./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-37.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-37.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 5a6bb657185a8971ac59b78fdd6847366fd3bff8285db535888533d16204ace0 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 12:01:12,603 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 12:01:12,685 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 12:01:12,689 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 12:01:12,691 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 12:01:12,722 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 12:01:12,723 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 12:01:12,723 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 12:01:12,724 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 12:01:12,725 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 12:01:12,725 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 12:01:12,726 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 12:01:12,726 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 12:01:12,727 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 12:01:12,729 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 12:01:12,729 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 12:01:12,730 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 12:01:12,730 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 12:01:12,730 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 12:01:12,731 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 12:01:12,731 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 12:01:12,735 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 12:01:12,736 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 12:01:12,736 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 12:01:12,736 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 12:01:12,736 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 12:01:12,736 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 12:01:12,737 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 12:01:12,737 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 12:01:12,737 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 12:01:12,737 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 12:01:12,738 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 12:01:12,738 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:01:12,738 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 12:01:12,738 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 12:01:12,739 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 12:01:12,739 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 12:01:12,741 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 12:01:12,741 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 12:01:12,741 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 12:01:12,742 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 12:01:12,742 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 12:01:12,743 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a6bb657185a8971ac59b78fdd6847366fd3bff8285db535888533d16204ace0 [2024-11-22 12:01:13,004 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 12:01:13,023 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 12:01:13,028 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 12:01:13,029 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 12:01:13,029 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 12:01:13,031 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-37.i [2024-11-22 12:01:14,518 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 12:01:14,774 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 12:01:14,775 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-37.i [2024-11-22 12:01:14,806 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7890c1d6b/7d33d7c055784519aaff080f9f80b552/FLAG8d50a5975 [2024-11-22 12:01:14,823 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7890c1d6b/7d33d7c055784519aaff080f9f80b552 [2024-11-22 12:01:14,825 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 12:01:14,827 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 12:01:14,828 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 12:01:14,828 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 12:01:14,834 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 12:01:14,834 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:01:14" (1/1) ... [2024-11-22 12:01:14,835 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@134bc621 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:01:14, skipping insertion in model container [2024-11-22 12:01:14,835 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:01:14" (1/1) ... [2024-11-22 12:01:14,894 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 12:01:15,077 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-37.i[916,929] [2024-11-22 12:01:15,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:01:15,341 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 12:01:15,352 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-37.i[916,929] [2024-11-22 12:01:15,492 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:01:15,523 INFO L204 MainTranslator]: Completed translation [2024-11-22 12:01:15,523 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:01:15 WrapperNode [2024-11-22 12:01:15,524 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 12:01:15,525 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 12:01:15,525 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 12:01:15,525 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 12:01:15,532 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:01:15" (1/1) ... [2024-11-22 12:01:15,573 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:01:15" (1/1) ... [2024-11-22 12:01:15,684 INFO L138 Inliner]: procedures = 26, calls = 92, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 737 [2024-11-22 12:01:15,685 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 12:01:15,686 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 12:01:15,686 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 12:01:15,687 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 12:01:15,697 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:01:15" (1/1) ... [2024-11-22 12:01:15,698 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:01:15" (1/1) ... [2024-11-22 12:01:15,722 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:01:15" (1/1) ... [2024-11-22 12:01:15,772 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-22 12:01:15,773 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:01:15" (1/1) ... [2024-11-22 12:01:15,773 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:01:15" (1/1) ... [2024-11-22 12:01:15,801 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:01:15" (1/1) ... [2024-11-22 12:01:15,807 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:01:15" (1/1) ... [2024-11-22 12:01:15,822 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:01:15" (1/1) ... [2024-11-22 12:01:15,842 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:01:15" (1/1) ... [2024-11-22 12:01:15,857 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 12:01:15,859 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 12:01:15,859 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 12:01:15,859 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 12:01:15,860 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:01:15" (1/1) ... [2024-11-22 12:01:15,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:01:15,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:01:15,892 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 12:01:15,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 12:01:15,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 12:01:15,945 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 12:01:15,945 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 12:01:15,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 12:01:15,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 12:01:15,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 12:01:16,065 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 12:01:16,067 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 12:01:17,254 INFO L? ?]: Removed 90 outVars from TransFormulas that were not future-live. [2024-11-22 12:01:17,254 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 12:01:17,276 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 12:01:17,278 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 12:01:17,279 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:01:17 BoogieIcfgContainer [2024-11-22 12:01:17,279 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 12:01:17,281 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 12:01:17,281 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 12:01:17,285 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 12:01:17,285 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:01:14" (1/3) ... [2024-11-22 12:01:17,286 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a26ec7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:01:17, skipping insertion in model container [2024-11-22 12:01:17,286 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:01:15" (2/3) ... [2024-11-22 12:01:17,287 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a26ec7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:01:17, skipping insertion in model container [2024-11-22 12:01:17,287 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:01:17" (3/3) ... [2024-11-22 12:01:17,289 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-37.i [2024-11-22 12:01:17,305 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 12:01:17,305 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 12:01:17,389 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 12:01:17,397 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;@694b307, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 12:01:17,398 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 12:01:17,404 INFO L276 IsEmpty]: Start isEmpty. Operand has 308 states, 226 states have (on average 1.5221238938053097) internal successors, (344), 227 states have internal predecessors, (344), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-22 12:01:17,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2024-11-22 12:01:17,460 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:01:17,461 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:01:17,462 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:01:17,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:01:17,468 INFO L85 PathProgramCache]: Analyzing trace with hash -433744812, now seen corresponding path program 1 times [2024-11-22 12:01:17,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:01:17,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189894121] [2024-11-22 12:01:17,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:01:17,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:01:17,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:01:18,174 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 12168 trivial. 0 not checked. [2024-11-22 12:01:18,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:01:18,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189894121] [2024-11-22 12:01:18,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189894121] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:01:18,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025698411] [2024-11-22 12:01:18,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:01:18,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:01:18,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:01:18,180 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:01:18,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 12:01:18,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:01:18,570 INFO L255 TraceCheckSpWp]: Trace formula consists of 1237 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 12:01:18,586 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:01:18,657 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 12168 trivial. 