./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-4.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-4.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 86050a320677a833f953e3d24f630a372e53eb7ac1e89a394e20853921226e93 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 12:01:26,440 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 12:01:26,544 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 12:01:26,549 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 12:01:26,553 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 12:01:26,589 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 12:01:26,589 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 12:01:26,590 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 12:01:26,591 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 12:01:26,592 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 12:01:26,593 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 12:01:26,594 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 12:01:26,595 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 12:01:26,595 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 12:01:26,596 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 12:01:26,596 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 12:01:26,597 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 12:01:26,597 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 12:01:26,597 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 12:01:26,598 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 12:01:26,598 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 12:01:26,598 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 12:01:26,599 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 12:01:26,599 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 12:01:26,599 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 12:01:26,600 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 12:01:26,600 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 12:01:26,600 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 12:01:26,601 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 12:01:26,601 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 12:01:26,601 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 12:01:26,602 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 12:01:26,602 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:01:26,602 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 12:01:26,603 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 12:01:26,603 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 12:01:26,603 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 12:01:26,604 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 12:01:26,604 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 12:01:26,604 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 12:01:26,604 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 12:01:26,605 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 12:01:26,605 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86050a320677a833f953e3d24f630a372e53eb7ac1e89a394e20853921226e93 [2024-11-22 12:01:26,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 12:01:26,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 12:01:26,930 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 12:01:26,931 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 12:01:26,932 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 12:01:26,933 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-4.i [2024-11-22 12:01:28,411 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 12:01:28,721 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 12:01:28,722 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-4.i [2024-11-22 12:01:28,748 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/608736586/f21e14ea1e30435bb6512c759a97498b/FLAGb2aa1de22 [2024-11-22 12:01:29,002 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/608736586/f21e14ea1e30435bb6512c759a97498b [2024-11-22 12:01:29,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 12:01:29,008 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 12:01:29,011 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 12:01:29,011 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 12:01:29,017 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 12:01:29,018 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:01:29" (1/1) ... [2024-11-22 12:01:29,019 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b21cb24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:01:29, skipping insertion in model container [2024-11-22 12:01:29,019 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:01:29" (1/1) ... [2024-11-22 12:01:29,086 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 12:01:29,275 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-4.i[915,928] [2024-11-22 12:01:29,544 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:01:29,561 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 12:01:29,578 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-4.i[915,928] [2024-11-22 12:01:29,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:01:29,776 INFO L204 MainTranslator]: Completed translation [2024-11-22 12:01:29,777 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:01:29 WrapperNode [2024-11-22 12:01:29,777 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 12:01:29,779 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 12:01:29,779 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 12:01:29,779 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 12:01:29,786 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:01:29" (1/1) ... [2024-11-22 12:01:29,822 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:01:29" (1/1) ... [2024-11-22 12:01:29,969 INFO L138 Inliner]: procedures = 26, calls = 74, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 624 [2024-11-22 12:01:29,969 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 12:01:29,970 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 12:01:29,970 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 12:01:29,971 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 12:01:29,982 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:01:29" (1/1) ... [2024-11-22 12:01:29,982 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:01:29" (1/1) ... [2024-11-22 12:01:30,010 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:01:29" (1/1) ... [2024-11-22 12:01:30,070 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 12:01:30,071 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:01:29" (1/1) ... [2024-11-22 12:01:30,071 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:01:29" (1/1) ... [2024-11-22 12:01:30,106 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:01:29" (1/1) ... [2024-11-22 12:01:30,111 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:01:29" (1/1) ... [2024-11-22 12:01:30,133 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:01:29" (1/1) ... [2024-11-22 12:01:30,144 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:01:29" (1/1) ... [2024-11-22 12:01:30,163 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 12:01:30,165 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 12:01:30,165 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 12:01:30,166 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 12:01:30,167 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:01:29" (1/1) ... [2024-11-22 12:01:30,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:01:30,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:01:30,203 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 12:01:30,210 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 12:01:30,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 12:01:30,259 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 12:01:30,260 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 12:01:30,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 12:01:30,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 12:01:30,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 12:01:30,388 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 12:01:30,390 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 12:01:31,740 INFO L? ?]: Removed 91 outVars from TransFormulas that were not future-live. [2024-11-22 12:01:31,740 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 12:01:31,763 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 12:01:31,764 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 12:01:31,764 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:01:31 BoogieIcfgContainer [2024-11-22 12:01:31,764 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 12:01:31,769 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 12:01:31,770 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 12:01:31,773 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 12:01:31,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:01:29" (1/3) ... [2024-11-22 12:01:31,774 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7242630c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:01:31, skipping insertion in model container [2024-11-22 12:01:31,774 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:01:29" (2/3) ... [2024-11-22 12:01:31,775 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7242630c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:01:31, skipping insertion in model container [2024-11-22 12:01:31,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:01:31" (3/3) ... [2024-11-22 12:01:31,778 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-4.i [2024-11-22 12:01:31,796 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 12:01:31,796 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 12:01:31,883 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 12:01:31,893 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;@3036f0e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 12:01:31,893 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 12:01:31,900 INFO L276 IsEmpty]: Start isEmpty. Operand has 242 states, 178 states have (on average 1.5449438202247192) internal successors, (275), 179 states have internal predecessors, (275), 61 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-22 12:01:31,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2024-11-22 12:01:31,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:01:31,931 INFO L215 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:01:31,932 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:01:31,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:01:31,939 INFO L85 PathProgramCache]: Analyzing trace with hash -375888651, now seen corresponding path program 1 times [2024-11-22 12:01:31,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:01:31,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039084634] [2024-11-22 12:01:31,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:01:31,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:01:32,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:01:32,738 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-22 12:01:32,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:01:32,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039084634] [2024-11-22 12:01:32,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039084634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:01:32,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:01:32,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 12:01:32,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301164612] [2024-11-22 12:01:32,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:01:32,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 12:01:32,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:01:32,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 12:01:32,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 12:01:32,784 INFO L87 Difference]: Start difference. First operand has 242 states, 178 states have (on average 1.5449438202247192) internal successors, (275), 179 states have internal predecessors, (275), 61 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 2 states, 2 states have (on average 63.0) internal successors, (126), 2 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-22 12:01:32,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:01:32,837 INFO L93 Difference]: Finished difference Result 475 states and 845 transitions. [2024-11-22 12:01:32,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 12:01:32,841 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 63.0) internal successors, (126), 2 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 428 [2024-11-22 12:01:32,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:01:32,855 INFO L225 Difference]: With dead ends: 475 [2024-11-22 12:01:32,855 INFO L226 Difference]: Without dead ends: 236 [2024-11-22 12:01:32,860 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 12:01:32,863 INFO L432 NwaCegarLoop]: 385 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, 385 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 12:01:32,864 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:01:32,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-11-22 12:01:32,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2024-11-22 12:01:32,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 173 states have (on average 1.5202312138728324) internal successors, (263), 173 states have internal predecessors, (263), 61 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-22 12:01:32,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 385 transitions. [2024-11-22 12:01:32,932 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 385 transitions. Word has length 428 [2024-11-22 12:01:32,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:01:32,936 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 385 transitions. [2024-11-22 12:01:32,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 63.0) internal successors, (126), 2 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-22 12:01:32,936 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 385 transitions. [2024-11-22 12:01:32,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2024-11-22 12:01:32,947 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:01:32,947 INFO L215 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:01:32,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 12:01:32,947 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:01:32,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:01:32,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1242613229, now seen corresponding path program 1 times [2024-11-22 12:01:32,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:01:32,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396711848] [2024-11-22 12:01:32,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:01:32,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:01:33,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:01:33,509 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-22 12:01:33,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:01:33,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396711848] [2024-11-22 12:01:33,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396711848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:01:33,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:01:33,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 12:01:33,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307641647] [2024-11-22 12:01:33,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:01:33,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 12:01:33,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:01:33,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 12:01:33,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:01:33,517 INFO L87 Difference]: Start difference. First operand 236 states and 385 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-22 12:01:33,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:01:33,752 INFO L93 Difference]: Finished difference Result 583 states and 952 transitions. [2024-11-22 12:01:33,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 12:01:33,753 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 428 [2024-11-22 12:01:33,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:01:33,761 INFO L225 Difference]: With dead ends: 583 [2024-11-22 12:01:33,762 INFO L226 Difference]: Without dead ends: 350 [2024-11-22 12:01:33,764 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 12:01:33,766 INFO L432 NwaCegarLoop]: 381 mSDtfsCounter, 168 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:01:33,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 731 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:01:33,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-11-22 12:01:33,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 347. [2024-11-22 12:01:33,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 279 states have (on average 1.5448028673835126) internal successors, (431), 280 states have internal predecessors, (431), 65 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-22 12:01:33,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 561 transitions. [2024-11-22 12:01:33,828 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 561 transitions. Word has length 428 [2024-11-22 12:01:33,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:01:33,831 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 561 transitions. [2024-11-22 12:01:33,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-22 12:01:33,833 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 561 transitions. [2024-11-22 12:01:33,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2024-11-22 12:01:33,844 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:01:33,847 INFO L215 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:01:33,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 12:01:33,847 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:01:33,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:01:33,848 INFO L85 PathProgramCache]: Analyzing trace with hash -806774613, now seen corresponding path program 1 times [2024-11-22 12:01:33,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:01:33,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7948065] [2024-11-22 12:01:33,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:01:33,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:01:34,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:01:35,163 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-22 12:01:35,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:01:35,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7948065] [2024-11-22 12:01:35,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7948065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:01:35,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:01:35,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:01:35,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088700667] [2024-11-22 12:01:35,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:01:35,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:01:35,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:01:35,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:01:35,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:01:35,170 INFO L87 Difference]: Start difference. First operand 347 states and 561 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-22 12:01:35,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:01:35,596 INFO L93 Difference]: Finished difference Result 1019 states and 1650 transitions. [2024-11-22 12:01:35,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:01:35,599 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 428 [2024-11-22 12:01:35,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:01:35,611 INFO L225 Difference]: With dead ends: 1019 [2024-11-22 12:01:35,612 INFO L226 Difference]: Without dead ends: 675 [2024-11-22 12:01:35,614 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 12:01:35,617 INFO L432 NwaCegarLoop]: 381 mSDtfsCounter, 293 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 1132 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:01:35,620 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 1132 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:01:35,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2024-11-22 12:01:35,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 479. [2024-11-22 12:01:35,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 348 states have (on average 1.4827586206896552) internal successors, (516), 349 states have internal predecessors, (516), 126 states have call successors, (126), 4 states have call predecessors, (126), 4 states have return successors, (126), 125 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-22 12:01:35,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 768 transitions. [2024-11-22 12:01:35,719 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 768 transitions. Word has length 428 [2024-11-22 12:01:35,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:01:35,722 INFO L471 AbstractCegarLoop]: Abstraction has 479 states and 768 transitions. [2024-11-22 12:01:35,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-22 12:01:35,723 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 768 transitions. [2024-11-22 12:01:35,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2024-11-22 12:01:35,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:01:35,730 INFO L215 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:01:35,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 12:01:35,730 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:01:35,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:01:35,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1632221929, now seen corresponding path program 1 times [2024-11-22 12:01:35,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:01:35,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585856646] [2024-11-22 12:01:35,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:01:35,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:01:35,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:01:36,629 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-22 12:01:36,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:01:36,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585856646] [2024-11-22 12:01:36,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585856646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:01:36,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:01:36,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:01:36,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937458177] [2024-11-22 12:01:36,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:01:36,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:01:36,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:01:36,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:01:36,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:01:36,633 INFO L87 Difference]: Start difference. First operand 479 states and 768 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-22 12:01:36,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:01:36,998 INFO L93 Difference]: Finished difference Result 1026 states and 1658 transitions. [2024-11-22 12:01:37,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:01:37,003 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 428 [2024-11-22 12:01:37,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:01:37,008 INFO L225 Difference]: With dead ends: 1026 [2024-11-22 12:01:37,010 INFO L226 Difference]: Without dead ends: 675 [2024-11-22 12:01:37,014 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 12:01:37,015 INFO L432 NwaCegarLoop]: 381 mSDtfsCounter, 328 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 1132 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:01:37,015 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 1132 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:01:37,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2024-11-22 12:01:37,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 479. [2024-11-22 12:01:37,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 348 states have (on average 1.4798850574712643) internal successors, (515), 349 states have internal predecessors, (515), 126 states have call successors, (126), 4 states have call predecessors, (126), 4 states have return successors, (126), 125 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-22 12:01:37,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 767 transitions. [2024-11-22 12:01:37,084 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 767 transitions. Word has length 428 [2024-11-22 12:01:37,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:01:37,085 INFO L471 AbstractCegarLoop]: Abstraction has 479 states and 767 transitions. [2024-11-22 12:01:37,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-22 12:01:37,086 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 767 transitions. [2024-11-22 12:01:37,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2024-11-22 12:01:37,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:01:37,095 INFO L215 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:01:37,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 12:01:37,095 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:01:37,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:01:37,096 INFO L85 PathProgramCache]: Analyzing trace with hash -276235861, now seen corresponding path program 1 times [2024-11-22 12:01:37,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:01:37,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882865447] [2024-11-22 12:01:37,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:01:37,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:01:38,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:01:38,991 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-22 12:01:38,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:01:38,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882865447] [2024-11-22 12:01:38,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882865447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:01:38,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:01:38,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:01:38,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090181085] [2024-11-22 12:01:38,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:01:38,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:01:38,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:01:38,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:01:38,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:01:38,996 INFO L87 Difference]: Start difference. First operand 479 states and 767 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-22 12:01:39,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:01:39,155 INFO L93 Difference]: Finished difference Result 1044 states and 1676 transitions. [2024-11-22 12:01:39,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:01:39,156 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 428 [2024-11-22 12:01:39,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:01:39,162 INFO L225 Difference]: With dead ends: 1044 [2024-11-22 12:01:39,163 INFO L226 Difference]: Without dead ends: 700 [2024-11-22 12:01:39,164 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 12:01:39,167 INFO L432 NwaCegarLoop]: 388 mSDtfsCounter, 360 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:01:39,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 969 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:01:39,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2024-11-22 12:01:39,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 487. [2024-11-22 12:01:39,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 355 states have (on average 1.4704225352112676) internal successors, (522), 356 states have internal predecessors, (522), 126 states have call successors, (126), 5 states have call predecessors, (126), 5 states have return successors, (126), 125 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-22 12:01:39,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 774 transitions. [2024-11-22 12:01:39,212 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 774 transitions. Word has length 428 [2024-11-22 12:01:39,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:01:39,213 INFO L471 AbstractCegarLoop]: Abstraction has 487 states and 774 transitions. [2024-11-22 12:01:39,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-22 12:01:39,214 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 774 transitions. [2024-11-22 12:01:39,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2024-11-22 12:01:39,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:01:39,220 INFO L215 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:01:39,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 12:01:39,221 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:01:39,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:01:39,221 INFO L85 PathProgramCache]: Analyzing trace with hash -235561111, now seen corresponding path program 1 times [2024-11-22 12:01:39,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:01:39,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124954698] [2024-11-22 12:01:39,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:01:39,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:01:39,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:01:40,830 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-22 12:01:40,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:01:40,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124954698] [2024-11-22 12:01:40,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124954698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:01:40,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:01:40,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:01:40,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281034690] [2024-11-22 12:01:40,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:01:40,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:01:40,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:01:40,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:01:40,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:01:40,835 INFO L87 Difference]: Start difference. First operand 487 states and 774 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-22 12:01:40,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:01:40,995 INFO L93 Difference]: Finished difference Result 1167 states and 1856 transitions. [2024-11-22 12:01:40,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:01:40,997 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 428 [2024-11-22 12:01:40,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:01:41,005 INFO L225 Difference]: With dead ends: 1167 [2024-11-22 12:01:41,005 INFO L226 Difference]: Without dead ends: 815 [2024-11-22 12:01:41,007 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 12:01:41,008 INFO L432 NwaCegarLoop]: 390 mSDtfsCounter, 234 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 1121 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:01:41,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 1121 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:01:41,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2024-11-22 12:01:41,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 585. [2024-11-22 12:01:41,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 453 states have (on average 1.5165562913907285) internal successors, (687), 454 states have internal predecessors, (687), 126 states have call successors, (126), 5 states have call predecessors, (126), 5 states have return successors, (126), 125 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-22 12:01:41,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 939 transitions. [2024-11-22 12:01:41,051 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 939 transitions. Word has length 428 [2024-11-22 12:01:41,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:01:41,052 INFO L471 AbstractCegarLoop]: Abstraction has 585 states and 939 transitions. [2024-11-22 12:01:41,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-22 12:01:41,053 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 939 transitions. [2024-11-22 12:01:41,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2024-11-22 12:01:41,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:01:41,059 INFO L215 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:01:41,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 12:01:41,060 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:01:41,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:01:41,060 INFO L85 PathProgramCache]: Analyzing trace with hash 187140715, now seen corresponding path program 1 times [2024-11-22 12:01:41,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:01:41,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132987053] [2024-11-22 12:01:41,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:01:41,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:01:43,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:01:44,303 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-22 12:01:44,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:01:44,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132987053] [2024-11-22 12:01:44,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132987053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:01:44,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:01:44,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:01:44,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862954813] [2024-11-22 12:01:44,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:01:44,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:01:44,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:01:44,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:01:44,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:01:44,308 INFO L87 Difference]: Start difference. First operand 585 states and 939 transitions. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-22 12:01:44,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:01:44,833 INFO L93 Difference]: Finished difference Result 1720 states and 2790 transitions. [2024-11-22 12:01:44,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:01:44,834 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 428 [2024-11-22 12:01:44,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:01:44,842 INFO L225 Difference]: With dead ends: 1720 [2024-11-22 12:01:44,842 INFO L226 Difference]: Without dead ends: 1270 [2024-11-22 12:01:44,844 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:01:44,845 INFO L432 NwaCegarLoop]: 373 mSDtfsCounter, 581 mSDsluCounter, 1242 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 581 SdHoareTripleChecker+Valid, 1615 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:01:44,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [581 Valid, 1615 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:01:44,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1270 states. [2024-11-22 12:01:44,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1270 to 1033. [2024-11-22 12:01:44,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1033 states, 833 states have (on average 1.5354141656662665) internal successors, (1279), 835 states have internal predecessors, (1279), 191 states have call successors, (191), 8 states have call predecessors, (191), 8 states have return successors, (191), 189 states have call predecessors, (191), 191 states have call successors, (191) [2024-11-22 12:01:44,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1661 transitions. [2024-11-22 12:01:44,925 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1661 transitions. Word has length 428 [2024-11-22 12:01:44,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:01:44,925 INFO L471 AbstractCegarLoop]: Abstraction has 1033 states and 1661 transitions. [2024-11-22 12:01:44,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-22 12:01:44,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1661 transitions. [2024-11-22 12:01:44,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2024-11-22 12:01:44,933 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:01:44,934 INFO L215 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:01:44,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 12:01:44,934 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:01:44,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:01:44,935 INFO L85 PathProgramCache]: Analyzing trace with hash 479818800, now seen corresponding path program 1 times [2024-11-22 12:01:44,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:01:44,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843822652] [2024-11-22 12:01:44,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:01:44,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:01:47,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:01:48,445 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 12 proven. 168 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2024-11-22 12:01:48,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:01:48,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843822652] [2024-11-22 12:01:48,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843822652] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:01:48,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [592616770] [2024-11-22 12:01:48,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:01:48,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:01:48,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:01:48,451 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 12:01:48,452 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 12:01:48,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:01:48,854 INFO L255 TraceCheckSpWp]: Trace formula consists of 1141 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 12:01:48,886 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:01:49,714 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 964 proven. 168 refuted. 0 times theorem prover too weak. 6188 trivial. 0 not checked. [2024-11-22 12:01:49,715 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 12:01:50,338 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 12 proven. 168 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2024-11-22 12:01:50,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [592616770] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 12:01:50,339 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 12:01:50,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-11-22 12:01:50,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790626526] [2024-11-22 12:01:50,339 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 12:01:50,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 12:01:50,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:01:50,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 12:01:50,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:01:50,342 INFO L87 Difference]: Start difference. First operand 1033 states and 1661 transitions. Second operand has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 2 states have call successors, (117), 2 states have call predecessors, (117), 4 states have return successors, (118), 2 states have call predecessors, (118), 2 states have call successors, (118) [2024-11-22 12:01:50,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:01:50,831 INFO L93 Difference]: Finished difference Result 1631 states and 2618 transitions. [2024-11-22 12:01:50,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 12:01:50,832 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 2 states have call successors, (117), 2 states have call predecessors, (117), 4 states have return successors, (118), 2 states have call predecessors, (118), 2 states have call successors, (118) Word has length 429 [2024-11-22 12:01:50,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:01:50,838 INFO L225 Difference]: With dead ends: 1631 [2024-11-22 12:01:50,838 INFO L226 Difference]: Without dead ends: 733 [2024-11-22 12:01:50,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 865 GetRequests, 855 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-11-22 12:01:50,842 INFO L432 NwaCegarLoop]: 304 mSDtfsCounter, 573 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 767 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:01:50,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [577 Valid, 767 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:01:50,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2024-11-22 12:01:50,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 721. [2024-11-22 12:01:50,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 528 states have (on average 1.4659090909090908) internal successors, (774), 528 states have internal predecessors, (774), 183 states have call successors, (183), 9 states have call predecessors, (183), 9 states have return successors, (183), 183 states have call predecessors, (183), 183 states have call successors, (183) [2024-11-22 12:01:50,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 1140 transitions. [2024-11-22 12:01:50,909 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 1140 transitions. Word has length 429 [2024-11-22 12:01:50,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:01:50,909 INFO L471 AbstractCegarLoop]: Abstraction has 721 states and 1140 transitions. [2024-11-22 12:01:50,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 2 states have call successors, (117), 2 states have call predecessors, (117), 4 states have return successors, (118), 2 states have call predecessors, (118), 2 states have call successors, (118) [2024-11-22 12:01:50,910 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 1140 transitions. [2024-11-22 12:01:50,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2024-11-22 12:01:50,916 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:01:50,917 INFO L215 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:01:50,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 12:01:51,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:01:51,122 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:01:51,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:01:51,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1295439810, now seen corresponding path program 1 times [2024-11-22 12:01:51,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:01:51,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470400578] [2024-11-22 12:01:51,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:01:51,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:01:53,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:01:53,533 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 18 proven. 162 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2024-11-22 12:01:53,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:01:53,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470400578] [2024-11-22 12:01:53,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470400578] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:01:53,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785704589] [2024-11-22 12:01:53,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:01:53,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:01:53,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:01:53,538 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 12:01:53,545 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 12:01:53,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:01:53,992 INFO L255 TraceCheckSpWp]: Trace formula consists of 1141 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 12:01:54,001 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:01:54,720 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 1368 proven. 162 refuted. 0 times theorem prover too weak. 5790 trivial. 0 not checked. [2024-11-22 12:01:54,721 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 12:01:55,290 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 18 proven. 162 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2024-11-22 12:01:55,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [785704589] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 12:01:55,291 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 12:01:55,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-11-22 12:01:55,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122669257] [2024-11-22 12:01:55,291 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 12:01:55,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 12:01:55,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:01:55,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 12:01:55,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:01:55,295 INFO L87 Difference]: Start difference. First operand 721 states and 1140 transitions. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 2 states have call successors, (115), 2 states have call predecessors, (115), 4 states have return successors, (116), 2 states have call predecessors, (116), 2 states have call successors, (116) [2024-11-22 12:01:55,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:01:55,710 INFO L93 Difference]: Finished difference Result 1229 states and 1926 transitions. [2024-11-22 12:01:55,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 12:01:55,711 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 2 states have call successors, (115), 2 states have call predecessors, (115), 4 states have return successors, (116), 2 states have call predecessors, (116), 2 states have call successors, (116) Word has length 430 [2024-11-22 12:01:55,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:01:55,717 INFO L225 Difference]: With dead ends: 1229 [2024-11-22 12:01:55,717 INFO L226 Difference]: Without dead ends: 643 [2024-11-22 12:01:55,719 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 866 GetRequests, 857 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-11-22 12:01:55,721 INFO L432 NwaCegarLoop]: 302 mSDtfsCounter, 391 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:01:55,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 780 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:01:55,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2024-11-22 12:01:55,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 631. [2024-11-22 12:01:55,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 435 states have (on average 1.4068965517241379) internal successors, (612), 435 states have internal predecessors, (612), 183 states have call successors, (183), 12 states have call predecessors, (183), 12 states have return successors, (183), 183 states have call predecessors, (183), 183 states have call successors, (183) [2024-11-22 12:01:55,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 978 transitions. [2024-11-22 12:01:55,768 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 978 transitions. Word has length 430 [2024-11-22 12:01:55,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:01:55,769 INFO L471 AbstractCegarLoop]: Abstraction has 631 states and 978 transitions. [2024-11-22 12:01:55,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 2 states have call successors, (115), 2 states have call predecessors, (115), 4 states have return successors, (116), 2 states have call predecessors, (116), 2 states have call successors, (116) [2024-11-22 12:01:55,769 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 978 transitions. [2024-11-22 12:01:55,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2024-11-22 12:01:55,772 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:01:55,773 INFO L215 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:01:55,785 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 12:01:55,977 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,SelfDestructingSolverStorable8 [2024-11-22 12:01:55,978 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:01:55,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:01:55,978 INFO L85 PathProgramCache]: Analyzing trace with hash 844679940, now seen corresponding path program 1 times [2024-11-22 12:01:55,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:01:55,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442781742] [2024-11-22 12:01:55,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:01:55,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:01:56,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:01:56,196 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-22 12:01:56,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:01:56,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442781742] [2024-11-22 12:01:56,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442781742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:01:56,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:01:56,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 12:01:56,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100205430] [2024-11-22 12:01:56,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:01:56,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 12:01:56,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:01:56,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 12:01:56,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:01:56,202 INFO L87 Difference]: Start difference. First operand 631 states and 978 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-22 12:01:56,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:01:56,272 INFO L93 Difference]: Finished difference Result 1122 states and 1746 transitions. [2024-11-22 12:01:56,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 12:01:56,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 430 [2024-11-22 12:01:56,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:01:56,280 INFO L225 Difference]: With dead ends: 1122 [2024-11-22 12:01:56,280 INFO L226 Difference]: Without dead ends: 634 [2024-11-22 12:01:56,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:01:56,283 INFO L432 NwaCegarLoop]: 580 mSDtfsCounter, 365 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:01:56,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 792 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:01:56,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2024-11-22 12:01:56,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 631. [2024-11-22 12:01:56,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 435 states have (on average 1.4022988505747127) internal successors, (610), 435 states have internal predecessors, (610), 183 states have call successors, (183), 12 states have call predecessors, (183), 12 states have return successors, (183), 183 states have call predecessors, (183), 183 states have call successors, (183) [2024-11-22 12:01:56,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 976 transitions. [2024-11-22 12:01:56,332 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 976 transitions. Word has length 430 [2024-11-22 12:01:56,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:01:56,333 INFO L471 AbstractCegarLoop]: Abstraction has 631 states and 976 transitions. [2024-11-22 12:01:56,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-22 12:01:56,333 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 976 transitions. [2024-11-22 12:01:56,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2024-11-22 12:01:56,336 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:01:56,336 INFO L215 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:01:56,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 12:01:56,336 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:01:56,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:01:56,337 INFO L85 PathProgramCache]: Analyzing trace with hash 885354690, now seen corresponding path program 1 times [2024-11-22 12:01:56,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:01:56,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638330174] [2024-11-22 12:01:56,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:01:56,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:01:56,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:01:57,522 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-22 12:01:57,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:01:57,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638330174] [2024-11-22 12:01:57,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638330174] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:01:57,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:01:57,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:01:57,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591892464] [2024-11-22 12:01:57,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:01:57,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:01:57,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:01:57,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:01:57,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:01:57,525 INFO L87 Difference]: Start difference. First operand 631 states and 976 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-22 12:01:58,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:01:58,111 INFO L93 Difference]: Finished difference Result 1235 states and 1898 transitions. [2024-11-22 12:01:58,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:01:58,112 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 430 [2024-11-22 12:01:58,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:01:58,118 INFO L225 Difference]: With dead ends: 1235 [2024-11-22 12:01:58,118 INFO L226 Difference]: Without dead ends: 747 [2024-11-22 12:01:58,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 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 12:01:58,120 INFO L432 NwaCegarLoop]: 382 mSDtfsCounter, 253 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 12:01:58,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 902 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 12:01:58,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2024-11-22 12:01:58,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 647. [2024-11-22 12:01:58,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 450 states have (on average 1.4) internal successors, (630), 450 states have internal predecessors, (630), 183 states have call successors, (183), 13 states have call predecessors, (183), 13 states have return successors, (183), 183 states have call predecessors, (183), 183 states have call successors, (183) [2024-11-22 12:01:58,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 996 transitions. [2024-11-22 12:01:58,169 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 996 transitions. Word has length 430 [2024-11-22 12:01:58,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:01:58,169 INFO L471 AbstractCegarLoop]: Abstraction has 647 states and 996 transitions. [2024-11-22 12:01:58,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-22 12:01:58,170 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 996 transitions. [2024-11-22 12:01:58,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2024-11-22 12:01:58,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:01:58,173 INFO L215 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:01:58,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 12:01:58,173 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:01:58,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:01:58,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1108790016, now seen corresponding path program 1 times [2024-11-22 12:01:58,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:01:58,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977843851] [2024-11-22 12:01:58,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:01:58,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:02:00,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:02:00,842 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 126 proven. 54 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2024-11-22 12:02:00,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:02:00,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977843851] [2024-11-22 12:02:00,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977843851] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:02:00,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274704101] [2024-11-22 12:02:00,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:02:00,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:02:00,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:02:00,862 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 12:02:00,863 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 12:02:01,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:02:01,286 INFO L255 TraceCheckSpWp]: Trace formula consists of 1142 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-22 12:02:01,295 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:02:01,863 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 3340 proven. 60 refuted. 0 times theorem prover too weak. 3920 trivial. 0 not checked. [2024-11-22 12:02:01,863 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 12:02:02,520 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 120 proven. 60 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2024-11-22 12:02:02,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [274704101] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 12:02:02,521 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 12:02:02,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 16 [2024-11-22 12:02:02,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450596359] [2024-11-22 12:02:02,522 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 12:02:02,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-22 12:02:02,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:02:02,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-22 12:02:02,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-11-22 12:02:02,525 INFO L87 Difference]: Start difference. First operand 647 states and 996 transitions. Second operand has 16 states, 16 states have (on average 19.0625) internal successors, (305), 16 states have internal predecessors, (305), 4 states have call successors, (142), 2 states have call predecessors, (142), 4 states have return successors, (143), 4 states have call predecessors, (143), 4 states have call successors, (143) [2024-11-22 12:02:04,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:02:04,419 INFO L93 Difference]: Finished difference Result 1390 states and 2128 transitions. [2024-11-22 12:02:04,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-22 12:02:04,423 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 19.0625) internal successors, (305), 16 states have internal predecessors, (305), 4 states have call successors, (142), 2 states have call predecessors, (142), 4 states have return successors, (143), 4 states have call predecessors, (143), 4 states have call successors, (143) Word has length 430 [2024-11-22 12:02:04,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:02:04,430 INFO L225 Difference]: With dead ends: 1390 [2024-11-22 12:02:04,430 INFO L226 Difference]: Without dead ends: 890 [2024-11-22 12:02:04,433 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 895 GetRequests, 854 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=349, Invalid=1373, Unknown=0, NotChecked=0, Total=1722 [2024-11-22 12:02:04,433 INFO L432 NwaCegarLoop]: 350 mSDtfsCounter, 1798 mSDsluCounter, 2035 mSDsCounter, 0 mSdLazyCounter, 1353 mSolverCounterSat, 799 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1799 SdHoareTripleChecker+Valid, 2385 SdHoareTripleChecker+Invalid, 2152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 799 IncrementalHoareTripleChecker+Valid, 1353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:02:04,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1799 Valid, 2385 Invalid, 2152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [799 Valid, 1353 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-22 12:02:04,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2024-11-22 12:02:04,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 716. [2024-11-22 12:02:04,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 513 states have (on average 1.3859649122807018) internal successors, (711), 513 states have internal predecessors, (711), 183 states have call successors, (183), 19 states have call predecessors, (183), 19 states have return successors, (183), 183 states have call predecessors, (183), 183 states have call successors, (183) [2024-11-22 12:02:04,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 1077 transitions. [2024-11-22 12:02:04,500 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 1077 transitions. Word has length 430 [2024-11-22 12:02:04,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:02:04,501 INFO L471 AbstractCegarLoop]: Abstraction has 716 states and 1077 transitions. [2024-11-22 12:02:04,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 19.0625) internal successors, (305), 16 states have internal predecessors, (305), 4 states have call successors, (142), 2 states have call predecessors, (142), 4 states have return successors, (143), 4 states have call predecessors, (143), 4 states have call successors, (143) [2024-11-22 12:02:04,502 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 1077 transitions. [2024-11-22 12:02:04,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2024-11-22 12:02:04,504 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:02:04,504 INFO L215 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:02:04,520 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 12:02:04,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:02:04,706 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:02:04,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:02:04,706 INFO L85 PathProgramCache]: Analyzing trace with hash 163797340, now seen corresponding path program 1 times [2024-11-22 12:02:04,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:02:04,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206941183] [2024-11-22 12:02:04,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:02:04,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:02:05,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:02:07,941 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-22 12:02:07,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:02:07,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206941183] [2024-11-22 12:02:07,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206941183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:02:07,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:02:07,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 12:02:07,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380370626] [2024-11-22 12:02:07,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:02:07,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 12:02:07,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:02:07,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 12:02:07,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-22 12:02:07,947 INFO L87 Difference]: Start difference. First operand 716 states and 1077 transitions. Second operand has 11 states, 11 states have (on average 11.818181818181818) internal successors, (130), 11 states have internal predecessors, (130), 3 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) [2024-11-22 12:02:09,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:02:09,249 INFO L93 Difference]: Finished difference Result 1707 states and 2603 transitions. [2024-11-22 12:02:09,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 12:02:09,250 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.818181818181818) internal successors, (130), 11 states have internal predecessors, (130), 3 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) Word has length 432 [2024-11-22 12:02:09,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:02:09,258 INFO L225 Difference]: With dead ends: 1707 [2024-11-22 12:02:09,258 INFO L226 Difference]: Without dead ends: 1191 [2024-11-22 12:02:09,260 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-11-22 12:02:09,261 INFO L432 NwaCegarLoop]: 392 mSDtfsCounter, 1295 mSDsluCounter, 2110 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1295 SdHoareTripleChecker+Valid, 2502 SdHoareTripleChecker+Invalid, 1149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:02:09,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1295 Valid, 2502 Invalid, 1149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [295 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-22 12:02:09,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1191 states. [2024-11-22 12:02:09,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1191 to 861. [2024-11-22 12:02:09,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 658 states have (on average 1.4346504559270516) internal successors, (944), 658 states have internal predecessors, (944), 183 states have call successors, (183), 19 states have call predecessors, (183), 19 states have return successors, (183), 183 states have call predecessors, (183), 183 states have call successors, (183) [2024-11-22 12:02:09,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1310 transitions. [2024-11-22 12:02:09,343 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1310 transitions. Word has length 432 [2024-11-22 12:02:09,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:02:09,343 INFO L471 AbstractCegarLoop]: Abstraction has 861 states and 1310 transitions. [2024-11-22 12:02:09,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.818181818181818) internal successors, (130), 11 states have internal predecessors, (130), 3 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) [2024-11-22 12:02:09,344 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1310 transitions. [2024-11-22 12:02:09,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2024-11-22 12:02:09,346 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:02:09,347 INFO L215 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:02:09,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 12:02:09,347 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:02:09,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:02:09,348 INFO L85 PathProgramCache]: Analyzing trace with hash -803553314, now seen corresponding path program 1 times [2024-11-22 12:02:09,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:02:09,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587211265] [2024-11-22 12:02:09,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:02:09,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:02:10,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:02:13,327 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-22 12:02:13,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:02:13,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587211265] [2024-11-22 12:02:13,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587211265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:02:13,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:02:13,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 12:02:13,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770158616] [2024-11-22 12:02:13,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:02:13,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 12:02:13,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:02:13,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 12:02:13,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:02:13,329 INFO L87 Difference]: Start difference. First operand 861 states and 1310 transitions. Second operand has 9 states, 9 states have (on average 14.444444444444445) internal successors, (130), 9 states have internal predecessors, (130), 2 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2024-11-22 12:02:15,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:02:15,312 INFO L93 Difference]: Finished difference Result 2241 states and 3393 transitions. [2024-11-22 12:02:15,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 12:02:15,313 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.444444444444445) internal successors, (130), 9 states have internal predecessors, (130), 2 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 432 [2024-11-22 12:02:15,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:02:15,324 INFO L225 Difference]: With dead ends: 2241 [2024-11-22 12:02:15,325 INFO L226 Difference]: Without dead ends: 1725 [2024-11-22 12:02:15,328 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2024-11-22 12:02:15,328 INFO L432 NwaCegarLoop]: 614 mSDtfsCounter, 1083 mSDsluCounter, 2383 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 317 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1083 SdHoareTripleChecker+Valid, 2997 SdHoareTripleChecker+Invalid, 1107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 317 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-22 12:02:15,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1083 Valid, 2997 Invalid, 1107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [317 Valid, 790 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-22 12:02:15,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1725 states. [2024-11-22 12:02:15,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1725 to 1537. [2024-11-22 12:02:15,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1537 states, 1203 states have (on average 1.4497090606816292) internal successors, (1744), 1205 states have internal predecessors, (1744), 300 states have call successors, (300), 33 states have call predecessors, (300), 33 states have return successors, (300), 298 states have call predecessors, (300), 300 states have call successors, (300) [2024-11-22 12:02:15,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1537 states to 1537 states and 2344 transitions. [2024-11-22 12:02:15,461 INFO L78 Accepts]: Start accepts. Automaton has 1537 states and 2344 transitions. Word has length 432 [2024-11-22 12:02:15,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:02:15,462 INFO L471 AbstractCegarLoop]: Abstraction has 1537 states and 2344 transitions. [2024-11-22 12:02:15,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.444444444444445) internal successors, (130), 9 states have internal predecessors, (130), 2 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2024-11-22 12:02:15,462 INFO L276 IsEmpty]: Start isEmpty. Operand 1537 states and 2344 transitions. [2024-11-22 12:02:15,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2024-11-22 12:02:15,465 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:02:15,466 INFO L215 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:02:15,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 12:02:15,466 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:02:15,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:02:15,467 INFO L85 PathProgramCache]: Analyzing trace with hash -251889608, now seen corresponding path program 1 times [2024-11-22 12:02:15,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:02:15,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526340464] [2024-11-22 12:02:15,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:02:15,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:02:16,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat