoverageAnalysis]: Checked inductivity of 2582 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2560 trivial. 0 not checked. [2024-11-19 01:10:03,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:03,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471907206] [2024-11-19 01:10:03,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471907206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:03,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:03,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 01:10:03,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508172989] [2024-11-19 01:10:03,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:03,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:10:03,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:03,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:10:03,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:10:03,320 INFO L87 Difference]: Start difference. First operand 839 states and 1051 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:10:03,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:03,421 INFO L93 Difference]: Finished difference Result 1489 states and 1864 transitions. [2024-11-19 01:10:03,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:10:03,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 277 [2024-11-19 01:10:03,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:03,425 INFO L225 Difference]: With dead ends: 1489 [2024-11-19 01:10:03,425 INFO L226 Difference]: Without dead ends: 767 [2024-11-19 01:10:03,427 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 [2024-11-19 01:10:03,427 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 17 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:03,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 218 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:10:03,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2024-11-19 01:10:03,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 767. [2024-11-19 01:10:03,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 767 states, 617 states have (on average 1.1166936790923825) internal successors, (689), 627 states have internal predecessors, (689), 130 states have call successors, (130), 19 states have call predecessors, (130), 19 states have return successors, (130), 120 states have call predecessors, (130), 130 states have call successors, (130) [2024-11-19 01:10:03,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 949 transitions. [2024-11-19 01:10:03,474 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 949 transitions. Word has length 277 [2024-11-19 01:10:03,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:03,474 INFO L471 AbstractCegarLoop]: Abstraction has 767 states and 949 transitions. [2024-11-19 01:10:03,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:10:03,474 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 949 transitions. [2024-11-19 01:10:03,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2024-11-19 01:10:03,476 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:03,476 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:03,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-19 01:10:03,477 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:03,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:03,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1364617885, now seen corresponding path program 1 times [2024-11-19 01:10:03,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:03,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480625149] [2024-11-19 01:10:03,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:03,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:03,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:04,053 INFO L134 CoverageAnalysis]: Checked inductivity of 2584 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 2559 trivial. 0 not checked. [2024-11-19 01:10:04,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:04,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480625149] [2024-11-19 01:10:04,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480625149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:04,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:04,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:10:04,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265884801] [2024-11-19 01:10:04,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:04,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:10:04,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:04,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:10:04,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:10:04,055 INFO L87 Difference]: Start difference. First operand 767 states and 949 transitions. Second operand has 6 states, 5 states have (on average 16.4) internal successors, (82), 6 states have internal predecessors, (82), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 01:10:04,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:04,316 INFO L93 Difference]: Finished difference Result 1845 states and 2283 transitions. [2024-11-19 01:10:04,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:10:04,317 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.4) internal successors, (82), 6 states have internal predecessors, (82), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 279 [2024-11-19 01:10:04,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:04,321 INFO L225 Difference]: With dead ends: 1845 [2024-11-19 01:10:04,321 INFO L226 Difference]: Without dead ends: 1189 [2024-11-19 01:10:04,322 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:10:04,323 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 105 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:04,323 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 246 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:10:04,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1189 states. [2024-11-19 01:10:04,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1189 to 1185. [2024-11-19 01:10:04,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1185 states, 970 states have (on average 1.1195876288659794) internal successors, (1086), 986 states have internal predecessors, (1086), 186 states have call successors, (186), 28 states have call predecessors, (186), 28 states have return successors, (186), 170 states have call predecessors, (186), 186 states have call successors, (186) [2024-11-19 01:10:04,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 1458 transitions. [2024-11-19 01:10:04,390 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 1458 transitions. Word has length 279 [2024-11-19 01:10:04,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:04,391 INFO L471 AbstractCegarLoop]: Abstraction has 1185 states and 1458 transitions. [2024-11-19 01:10:04,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.4) internal successors, (82), 6 states have internal predecessors, (82), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 01:10:04,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 1458 transitions. [2024-11-19 01:10:04,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2024-11-19 01:10:04,393 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:04,393 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:04,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-19 01:10:04,393 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:04,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:04,393 INFO L85 PathProgramCache]: Analyzing trace with hash 971590875, now seen corresponding path program 1 times [2024-11-19 01:10:04,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:04,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043730032] [2024-11-19 01:10:04,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:04,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:04,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:04,899 INFO L134 CoverageAnalysis]: Checked inductivity of 2584 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 2560 trivial. 0 not checked. [2024-11-19 01:10:04,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:04,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043730032] [2024-11-19 01:10:04,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043730032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:04,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:04,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:10:04,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116248980] [2024-11-19 01:10:04,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:04,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:10:04,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:04,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:10:04,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:10:04,901 INFO L87 Difference]: Start difference. First operand 1185 states and 1458 transitions. Second operand has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 01:10:05,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:05,225 INFO L93 Difference]: Finished difference Result 2578 states and 3174 transitions. [2024-11-19 01:10:05,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:10:05,225 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 279 [2024-11-19 01:10:05,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:05,233 INFO L225 Difference]: With dead ends: 2578 [2024-11-19 01:10:05,233 INFO L226 Difference]: Without dead ends: 1567 [2024-11-19 01:10:05,237 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:10:05,237 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 92 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:05,238 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 236 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:10:05,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1567 states. [2024-11-19 01:10:05,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1567 to 1525. [2024-11-19 01:10:05,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1525 states, 1239 states have (on average 1.1105730427764327) internal successors, (1376), 1261 states have internal predecessors, (1376), 246 states have call successors, (246), 39 states have call predecessors, (246), 39 states have return successors, (246), 224 states have call predecessors, (246), 246 states have call successors, (246) [2024-11-19 01:10:05,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 1868 transitions. [2024-11-19 01:10:05,315 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 1868 transitions. Word has length 279 [2024-11-19 01:10:05,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:05,316 INFO L471 AbstractCegarLoop]: Abstraction has 1525 states and 1868 transitions. [2024-11-19 01:10:05,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 01:10:05,316 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 1868 transitions. [2024-11-19 01:10:05,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2024-11-19 01:10:05,318 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:05,319 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:05,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-19 01:10:05,319 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:05,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:05,320 INFO L85 PathProgramCache]: Analyzing trace with hash -446729831, now seen corresponding path program 1 times [2024-11-19 01:10:05,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:05,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531453809] [2024-11-19 01:10:05,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:05,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:05,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:05,731 INFO L134 CoverageAnalysis]: Checked inductivity of 2584 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2562 trivial. 0 not checked. [2024-11-19 01:10:05,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:05,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531453809] [2024-11-19 01:10:05,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531453809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:05,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:05,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 01:10:05,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597786386] [2024-11-19 01:10:05,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:05,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 01:10:05,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:05,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 01:10:05,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:10:05,733 INFO L87 Difference]: Start difference. First operand 1525 states and 1868 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:10:06,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:06,014 INFO L93 Difference]: Finished difference Result 1939 states and 2357 transitions. [2024-11-19 01:10:06,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 01:10:06,015 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 280 [2024-11-19 01:10:06,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:06,023 INFO L225 Difference]: With dead ends: 1939 [2024-11-19 01:10:06,023 INFO L226 Difference]: Without dead ends: 1937 [2024-11-19 01:10:06,024 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-19 01:10:06,025 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 19 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:06,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 862 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:10:06,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1937 states. [2024-11-19 01:10:06,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1937 to 1769. [2024-11-19 01:10:06,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1769 states, 1483 states have (on average 1.1355360755225894) internal successors, (1684), 1505 states have internal predecessors, (1684), 246 states have call successors, (246), 39 states have call predecessors, (246), 39 states have return successors, (246), 224 states have call predecessors, (246), 246 states have call successors, (246) [2024-11-19 01:10:06,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1769 states to 1769 states and 2176 transitions. [2024-11-19 01:10:06,104 INFO L78 Accepts]: Start accepts. Automaton has 1769 states and 2176 transitions. Word has length 280 [2024-11-19 01:10:06,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:06,104 INFO L471 AbstractCegarLoop]: Abstraction has 1769 states and 2176 transitions. [2024-11-19 01:10:06,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:10:06,105 INFO L276 IsEmpty]: Start isEmpty. Operand 1769 states and 2176 transitions. [2024-11-19 01:10:06,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2024-11-19 01:10:06,107 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:06,107 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:06,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-19 01:10:06,107 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:06,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:06,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1854779241, now seen corresponding path program 1 times [2024-11-19 01:10:06,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:06,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042181201] [2024-11-19 01:10:06,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:06,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:06,174 INFO L134 CoverageAnalysis]: Checked inductivity of 2584 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2562 trivial. 0 not checked. [2024-11-19 01:10:06,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:06,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042181201] [2024-11-19 01:10:06,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042181201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:06,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:06,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 01:10:06,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861410456] [2024-11-19 01:10:06,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:06,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:10:06,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:06,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:10:06,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:10:06,178 INFO L87 Difference]: Start difference. First operand 1769 states and 2176 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:10:06,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:06,275 INFO L93 Difference]: Finished difference Result 3367 states and 4140 transitions. [2024-11-19 01:10:06,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:10:06,275 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 280 [2024-11-19 01:10:06,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:06,277 INFO L225 Difference]: With dead ends: 3367 [2024-11-19 01:10:06,277 INFO L226 Difference]: Without dead ends: 0 [2024-11-19 01:10:06,282 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 [2024-11-19 01:10:06,282 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 23 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:06,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 226 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:10:06,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-19 01:10:06,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-19 01:10:06,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:10:06,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-19 01:10:06,284 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 280 [2024-11-19 01:10:06,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:06,284 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 01:10:06,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 01:10:06,284 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-19 01:10:06,284 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-19 01:10:06,286 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-19 01:10:06,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-19 01:10:06,289 INFO L407 BasicCegarLoop]: Path program 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] [2024-11-19 01:10:06,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.