0 not checked. [2024-11-22 12:01:18,657 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:01:18,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025698411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:01:18,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:01:18,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 12:01:18,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947503046] [2024-11-22 12:01:18,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:01:18,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 12:01:18,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:01:18,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 12:01:18,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 12:01:18,692 INFO L87 Difference]: Start difference. First operand has 308 states, 226 states have (on average 1.5221238938053097) internal successors, (344), 227 states have internal predecessors, (344), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) Second operand has 2 states, 2 states have (on average 69.0) internal successors, (138), 2 states have internal predecessors, (138), 2 states have call successors, (79), 2 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 2 states have call successors, (79) [2024-11-22 12:01:18,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:01:18,760 INFO L93 Difference]: Finished difference Result 609 states and 1077 transitions. [2024-11-22 12:01:18,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 12:01:18,764 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 69.0) internal successors, (138), 2 states have internal predecessors, (138), 2 states have call successors, (79), 2 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 2 states have call successors, (79) Word has length 528 [2024-11-22 12:01:18,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:01:18,779 INFO L225 Difference]: With dead ends: 609 [2024-11-22 12:01:18,780 INFO L226 Difference]: Without dead ends: 304 [2024-11-22 12:01:18,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 529 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 12:01:18,796 INFO L432 NwaCegarLoop]: 495 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, 495 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:01:18,797 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:01:18,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-11-22 12:01:18,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2024-11-22 12:01:18,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 223 states have (on average 1.5112107623318385) internal successors, (337), 223 states have internal predecessors, (337), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-22 12:01:18,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 495 transitions. [2024-11-22 12:01:18,886 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 495 transitions. Word has length 528 [2024-11-22 12:01:18,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:01:18,889 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 495 transitions. [2024-11-22 12:01:18,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 69.0) internal successors, (138), 2 states have internal predecessors, (138), 2 states have call successors, (79), 2 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 2 states have call successors, (79) [2024-11-22 12:01:18,889 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 495 transitions. [2024-11-22 12:01:18,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2024-11-22 12:01:18,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:01:18,905 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:01:18,919 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 12:01:19,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-22 12:01:19,106 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:01:19,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:01:19,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1896886094, now seen corresponding path program 1 times [2024-11-22 12:01:19,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:01:19,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833643900] [2024-11-22 12:01:19,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:01:19,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:01:19,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:01:19,655 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2024-11-22 12:01:19,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:01:19,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833643900] [2024-11-22 12:01:19,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833643900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:01:19,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:01:19,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 12:01:19,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592816976] [2024-11-22 12:01:19,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:01:19,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 12:01:19,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:01:19,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 12:01:19,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:01:19,661 INFO L87 Difference]: Start difference. First operand 304 states and 495 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-22 12:01:19,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:01:19,811 INFO L93 Difference]: Finished difference Result 894 states and 1456 transitions. [2024-11-22 12:01:19,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 12:01:19,812 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 528 [2024-11-22 12:01:19,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:01:19,823 INFO L225 Difference]: With dead ends: 894 [2024-11-22 12:01:19,824 INFO L226 Difference]: Without dead ends: 593 [2024-11-22 12:01:19,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:01:19,827 INFO L432 NwaCegarLoop]: 731 mSDtfsCounter, 460 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 1198 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:01:19,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 1198 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:01:19,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2024-11-22 12:01:19,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 389. [2024-11-22 12:01:19,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 308 states have (on average 1.5649350649350648) internal successors, (482), 308 states have internal predecessors, (482), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-22 12:01:19,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 640 transitions. [2024-11-22 12:01:19,885 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 640 transitions. Word has length 528 [2024-11-22 12:01:19,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:01:19,890 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 640 transitions. [2024-11-22 12:01:19,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-22 12:01:19,891 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 640 transitions. [2024-11-22 12:01:19,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 530 [2024-11-22 12:01:19,899 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:01:19,900 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:01:19,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 12:01:19,900 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:01:19,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:01:19,901 INFO L85 PathProgramCache]: Analyzing trace with hash 330047909, now seen corresponding path program 1 times [2024-11-22 12:01:19,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:01:19,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360489179] [2024-11-22 12:01:19,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:01:19,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:01:20,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:01:20,330 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2024-11-22 12:01:20,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:01:20,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360489179] [2024-11-22 12:01:20,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360489179] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:01:20,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:01:20,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 12:01:20,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14668924] [2024-11-22 12:01:20,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:01:20,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 12:01:20,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:01:20,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 12:01:20,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:01:20,334 INFO L87 Difference]: Start difference. First operand 389 states and 640 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-22 12:01:20,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:01:20,408 INFO L93 Difference]: Finished difference Result 1133 states and 1863 transitions. [2024-11-22 12:01:20,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 12:01:20,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 529 [2024-11-22 12:01:20,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:01:20,415 INFO L225 Difference]: With dead ends: 1133 [2024-11-22 12:01:20,415 INFO L226 Difference]: Without dead ends: 747 [2024-11-22 12:01:20,416 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:01:20,417 INFO L432 NwaCegarLoop]: 533 mSDtfsCounter, 460 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 1000 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:01:20,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 1000 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:01:20,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2024-11-22 12:01:20,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 529. [2024-11-22 12:01:20,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 448 states have (on average 1.5959821428571428) internal successors, (715), 448 states have internal predecessors, (715), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-22 12:01:20,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 873 transitions. [2024-11-22 12:01:20,447 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 873 transitions. Word has length 529 [2024-11-22 12:01:20,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:01:20,448 INFO L471 AbstractCegarLoop]: Abstraction has 529 states and 873 transitions. [2024-11-22 12:01:20,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-22 12:01:20,449 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 873 transitions. [2024-11-22 12:01:20,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2024-11-22 12:01:20,457 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:01:20,458 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:01:20,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 12:01:20,458 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:01:20,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:01:20,459 INFO L85 PathProgramCache]: Analyzing trace with hash -295623210, now seen corresponding path program 1 times [2024-11-22 12:01:20,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:01:20,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603222347] [2024-11-22 12:01:20,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:01:20,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:01:20,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:01:20,807 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2024-11-22 12:01:20,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:01:20,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603222347] [2024-11-22 12:01:20,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603222347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:01:20,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:01:20,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 12:01:20,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627457436] [2024-11-22 12:01:20,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:01:20,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 12:01:20,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:01:20,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 12:01:20,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:01:20,816 INFO L87 Difference]: Start difference. First operand 529 states and 873 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-22 12:01:20,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:01:20,951 INFO L93 Difference]: Finished difference Result 1574 states and 2599 transitions. [2024-11-22 12:01:20,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 12:01:20,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 530 [2024-11-22 12:01:20,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:01:20,965 INFO L225 Difference]: With dead ends: 1574 [2024-11-22 12:01:20,965 INFO L226 Difference]: Without dead ends: 1048 [2024-11-22 12:01:20,968 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:01:20,969 INFO L432 NwaCegarLoop]: 844 mSDtfsCounter, 431 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 1300 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:01:20,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 1300 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:01:20,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2024-11-22 12:01:21,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 859. [2024-11-22 12:01:21,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 778 states have (on average 1.6272493573264781) internal successors, (1266), 778 states have internal predecessors, (1266), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-22 12:01:21,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1424 transitions. [2024-11-22 12:01:21,006 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1424 transitions. Word has length 530 [2024-11-22 12:01:21,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:01:21,008 INFO L471 AbstractCegarLoop]: Abstraction has 859 states and 1424 transitions. [2024-11-22 12:01:21,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-22 12:01:21,008 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1424 transitions. [2024-11-22 12:01:21,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2024-11-22 12:01:21,021 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:01:21,022 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:01:21,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 12:01:21,022 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:01:21,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:01:21,023 INFO L85 PathProgramCache]: Analyzing trace with hash 166589268, now seen corresponding path program 1 times [2024-11-22 12:01:21,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:01:21,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274803459] [2024-11-22 