./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-52.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-52.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 d2756a3afeabee0bd07615570da162530b76933ca347aab7efd24527f8af5fb3 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 22:38:19,487 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:38:19,576 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 22:38:19,581 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 22:38:19,583 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 22:38:19,608 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:38:19,608 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 22:38:19,608 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 22:38:19,609 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 22:38:19,611 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 22:38:19,611 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:38:19,612 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 22:38:19,612 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:38:19,614 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:38:19,614 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 22:38:19,614 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:38:19,615 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:38:19,616 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 22:38:19,616 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 22:38:19,618 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 22:38:19,618 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:38:19,618 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:38:19,619 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:38:19,619 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:38:19,619 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:38:19,619 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 22:38:19,620 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:38:19,620 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:38:19,620 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:38:19,620 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 22:38:19,621 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 22:38:19,622 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 22:38:19,622 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 22:38:19,622 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:38:19,622 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:38:19,623 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:38:19,623 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 22:38:19,623 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 22:38:19,623 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 22:38:19,624 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 22:38:19,624 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 22:38:19,624 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 22:38:19,624 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d2756a3afeabee0bd07615570da162530b76933ca347aab7efd24527f8af5fb3 [2024-11-08 22:38:19,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:38:19,876 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:38:19,879 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:38:19,880 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:38:19,880 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:38:19,881 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-52.i [2024-11-08 22:38:21,606 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:38:21,940 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:38:21,941 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-52.i [2024-11-08 22:38:21,954 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27a5e5bbd/e2904287a88446afb47d5d55edc0a218/FLAG297d9b094 [2024-11-08 22:38:22,207 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27a5e5bbd/e2904287a88446afb47d5d55edc0a218 [2024-11-08 22:38:22,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:38:22,210 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:38:22,211 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:38:22,211 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:38:22,224 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:38:22,225 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:38:22" (1/1) ... [2024-11-08 22:38:22,225 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cd35d3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:38:22, skipping insertion in model container [2024-11-08 22:38:22,225 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:38:22" (1/1) ... [2024-11-08 22:38:22,268 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:38:22,487 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_fillercode_fillercodestructure_filler-ps-co_file-52.i[919,932] [2024-11-08 22:38:22,538 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:38:22,548 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:38:22,556 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_fillercode_fillercodestructure_filler-ps-co_file-52.i[919,932] [2024-11-08 22:38:22,587 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:38:22,607 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:38:22,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:38:22 WrapperNode [2024-11-08 22:38:22,610 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:38:22,611 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:38:22,611 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:38:22,611 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:38:22,617 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:38:22" (1/1) ... [2024-11-08 22:38:22,626 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:38:22" (1/1) ... [2024-11-08 22:38:22,662 INFO L138 Inliner]: procedures = 26, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 206 [2024-11-08 22:38:22,663 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:38:22,663 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:38:22,664 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:38:22,664 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:38:22,672 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:38:22" (1/1) ... [2024-11-08 22:38:22,672 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:38:22" (1/1) ... [2024-11-08 22:38:22,675 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:38:22" (1/1) ... [2024-11-08 22:38:22,689 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 22:38:22,689 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:38:22" (1/1) ... [2024-11-08 22:38:22,689 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:38:22" (1/1) ... [2024-11-08 22:38:22,696 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:38:22" (1/1) ... [2024-11-08 22:38:22,699 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:38:22" (1/1) ... [2024-11-08 22:38:22,701 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:38:22" (1/1) ... [2024-11-08 22:38:22,703 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:38:22" (1/1) ... [2024-11-08 22:38:22,706 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:38:22,707 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:38:22,707 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:38:22,707 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:38:22,708 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:38:22" (1/1) ... [2024-11-08 22:38:22,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 22:38:22,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 22:38:22,742 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 22:38:22,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 22:38:22,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:38:22,784 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 22:38:22,784 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 22:38:22,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 22:38:22,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:38:22,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:38:22,853 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:38:22,855 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:38:23,335 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-08 22:38:23,335 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:38:23,346 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:38:23,346 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 22:38:23,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:38:23 BoogieIcfgContainer [2024-11-08 22:38:23,347 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:38:23,348 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 22:38:23,348 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 22:38:23,351 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 22:38:23,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 10:38:22" (1/3) ... [2024-11-08 22:38:23,352 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af04731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 10:38:23, skipping insertion in model container [2024-11-08 22:38:23,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:38:22" (2/3) ... [2024-11-08 22:38:23,352 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af04731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 10:38:23, skipping insertion in model container [2024-11-08 22:38:23,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:38:23" (3/3) ... [2024-11-08 22:38:23,353 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-co_file-52.i [2024-11-08 22:38:23,366 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 22:38:23,367 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 22:38:23,412 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 22:38:23,417 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;@79671401, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 22:38:23,417 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 22:38:23,420 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 63 states have (on average 1.4603174603174602) internal successors, (92), 64 states have internal predecessors, (92), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-08 22:38:23,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-08 22:38:23,430 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:38:23,431 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 22:38:23,431 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:38:23,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:38:23,436 INFO L85 PathProgramCache]: Analyzing trace with hash -417909114, now seen corresponding path program 1 times [2024-11-08 22:38:23,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:38:23,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115304465] [2024-11-08 22:38:23,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:38:23,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:38:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:23,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 22:38:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:23,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 22:38:23,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:23,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 22:38:23,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:23,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 22:38:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:23,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 22:38:23,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:23,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 22:38:23,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:23,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 22:38:23,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:23,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 22:38:23,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:23,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 22:38:23,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:23,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 22:38:23,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:23,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 22:38:23,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:23,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 22:38:23,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:23,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 22:38:23,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:23,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 22:38:23,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:23,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 22:38:23,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:23,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 22:38:23,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:23,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 22:38:23,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:23,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 22:38:23,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:23,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 22:38:23,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:23,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 22:38:23,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:23,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 22:38:23,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:23,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 22:38:23,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:23,901 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-08 22:38:23,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:38:23,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115304465] [2024-11-08 22:38:23,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115304465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:38:23,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:38:23,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 22:38:23,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986613712] [2024-11-08 22:38:23,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:38:23,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 22:38:23,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:38:23,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 22:38:23,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 22:38:23,932 INFO L87 Difference]: Start difference. First operand has 88 states, 63 states have (on average 1.4603174603174602) internal successors, (92), 64 states have internal predecessors, (92), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-08 22:38:23,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:38:23,955 INFO L93 Difference]: Finished difference Result 169 states and 288 transitions. [2024-11-08 22:38:23,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 22:38:23,957 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) Word has length 153 [2024-11-08 22:38:23,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:38:23,964 INFO L225 Difference]: With dead ends: 169 [2024-11-08 22:38:23,965 INFO L226 Difference]: Without dead ends: 84 [2024-11-08 22:38:23,968 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 22:38:23,971 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 22:38:23,971 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 22:38:23,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-08 22:38:24,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2024-11-08 22:38:24,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 60 states have (on average 1.4166666666666667) internal successors, (85), 60 states have internal predecessors, (85), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-08 22:38:24,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 129 transitions. [2024-11-08 22:38:24,004 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 129 transitions. Word has length 153 [2024-11-08 22:38:24,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:38:24,005 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 129 transitions. [2024-11-08 22:38:24,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-08 22:38:24,005 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 129 transitions. [2024-11-08 22:38:24,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-08 22:38:24,007 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:38:24,008 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 22:38:24,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 22:38:24,008 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:38:24,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:38:24,009 INFO L85 PathProgramCache]: Analyzing trace with hash -572067138, now seen corresponding path program 1 times [2024-11-08 22:38:24,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:38:24,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783388329] [2024-11-08 22:38:24,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:38:24,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:38:24,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 22:38:24,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 22:38:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 22:38:24,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 22:38:24,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 22:38:24,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 22:38:24,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 22:38:24,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 22:38:24,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 22:38:24,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 22:38:24,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 22:38:24,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 22:38:24,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 22:38:24,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 22:38:24,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 22:38:24,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 22:38:24,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 22:38:24,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 22:38:24,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 22:38:24,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 22:38:24,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 22:38:24,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 22:38:24,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,330 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-08 22:38:24,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:38:24,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783388329] [2024-11-08 22:38:24,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783388329] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:38:24,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:38:24,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 22:38:24,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927145924] [2024-11-08 22:38:24,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:38:24,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 22:38:24,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:38:24,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 22:38:24,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 22:38:24,333 INFO L87 Difference]: Start difference. First operand 84 states and 129 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-08 22:38:24,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:38:24,396 INFO L93 Difference]: Finished difference Result 246 states and 381 transitions. [2024-11-08 22:38:24,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 22:38:24,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 153 [2024-11-08 22:38:24,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:38:24,399 INFO L225 Difference]: With dead ends: 246 [2024-11-08 22:38:24,402 INFO L226 Difference]: Without dead ends: 165 [2024-11-08 22:38:24,403 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 22:38:24,403 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 82 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 22:38:24,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 265 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 22:38:24,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-11-08 22:38:24,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 162. [2024-11-08 22:38:24,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 115 states have (on average 1.4173913043478261) internal successors, (163), 115 states have internal predecessors, (163), 44 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-08 22:38:24,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 251 transitions. [2024-11-08 22:38:24,424 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 251 transitions. Word has length 153 [2024-11-08 22:38:24,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:38:24,425 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 251 transitions. [2024-11-08 22:38:24,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-08 22:38:24,425 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 251 transitions. [2024-11-08 22:38:24,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-08 22:38:24,426 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:38:24,427 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 22:38:24,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 22:38:24,427 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:38:24,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:38:24,427 INFO L85 PathProgramCache]: Analyzing trace with hash -347069248, now seen corresponding path program 1 times [2024-11-08 22:38:24,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:38:24,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86366708] [2024-11-08 22:38:24,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:38:24,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:38:24,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 22:38:24,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 22:38:24,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 22:38:24,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 22:38:24,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 22:38:24,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 22:38:24,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 22:38:24,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 22:38:24,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 22:38:24,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 22:38:24,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 22:38:24,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 22:38:24,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 22:38:24,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 22:38:24,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 22:38:24,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 22:38:24,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 22:38:24,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 22:38:24,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 22:38:24,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 22:38:24,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 22:38:24,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 22:38:24,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:24,759 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-08 22:38:24,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:38:24,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86366708] [2024-11-08 22:38:24,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86366708] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:38:24,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:38:24,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 22:38:24,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641247052] [2024-11-08 22:38:24,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:38:24,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 22:38:24,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:38:24,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 22:38:24,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 22:38:24,770 INFO L87 Difference]: Start difference. First operand 162 states and 251 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-08 22:38:24,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:38:24,839 INFO L93 Difference]: Finished difference Result 480 states and 747 transitions. [2024-11-08 22:38:24,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 22:38:24,840 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 154 [2024-11-08 22:38:24,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:38:24,847 INFO L225 Difference]: With dead ends: 480 [2024-11-08 22:38:24,847 INFO L226 Difference]: Without dead ends: 321 [2024-11-08 22:38:24,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 22:38:24,849 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 87 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 22:38:24,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 241 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 22:38:24,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2024-11-08 22:38:24,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2024-11-08 22:38:24,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 226 states have (on average 1.415929203539823) internal successors, (320), 226 states have internal predecessors, (320), 88 states have call successors, (88), 4 states have call predecessors, (88), 4 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2024-11-08 22:38:24,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 496 transitions. [2024-11-08 22:38:24,911 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 496 transitions. Word has length 154 [2024-11-08 22:38:24,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:38:24,911 INFO L471 AbstractCegarLoop]: Abstraction has 319 states and 496 transitions. [2024-11-08 22:38:24,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-08 22:38:24,912 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 496 transitions. [2024-11-08 22:38:24,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-08 22:38:24,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:38:24,917 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 22:38:24,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 22:38:24,918 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:38:24,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:38:24,918 INFO L85 PathProgramCache]: Analyzing trace with hash -803671258, now seen corresponding path program 1 times [2024-11-08 22:38:24,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:38:24,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438817402] [2024-11-08 22:38:24,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:38:24,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:38:25,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 22:38:25,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 22:38:25,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 22:38:25,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 22:38:25,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 22:38:25,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 22:38:25,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 22:38:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 22:38:25,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 22:38:25,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 22:38:25,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 22:38:25,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 22:38:25,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 22:38:25,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 22:38:25,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 22:38:25,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 22:38:25,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 22:38:25,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 22:38:25,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 22:38:25,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 22:38:25,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 22:38:25,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 22:38:25,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,507 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-08 22:38:25,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:38:25,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438817402] [2024-11-08 22:38:25,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438817402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:38:25,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:38:25,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 22:38:25,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140147957] [2024-11-08 22:38:25,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:38:25,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 22:38:25,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:38:25,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 22:38:25,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 22:38:25,511 INFO L87 Difference]: Start difference. First operand 319 states and 496 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-08 22:38:25,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:38:25,613 INFO L93 Difference]: Finished difference Result 697 states and 1085 transitions. [2024-11-08 22:38:25,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 22:38:25,614 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 155 [2024-11-08 22:38:25,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:38:25,617 INFO L225 Difference]: With dead ends: 697 [2024-11-08 22:38:25,618 INFO L226 Difference]: Without dead ends: 381 [2024-11-08 22:38:25,620 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 22:38:25,623 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 49 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 22:38:25,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 213 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 22:38:25,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-11-08 22:38:25,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 371. [2024-11-08 22:38:25,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 255 states have (on average 1.384313725490196) internal successors, (353), 255 states have internal predecessors, (353), 110 states have call successors, (110), 5 states have call predecessors, (110), 5 states have return successors, (110), 110 states have call predecessors, (110), 110 states have call successors, (110) [2024-11-08 22:38:25,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 573 transitions. [2024-11-08 22:38:25,671 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 573 transitions. Word has length 155 [2024-11-08 22:38:25,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:38:25,672 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 573 transitions. [2024-11-08 22:38:25,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-08 22:38:25,672 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 573 transitions. [2024-11-08 22:38:25,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-08 22:38:25,675 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:38:25,676 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 22:38:25,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 22:38:25,676 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:38:25,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:38:25,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1277742239, now seen corresponding path program 1 times [2024-11-08 22:38:25,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:38:25,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750822297] [2024-11-08 22:38:25,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:38:25,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:38:25,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 22:38:25,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 22:38:25,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 22:38:25,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 22:38:25,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 22:38:25,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 22:38:25,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 22:38:25,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 22:38:25,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 22:38:25,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 22:38:25,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 22:38:25,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 22:38:25,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 22:38:25,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 22:38:25,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 22:38:25,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 22:38:25,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 22:38:25,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 22:38:25,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 22:38:25,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 22:38:25,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 22:38:25,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 22:38:25,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:25,816 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-08 22:38:25,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:38:25,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750822297] [2024-11-08 22:38:25,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750822297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:38:25,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:38:25,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 22:38:25,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290942423] [2024-11-08 22:38:25,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:38:25,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 22:38:25,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:38:25,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 22:38:25,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 22:38:25,820 INFO L87 Difference]: Start difference. First operand 371 states and 573 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-08 22:38:25,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:38:25,874 INFO L93 Difference]: Finished difference Result 719 states and 1122 transitions. [2024-11-08 22:38:25,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 22:38:25,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 156 [2024-11-08 22:38:25,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:38:25,877 INFO L225 Difference]: With dead ends: 719 [2024-11-08 22:38:25,877 INFO L226 Difference]: Without dead ends: 403 [2024-11-08 22:38:25,878 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 22:38:25,878 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 11 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 22:38:25,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 239 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 22:38:25,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-11-08 22:38:25,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 379. [2024-11-08 22:38:25,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 263 states have (on average 1.3878326996197718) internal successors, (365), 263 states have internal predecessors, (365), 110 states have call successors, (110), 5 states have call predecessors, (110), 5 states have return successors, (110), 110 states have call predecessors, (110), 110 states have call successors, (110) [2024-11-08 22:38:25,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 585 transitions. [2024-11-08 22:38:25,920 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 585 transitions. Word has length 156 [2024-11-08 22:38:25,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:38:25,921 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 585 transitions. [2024-11-08 22:38:25,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-08 22:38:25,921 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 585 transitions. [2024-11-08 22:38:25,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-08 22:38:25,923 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:38:25,923 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 22:38:25,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 22:38:25,923 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:38:25,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:38:25,924 INFO L85 PathProgramCache]: Analyzing trace with hash -63484420, now seen corresponding path program 1 times [2024-11-08 22:38:25,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:38:25,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344481278] [2024-11-08 22:38:25,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:38:25,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:38:25,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 22:38:26,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 22:38:26,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 22:38:26,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 22:38:26,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 22:38:26,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 22:38:26,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 22:38:26,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 22:38:26,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 22:38:26,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 22:38:26,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 22:38:26,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 22:38:26,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 22:38:26,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 22:38:26,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 22:38:26,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 22:38:26,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 22:38:26,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 22:38:26,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 22:38:26,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 22:38:26,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 22:38:26,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 22:38:26,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,129 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-08 22:38:26,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:38:26,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344481278] [2024-11-08 22:38:26,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344481278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:38:26,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:38:26,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 22:38:26,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880747082] [2024-11-08 22:38:26,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:38:26,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 22:38:26,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:38:26,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 22:38:26,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 22:38:26,132 INFO L87 Difference]: Start difference. First operand 379 states and 585 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-08 22:38:26,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:38:26,186 INFO L93 Difference]: Finished difference Result 713 states and 1107 transitions. [2024-11-08 22:38:26,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 22:38:26,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 157 [2024-11-08 22:38:26,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:38:26,189 INFO L225 Difference]: With dead ends: 713 [2024-11-08 22:38:26,189 INFO L226 Difference]: Without dead ends: 389 [2024-11-08 22:38:26,190 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 22:38:26,190 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 47 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 22:38:26,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 230 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 22:38:26,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2024-11-08 22:38:26,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 380. [2024-11-08 22:38:26,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 264 states have (on average 1.3863636363636365) internal successors, (366), 264 states have internal predecessors, (366), 110 states have call successors, (110), 5 states have call predecessors, (110), 5 states have return successors, (110), 110 states have call predecessors, (110), 110 states have call successors, (110) [2024-11-08 22:38:26,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 586 transitions. [2024-11-08 22:38:26,215 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 586 transitions. Word has length 157 [2024-11-08 22:38:26,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:38:26,215 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 586 transitions. [2024-11-08 22:38:26,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-08 22:38:26,216 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 586 transitions. [2024-11-08 22:38:26,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-08 22:38:26,217 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:38:26,217 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 22:38:26,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 22:38:26,217 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:38:26,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:38:26,217 INFO L85 PathProgramCache]: Analyzing trace with hash -20546141, now seen corresponding path program 1 times [2024-11-08 22:38:26,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:38:26,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748518307] [2024-11-08 22:38:26,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:38:26,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:38:26,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 22:38:26,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 22:38:26,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 22:38:26,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 22:38:26,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 22:38:26,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 22:38:26,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 22:38:26,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 22:38:26,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 22:38:26,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 22:38:26,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 22:38:26,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 22:38:26,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 22:38:26,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 22:38:26,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 22:38:26,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 22:38:26,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 22:38:26,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 22:38:26,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 22:38:26,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 22:38:26,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 22:38:26,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 22:38:26,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:26,915 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-08 22:38:26,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:38:26,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748518307] [2024-11-08 22:38:26,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748518307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:38:26,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:38:26,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 22:38:26,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693651187] [2024-11-08 22:38:26,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:38:26,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 22:38:26,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:38:26,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 22:38:26,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 22:38:26,917 INFO L87 Difference]: Start difference. First operand 380 states and 586 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-08 22:38:27,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:38:27,147 INFO L93 Difference]: Finished difference Result 723 states and 1119 transitions. [2024-11-08 22:38:27,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 22:38:27,147 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 157 [2024-11-08 22:38:27,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:38:27,149 INFO L225 Difference]: With dead ends: 723 [2024-11-08 22:38:27,149 INFO L226 Difference]: Without dead ends: 387 [2024-11-08 22:38:27,150 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 22:38:27,151 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 52 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 22:38:27,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 367 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 22:38:27,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2024-11-08 22:38:27,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 380. [2024-11-08 22:38:27,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 264 states have (on average 1.3825757575757576) internal successors, (365), 264 states have internal predecessors, (365), 110 states have call successors, (110), 5 states have call predecessors, (110), 5 states have return successors, (110), 110 states have call predecessors, (110), 110 states have call successors, (110) [2024-11-08 22:38:27,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 585 transitions. [2024-11-08 22:38:27,196 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 585 transitions. Word has length 157 [2024-11-08 22:38:27,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:38:27,197 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 585 transitions. [2024-11-08 22:38:27,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-08 22:38:27,197 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 585 transitions. [2024-11-08 22:38:27,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-08 22:38:27,198 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:38:27,198 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 22:38:27,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 22:38:27,198 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:38:27,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:38:27,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1668397601, now seen corresponding path program 1 times [2024-11-08 22:38:27,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:38:27,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039344116] [2024-11-08 22:38:27,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:38:27,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:38:27,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:35,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 22:38:35,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:35,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 22:38:35,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:35,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 22:38:35,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:35,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 22:38:35,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:35,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 22:38:35,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:35,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 22:38:35,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:35,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 22:38:35,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:35,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 22:38:35,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:35,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 22:38:35,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:35,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 22:38:35,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:35,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 22:38:35,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:35,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 22:38:35,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:35,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 22:38:35,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:35,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 22:38:35,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:35,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 22:38:35,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:35,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 22:38:35,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:35,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 22:38:35,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:35,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 22:38:35,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:35,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 22:38:35,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:35,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 22:38:35,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:35,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 22:38:35,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:35,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 22:38:35,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:35,178 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-08 22:38:35,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:38:35,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039344116] [2024-11-08 22:38:35,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039344116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:38:35,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:38:35,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-08 22:38:35,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066467530] [2024-11-08 22:38:35,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:38:35,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 22:38:35,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:38:35,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 22:38:35,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-08 22:38:35,181 INFO L87 Difference]: Start difference. First operand 380 states and 585 transitions. Second operand has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 15 states have internal predecessors, (50), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-08 22:38:40,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:38:40,261 INFO L93 Difference]: Finished difference Result 714 states and 1069 transitions. [2024-11-08 22:38:40,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-08 22:38:40,262 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 15 states have internal predecessors, (50), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 157 [2024-11-08 22:38:40,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:38:40,266 INFO L225 Difference]: With dead ends: 714 [2024-11-08 22:38:40,266 INFO L226 Difference]: Without dead ends: 712 [2024-11-08 22:38:40,267 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 490 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=567, Invalid=1689, Unknown=0, NotChecked=0, Total=2256 [2024-11-08 22:38:40,267 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 406 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 22:38:40,267 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 735 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 22:38:40,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-11-08 22:38:40,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 573. [2024-11-08 22:38:40,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 411 states have (on average 1.391727493917275) internal successors, (572), 411 states have internal predecessors, (572), 154 states have call successors, (154), 7 states have call predecessors, (154), 7 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) [2024-11-08 22:38:40,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 880 transitions. [2024-11-08 22:38:40,301 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 880 transitions. Word has length 157 [2024-11-08 22:38:40,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:38:40,301 INFO L471 AbstractCegarLoop]: Abstraction has 573 states and 880 transitions. [2024-11-08 22:38:40,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 15 states have internal predecessors, (50), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-08 22:38:40,302 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 880 transitions. [2024-11-08 22:38:40,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-08 22:38:40,303 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:38:40,303 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 22:38:40,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 22:38:40,303 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:38:40,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:38:40,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1926563039, now seen corresponding path program 1 times [2024-11-08 22:38:40,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:38:40,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322306882] [2024-11-08 22:38:40,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:38:40,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:38:40,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:40,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 22:38:40,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:40,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 22:38:40,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:40,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 22:38:40,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:40,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 22:38:40,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:40,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 22:38:40,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:40,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 22:38:40,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:40,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 22:38:40,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:40,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 22:38:40,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:40,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 22:38:40,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:40,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 22:38:40,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:40,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 22:38:40,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:40,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 22:38:40,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:40,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 22:38:40,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:40,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 22:38:40,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:40,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 22:38:40,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:40,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 22:38:40,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:40,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 22:38:40,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:40,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 22:38:40,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:40,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 22:38:40,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:40,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 22:38:40,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:40,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 22:38:40,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:40,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 22:38:40,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:38:40,454 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-08 22:38:40,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:38:40,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322306882] [2024-11-08 22:38:40,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322306882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:38:40,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:38:40,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 22:38:40,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986919964] [2024-11-08 22:38:40,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:38:40,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 22:38:40,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:38:40,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 22:38:40,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 22:38:40,457 INFO L87 Difference]: Start difference. First operand 573 states and 880 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-08 22:38:40,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:38:40,561 INFO L93 Difference]: Finished difference Result 1213 states and 1876 transitions. [2024-11-08 22:38:40,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 22:38:40,562 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 157 [2024-11-08 22:38:40,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:38:40,565 INFO L225 Difference]: With dead ends: 1213 [2024-11-08 22:38:40,565 INFO L226 Difference]: Without dead ends: 696 [2024-11-08 22:38:40,566 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 22:38:40,568 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 142 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 22:38:40,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 502 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 22:38:40,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2024-11-08 22:38:40,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 496. [2024-11-08 22:38:40,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 357 states have (on average 1.3949579831932772) internal successors, (498), 357 states have internal predecessors, (498), 132 states have call successors, (132), 6 states have call predecessors, (132), 6 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132) [2024-11-08 22:38:40,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 762 transitions. [2024-11-08 22:38:40,608 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 762 transitions. Word has length 157 [2024-11-08 22:38:40,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:38:40,609 INFO L471 AbstractCegarLoop]: Abstraction has 496 states and 762 transitions. [2024-11-08 22:38:40,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-08 22:38:40,609 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 762 transitions. [2024-11-08 22:38:40,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-08 22:38:40,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:38:40,610 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 22:38:40,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 22:38:40,611 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:38:40,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:38:40,611 INFO L85 PathProgramCache]: Analyzing trace with hash 353835297, now seen corresponding path program 1 times [2024-11-08 22:38:40,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:38:40,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314533922] [2024-11-08 22:38:40,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:38:40,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:38:40,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat