./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-32.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-32.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 e3899bbf26c9ae805c010051d9160ff07bcd5d68dc29e4a0284125764e39562e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 00:23:24,517 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 00:23:24,586 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 00:23:24,591 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 00:23:24,592 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 00:23:24,623 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 00:23:24,623 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 00:23:24,624 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 00:23:24,625 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 00:23:24,626 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 00:23:24,626 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 00:23:24,627 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 00:23:24,628 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 00:23:24,628 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 00:23:24,630 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 00:23:24,630 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 00:23:24,631 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 00:23:24,631 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 00:23:24,632 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 00:23:24,632 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 00:23:24,632 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 00:23:24,634 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 00:23:24,635 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 00:23:24,635 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 00:23:24,635 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 00:23:24,635 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 00:23:24,636 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 00:23:24,636 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 00:23:24,636 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 00:23:24,636 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 00:23:24,637 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 00:23:24,637 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 00:23:24,637 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:23:24,637 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 00:23:24,638 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 00:23:24,638 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 00:23:24,639 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 00:23:24,640 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 00:23:24,640 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 00:23:24,640 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 00:23:24,640 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 00:23:24,641 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 00:23:24,641 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3899bbf26c9ae805c010051d9160ff07bcd5d68dc29e4a0284125764e39562e [2024-11-19 00:23:24,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 00:23:24,951 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 00:23:24,955 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 00:23:24,956 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 00:23:24,956 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 00:23:24,957 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-32.i [2024-11-19 00:23:26,303 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 00:23:26,508 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 00:23:26,509 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-32.i [2024-11-19 00:23:26,517 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/caba55009/4ce77f350bc648378b16095f93fe3d47/FLAG44fc3519a [2024-11-19 00:23:26,534 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/caba55009/4ce77f350bc648378b16095f93fe3d47 [2024-11-19 00:23:26,537 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 00:23:26,538 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 00:23:26,540 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 00:23:26,540 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 00:23:26,545 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 00:23:26,546 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:23:26" (1/1) ... [2024-11-19 00:23:26,549 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cb6a6ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:23:26, skipping insertion in model container [2024-11-19 00:23:26,550 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:23:26" (1/1) ... [2024-11-19 00:23:26,573 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 00:23:26,739 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-32.i[913,926] [2024-11-19 00:23:26,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:23:26,795 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 00:23:26,808 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-32.i[913,926] [2024-11-19 00:23:26,830 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:23:26,849 INFO L204 MainTranslator]: Completed translation [2024-11-19 00:23:26,849 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:23:26 WrapperNode [2024-11-19 00:23:26,849 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 00:23:26,851 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 00:23:26,851 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 00:23:26,851 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 00:23:26,858 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:23:26" (1/1) ... [2024-11-19 00:23:26,875 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:23:26" (1/1) ... [2024-11-19 00:23:26,909 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 111 [2024-11-19 00:23:26,910 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 00:23:26,914 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 00:23:26,914 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 00:23:26,914 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 00:23:26,926 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:23:26" (1/1) ... [2024-11-19 00:23:26,926 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:23:26" (1/1) ... [2024-11-19 00:23:26,929 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:23:26" (1/1) ... [2024-11-19 00:23:26,945 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]. [2024-11-19 00:23:26,946 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:23:26" (1/1) ... [2024-11-19 00:23:26,946 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:23:26" (1/1) ... [2024-11-19 00:23:26,952 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:23:26" (1/1) ... [2024-11-19 00:23:26,956 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:23:26" (1/1) ... [2024-11-19 00:23:26,958 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:23:26" (1/1) ... [2024-11-19 00:23:26,959 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:23:26" (1/1) ... [2024-11-19 00:23:26,962 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 00:23:26,963 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 00:23:26,963 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 00:23:26,964 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 00:23:26,965 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:23:26" (1/1) ... [2024-11-19 00:23:26,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:23:26,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:23:27,004 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 00:23:27,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 00:23:27,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 00:23:27,066 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 00:23:27,067 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 00:23:27,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 00:23:27,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 00:23:27,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 00:23:27,170 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 00:23:27,173 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 00:23:27,467 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-19 00:23:27,467 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 00:23:27,481 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 00:23:27,482 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 00:23:27,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:23:27 BoogieIcfgContainer [2024-11-19 00:23:27,482 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 00:23:27,484 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 00:23:27,484 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 00:23:27,487 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 00:23:27,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 12:23:26" (1/3) ... [2024-11-19 00:23:27,487 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c1abe6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:23:27, skipping insertion in model container [2024-11-19 00:23:27,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:23:26" (2/3) ... [2024-11-19 00:23:27,488 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c1abe6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:23:27, skipping insertion in model container [2024-11-19 00:23:27,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:23:27" (3/3) ... [2024-11-19 00:23:27,489 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-32.i [2024-11-19 00:23:27,503 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 00:23:27,503 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 00:23:27,567 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 00:23:27,573 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;@8b4ede6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 00:23:27,574 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 00:23:27,578 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 35 states have internal predecessors, (46), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-19 00:23:27,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-19 00:23:27,593 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:23:27,594 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:23:27,595 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:23:27,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:23:27,601 INFO L85 PathProgramCache]: Analyzing trace with hash 385929245, now seen corresponding path program 1 times [2024-11-19 00:23:27,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:23:27,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966135416] [2024-11-19 00:23:27,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:23:27,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:23:27,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:23:28,205 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 00:23:28,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:23:28,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966135416] [2024-11-19 00:23:28,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966135416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:23:28,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:23:28,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:23:28,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026075020] [2024-11-19 00:23:28,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:23:28,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:23:28,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:23:28,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:23:28,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:23:28,244 INFO L87 Difference]: Start difference. First operand has 55 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 35 states have internal predecessors, (46), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 00:23:28,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:23:28,447 INFO L93 Difference]: Finished difference Result 162 states and 287 transitions. [2024-11-19 00:23:28,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:23:28,451 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 113 [2024-11-19 00:23:28,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:23:28,461 INFO L225 Difference]: With dead ends: 162 [2024-11-19 00:23:28,461 INFO L226 Difference]: Without dead ends: 110 [2024-11-19 00:23:28,464 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 [2024-11-19 00:23:28,467 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 72 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:23:28,468 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 206 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:23:28,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-19 00:23:28,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 97. [2024-11-19 00:23:28,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 58 states have (on average 1.2586206896551724) internal successors, (73), 58 states have internal predecessors, (73), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-19 00:23:28,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 145 transitions. [2024-11-19 00:23:28,543 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 145 transitions. Word has length 113 [2024-11-19 00:23:28,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:23:28,544 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 145 transitions. [2024-11-19 00:23:28,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 00:23:28,545 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 145 transitions. [2024-11-19 00:23:28,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-19 00:23:28,551 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:23:28,552 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:23:28,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 00:23:28,552 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:23:28,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:23:28,554 INFO L85 PathProgramCache]: Analyzing trace with hash -294129125, now seen corresponding path program 1 times [2024-11-19 00:23:28,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:23:28,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911323550] [2024-11-19 00:23:28,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:23:28,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:23:28,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:23:32,708 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 00:23:32,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:23:32,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911323550] [2024-11-19 00:23:32,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911323550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:23:32,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:23:32,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 00:23:32,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57497406] [2024-11-19 00:23:32,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:23:32,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 00:23:32,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:23:32,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 00:23:32,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:23:32,716 INFO L87 Difference]: Start difference. First operand 97 states and 145 transitions. Second operand has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-19 00:23:33,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:23:33,977 INFO L93 Difference]: Finished difference Result 121 states and 171 transitions. [2024-11-19 00:23:33,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 00:23:33,978 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 113 [2024-11-19 00:23:33,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:23:33,980 INFO L225 Difference]: With dead ends: 121 [2024-11-19 00:23:33,980 INFO L226 Difference]: Without dead ends: 119 [2024-11-19 00:23:33,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2024-11-19 00:23:33,982 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 136 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:23:33,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 416 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:23:33,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-19 00:23:34,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 102. [2024-11-19 00:23:34,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 63 states have (on average 1.253968253968254) internal successors, (79), 63 states have internal predecessors, (79), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-19 00:23:34,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 151 transitions. [2024-11-19 00:23:34,010 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 151 transitions. Word has length 113 [2024-11-19 00:23:34,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:23:34,010 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 151 transitions. [2024-11-19 00:23:34,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-19 00:23:34,011 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 151 transitions. [2024-11-19 00:23:34,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-19 00:23:34,015 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:23:34,015 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:23:34,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 00:23:34,016 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:23:34,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:23:34,017 INFO L85 PathProgramCache]: Analyzing trace with hash -933556435, now seen corresponding path program 1 times [2024-11-19 00:23:34,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:23:34,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396461833] [2024-11-19 00:23:34,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:23:34,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:23:34,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:23:36,719 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 00:23:36,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:23:36,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396461833] [2024-11-19 00:23:36,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396461833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:23:36,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:23:36,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 00:23:36,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344550014] [2024-11-19 00:23:36,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:23:36,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 00:23:36,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:23:36,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 00:23:36,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:23:36,724 INFO L87 Difference]: Start difference. First operand 102 states and 151 transitions. Second operand has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 00:23:37,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:23:37,953 INFO L93 Difference]: Finished difference Result 151 states and 208 transitions. [2024-11-19 00:23:37,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-19 00:23:37,954 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 114 [2024-11-19 00:23:37,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:23:37,956 INFO L225 Difference]: With dead ends: 151 [2024-11-19 00:23:37,956 INFO L226 Difference]: Without dead ends: 149 [2024-11-19 00:23:37,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2024-11-19 00:23:37,957 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 113 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 00:23:37,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 418 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 00:23:37,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-11-19 00:23:37,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 109. [2024-11-19 00:23:37,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 70 states have (on average 1.2714285714285714) internal successors, (89), 70 states have internal predecessors, (89), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-19 00:23:37,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 161 transitions. [2024-11-19 00:23:37,982 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 161 transitions. Word has length 114 [2024-11-19 00:23:37,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:23:37,982 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 161 transitions. [2024-11-19 00:23:37,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 00:23:37,983 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 161 transitions. [2024-11-19 00:23:37,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-19 00:23:37,984 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:23:37,985 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:23:37,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 00:23:37,985 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:23:37,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:23:37,986 INFO L85 PathProgramCache]: Analyzing trace with hash 36486516, now seen corresponding path program 1 times [2024-11-19 00:23:37,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:23:37,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903676141] [2024-11-19 00:23:37,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:23:37,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:23:38,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:23:39,399 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 00:23:39,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:23:39,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903676141] [2024-11-19 00:23:39,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903676141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:23:39,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:23:39,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 00:23:39,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916649345] [2024-11-19 00:23:39,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:23:39,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 00:23:39,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:23:39,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 00:23:39,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:23:39,403 INFO L87 Difference]: Start difference. First operand 109 states and 161 transitions. Second operand has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 00:23:39,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:23:39,903 INFO L93 Difference]: Finished difference Result 139 states and 194 transitions. [2024-11-19 00:23:39,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 00:23:39,904 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 114 [2024-11-19 00:23:39,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:23:39,906 INFO L225 Difference]: With dead ends: 139 [2024-11-19 00:23:39,906 INFO L226 Difference]: Without dead ends: 137 [2024-11-19 00:23:39,906 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-19 00:23:39,907 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 96 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:23:39,908 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 383 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:23:39,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-19 00:23:39,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 109. [2024-11-19 00:23:39,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 70 states have (on average 1.2714285714285714) internal successors, (89), 70 states have internal predecessors, (89), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-19 00:23:39,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 161 transitions. [2024-11-19 00:23:39,921 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 161 transitions. Word has length 114 [2024-11-19 00:23:39,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:23:39,922 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 161 transitions. [2024-11-19 00:23:39,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 00:23:39,922 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 161 transitions. [2024-11-19 00:23:39,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-19 00:23:39,924 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:23:39,924 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:23:39,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 00:23:39,925 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:23:39,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:23:39,925 INFO L85 PathProgramCache]: Analyzing trace with hash 886190736, now seen corresponding path program 1 times [2024-11-19 00:23:39,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:23:39,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125820214] [2024-11-19 00:23:39,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:23:39,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:23:39,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:23:42,360 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 00:23:42,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:23:42,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125820214] [2024-11-19 00:23:42,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125820214] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:23:42,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:23:42,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-19 00:23:42,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780940874] [2024-11-19 00:23:42,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:23:42,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 00:23:42,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:23:42,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 00:23:42,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-19 00:23:42,363 INFO L87 Difference]: Start difference. First operand 109 states and 161 transitions. Second operand has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 13 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 00:23:43,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:23:43,636 INFO L93 Difference]: Finished difference Result 144 states and 201 transitions. [2024-11-19 00:23:43,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-19 00:23:43,637 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 13 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 115 [2024-11-19 00:23:43,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:23:43,639 INFO L225 Difference]: With dead ends: 144 [2024-11-19 00:23:43,639 INFO L226 Difference]: Without dead ends: 142 [2024-11-19 00:23:43,640 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=166, Invalid=484, Unknown=0, NotChecked=0, Total=650 [2024-11-19 00:23:43,640 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 117 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:23:43,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 391 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:23:43,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-19 00:23:43,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 111. [2024-11-19 00:23:43,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 72 states have (on average 1.2916666666666667) internal successors, (93), 72 states have internal predecessors, (93), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-19 00:23:43,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 165 transitions. [2024-11-19 00:23:43,654 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 165 transitions. Word has length 115 [2024-11-19 00:23:43,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:23:43,655 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 165 transitions. [2024-11-19 00:23:43,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 13 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 00:23:43,655 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 165 transitions. [2024-11-19 00:23:43,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-19 00:23:43,656 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:23:43,657 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:23:43,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 00:23:43,657 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:23:43,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:23:43,658 INFO L85 PathProgramCache]: Analyzing trace with hash -2084428143, now seen corresponding path program 1 times [2024-11-19 00:23:43,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:23:43,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671779341] [2024-11-19 00:23:43,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:23:43,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:23:43,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:23:44,751 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 00:23:44,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:23:44,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671779341] [2024-11-19 00:23:44,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671779341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:23:44,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:23:44,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-19 00:23:44,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584381578] [2024-11-19 00:23:44,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:23:44,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 00:23:44,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:23:44,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 00:23:44,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-19 00:23:44,754 INFO L87 Difference]: Start difference. First operand 111 states and 165 transitions. Second operand has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 00:23:45,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:23:45,357 INFO L93 Difference]: Finished difference Result 298 states and 422 transitions. [2024-11-19 00:23:45,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-19 00:23:45,358 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 115 [2024-11-19 00:23:45,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:23:45,360 INFO L225 Difference]: With dead ends: 298 [2024-11-19 00:23:45,360 INFO L226 Difference]: Without dead ends: 190 [2024-11-19 00:23:45,361 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=127, Invalid=379, Unknown=0, NotChecked=0, Total=506 [2024-11-19 00:23:45,362 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 197 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:23:45,362 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 499 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:23:45,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-19 00:23:45,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 121. [2024-11-19 00:23:45,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 82 states have (on average 1.3170731707317074) internal successors, (108), 82 states have internal predecessors, (108), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-19 00:23:45,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 180 transitions. [2024-11-19 00:23:45,375 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 180 transitions. Word has length 115 [2024-11-19 00:23:45,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:23:45,376 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 180 transitions. [2024-11-19 00:23:45,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 00:23:45,376 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 180 transitions. [2024-11-19 00:23:45,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-19 00:23:45,377 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:23:45,378 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:23:45,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 00:23:45,378 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:23:45,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:23:45,379 INFO L85 PathProgramCache]: Analyzing trace with hash -309420781, now seen corresponding path program 1 times [2024-11-19 00:23:45,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:23:45,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347461497] [2024-11-19 00:23:45,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:23:45,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:23:45,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:23:47,294 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 00:23:47,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:23:47,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347461497] [2024-11-19 00:23:47,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347461497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:23:47,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:23:47,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 00:23:47,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385860945] [2024-11-19 00:23:47,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:23:47,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 00:23:47,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:23:47,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 00:23:47,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:23:47,297 INFO L87 Difference]: Start difference. First operand 121 states and 180 transitions. Second operand has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 00:23:48,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:23:48,172 INFO L93 Difference]: Finished difference Result 167 states and 227 transitions. [2024-11-19 00:23:48,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-19 00:23:48,173 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 115 [2024-11-19 00:23:48,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:23:48,174 INFO L225 Difference]: With dead ends: 167 [2024-11-19 00:23:48,174 INFO L226 Difference]: Without dead ends: 165 [2024-11-19 00:23:48,175 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-19 00:23:48,175 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 125 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:23:48,176 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 367 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:23:48,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-11-19 00:23:48,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 121. [2024-11-19 00:23:48,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 82 states have (on average 1.3170731707317074) internal successors, (108), 82 states have internal predecessors, (108), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-19 00:23:48,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 180 transitions. [2024-11-19 00:23:48,200 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 180 transitions. Word has length 115 [2024-11-19 00:23:48,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:23:48,200 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 180 transitions. [2024-11-19 00:23:48,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 00:23:48,201 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 180 transitions. [2024-11-19 00:23:48,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-19 00:23:48,203 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:23:48,203 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:23:48,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 00:23:48,204 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:23:48,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:23:48,204 INFO L85 PathProgramCache]: Analyzing trace with hash -598251145, now seen corresponding path program 1 times [2024-11-19 00:23:48,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:23:48,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607013704] [2024-11-19 00:23:48,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:23:48,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:23:48,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:23:49,380 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 00:23:49,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:23:49,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607013704] [2024-11-19 00:23:49,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607013704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:23:49,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:23:49,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 00:23:49,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116771244] [2024-11-19 00:23:49,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:23:49,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 00:23:49,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:23:49,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 00:23:49,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:23:49,384 INFO L87 Difference]: Start difference. First operand 121 states and 180 transitions. Second operand has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 00:23:50,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:23:50,125 INFO L93 Difference]: Finished difference Result 198 states and 263 transitions. [2024-11-19 00:23:50,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-19 00:23:50,125 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 116 [2024-11-19 00:23:50,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:23:50,127 INFO L225 Difference]: With dead ends: 198 [2024-11-19 00:23:50,127 INFO L226 Difference]: Without dead ends: 196 [2024-11-19 00:23:50,127 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-19 00:23:50,128 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 183 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:23:50,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 519 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:23:50,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-11-19 00:23:50,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 122. [2024-11-19 00:23:50,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 83 states have (on average 1.3253012048192772) internal successors, (110), 83 states have internal predecessors, (110), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-19 00:23:50,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 182 transitions. [2024-11-19 00:23:50,148 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 182 transitions. Word has length 116 [2024-11-19 00:23:50,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:23:50,149 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 182 transitions. [2024-11-19 00:23:50,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 00:23:50,149 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 182 transitions. [2024-11-19 00:23:50,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-19 00:23:50,150 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:23:50,150 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:23:50,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 00:23:50,151 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:23:50,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:23:50,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1407597771, now seen corresponding path program 1 times [2024-11-19 00:23:50,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:23:50,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671848920] [2024-11-19 00:23:50,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:23:50,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:23:50,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:23:51,553 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 00:23:51,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:23:51,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671848920] [2024-11-19 00:23:51,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671848920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:23:51,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:23:51,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-19 00:23:51,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259821606] [2024-11-19 00:23:51,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:23:51,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 00:23:51,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:23:51,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 00:23:51,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-19 00:23:51,556 INFO L87 Difference]: Start difference. First operand 122 states and 182 transitions. Second operand has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 00:23:52,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:23:52,685 INFO L93 Difference]: Finished difference Result 193 states and 258 transitions. [2024-11-19 00:23:52,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-19 00:23:52,686 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 116 [2024-11-19 00:23:52,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:23:52,687 INFO L225 Difference]: With dead ends: 193 [2024-11-19 00:23:52,687 INFO L226 Difference]: Without dead ends: 191 [2024-11-19 00:23:52,688 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=255, Invalid=801, Unknown=0, NotChecked=0, Total=1056 [2024-11-19 00:23:52,688 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 168 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:23:52,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 487 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:23:52,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-11-19 00:23:52,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 124. [2024-11-19 00:23:52,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 85 states have (on average 1.3294117647058823) internal successors, (113), 85 states have internal predecessors, (113), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-19 00:23:52,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 185 transitions. [2024-11-19 00:23:52,708 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 185 transitions. Word has length 116 [2024-11-19 00:23:52,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:23:52,710 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 185 transitions. [2024-11-19 00:23:52,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 00:23:52,712 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 185 transitions. [2024-11-19 00:23:52,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-19 00:23:52,713 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:23:52,713 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:23:52,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 00:23:52,714 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:23:52,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:23:52,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1602400120, now seen corresponding path program 1 times [2024-11-19 00:23:52,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:23:52,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529272935] [2024-11-19 00:23:52,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:23:52,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:23:52,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:23:54,425 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-19 00:23:54,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:23:54,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529272935] [2024-11-19 00:23:54,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529272935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:23:54,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:23:54,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 00:23:54,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525093587] [2024-11-19 00:23:54,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:23:54,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 00:23:54,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:23:54,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 00:23:54,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:23:54,428 INFO L87 Difference]: Start difference. First operand 124 states and 185 transitions. Second operand has 12 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 00:23:55,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:23:55,404 INFO L93 Difference]: Finished difference Result 167 states and 230 transitions. [2024-11-19 00:23:55,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-19 00:23:55,405 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 117 [2024-11-19 00:23:55,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:23:55,406 INFO L225 Difference]: With dead ends: 167 [2024-11-19 00:23:55,406 INFO L226 Difference]: Without dead ends: 165 [2024-11-19 00:23:55,407 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=167, Invalid=339, Unknown=0, NotChecked=0, Total=506 [2024-11-19 00:23:55,407 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 106 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:23:55,407 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 414 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:23:55,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-11-19 00:23:55,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 125. [2024-11-19 00:23:55,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 86 states have (on average 1.3372093023255813) internal successors, (115), 86 states have internal predecessors, (115), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-19 00:23:55,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 187 transitions. [2024-11-19 00:23:55,417 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 187 transitions. Word has length 117 [2024-11-19 00:23:55,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:23:55,418 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 187 transitions. [2024-11-19 00:23:55,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-19 00:23:55,419 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 187 transitions. [2024-11-19 00:23:55,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-11-19 00:23:55,423 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:23:55,423 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:23:55,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 00:23:55,423 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:23:55,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:23:55,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1723789679, now seen corresponding path program 1 times [2024-11-19 00:23:55,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:23:55,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983106964] [2024-11-19 00:23:55,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:23:55,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:23:55,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:23:55,542 INFO L134 CoverageAnalysis]: Checked inductivity of 2557 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-11-19 00:23:55,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:23:55,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983106964] [2024-11-19 00:23:55,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983106964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:23:55,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:23:55,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:23:55,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683380284] [2024-11-19 00:23:55,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:23:55,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:23:55,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:23:55,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:23:55,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:23:55,544 INFO L87 Difference]: Start difference. First operand 125 states and 187 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2024-11-19 00:23:55,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:23:55,612 INFO L93 Difference]: Finished difference Result 182 states and 271 transitions. [2024-11-19 00:23:55,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:23:55,613 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 224 [2024-11-19 00:23:55,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:23:55,614 INFO L225 Difference]: With dead ends: 182 [2024-11-19 00:23:55,614 INFO L226 Difference]: Without dead ends: 118 [2024-11-19 00:23:55,615 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 [2024-11-19 00:23:55,618 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 55 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:23:55,618 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 70 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:23:55,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-19 00:23:55,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2024-11-19 00:23:55,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 79 states have (on average 1.2911392405063291) internal successors, (102), 79 states have internal predecessors, (102), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-19 00:23:55,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 174 transitions. [2024-11-19 00:23:55,629 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 174 transitions. Word has length 224 [2024-11-19 00:23:55,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:23:55,631 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 174 transitions. [2024-11-19 00:23:55,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2024-11-19 00:23:55,632 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 174 transitions. [2024-11-19 00:23:55,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-11-19 00:23:55,634 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:23:55,634 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:23:55,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 00:23:55,634 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:23:55,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:23:55,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1891119247, now seen corresponding path program 1 times [2024-11-19 00:23:55,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:23:55,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433706082] [2024-11-19 00:23:55,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:23:55,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:23:55,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:23:57,988 INFO L134 CoverageAnalysis]: Checked inductivity of 2557 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 2540 trivial. 0 not checked. [2024-11-19 00:23:57,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:23:57,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433706082] [2024-11-19 00:23:57,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433706082] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:23:57,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624950931] [2024-11-19 00:23:57,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:23:57,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:23:57,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:23:57,991 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:23:57,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 00:23:58,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:23:58,098 INFO L255 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 00:23:58,113 INFO L278 TraceCheckSpWp]: Computing forward predicates...