12:01:21,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:01:21,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:01:21,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:01:21,385 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2024-11-22 12:01:21,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:01:21,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274803459] [2024-11-22 12:01:21,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274803459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:01:21,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:01:21,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 12:01:21,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611601756] [2024-11-22 12:01:21,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:01:21,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 12:01:21,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:01:21,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 12:01:21,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:01:21,394 INFO L87 Difference]: Start difference. First operand 859 states and 1424 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-22 12:01:21,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:01:21,481 INFO L93 Difference]: Finished difference Result 2003 states and 3297 transitions. [2024-11-22 12:01:21,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 12:01:21,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 530 [2024-11-22 12:01:21,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:01:21,488 INFO L225 Difference]: With dead ends: 2003 [2024-11-22 12:01:21,488 INFO L226 Difference]: Without dead ends: 1147 [2024-11-22 12:01:21,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:01:21,491 INFO L432 NwaCegarLoop]: 893 mSDtfsCounter, 463 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 1349 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:01:21,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 1349 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:01:21,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1147 states. [2024-11-22 12:01:21,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1147 to 859. [2024-11-22 12:01:21,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 778 states have (on average 1.6105398457583548) internal successors, (1253), 778 states have internal predecessors, (1253), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-22 12:01:21,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1411 transitions. [2024-11-22 12:01:21,523 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1411 transitions. Word has length 530 [2024-11-22 12:01:21,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:01:21,525 INFO L471 AbstractCegarLoop]: Abstraction has 859 states and 1411 transitions. [2024-11-22 12:01:21,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-22 12:01:21,525 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1411 transitions. [2024-11-22 12:01:21,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2024-11-22 12:01:21,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:01:21,534 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:01:21,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 12:01:21,534 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:01:21,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:01:21,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1060816308, now seen corresponding path program 1 times [2024-11-22 12:01:21,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:01:21,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267634765] [2024-11-22 12:01:21,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:01:21,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:01:21,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:01:21,956 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2024-11-22 12:01:21,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:01:21,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267634765] [2024-11-22 12:01:21,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267634765] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:01:21,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:01:21,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 12:01:21,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815165643] [2024-11-22 12:01:21,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:01:21,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 12:01:21,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:01:21,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 12:01:21,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:01:21,962 INFO L87 Difference]: Start difference. First operand 859 states and 1411 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-22 12:01:22,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:01:22,011 INFO L93 Difference]: Finished difference Result 1715 states and 2819 transitions. [2024-11-22 12:01:22,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 12:01:22,013 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 530 [2024-11-22 12:01:22,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:01:22,017 INFO L225 Difference]: With dead ends: 1715 [2024-11-22 12:01:22,017 INFO L226 Difference]: Without dead ends: 859 [2024-11-22 12:01:22,019 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:01:22,021 INFO L432 NwaCegarLoop]: 493 mSDtfsCounter, 0 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:01:22,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 977 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:01:22,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2024-11-22 12:01:22,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 859. [2024-11-22 12:01:22,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 778 states have (on average 1.6053984575835476) internal successors, (1249), 778 states have internal predecessors, (1249), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-22 12:01:22,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1407 transitions. [2024-11-22 12:01:22,049 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1407 transitions. Word has length 530 [2024-11-22 12:01:22,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:01:22,051 INFO L471 AbstractCegarLoop]: Abstraction has 859 states and 1407 transitions. [2024-11-22 12:01:22,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-22 12:01:22,051 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1407 transitions. [2024-11-22 12:01:22,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2024-11-22 12:01:22,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:01:22,062 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:01:22,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 12:01:22,063 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:01:22,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:01:22,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1767927047, now seen corresponding path program 1 times [2024-11-22 12:01:22,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:01:22,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324168392] [2024-11-22 12:01:22,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:01:22,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:01:22,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:01:23,025 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2024-11-22 12:01:23,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:01:23,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324168392] [2024-11-22 12:01:23,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324168392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:01:23,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:01:23,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:01:23,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380261843] [2024-11-22 12:01:23,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:01:23,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:01:23,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:01:23,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:01:23,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:01:23,031 INFO L87 Difference]: Start difference. First operand 859 states and 1407 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-22 12:01:23,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:01:23,445 INFO L93 Difference]: Finished difference Result 2572 states and 4216 transitions. [2024-11-22 12:01:23,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:01:23,446 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 531 [2024-11-22 12:01:23,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:01:23,456 INFO L225 Difference]: With dead ends: 2572 [2024-11-22 12:01:23,456 INFO L226 Difference]: Without dead ends: 1716 [2024-11-22 12:01:23,460 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 [2024-11-22 12:01:23,462 INFO L432 NwaCegarLoop]: 491 mSDtfsCounter, 421 mSDsluCounter, 959 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 239 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 239 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:01:23,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 1450 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [239 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:01:23,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states. [2024-11-22 12:01:23,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 1686. [2024-11-22 12:01:23,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1686 states, 1525 states have (on average 1.6098360655737705) internal successors, (2455), 1525 states have internal predecessors, (2455), 158 states have call successors, (158), 2 states have call predecessors, (158), 2 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-22 12:01:23,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1686 states to 1686 states and 2771 transitions. [2024-11-22 12:01:23,539 INFO L78 Accepts]: Start accepts. Automaton has 1686 states and 2771 transitions. Word has length 531 [2024-11-22 12:01:23,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:01:23,542 INFO L471 AbstractCegarLoop]: Abstraction has 1686 states and 2771 transitions. [2024-11-22 12:01:23,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-22 12:01:23,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1686 states and 2771 transitions. [2024-11-22 12:01:23,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2024-11-22 12:01:23,579 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:01:23,580 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:01:23,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 12:01:23,581 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:01:23,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:01:23,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1990505276, now seen corresponding path program 1 times [2024-11-22 12:01:23,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:01:23,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123914665] [2024-11-22 12:01:23,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:01:23,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:01:23,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:01:26,407 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2024-11-22 12:01:26,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:01:26,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123914665] [2024-11-22 12:01:26,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123914665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:01:26,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:01:26,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:01:26,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757448484] [2024-11-22 12:01:26,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:01:26,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:01:26,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:01:26,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:01:26,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:01:26,411 INFO L87 Difference]: Start difference. First operand 1686 states and 2771 transitions. Second operand has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-22 12:01:27,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:01:27,178 INFO L93 Difference]: Finished difference Result 4150 states and 6834 transitions. [2024-11-22 12:01:27,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:01:27,179 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 532 [2024-11-22 12:01:27,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:01:27,192 INFO L225 Difference]: With dead ends: 4150 [2024-11-22 12:01:27,193 INFO L226 Difference]: Without dead ends: 2960 [2024-11-22 12:01:27,196 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:01:27,198 INFO L432 NwaCegarLoop]: 624 mSDtfsCounter, 882 mSDsluCounter, 860 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 1484 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 12:01:27,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [882 Valid, 1484 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 12:01:27,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2960 states. [2024-11-22 12:01:27,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2960 to 2901. [2024-11-22 12:01:27,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2901 states, 2735 states have (on average 1.6321755027422304) internal successors, (4464), 2736 states have internal predecessors, (4464), 160 states have call successors, (160), 5 states have call predecessors, (160), 5 states have return successors, (160), 159 states have call predecessors, (160), 160 states have call successors, (160) [2024-11-22 12:01:27,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2901 states to 2901 states and 4784 transitions. [2024-11-22 12:01:27,314 INFO L78 Accepts]: Start accepts. Automaton has 2901 states and 4784 transitions. Word has length 532 [2024-11-22 12:01:27,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:01:27,315 INFO L471 AbstractCegarLoop]: Abstraction has 2901 states and 4784 transitions. [2024-11-22 12:01:27,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-22 12:01:27,315 INFO L276 IsEmpty]: Start isEmpty. Operand 2901 states and 4784 transitions. [2024-11-22 12:01:27,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2024-11-22 12:01:27,321 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:01:27,321 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:01:27,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 12:01:27,322 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:01:27,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:01:27,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1951373638, now seen corresponding path program 1 times [2024-11-22 12:01:27,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:01:27,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179057385] [2024-11-22 12:01:27,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:01:27,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:01:27,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:01:28,689 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2024-11-22 12:01:28,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:01:28,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179057385] [2024-11-22 12:01:28,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179057385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:01:28,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:01:28,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:01:28,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703949250] [2024-11-22 12:01:28,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:01:28,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:01:28,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:01:28,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:01:28,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:01:28,696 INFO L87 Difference]: Start difference. First operand 2901 states and 4784 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-22 12:01:29,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:01:29,235 INFO L93 Difference]: Finished difference Result 6580 states and 10806 transitions. [2024-11-22 12:01:29,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 12:01:29,236 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 532 [2024-11-22 12:01:29,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:01:29,255 INFO L225 Difference]: With dead ends: 6580 [2024-11-22 12:01:29,255 INFO L226 Difference]: Without dead ends: 3830 [2024-11-22 12:01:29,262 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:01:29,264 INFO L432 NwaCegarLoop]: 838 mSDtfsCounter, 983 mSDsluCounter, 1988 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 2826 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:01:29,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [983 Valid, 2826 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:01:29,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3830 states. [2024-11-22 12:01:29,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3830 to 2902. [2024-11-22 12:01:29,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2902 states, 2736 states have (on average 1.6319444444444444) internal successors, (4465), 2737 states have internal predecessors, (4465), 160 states have call successors, (160), 5 states have call predecessors, (160), 5 states have return successors, (160), 159 states have call predecessors, (160), 160 states have call successors, (160) [2024-11-22 12:01:29,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2902 states to 2902 states and 4785 transitions. [2024-11-22 12:01:29,407 INFO L78 Accepts]: Start accepts. Automaton has 2902 states and 4785 transitions. Word has length 532 [2024-11-22 12:01:29,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:01:29,408 INFO L471 AbstractCegarLoop]: Abstraction has 2902 states and 4785 transitions. [2024-11-22 12:01:29,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-22 12:01:29,409 INFO L276 IsEmpty]: Start isEmpty. Operand 2902 states and 4785 transitions. [2024-11-22 12:01:29,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2024-11-22 12:01:29,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:01:29,416 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:01:29,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 12:01:29,417 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:01:29,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:01:29,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1060402920, now seen corresponding path program 1 times [2024-11-22 12:01:29,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:01:29,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54721583] [2024-11-22 12:01:29,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:01:29,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:01:30,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:01:31,061 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2024-11-22 12:01:31,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:01:31,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54721583] [2024-11-22 12:01:31,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54721583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:01:31,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:01:31,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:01:31,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828856548] [2024-11-22 12:01:31,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:01:31,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:01:31,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:01:31,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:01:31,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:01:31,066 INFO L87 Difference]: Start difference. First operand 2902 states and 4785 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-22 12:01:31,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:01:31,931 INFO L93 Difference]: Finished difference Result 6285 states and 10367 transitions. [2024-11-22 12:01:31,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 12:01:31,932 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 533 [2024-11-22 12:01:31,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:01:31,949 INFO L225 Difference]: With dead ends: 6285 [2024-11-22 12:01:31,949 INFO L226 Difference]: Without dead ends: 3531 [2024-11-22 12:01:31,955 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-22 12:01:31,956 INFO L432 NwaCegarLoop]: 480 mSDtfsCounter, 842 mSDsluCounter, 1574 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 2054 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 12:01:31,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 2054 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 12:01:31,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3531 states. [2024-11-22 12:01:32,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3531 to 2906. [2024-11-22 12:01:32,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2906 states, 2740 states have (on average 1.6313868613138687) internal successors, (4470), 2741 states have internal predecessors, (4470), 160 states have call successors, (160), 5 states have call predecessors, (160), 5 states have return successors, (160), 159 states have call predecessors, (160), 160 states have call successors, (160) [2024-11-22 12:01:32,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2906 states to 2906 states and 4790 transitions. [2024-11-22 12:01:32,089 INFO L78 Accepts]: Start accepts. Automaton has 2906 states and 4790 transitions. Word has length 533 [2024-11-22 12:01:32,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:01:32,090 INFO L471 AbstractCegarLoop]: Abstraction has 2906 states and 4790 transitions. [2024-11-22 12:01:32,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-22 12:01:32,094 INFO L276 IsEmpty]: Start isEmpty. Operand 2906 states and 4790 transitions. [2024-11-22 12:01:32,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2024-11-22 12:01:32,100 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:01:32,100 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:01:32,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 12:01:32,100 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:01:32,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:01:32,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1035057297, now seen corresponding path program 1 times [2024-11-22 12:01:32,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:01:32,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920958391] [2024-11-22 12:01:32,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:01:32,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:01:32,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:01:33,614 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2024-11-22 12:01:33,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:01:33,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920958391] [2024-11-22 12:01:33,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920958391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:01:33,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:01:33,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:01:33,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67547610] [2024-11-22 12:01:33,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:01:33,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:01:33,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:01:33,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:01:33,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:01:33,621 INFO L87 Difference]: Start difference. First operand 2906 states and 4790 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-22 12:01:34,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:01:34,045 INFO L93 Difference]: Finished difference Result 7711 states and 12669 transitions. [2024-11-22 12:01:34,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:01:34,046 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 533 [2024-11-22 12:01:34,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:01:34,070 INFO L225 Difference]: With dead ends: 7711 [2024-11-22 12:01:34,070 INFO L226 Difference]: Without dead ends: 5416 [2024-11-22 12:01:34,077 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:01:34,078 INFO L432 NwaCegarLoop]: 751 mSDtfsCounter, 590 mSDsluCounter, 1066 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 590 SdHoareTripleChecker+Valid, 1817 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:01:34,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [590 Valid, 1817 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:01:34,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5416 states. [2024-11-22 12:01:34,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5416 to 4876. [2024-11-22 12:01:34,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4876 states, 4656 states have (on average 1.6327319587628866) internal successors, (7602), 4659 states have internal predecessors, (7602), 211 states have call successors, (211), 8 states have call predecessors, (211), 8 states have return successors, (211), 208 states have call predecessors, (211), 211 states have call successors, (211) [2024-11-22 12:01:34,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4876 states to 4876 states and 8024 transitions. [2024-11-22 12:01:34,335 INFO L78 Accepts]: Start accepts. Automaton has 4876 states and 8024 transitions. Word has length 533 [2024-11-22 12:01:34,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:01:34,336 INFO L471 AbstractCegarLoop]: Abstraction has 4876 states and 8024 transitions. [2024-11-22 12:01:34,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-22 12:01:34,337 INFO L276 IsEmpty]: Start isEmpty. Operand 4876 states and 8024 transitions. [2024-11-22 12:01:34,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2024-11-22 12:01:34,344 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:01:34,344 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:01:34,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 12:01:34,345 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:01:34,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:01:34,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1752826471, now seen corresponding path program 1 times [2024-11-22 12:01:34,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:01:34,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800004281] [2024-11-22 12:01:34,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:01:34,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:01:34,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:01:34,809 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2024-11-22 12:01:34,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:01:34,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800004281] [2024-11-22 12:01:34,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800004281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:01:34,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:01:34,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:01:34,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999093671] [2024-11-22 12:01:34,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:01:34,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:01:34,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:01:34,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:01:34,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:01:34,813 INFO L87 Difference]: Start difference. First operand 4876 states and 8024 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-22 12:01:35,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:01:35,572 INFO L93 Difference]: Finished difference Result 10311 states and 16972 transitions. [2024-11-22 12:01:35,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 12:01:35,573 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 533 [2024-11-22 12:01:35,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:01:35,610 INFO L225 Difference]: With dead ends: 10311 [2024-11-22 12:01:35,611 INFO L226 Difference]: Without dead ends: 5678 [2024-11-22 12:01:35,620 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-22 12:01:35,620 INFO L432 NwaCegarLoop]: 480 mSDtfsCounter, 1145 mSDsluCounter, 1748 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 397 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1145 SdHoareTripleChecker+Valid, 2228 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 397 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 12:01:35,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1145 Valid, 2228 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [397 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 12:01:35,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5678 states. [2024-11-22 12:01:35,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5678 to 4876. [2024-11-22 12:01:35,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4876 states, 4656 states have (on average 1.631872852233677) internal successors, (7598), 4659 states have internal predecessors, (7598), 211 states have call successors, (211), 8 states have call predecessors, (211), 8 states have return successors, (211), 208 states have call predecessors, (211), 211 states have call successors, (211) [2024-11-22 12:01:35,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4876 states to 4876 states and 8020 transitions. [2024-11-22 12:01:35,825 INFO L78 Accepts]: Start accepts. Automaton has 4876 states and 8020 transitions. Word has length 533 [2024-11-22 12:01:35,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:01:35,826 INFO L471 AbstractCegarLoop]: Abstraction has 4876 states and 8020 transitions. [2024-11-22 12:01:35,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-22 12:01:35,827 INFO L276 IsEmpty]: Start isEmpty. Operand 4876 states and 8020 transitions. [2024-11-22 12:01:35,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2024-11-22 12:01:35,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:01:35,836 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:01:35,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 12:01:35,836 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:01:35,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:01:35,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1862868571, now seen corresponding path program 1 times [2024-11-22 12:01:35,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:01:35,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651725076] [2024-11-22 12:01:35,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:01:35,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:01:36,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:01:36,948 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2024-11-22 12:01:36,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:01:36,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651725076] [2024-11-22 12:01:36,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651725076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:01:36,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:01:36,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:01:36,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409425678] [2024-11-22 12:01:36,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:01:36,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:01:36,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:01:36,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:01:36,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:01:36,952 INFO L87 Difference]: Start difference. First operand 4876 states and 8020 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-22 12:01:37,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:01:37,593 INFO L93 Difference]: Finished difference Result 16428 states and 26738 transitions. [2024-11-22 12:01:37,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:01:37,595 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 533 [2024-11-22 12:01:37,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:01:37,675 INFO L225 Difference]: With dead ends: 16428 [2024-11-22 12:01:37,675 INFO L226 Difference]: Without dead ends: 11761 [2024-11-22 12:01:37,684 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:01:37,685 INFO L432 NwaCegarLoop]: 932 mSDtfsCounter, 1259 mSDsluCounter, 2302 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1259 SdHoareTripleChecker+Valid, 3234 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:01:37,685 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1259 Valid, 3234 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:01:37,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11761 states. [2024-11-22 12:01:37,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11761 to 9494. [2024-11-22 12:01:37,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9494 states, 9162 states have (on average 1.6278105217201484) internal successors, (14914), 9169 states have internal predecessors, (14914), 317 states have call successors, (317), 14 states have call predecessors, (317), 14 states have return successors, (317), 310 states have call predecessors, (317), 317 states have call successors, (317) [2024-11-22 12:01:38,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9494 states to 9494 states and 15548 transitions. [2024-11-22 12:01:38,020 INFO L78 Accepts]: Start accepts. Automaton has 9494 states and 15548 transitions. Word has length 533 [2024-11-22 12:01:38,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:01:38,021 INFO L471 AbstractCegarLoop]: Abstraction has 9494 states and 15548 transitions. [2024-11-22 12:01:38,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-22 12:01:38,021 INFO L276 IsEmpty]: Start isEmpty. Operand 9494 states and 15548 transitions. [2024-11-22 12:01:38,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2024-11-22 12:01:38,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:01:38,033 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:01:38,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 12:01:38,034 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:01:38,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:01:38,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1259343197, now seen corresponding path program 1 times [2024-11-22 12:01:38,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:01:38,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991061416] [2024-11-22 12:01:38,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:01:38,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:01:39,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:01:40,151 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 120 proven. 114 refuted. 0 times theorem prover too weak. 12090 trivial. 0 not checked. [2024-11-22 12:01:40,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:01:40,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991061416] [2024-11-22 12:01:40,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991061416] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:01:40,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084370061] [2024-11-22 12:01:40,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:01:40,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:01:40,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:01:40,155 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:01:40,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 12:01:40,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:01:40,616 INFO L255 TraceCheckSpWp]: Trace formula consists of 1242 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-22 12:01:40,635 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:01:42,198 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 1356 proven. 444 refuted. 0 times theorem prover too weak. 10524 trivial. 0 not checked. [2024-11-22 12:01:42,198 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 12:01:42,875 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 18 proven. 447 refuted. 0 times theorem prover too weak. 11859 trivial. 0 not checked. [2024-11-22 12:01:42,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2084370061] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 12:01:42,876 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 12:01:42,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 16 [2024-11-22 12:01:42,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019254493] [2024-11-22 12:01:42,876 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 12:01:42,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-22 12:01:42,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:01:42,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-22 12:01:42,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2024-11-22 12:01:42,881 INFO L87 Difference]: Start difference. First operand 9494 states and 15548 transitions. Second operand has 16 states, 16 states have (on average 20.375) internal successors, (326), 16 states have internal predecessors, (326), 6 states have call successors, (234), 3 states have call predecessors, (234), 7 states have return successors, (235), 6 states have call predecessors, (235), 6 states have call successors, (235) [2024-11-22 12:01:44,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:01:44,758 INFO L93 Difference]: Finished difference Result 13971 states and 22740 transitions. [2024-11-22 12:01:44,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-22 12:01:44,759 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 20.375) internal successors, (326), 16 states have internal predecessors, (326), 6 states have call successors, (234), 3 states have call predecessors, (234), 7 states have return successors, (235), 6 states have call predecessors, (235), 6 states have call successors, (235) Word has length 533 [2024-11-22 12:01:44,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:01:44,776 INFO L225 Difference]: With dead ends: 13971 [2024-11-22 12:01:44,776 INFO L226 Difference]: Without dead ends: 5489 [2024-11-22 12:01:44,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1099 GetRequests, 1061 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=432, Invalid=1050, Unknown=0, NotChecked=0, Total=1482 [2024-11-22 12:01:44,792 INFO L432 NwaCegarLoop]: 351 mSDtfsCounter, 2145 mSDsluCounter, 2059 mSDsCounter, 0 mSdLazyCounter, 1526 mSolverCounterSat, 375 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2148 SdHoareTripleChecker+Valid, 2410 SdHoareTripleChecker+Invalid, 1901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 375 IncrementalHoareTripleChecker+Valid, 1526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:01:44,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2148 Valid, 2410 Invalid, 1901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [375 Valid, 1526 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-22 12:01:44,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5489 states. [2024-11-22 12:01:44,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5489 to 5353. [2024-11-22 12:01:44,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5353 states, 5022 states have (on average 1.5937873357228196) internal successors, (8004), 5025 states have internal predecessors, (8004), 309 states have call successors, (309), 21 states have call predecessors, (309), 21 states have return successors, (309), 306 states have call predecessors, (309), 309 states have call successors, (309) [2024-11-22 12:01:45,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5353 states to 5353 states and 8622 transitions. [2024-11-22 12:01:45,003 INFO L78 Accepts]: Start accepts. Automaton has 5353 states and 8622 transitions. Word has length 533 [2024-11-22 12:01:45,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:01:45,004 INFO L471 AbstractCegarLoop]: Abstraction has 5353 states and 8622 transitions. [2024-11-22 12:01:45,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 20.375) internal successors, (326), 16 states have internal predecessors, (326), 6 states have call successors, (234), 3 states have call predecessors, (234), 7 states have return successors, (235), 6 states have call predecessors, (235), 6 states have call successors, (235) [2024-11-22 12:01:45,005 INFO L276 IsEmpty]: Start isEmpty. Operand 5353 states and 8622 transitions. [2024-11-22 12:01:45,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2024-11-22 12:01:45,012 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:01:45,013 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:01:45,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-22 12:01:45,216 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,SelfDestructingSolverStorable13 [2024-11-22 12:01:45,218 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:01:45,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:01:45,218 INFO L85 PathProgramCache]: Analyzing trace with hash -936118493, now seen corresponding path program 1 times [2024-11-22 12:01:45,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:01:45,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825205476] [2024-11-22 12:01:45,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:01:45,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:01:45,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:01:45,981 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2024-11-22 12:01:45,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:01:45,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825205476] [2024-11-22 12:01:45,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825205476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:01:45,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:01:45,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:01:45,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417028383] [2024-11-22 12:01:45,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:01:45,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:01:45,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:01:45,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:01:45,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:01:45,986 INFO L87 Difference]: Start difference. First operand 5353 states and 8622 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-22 12:01:46,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:01:46,649 INFO L93 Difference]: Finished difference Result 12929 states and 20755 transitions. [2024-11-22 12:01:46,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:01:46,649 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 535 [2024-11-22 12:01:46,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:01:46,674 INFO L225 Difference]: With dead ends: 12929 [2024-11-22 12:01:46,674 INFO L226 Difference]: Without dead ends: 8279 [2024-11-22 12:01:46,687 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:01:46,688 INFO L432 NwaCegarLoop]: 819 mSDtfsCounter, 781 mSDsluCounter, 1056 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 1875 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:01:46,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 1875 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:01:46,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8279 states. [2024-11-22 12:01:46,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8279 to 5813. [2024-11-22 12:01:46,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5813 states, 5481 states have (on average 1.5845648604269293) internal successors, (8685), 5484 states have internal predecessors, (8685), 309 states have call successors, (309), 22 states have call predecessors, (309), 22 states have return successors, (309), 306 states have call predecessors, (309), 309 states have call successors, (309) [2024-11-22 12:01:46,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5813 states to 5813 states and 9303 transitions. [2024-11-22 12:01:46,925 INFO L78 Accepts]: Start accepts. Automaton has 5813 states and 9303 transitions. Word has length 535 [2024-11-22 12:01:46,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:01:46,926 INFO L471 AbstractCegarLoop]: Abstraction has 5813 states and 9303 transitions. [2024-11-22 12:01:46,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-22 12:01:46,926 INFO L276 IsEmpty]: Start isEmpty. Operand 5813 states and 9303 transitions. [2024-11-22 12:01:46,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2024-11-22 12:01:46,934 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:01:46,934 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:01:46,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 12:01:46,934 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:01:46,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:01:46,935 INFO L85 PathProgramCache]: Analyzing trace with hash 630639457, now seen corresponding path program 1 times [2024-11-22 12:01:46,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:01:46,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832781548] [2024-11-22 12:01:46,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:01:46,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:01:48,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:01:49,011 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 108 proven. 126 refuted. 0 times theorem prover too weak. 12090 trivial. 0 not checked. [2024-11-22 12:01:49,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:01:49,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832781548] [2024-11-22 12:01:49,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832781548] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:01:49,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559968132] [2024-11-22 12:01:49,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:01:49,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:01:49,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:01:49,016 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:01:49,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 12:01:49,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:01:49,497 INFO L255 TraceCheckSpWp]: Trace formula consists of 1246 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 12:01:49,509 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:01:49,834 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 5484 proven. 75 refuted. 0 times theorem prover too weak. 6765 trivial. 0 not checked. [2024-11-22 12:01:49,834 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 12:01:50,243 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 159 proven. 75 refuted. 0 times theorem prover too weak. 12090 trivial. 0 not checked. [2024-11-22 12:01:50,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559968132] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 12:01:50,243 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 12:01:50,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-22 12:01:50,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677707241] [2024-11-22 12:01:50,244 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 12:01:50,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 12:01:50,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:01:50,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 12:01:50,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:01:50,248 INFO L87 Difference]: Start difference. First operand 5813 states and 9303 transitions. Second operand has 8 states, 8 states have (on average 29.25) internal successors, (234), 8 states have internal predecessors, (234), 3 states have call successors, (146), 2 states have call predecessors, (146), 4 states have return successors, (148), 3 states have call predecessors, (148), 3 states have call successors, (148) [2024-11-22 12:01:51,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:01:51,178 INFO L93 Difference]: Finished difference Result 8950 states and 14334 transitions. [2024-11-22 12:01:51,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 12:01:51,179 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 29.25) internal successors, (234), 8 states have internal predecessors, (234), 3 states have call successors, (146), 2 states have call predecessors, (146), 4 states have return successors, (148), 3 states have call predecessors, (148), 3 states have call successors, (148) Word has length 535 [2024-11-22 12:01:51,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:01:51,191 INFO L225 Difference]: With dead ends: 8950 [2024-11-22 12:01:51,192 INFO L226 Difference]: Without dead ends: 4313 [2024-11-22 12:01:51,200 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1082 GetRequests, 1067 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2024-11-22 12:01:51,200 INFO L432 NwaCegarLoop]: 373 mSDtfsCounter, 850 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 329 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 329 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 12:01:51,200 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 962 Invalid, 833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [329 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 12:01:51,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4313 states. [2024-11-22 12:01:51,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4313 to 3619. [2024-11-22 12:01:51,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3619 states, 3280 states have (on average 1.5304878048780488) internal successors, (5020), 3283 states have internal predecessors, (5020), 309 states have call successors, (309), 29 states have call predecessors, (309), 29 states have return successors, (309), 306 states have call predecessors, (309), 309 states have call successors, (309) [2024-11-22 12:01:51,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3619 states to 3619 states and 5638 transitions. [2024-11-22 12:01:51,399 INFO L78 Accepts]: Start accepts. Automaton has 3619 states and 5638 transitions. Word has length 535 [2024-11-22 12:01:51,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:01:51,400 INFO L471 AbstractCegarLoop]: Abstraction has 3619 states and 5638 transitions. [2024-11-22 12:01:51,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 29.25) internal successors, (234), 8 states have internal predecessors, (234), 3 states have call successors, (146), 2 states have call predecessors, (146), 4 states have return successors, (148), 3 states have call predecessors, (148), 3 states have call successors, (148) [2024-11-22 12:01:51,401 INFO L276 IsEmpty]: Start isEmpty. Operand 3619 states and 5638 transitions. [2024-11-22 12:01:51,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2024-11-22 12:01:51,406 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:01:51,406 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:01:51,420 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-22 12:01:51,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:01:51,608 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:01:51,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:01:51,608 INFO L85 PathProgramCache]: Analyzing trace with hash -2078651898, now seen corresponding path program 1 times [2024-11-22 12:01:51,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:01:51,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595092081] [2024-11-22 12:01:51,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:01:51,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:01:51,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:01:52,371 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2024-11-22 12:01:52,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:01:52,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595092081] [2024-11-22 12:01:52,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595092081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:01:52,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:01:52,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:01:52,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704668823] [2024-11-22 12:01:52,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:01:52,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:01:52,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:01:52,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:01:52,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:01:52,374 INFO L87 Difference]: Start difference. First operand 3619 states and 5638 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-22 12:01:53,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:01:53,125 INFO L93 Difference]: Finished difference Result 7803 states and 12172 transitions. [2024-11-22 12:01:53,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:01:53,126 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 537 [2024-11-22 12:01:53,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:01:53,143 INFO L225 Difference]: With dead ends: 7803 [2024-11-22 12:01:53,144 INFO L226 Difference]: Without dead ends: 5246 [2024-11-22 12:01:53,150 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:01:53,151 INFO L432 NwaCegarLoop]: 709 mSDtfsCounter, 638 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 12:01:53,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 1112 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 12:01:53,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5246 states. [2024-11-22 12:01:53,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5246 to 2625. [2024-11-22 12:01:53,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2625 states, 2397 states have (on average 1.5047976637463496) internal successors, (3607), 2398 states have internal predecessors, (3607), 207 states have call successors, (207), 20 states have call predecessors, (207), 20 states have return successors, (207), 206 states have call predecessors, (207), 207 states have call successors, (207) [2024-11-22 12:01:53,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2625 states to 2625 states and 4021 transitions. [2024-11-22 12:01:53,318 INFO L78 Accepts]: Start accepts. Automaton has 2625 states and 4021 transitions. Word has length 537 [2024-11-22 12:01:53,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:01:53,319 INFO L471 AbstractCegarLoop]: Abstraction has 2625 states and 4021 transitions. [2024-11-22 12:01:53,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-22 12:01:53,320 INFO L276 IsEmpty]: Start isEmpty. Operand 2625 states and 4021 transitions. [2024-11-22 12:01:53,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2024-11-22 12:01:53,325 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:01:53,325 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:01:53,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 12:01:53,326 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:01:53,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:01:53,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1318922120, now seen corresponding path program 1 times [2024-11-22 12:01:53,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:01:53,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681054690] [2024-11-22 12:01:53,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:01:53,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:01:53,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:01:53,997 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2024-11-22 12:01:53,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:01:53,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681054690] [2024-11-22 12:01:53,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681054690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:01:53,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:01:53,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:01:53,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020647141] [2024-11-22 12:01:53,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:01:53,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:01:53,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:01:53,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:01:53,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:01:54,000 INFO L87 Difference]: Start difference. First operand 2625 states and 4021 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-22 12:01:54,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:01:54,796 INFO L93 Difference]: Finished difference Result 5942 states and 9096 transitions. [2024-11-22 12:01:54,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:01:54,796 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 537 [2024-11-22 12:01:54,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:01:54,810 INFO L225 Difference]: With dead ends: 5942 [2024-11-22 12:01:54,811 INFO L226 Difference]: Without dead ends: 4192 [2024-11-22 12:01:54,815 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:01:54,815 INFO L432 NwaCegarLoop]: 709 mSDtfsCounter, 860 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 1399 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 12:01:54,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [860 Valid, 1399 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 12:01:54,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4192 states. [2024-11-22 12:01:54,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4192 to 3183. [2024-11-22 12:01:54,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3183 states, 2955 states have (on average 1.499492385786802) internal successors, (4431), 2956 states have internal predecessors, (4431), 207 states have call successors, (207), 20 states have call predecessors, (207), 20 states have return successors, (207), 206 states have call predecessors, (207), 207 states have call successors, (207) [2024-11-22 12:01:54,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3183 states to 3183 states and 4845 transitions. [2024-11-22 12:01:54,966 INFO L78 Accepts]: Start accepts. Automaton has 3183 states and 4845 transitions. Word has length 537 [2024-11-22 12:01:54,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:01:54,967 INFO L471 AbstractCegarLoop]: Abstraction has 3183 states and 4845 transitions. [2024-11-22 12:01:54,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-22 12:01:54,968 INFO L276 IsEmpty]: Start isEmpty. Operand 3183 states and 4845 transitions. [2024-11-22 12:01:54,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2024-11-22 12:01:54,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:01:54,973 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:01:54,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 12:01:54,974 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:01:54,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:01:54,974 INFO L85 PathProgramCache]: Analyzing trace with hash -592120438, now seen corresponding path program 1 times [2024-11-22 12:01:54,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:01:54,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125669903] [2024-11-22 12:01:54,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:01:54,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:01:55,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:01:55,651 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2024-11-22 12:01:55,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:01:55,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125669903] [2024-11-22 12:01:55,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125669903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:01:55,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:01:55,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:01:55,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940182154] [2024-11-22 12:01:55,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:01:55,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:01:55,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:01:55,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:01:55,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:01:55,656 INFO L87 Difference]: Start difference. First operand 3183 states and 4845 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-22 12:01:56,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:01:56,524 INFO L93 Difference]: Finished difference Result 5490 states and 8318 transitions. [2024-11-22 12:01:56,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:01:56,525 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 537 [2024-11-22 12:01:56,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:01:56,535 INFO L225 Difference]: With dead ends: 5490 [2024-11-22 12:01:56,536 INFO L226 Difference]: Without dead ends: 3150 [2024-11-22 12:01:56,541 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:01:56,542 INFO L432 NwaCegarLoop]: 780 mSDtfsCounter, 953 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 1386 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 12:01:56,542 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [953 Valid, 1386 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 12:01:56,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3150 states. [2024-11-22 12:01:56,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3150 to 2385. [2024-11-22 12:01:56,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2385 states, 2157 states have (on average 1.4626796476587853) internal successors, (3155), 2158 states have internal predecessors, (3155), 207 states have call successors, (207), 20 states have call predecessors, (207), 20 states have return successors, (207), 206 states have call predecessors, (207), 207 states have call successors, (207) [2024-11-22 12:01:56,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2385 states to 2385 states and 3569 transitions. [2024-11-22 12:01:56,679 INFO L78 Accepts]: Start accepts. Automaton has 2385 states and 3569 transitions. Word has length 537 [2024-11-22 12:01:56,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:01:56,682 INFO L471 AbstractCegarLoop]: Abstraction has 2385 states and 3569 transitions. [2024-11-22 12:01:56,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-22 12:01:56,682 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states and 3569 transitions. [2024-11-22 12:01:56,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2024-11-22 12:01:56,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:01:56,687 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:01:56,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 12:01:56,688 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:01:56,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:01:56,688 INFO L85 PathProgramCache]: Analyzing trace with hash -2107510832, now seen corresponding path program 1 times [2024-11-22 12:01:56,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:01:56,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207460776] [2024-11-22 12:01:56,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:01:56,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:01:56,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:01:58,278 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2024-11-22 12:01:58,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:01:58,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207460776] [2024-11-22 12:01:58,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207460776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:01:58,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:01:58,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:01:58,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305613780] [2024-11-22 12:01:58,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:01:58,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:01:58,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:01:58,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:01:58,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:01:58,282 INFO L87 Difference]: Start difference. First operand 2385 states and 3569 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-22 12:01:58,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:01:58,671 INFO L93 Difference]: Finished difference Result 4040 states and 6069 transitions. [2024-11-22 12:01:58,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:01:58,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 537 [2024-11-22 12:01:58,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:01:58,685 INFO L225 Difference]: With dead ends: 4040 [2024-11-22 12:01:58,685 INFO L226 Difference]: Without dead ends: 2405 [2024-11-22 12:01:58,688 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:01:58,689 INFO L432 NwaCegarLoop]: 641 mSDtfsCounter, 401 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 1309 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:01:58,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 1309 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:01:58,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2405 states. [2024-11-22 12:01:58,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2405 to 2385. [2024-11-22 12:01:58,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2385 states, 2157 states have (on average 1.4571163653222068) internal successors, (3143), 2158 states have internal predecessors, (3143), 207 states have call successors, (207), 20 states have call predecessors, (207), 20 states have return successors, (207), 206 states have call predecessors, (207), 207 states have call successors, (207) [2024-11-22 12:01:58,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2385 states to 2385 states and 3557 transitions. [2024-11-22 12:01:58,822 INFO L78 Accepts]: Start accepts. Automaton has 2385 states and 3557 transitions. Word has length 537 [2024-11-22 12:01:58,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:01:58,823 INFO L471 AbstractCegarLoop]: Abstraction has 2385 states and 3557 transitions. [2024-11-22 12:01:58,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-22 12:01:58,823 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states and 3557 transitions. [2024-11-22 12:01:58,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2024-11-22 12:01:58,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:01:58,828 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:01:58,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 12:01:58,829 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:01:58,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:01:58,829 INFO L85 PathProgramCache]: Analyzing trace with hash -168348786, now seen corresponding path program 1 times [2024-11-22 12:01:58,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:01:58,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537250000] [2024-11-22 12:01:58,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:01:58,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:02:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:02:00,993 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 102 proven. 132 refuted. 0 times theorem prover too weak. 12090 trivial. 0 not checked. [2024-11-22 12:02:00,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:02:00,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537250000] [2024-11-22 12:02:00,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537250000] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:02:00,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236993731] [2024-11-22 12:02:00,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:02:00,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:02:00,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:02:00,997 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:02:00,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 12:02:01,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:02:01,404 INFO L255 TraceCheckSpWp]: Trace formula consists of 1250 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 12:02:01,413 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:02:02,018 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 6130 proven. 132 refuted. 0 times theorem prover too weak. 6062 trivial. 0 not checked. [2024-11-22 12:02:02,018 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 12:02:02,688 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 102 proven. 132 refuted. 0 times theorem prover too weak. 12090 trivial. 0 not checked. [2024-11-22 12:02:02,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1236993731] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 12:02:02,689 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 12:02:02,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2024-11-22 12:02:02,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084535792] [2024-11-22 12:02:02,690 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 12:02:02,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-22 12:02:02,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:02:02,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-22 12:02:02,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-11-22 12:02:02,692 INFO L87 Difference]: Start difference. First operand 2385 states and 3557 transitions. Second operand has 12 states, 12 states have (on average 19.833333333333332) internal successors, (238), 12 states have internal predecessors, (238), 3 states have call successors, (167), 2 states have call predecessors, (167), 4 states have return successors, (168), 3 states have call predecessors, (168), 3 states have call successors, (168) [2024-11-22 12:02:04,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:02:04,440 INFO L93 Difference]: Finished difference Result 5420 states and 8101 transitions. [2024-11-22 12:02:04,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-22 12:02:04,441 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 19.833333333333332) internal successors, (238), 12 states have internal predecessors, (238), 3 states have call successors, (167), 2 states have call predecessors, (167), 4 states have return successors, (168), 3 states have call predecessors, (168), 3 states have call successors, (168) Word has length 537 [2024-11-22 12:02:04,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:02:04,454 INFO L225 Difference]: With dead ends: 5420 [2024-11-22 12:02:04,454 INFO L226 Difference]: Without dead ends: 3597 [2024-11-22 12:02:04,459 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1090 GetRequests, 1067 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=165, Invalid=341, Unknown=0, NotChecked=0, Total=506 [2024-11-22 12:02:04,460 INFO L432 NwaCegarLoop]: 678 mSDtfsCounter, 1449 mSDsluCounter, 2216 mSDsCounter, 0 mSdLazyCounter, 1773 mSolverCounterSat, 377 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1595 SdHoareTripleChecker+Valid, 2894 SdHoareTripleChecker+Invalid, 2150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 377 IncrementalHoareTripleChecker+Valid, 1773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:02:04,460 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1595 Valid, 2894 Invalid, 2150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [377 Valid, 1773 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-22 12:02:04,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3597 states. [2024-11-22 12:02:04,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3597 to 3073. [2024-11-22 12:02:04,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3073 states, 2651 states have (on average 1.4481327800829875) internal successors, (3839), 2656 states have internal predecessors, (3839), 377 states have call successors, (377), 44 states have call predecessors, (377), 44 states have return successors, (377), 372 states have call predecessors, (377), 377 states have call successors, (377) [2024-11-22 12:02:04,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3073 states to 3073 states and 4593 transitions. [2024-11-22 12:02:04,730 INFO L78 Accepts]: Start accepts. Automaton has 3073 states and 4593 transitions. Word has length 537 [2024-11-22 12:02:04,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:02:04,731 INFO L471 AbstractCegarLoop]: Abstraction has 3073 states and 4593 transitions. [2024-11-22 12:02:04,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 19.833333333333332) internal successors, (238), 12 states have internal predecessors, (238), 3 states have call successors, (167), 2 states have call predecessors, (167), 4 states have return successors, (168), 3 states have call predecessors, (168), 3 states have call successors, (168) [2024-11-22 12:02:04,732 INFO L276 IsEmpty]: Start isEmpty. Operand 3073 states and 4593 transitions. [2024-11-22 12:02:04,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2024-11-22 12:02:04,736 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:02:04,737 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:02:04,749 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 12:02:04,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:02:04,938 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:02:04,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:02:04,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1912359098, now seen corresponding path program 1 times [2024-11-22 12:02:04,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:02:04,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370593728] [2024-11-22 12:02:04,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:02:04,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:02:05,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:02:06,059 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2024-11-22 12:02:06,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:02:06,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370593728] [2024-11-22 12:02:06,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370593728] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:02:06,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:02:06,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:02:06,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016963403] [2024-11-22 12:02:06,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:02:06,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:02:06,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:02:06,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:02:06,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:02:06,064 INFO L87 Difference]: Start difference. First operand 3073 states and 4593 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-22 12:02:06,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:02:06,944 INFO L93 Difference]: Finished difference Result 9012 states and 13455 transitions. [2024-11-22 12:02:06,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:02:06,945 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 537 [2024-11-22 12:02:06,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:02:06,973 INFO L225 Difference]: With dead ends: 9012 [2024-11-22 12:02:06,973 INFO L226 Difference]: Without dead ends: 6703 [2024-11-22 12:02:06,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:02:06,987 INFO L432 NwaCegarLoop]: 888 mSDtfsCounter, 766 mSDsluCounter, 988 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 1876 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:02:06,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [766 Valid, 1876 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:02:06,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6703 states. [2024-11-22 12:02:07,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6703 to 4641. [2024-11-22 12:02:07,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4641 states, 3989 states have (on average 1.4422160942592128) internal successors, (5753), 3998 states have internal predecessors, (5753), 581 states have call successors, (581), 70 states have call predecessors, (581), 70 states have return successors, (581), 572 states have call predecessors, (581), 581 states have call successors, (581) [2024-11-22 12:02:07,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4641 states to 4641 states and 6915 transitions. [2024-11-22 12:02:07,631 INFO L78 Accepts]: Start accepts. Automaton has 4641 states and 6915 transitions. Word has length 537 [2024-11-22 12:02:07,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:02:07,632 INFO L471 AbstractCegarLoop]: Abstraction has 4641 states and 6915 transitions. [2024-11-22 12:02:07,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-22 12:02:07,633 INFO L276 IsEmpty]: Start isEmpty. Operand 4641 states and 6915 transitions. [2024-11-22 12:02:07,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2024-11-22 12:02:07,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:02:07,642 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:02:07,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 12:02:07,643 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:02:07,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:02:07,643 INFO L85 PathProgramCache]: Analyzing trace with hash -959692092, now seen corresponding path program 1 times [2024-11-22 12:02:07,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:02:07,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562001651] [2024-11-22 12:02:07,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:02:07,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:02:07,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:02:08,863 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2024-11-22 12:02:08,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:02:08,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562001651] [2024-11-22 12:02:08,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562001651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:02:08,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:02:08,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:02:08,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455833997] [2024-11-22 12:02:08,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:02:08,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:02:08,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:02:08,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:02:08,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:02:08,867 INFO L87 Difference]: Start difference. First operand 4641 states and 6915 transitions. Second operand has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-22 12:02:10,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:02:10,254 INFO L93 Difference]: Finished difference Result 10954 states and 16138 transitions. [2024-11-22 12:02:10,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 12:02:10,255 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 537 [2024-11-22 12:02:10,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:02:10,282 INFO L225 Difference]: With dead ends: 10954 [2024-11-22 12:02:10,282 INFO L226 Difference]: Without dead ends: 7593 [2024-11-22 12:02:10,297 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-22 12:02:10,297 INFO L432 NwaCegarLoop]: 899 mSDtfsCounter, 1714 mSDsluCounter, 3131 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 357 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1714 SdHoareTripleChecker+Valid, 4030 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 357 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 12:02:10,298 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1714 Valid, 4030 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [357 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 12:02:10,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7593 states. [2024-11-22 12:02:10,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7593 to 6199. [2024-11-22 12:02:11,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6199 states, 5236 states have (on average 1.4299083269671504) internal successors, (7487), 5251 states have internal predecessors, (7487), 857 states have call successors, (857), 105 states have call predecessors, (857), 105 states have return successors, (857), 842 states have call predecessors, (857), 857 states have call successors, (857) [2024-11-22 12:02:11,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6199 states to 6199 states and 9201 transitions. [2024-11-22 12:02:11,025 INFO L78 Accepts]: Start accepts. Automaton has 6199 states and 9201 transitions. Word has length 537 [2024-11-22 12:02:11,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:02:11,026 INFO L471 AbstractCegarLoop]: Abstraction has 6199 states and 9201 transitions. [2024-11-22 12:02:11,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-22 12:02:11,027 INFO L276 IsEmpty]: Start isEmpty. Operand 6199 states and 9201 transitions. [2024-11-22 12:02:11,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 539 [2024-11-22 12:02:11,034 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:02:11,035 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:02:11,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-22 12:02:11,035 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:02:11,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:02:11,036 INFO L85 PathProgramCache]: Analyzing trace with hash -629699378, now seen corresponding path program 1 times [2024-11-22 12:02:11,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:02:11,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931137978] [2024-11-22 12:02:11,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:02:11,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:02:12,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat