./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-22.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d 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_loopvsstraightlinecode_100-while_file-22.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 ffde3abd1302fbd87206750d0310c01693ddf151d98835d8cfad33c14bb4faac --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 16:08:32,633 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 16:08:32,721 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 16:08:32,726 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 16:08:32,727 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 16:08:32,750 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 16:08:32,751 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 16:08:32,751 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 16:08:32,752 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 16:08:32,752 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 16:08:32,753 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 16:08:32,753 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 16:08:32,753 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 16:08:32,754 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 16:08:32,754 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 16:08:32,754 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 16:08:32,755 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 16:08:32,755 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 16:08:32,756 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 16:08:32,756 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 16:08:32,756 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 16:08:32,757 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 16:08:32,757 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 16:08:32,757 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 16:08:32,758 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 16:08:32,758 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 16:08:32,758 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 16:08:32,759 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 16:08:32,759 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 16:08:32,760 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 16:08:32,760 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 16:08:32,760 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 16:08:32,761 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 16:08:32,761 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 16:08:32,762 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 16:08:32,762 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 16:08:32,762 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 16:08:32,762 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 16:08:32,763 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 16:08:32,763 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 16:08:32,764 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 16:08:32,764 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 16:08:32,765 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ffde3abd1302fbd87206750d0310c01693ddf151d98835d8cfad33c14bb4faac [2024-11-16 16:08:33,039 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 16:08:33,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 16:08:33,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 16:08:33,082 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 16:08:33,083 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 16:08:33,084 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-22.i [2024-11-16 16:08:34,660 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 16:08:34,933 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 16:08:34,934 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-22.i [2024-11-16 16:08:34,945 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/677f94337/ef02f078378e4187a1ae99ac63851f83/FLAGbd2a7006b [2024-11-16 16:08:34,960 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/677f94337/ef02f078378e4187a1ae99ac63851f83 [2024-11-16 16:08:34,963 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 16:08:34,964 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 16:08:34,967 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 16:08:34,968 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 16:08:34,974 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 16:08:34,975 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:08:34" (1/1) ... [2024-11-16 16:08:34,975 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f612413 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:08:34, skipping insertion in model container [2024-11-16 16:08:34,976 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:08:34" (1/1) ... [2024-11-16 16:08:35,008 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 16:08:35,194 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_loopvsstraightlinecode_100-while_file-22.i[916,929] [2024-11-16 16:08:35,305 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 16:08:35,319 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 16:08:35,329 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_loopvsstraightlinecode_100-while_file-22.i[916,929] [2024-11-16 16:08:35,389 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 16:08:35,412 INFO L204 MainTranslator]: Completed translation [2024-11-16 16:08:35,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:08:35 WrapperNode [2024-11-16 16:08:35,413 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 16:08:35,414 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 16:08:35,414 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 16:08:35,414 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 16:08:35,421 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:08:35" (1/1) ... [2024-11-16 16:08:35,435 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:08:35" (1/1) ... [2024-11-16 16:08:35,484 INFO L138 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 256 [2024-11-16 16:08:35,484 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 16:08:35,485 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 16:08:35,485 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 16:08:35,485 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 16:08:35,497 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:08:35" (1/1) ... [2024-11-16 16:08:35,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:08:35" (1/1) ... [2024-11-16 16:08:35,503 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:08:35" (1/1) ... [2024-11-16 16:08:35,530 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]. [2024-11-16 16:08:35,531 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:08:35" (1/1) ... [2024-11-16 16:08:35,531 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:08:35" (1/1) ... [2024-11-16 16:08:35,552 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:08:35" (1/1) ... [2024-11-16 16:08:35,558 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:08:35" (1/1) ... [2024-11-16 16:08:35,564 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:08:35" (1/1) ... [2024-11-16 16:08:35,572 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:08:35" (1/1) ... [2024-11-16 16:08:35,582 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 16:08:35,586 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 16:08:35,586 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 16:08:35,586 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 16:08:35,587 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:08:35" (1/1) ... [2024-11-16 16:08:35,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 16:08:35,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 16:08:35,623 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) [2024-11-16 16:08:35,626 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 [2024-11-16 16:08:35,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 16:08:35,706 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 16:08:35,707 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 16:08:35,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 16:08:35,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 16:08:35,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 16:08:35,855 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 16:08:35,858 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 16:08:36,456 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L204: havoc property_#t~bitwise22#1;havoc property_#t~bitwise23#1;havoc property_#t~short24#1; [2024-11-16 16:08:36,514 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-16 16:08:36,515 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 16:08:36,548 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 16:08:36,551 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 16:08:36,552 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:08:36 BoogieIcfgContainer [2024-11-16 16:08:36,552 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 16:08:36,556 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 16:08:36,556 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 16:08:36,560 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 16:08:36,561 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:08:34" (1/3) ... [2024-11-16 16:08:36,562 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20b98e64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:08:36, skipping insertion in model container [2024-11-16 16:08:36,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:08:35" (2/3) ... [2024-11-16 16:08:36,564 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20b98e64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:08:36, skipping insertion in model container [2024-11-16 16:08:36,565 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:08:36" (3/3) ... [2024-11-16 16:08:36,567 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-while_file-22.i [2024-11-16 16:08:36,587 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 16:08:36,588 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 16:08:36,667 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 16:08:36,677 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;@519ade96, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 16:08:36,678 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 16:08:36,684 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 70 states have (on average 1.4142857142857144) internal successors, (99), 71 states have internal predecessors, (99), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-16 16:08:36,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-16 16:08:36,700 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:08:36,701 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:08:36,702 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:08:36,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:08:36,707 INFO L85 PathProgramCache]: Analyzing trace with hash 583675133, now seen corresponding path program 1 times [2024-11-16 16:08:36,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:08:36,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112841791] [2024-11-16 16:08:36,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:08:36,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:08:36,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:37,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:08:37,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:37,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:08:37,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:37,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:08:37,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:37,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:08:37,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:37,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:08:37,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:37,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:08:37,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:37,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:08:37,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:37,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:08:37,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:37,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:08:37,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:37,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:08:37,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:37,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:08:37,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:37,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:08:37,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:37,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:08:37,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:37,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 16:08:37,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:37,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 16:08:37,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:37,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 16:08:37,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:37,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 16:08:37,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:37,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 16:08:37,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:37,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 16:08:37,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:37,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 16:08:37,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:37,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 16:08:37,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:37,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 16:08:37,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:37,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-16 16:08:37,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:37,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-16 16:08:37,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:37,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 16:08:37,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:37,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 16:08:37,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:37,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-16 16:08:37,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:37,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-16 16:08:37,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:37,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-16 16:08:37,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:37,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-16 16:08:37,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:37,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-11-16 16:08:37,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:37,404 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-16 16:08:37,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:08:37,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112841791] [2024-11-16 16:08:37,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112841791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:08:37,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:08:37,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 16:08:37,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263157894] [2024-11-16 16:08:37,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:08:37,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 16:08:37,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:08:37,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 16:08:37,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 16:08:37,450 INFO L87 Difference]: Start difference. First operand has 104 states, 70 states have (on average 1.4142857142857144) internal successors, (99), 71 states have internal predecessors, (99), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-16 16:08:37,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:08:37,504 INFO L93 Difference]: Finished difference Result 200 states and 346 transitions. [2024-11-16 16:08:37,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 16:08:37,508 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) Word has length 201 [2024-11-16 16:08:37,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:08:37,521 INFO L225 Difference]: With dead ends: 200 [2024-11-16 16:08:37,522 INFO L226 Difference]: Without dead ends: 99 [2024-11-16 16:08:37,527 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 16:08:37,532 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 16:08:37,534 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 149 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 16:08:37,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-16 16:08:37,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-11-16 16:08:37,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 66 states have (on average 1.378787878787879) internal successors, (91), 66 states have internal predecessors, (91), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-16 16:08:37,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 153 transitions. [2024-11-16 16:08:37,591 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 153 transitions. Word has length 201 [2024-11-16 16:08:37,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:08:37,592 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 153 transitions. [2024-11-16 16:08:37,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-16 16:08:37,593 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 153 transitions. [2024-11-16 16:08:37,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-16 16:08:37,597 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:08:37,597 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:08:37,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 16:08:37,598 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:08:37,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:08:37,599 INFO L85 PathProgramCache]: Analyzing trace with hash -689999714, now seen corresponding path program 1 times [2024-11-16 16:08:37,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:08:37,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307223229] [2024-11-16 16:08:37,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:08:37,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:08:37,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:38,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:08:38,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:38,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:08:38,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:38,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:08:38,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:38,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:08:38,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:38,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:08:38,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:38,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:08:38,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:38,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:08:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:38,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:08:38,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:38,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:08:38,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:38,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:08:38,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:38,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:08:38,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:38,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:08:38,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:38,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:08:38,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:38,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 16:08:38,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:38,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 16:08:38,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:38,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 16:08:38,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:38,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 16:08:38,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:38,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 16:08:38,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:38,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 16:08:38,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:38,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 16:08:38,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:38,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 16:08:38,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:38,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 16:08:38,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:38,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-16 16:08:38,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:38,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-16 16:08:38,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:38,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 16:08:38,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:38,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 16:08:38,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:38,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-16 16:08:38,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:38,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-16 16:08:38,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:38,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-16 16:08:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:38,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-16 16:08:38,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:38,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-11-16 16:08:38,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:38,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-16 16:08:38,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:08:38,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307223229] [2024-11-16 16:08:38,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307223229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:08:38,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:08:38,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 16:08:38,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509495475] [2024-11-16 16:08:38,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:08:38,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 16:08:38,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:08:38,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 16:08:38,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 16:08:38,467 INFO L87 Difference]: Start difference. First operand 99 states and 153 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-16 16:08:38,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:08:38,949 INFO L93 Difference]: Finished difference Result 329 states and 510 transitions. [2024-11-16 16:08:38,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 16:08:38,950 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 201 [2024-11-16 16:08:38,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:08:38,955 INFO L225 Difference]: With dead ends: 329 [2024-11-16 16:08:38,956 INFO L226 Difference]: Without dead ends: 233 [2024-11-16 16:08:38,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-11-16 16:08:38,960 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 205 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 16:08:38,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 603 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 16:08:38,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-11-16 16:08:39,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 215. [2024-11-16 16:08:39,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 150 states have (on average 1.4133333333333333) internal successors, (212), 150 states have internal predecessors, (212), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-16 16:08:39,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 336 transitions. [2024-11-16 16:08:39,017 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 336 transitions. Word has length 201 [2024-11-16 16:08:39,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:08:39,018 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 336 transitions. [2024-11-16 16:08:39,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-16 16:08:39,019 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 336 transitions. [2024-11-16 16:08:39,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-16 16:08:39,022 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:08:39,022 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:08:39,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 16:08:39,023 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:08:39,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:08:39,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1632687124, now seen corresponding path program 1 times [2024-11-16 16:08:39,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:08:39,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745795585] [2024-11-16 16:08:39,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:08:39,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:08:39,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:39,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:08:39,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:39,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:08:39,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:39,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:08:39,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:39,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:08:39,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:39,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:08:39,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:39,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:08:39,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:39,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:08:39,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:39,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:08:39,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:39,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:08:39,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:39,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:08:39,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:39,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:08:39,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:39,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:08:39,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:39,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:08:39,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:39,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 16:08:39,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:39,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 16:08:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:39,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 16:08:39,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:39,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 16:08:39,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:39,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 16:08:39,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:39,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 16:08:39,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:39,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 16:08:39,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:39,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 16:08:39,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:39,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 16:08:39,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:39,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-16 16:08:39,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:39,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-16 16:08:39,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:39,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 16:08:39,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:39,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 16:08:39,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:39,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-16 16:08:39,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:39,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-16 16:08:39,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:39,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-16 16:08:39,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:39,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-16 16:08:39,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:39,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-11-16 16:08:39,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:39,478 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-16 16:08:39,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:08:39,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745795585] [2024-11-16 16:08:39,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745795585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:08:39,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:08:39,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 16:08:39,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666004865] [2024-11-16 16:08:39,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:08:39,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 16:08:39,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:08:39,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 16:08:39,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 16:08:39,485 INFO L87 Difference]: Start difference. First operand 215 states and 336 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-16 16:08:39,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:08:39,903 INFO L93 Difference]: Finished difference Result 579 states and 896 transitions. [2024-11-16 16:08:39,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 16:08:39,904 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 202 [2024-11-16 16:08:39,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:08:39,908 INFO L225 Difference]: With dead ends: 579 [2024-11-16 16:08:39,908 INFO L226 Difference]: Without dead ends: 367 [2024-11-16 16:08:39,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-16 16:08:39,911 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 187 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 16:08:39,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 637 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 16:08:39,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2024-11-16 16:08:39,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 308. [2024-11-16 16:08:39,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 211 states have (on average 1.3933649289099526) internal successors, (294), 211 states have internal predecessors, (294), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-16 16:08:39,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 480 transitions. [2024-11-16 16:08:39,969 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 480 transitions. Word has length 202 [2024-11-16 16:08:39,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:08:39,971 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 480 transitions. [2024-11-16 16:08:39,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-16 16:08:39,972 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 480 transitions. [2024-11-16 16:08:39,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-16 16:08:39,974 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:08:39,975 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:08:39,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 16:08:39,975 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:08:39,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:08:39,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1565680371, now seen corresponding path program 1 times [2024-11-16 16:08:39,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:08:39,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944733065] [2024-11-16 16:08:39,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:08:39,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:08:40,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:40,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:08:40,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:40,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:08:40,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:40,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:08:40,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:40,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:08:40,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:40,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:08:40,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:40,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:08:40,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:40,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:08:40,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:40,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:08:40,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:40,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:08:40,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:40,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:08:40,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:40,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:08:40,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:40,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:08:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:40,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:08:40,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:40,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 16:08:40,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:40,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 16:08:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:40,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 16:08:40,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:40,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 16:08:40,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:40,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 16:08:40,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:40,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 16:08:40,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:40,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 16:08:40,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:40,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 16:08:40,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:40,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 16:08:40,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:40,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-16 16:08:40,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:40,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-16 16:08:40,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:40,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 16:08:40,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:40,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 16:08:40,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:40,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-16 16:08:40,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:40,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-16 16:08:40,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:40,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-16 16:08:40,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:40,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-16 16:08:40,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:40,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-11-16 16:08:40,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:40,667 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-16 16:08:40,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:08:40,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944733065] [2024-11-16 16:08:40,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944733065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:08:40,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:08:40,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 16:08:40,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096224858] [2024-11-16 16:08:40,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:08:40,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 16:08:40,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:08:40,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 16:08:40,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 16:08:40,671 INFO L87 Difference]: Start difference. First operand 308 states and 480 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, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-16 16:08:40,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:08:40,974 INFO L93 Difference]: Finished difference Result 763 states and 1182 transitions. [2024-11-16 16:08:40,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 16:08:40,975 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, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 202 [2024-11-16 16:08:40,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:08:40,982 INFO L225 Difference]: With dead ends: 763 [2024-11-16 16:08:40,983 INFO L226 Difference]: Without dead ends: 458 [2024-11-16 16:08:40,985 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 16:08:40,987 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 123 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 16:08:40,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 403 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 16:08:40,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2024-11-16 16:08:41,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 416. [2024-11-16 16:08:41,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 287 states have (on average 1.4041811846689896) internal successors, (403), 287 states have internal predecessors, (403), 124 states have call successors, (124), 4 states have call predecessors, (124), 4 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-16 16:08:41,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 651 transitions. [2024-11-16 16:08:41,066 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 651 transitions. Word has length 202 [2024-11-16 16:08:41,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:08:41,067 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 651 transitions. [2024-11-16 16:08:41,068 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, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-16 16:08:41,068 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 651 transitions. [2024-11-16 16:08:41,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-16 16:08:41,071 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:08:41,072 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:08:41,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 16:08:41,072 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:08:41,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:08:41,073 INFO L85 PathProgramCache]: Analyzing trace with hash -518507932, now seen corresponding path program 1 times [2024-11-16 16:08:41,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:08:41,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247244070] [2024-11-16 16:08:41,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:08:41,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:08:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:41,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:08:41,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:41,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:08:41,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:41,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:08:41,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:41,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:08:41,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:41,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:08:41,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:41,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:08:41,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:41,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:08:41,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:41,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:08:41,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:41,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:08:41,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:41,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:08:41,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:41,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:08:41,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:41,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:08:41,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:41,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:08:41,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:41,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 16:08:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:41,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 16:08:41,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:41,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 16:08:41,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:41,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 16:08:41,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:41,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 16:08:41,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:41,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 16:08:41,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:41,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 16:08:41,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:41,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 16:08:41,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:41,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 16:08:41,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:41,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-16 16:08:41,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:41,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-16 16:08:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:41,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 16:08:41,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:41,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 16:08:41,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:41,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-16 16:08:41,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:41,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-16 16:08:41,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:41,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-16 16:08:41,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:41,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-16 16:08:41,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:41,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-11-16 16:08:41,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:41,577 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-16 16:08:41,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:08:41,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247244070] [2024-11-16 16:08:41,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247244070] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:08:41,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:08:41,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 16:08:41,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401501966] [2024-11-16 16:08:41,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:08:41,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 16:08:41,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:08:41,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 16:08:41,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 16:08:41,582 INFO L87 Difference]: Start difference. First operand 416 states and 651 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-16 16:08:41,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:08:41,953 INFO L93 Difference]: Finished difference Result 830 states and 1292 transitions. [2024-11-16 16:08:41,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 16:08:41,954 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 206 [2024-11-16 16:08:41,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:08:41,958 INFO L225 Difference]: With dead ends: 830 [2024-11-16 16:08:41,958 INFO L226 Difference]: Without dead ends: 475 [2024-11-16 16:08:41,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-16 16:08:41,962 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 181 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 16:08:41,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 642 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 16:08:41,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2024-11-16 16:08:42,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 415. [2024-11-16 16:08:42,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 286 states have (on average 1.3986013986013985) internal successors, (400), 286 states have internal predecessors, (400), 124 states have call successors, (124), 4 states have call predecessors, (124), 4 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-16 16:08:42,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 648 transitions. [2024-11-16 16:08:42,020 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 648 transitions. Word has length 206 [2024-11-16 16:08:42,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:08:42,021 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 648 transitions. [2024-11-16 16:08:42,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-16 16:08:42,023 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 648 transitions. [2024-11-16 16:08:42,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-16 16:08:42,025 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:08:42,026 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:08:42,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 16:08:42,026 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:08:42,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:08:42,028 INFO L85 PathProgramCache]: Analyzing trace with hash -487488125, now seen corresponding path program 1 times [2024-11-16 16:08:42,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:08:42,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59040620] [2024-11-16 16:08:42,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:08:42,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:08:42,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:42,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:08:42,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:42,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:08:42,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:42,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:08:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:42,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:08:42,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:42,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:08:42,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:42,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:08:42,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:42,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:08:42,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:42,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:08:42,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:42,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:08:42,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:42,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:08:42,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:42,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:08:42,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:42,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:08:42,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:42,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:08:42,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:42,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 16:08:42,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:42,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 16:08:42,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:42,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 16:08:42,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:42,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 16:08:42,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:42,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 16:08:42,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:42,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 16:08:42,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:42,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 16:08:42,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:42,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 16:08:42,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:42,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 16:08:42,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:42,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-16 16:08:42,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:42,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-16 16:08:42,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:42,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 16:08:42,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:42,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 16:08:42,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:42,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-16 16:08:42,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:42,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-16 16:08:42,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:42,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-16 16:08:42,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:42,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-16 16:08:42,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:42,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-11-16 16:08:42,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:42,619 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-16 16:08:42,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:08:42,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59040620] [2024-11-16 16:08:42,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59040620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:08:42,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:08:42,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 16:08:42,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499390945] [2024-11-16 16:08:42,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:08:42,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 16:08:42,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:08:42,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 16:08:42,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 16:08:42,645 INFO L87 Difference]: Start difference. First operand 415 states and 648 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-16 16:08:42,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:08:42,909 INFO L93 Difference]: Finished difference Result 1067 states and 1668 transitions. [2024-11-16 16:08:42,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 16:08:42,910 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 206 [2024-11-16 16:08:42,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:08:42,915 INFO L225 Difference]: With dead ends: 1067 [2024-11-16 16:08:42,915 INFO L226 Difference]: Without dead ends: 743 [2024-11-16 16:08:42,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 16:08:42,920 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 83 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 16:08:42,921 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 339 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 16:08:42,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2024-11-16 16:08:42,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 736. [2024-11-16 16:08:42,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 511 states have (on average 1.3913894324853229) internal successors, (711), 511 states have internal predecessors, (711), 217 states have call successors, (217), 7 states have call predecessors, (217), 7 states have return successors, (217), 217 states have call predecessors, (217), 217 states have call successors, (217) [2024-11-16 16:08:42,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 1145 transitions. [2024-11-16 16:08:42,999 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 1145 transitions. Word has length 206 [2024-11-16 16:08:43,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:08:43,000 INFO L471 AbstractCegarLoop]: Abstraction has 736 states and 1145 transitions. [2024-11-16 16:08:43,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-16 16:08:43,001 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 1145 transitions. [2024-11-16 16:08:43,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-16 16:08:43,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:08:43,003 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:08:43,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 16:08:43,004 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:08:43,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:08:43,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1020063684, now seen corresponding path program 1 times [2024-11-16 16:08:43,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:08:43,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152079248] [2024-11-16 16:08:43,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:08:43,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:08:43,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:43,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:08:43,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:43,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:08:43,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:43,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:08:43,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:43,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:08:43,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:43,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:08:43,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:43,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:08:43,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:43,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:08:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:43,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:08:43,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:43,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:08:43,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:43,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:08:43,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:43,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:08:43,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:43,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:08:43,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:43,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:08:43,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:43,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 16:08:43,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:43,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 16:08:43,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:43,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 16:08:43,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:43,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 16:08:43,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:43,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 16:08:43,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:43,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 16:08:43,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:43,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 16:08:43,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:43,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 16:08:43,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:43,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 16:08:43,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:43,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-16 16:08:43,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:43,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-16 16:08:43,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:43,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 16:08:43,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:43,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 16:08:43,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:43,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-16 16:08:43,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:43,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-16 16:08:43,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:43,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-16 16:08:43,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:43,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-16 16:08:43,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:43,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-11-16 16:08:43,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:43,583 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-16 16:08:43,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:08:43,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152079248] [2024-11-16 16:08:43,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152079248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:08:43,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:08:43,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 16:08:43,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780305960] [2024-11-16 16:08:43,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:08:43,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 16:08:43,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:08:43,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 16:08:43,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 16:08:43,587 INFO L87 Difference]: Start difference. First operand 736 states and 1145 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-16 16:08:43,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:08:43,919 INFO L93 Difference]: Finished difference Result 1806 states and 2805 transitions. [2024-11-16 16:08:43,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 16:08:43,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 206 [2024-11-16 16:08:43,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:08:43,928 INFO L225 Difference]: With dead ends: 1806 [2024-11-16 16:08:43,928 INFO L226 Difference]: Without dead ends: 1181 [2024-11-16 16:08:43,931 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-16 16:08:43,932 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 269 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 16:08:43,932 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 518 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 16:08:43,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1181 states. [2024-11-16 16:08:44,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1181 to 966. [2024-11-16 16:08:44,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 677 states have (on average 1.4002954209748892) internal successors, (948), 677 states have internal predecessors, (948), 279 states have call successors, (279), 9 states have call predecessors, (279), 9 states have return successors, (279), 279 states have call predecessors, (279), 279 states have call successors, (279) [2024-11-16 16:08:44,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1506 transitions. [2024-11-16 16:08:44,063 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1506 transitions. Word has length 206 [2024-11-16 16:08:44,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:08:44,064 INFO L471 AbstractCegarLoop]: Abstraction has 966 states and 1506 transitions. [2024-11-16 16:08:44,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-16 16:08:44,065 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1506 transitions. [2024-11-16 16:08:44,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-16 16:08:44,067 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:08:44,067 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:08:44,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 16:08:44,067 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:08:44,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:08:44,068 INFO L85 PathProgramCache]: Analyzing trace with hash -295235677, now seen corresponding path program 1 times [2024-11-16 16:08:44,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:08:44,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792281348] [2024-11-16 16:08:44,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:08:44,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:08:44,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:44,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:08:44,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:44,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:08:44,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:44,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:08:44,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:44,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:08:44,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:44,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:08:44,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:44,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:08:44,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:44,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:08:44,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:44,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:08:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:44,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:08:44,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:44,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:08:44,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:44,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:08:44,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:44,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:08:44,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:44,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:08:44,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:44,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 16:08:44,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:44,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 16:08:44,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:44,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 16:08:44,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:44,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 16:08:44,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:44,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 16:08:44,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:44,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 16:08:44,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:44,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 16:08:44,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:44,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 16:08:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:44,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 16:08:44,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:44,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-16 16:08:44,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:44,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-16 16:08:44,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:44,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 16:08:44,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:44,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 16:08:44,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:44,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-16 16:08:44,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:44,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-16 16:08:44,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:44,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-16 16:08:44,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:44,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-16 16:08:44,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:44,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-11-16 16:08:44,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:44,230 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-16 16:08:44,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:08:44,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792281348] [2024-11-16 16:08:44,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792281348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:08:44,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:08:44,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 16:08:44,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416399742] [2024-11-16 16:08:44,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:08:44,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 16:08:44,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:08:44,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 16:08:44,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 16:08:44,232 INFO L87 Difference]: Start difference. First operand 966 states and 1506 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-16 16:08:44,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:08:44,343 INFO L93 Difference]: Finished difference Result 2229 states and 3454 transitions. [2024-11-16 16:08:44,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 16:08:44,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 207 [2024-11-16 16:08:44,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:08:44,353 INFO L225 Difference]: With dead ends: 2229 [2024-11-16 16:08:44,353 INFO L226 Difference]: Without dead ends: 1344 [2024-11-16 16:08:44,357 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 16:08:44,358 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 42 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 16:08:44,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 287 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 16:08:44,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1344 states. [2024-11-16 16:08:44,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1344 to 1192. [2024-11-16 16:08:44,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1192 states, 903 states have (on average 1.4219269102990033) internal successors, (1284), 903 states have internal predecessors, (1284), 279 states have call successors, (279), 9 states have call predecessors, (279), 9 states have return successors, (279), 279 states have call predecessors, (279), 279 states have call successors, (279) [2024-11-16 16:08:44,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1192 states to 1192 states and 1842 transitions. [2024-11-16 16:08:44,493 INFO L78 Accepts]: Start accepts. Automaton has 1192 states and 1842 transitions. Word has length 207 [2024-11-16 16:08:44,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:08:44,494 INFO L471 AbstractCegarLoop]: Abstraction has 1192 states and 1842 transitions. [2024-11-16 16:08:44,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-16 16:08:44,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1192 states and 1842 transitions. [2024-11-16 16:08:44,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-16 16:08:44,496 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:08:44,497 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:08:44,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 16:08:44,497 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:08:44,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:08:44,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1058074020, now seen corresponding path program 1 times [2024-11-16 16:08:44,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:08:44,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548702118] [2024-11-16 16:08:44,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:08:44,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:08:44,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-16 16:08:44,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1960267891] [2024-11-16 16:08:44,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:08:44,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 16:08:44,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 16:08:44,809 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 16:08:44,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 16:08:45,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:08:45,118 INFO L255 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 75 conjuncts are in the unsatisfiable core [2024-11-16 16:08:45,143 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 16:08:51,050 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 1493 proven. 159 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2024-11-16 16:08:51,051 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 16:09:10,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:09:10,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548702118] [2024-11-16 16:09:10,210 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-16 16:09:10,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960267891] [2024-11-16 16:09:10,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960267891] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 16:09:10,211 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-16 16:09:10,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43] total 43 [2024-11-16 16:09:10,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961741884] [2024-11-16 16:09:10,211 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-16 16:09:10,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-11-16 16:09:10,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:09:10,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-11-16 16:09:10,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=513, Invalid=2455, Unknown=2, NotChecked=0, Total=2970 [2024-11-16 16:09:10,215 INFO L87 Difference]: Start difference. First operand 1192 states and 1842 transitions. Second operand has 44 states, 44 states have (on average 2.272727272727273) internal successors, (100), 39 states have internal predecessors, (100), 11 states have call successors, (31), 11 states have call predecessors, (31), 16 states have return successors, (31), 12 states have call predecessors, (31), 11 states have call successors, (31) [2024-11-16 16:09:14,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:09:14,094 INFO L93 Difference]: Finished difference Result 2173 states and 3204 transitions. [2024-11-16 16:09:14,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-11-16 16:09:14,095 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 2.272727272727273) internal successors, (100), 39 states have internal predecessors, (100), 11 states have call successors, (31), 11 states have call predecessors, (31), 16 states have return successors, (31), 12 states have call predecessors, (31), 11 states have call successors, (31) Word has length 207 [2024-11-16 16:09:14,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:09:14,107 INFO L225 Difference]: With dead ends: 2173 [2024-11-16 16:09:14,107 INFO L226 Difference]: Without dead ends: 1908 [2024-11-16 16:09:14,112 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2753 ImplicationChecksByTransitivity, 17.2s TimeCoverageRelationStatistics Valid=1805, Invalid=8495, Unknown=2, NotChecked=0, Total=10302 [2024-11-16 16:09:14,113 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 732 mSDsluCounter, 1199 mSDsCounter, 0 mSdLazyCounter, 1563 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 1388 SdHoareTripleChecker+Invalid, 1743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 1563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 16:09:14,113 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 1388 Invalid, 1743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 1563 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 16:09:14,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1908 states. [2024-11-16 16:09:14,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1908 to 1709. [2024-11-16 16:09:14,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1709 states, 1286 states have (on average 1.3740279937791602) internal successors, (1767), 1295 states have internal predecessors, (1767), 390 states have call successors, (390), 32 states have call predecessors, (390), 32 states have return successors, (390), 381 states have call predecessors, (390), 390 states have call successors, (390) [2024-11-16 16:09:14,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1709 states to 1709 states and 2547 transitions. [2024-11-16 16:09:14,306 INFO L78 Accepts]: Start accepts. Automaton has 1709 states and 2547 transitions. Word has length 207 [2024-11-16 16:09:14,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:09:14,307 INFO L471 AbstractCegarLoop]: Abstraction has 1709 states and 2547 transitions. [2024-11-16 16:09:14,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 2.272727272727273) internal successors, (100), 39 states have internal predecessors, (100), 11 states have call successors, (31), 11 states have call predecessors, (31), 16 states have return successors, (31), 12 states have call predecessors, (31), 11 states have call successors, (31) [2024-11-16 16:09:14,308 INFO L276 IsEmpty]: Start isEmpty. Operand 1709 states and 2547 transitions. [2024-11-16 16:09:14,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-16 16:09:14,311 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:09:14,311 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:09:14,332 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 16:09:14,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 16:09:14,516 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:09:14,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:09:14,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1729341467, now seen corresponding path program 1 times [2024-11-16 16:09:14,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:09:14,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777236316] [2024-11-16 16:09:14,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:09:14,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:09:14,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:16,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:09:16,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:16,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:09:16,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:16,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:09:16,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:16,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:09:16,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:16,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:09:16,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:16,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:09:16,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:16,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:09:16,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:16,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:09:16,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:16,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:09:16,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:16,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:09:16,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:16,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:09:16,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:16,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:09:16,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:16,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:09:16,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:16,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 16:09:16,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:16,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 16:09:16,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:16,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 16:09:16,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:16,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 16:09:16,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:16,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 16:09:16,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:16,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 16:09:16,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:16,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 16:09:16,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:16,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 16:09:16,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:16,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 16:09:16,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:16,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-16 16:09:16,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:16,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-16 16:09:16,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:16,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 16:09:16,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:16,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 16:09:16,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:16,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-16 16:09:16,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:16,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-16 16:09:16,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:16,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-16 16:09:16,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:16,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-16 16:09:16,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:16,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-11-16 16:09:16,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:16,584 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 492 proven. 60 refuted. 0 times theorem prover too weak. 1308 trivial. 0 not checked. [2024-11-16 16:09:16,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:09:16,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777236316] [2024-11-16 16:09:16,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777236316] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 16:09:16,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51328037] [2024-11-16 16:09:16,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:09:16,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 16:09:16,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 16:09:16,587 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 16:09:16,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 16:09:16,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:16,760 INFO L255 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-16 16:09:16,771 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 16:09:18,632 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 1205 proven. 60 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2024-11-16 16:09:18,632 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 16:09:24,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51328037] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 16:09:24,310 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-16 16:09:24,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 28] total 40 [2024-11-16 16:09:24,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133035804] [2024-11-16 16:09:24,311 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-16 16:09:24,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-11-16 16:09:24,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:09:24,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-11-16 16:09:24,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=403, Invalid=1852, Unknown=1, NotChecked=0, Total=2256 [2024-11-16 16:09:24,313 INFO L87 Difference]: Start difference. First operand 1709 states and 2547 transitions. Second operand has 40 states, 37 states have (on average 3.081081081081081) internal successors, (114), 33 states have internal predecessors, (114), 14 states have call successors, (62), 9 states have call predecessors, (62), 13 states have return successors, (62), 16 states have call predecessors, (62), 14 states have call successors, (62) [2024-11-16 16:09:28,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:09:28,095 INFO L93 Difference]: Finished difference Result 3480 states and 4915 transitions. [2024-11-16 16:09:28,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2024-11-16 16:09:28,095 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 37 states have (on average 3.081081081081081) internal successors, (114), 33 states have internal predecessors, (114), 14 states have call successors, (62), 9 states have call predecessors, (62), 13 states have return successors, (62), 16 states have call predecessors, (62), 14 states have call successors, (62) Word has length 207 [2024-11-16 16:09:28,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:09:28,114 INFO L225 Difference]: With dead ends: 3480 [2024-11-16 16:09:28,114 INFO L226 Difference]: Without dead ends: 2989 [2024-11-16 16:09:28,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2414 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=1861, Invalid=7450, Unknown=1, NotChecked=0, Total=9312 [2024-11-16 16:09:28,121 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 457 mSDsluCounter, 2098 mSDsCounter, 0 mSdLazyCounter, 2474 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 2287 SdHoareTripleChecker+Invalid, 2703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 2474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-16 16:09:28,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 2287 Invalid, 2703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 2474 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-16 16:09:28,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2989 states. [2024-11-16 16:09:28,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2989 to 2831. [2024-11-16 16:09:28,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2831 states, 2111 states have (on average 1.3278067266698248) internal successors, (2803), 2123 states have internal predecessors, (2803), 596 states have call successors, (596), 123 states have call predecessors, (596), 123 states have return successors, (596), 584 states have call predecessors, (596), 596 states have call successors, (596) [2024-11-16 16:09:28,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2831 states to 2831 states and 3995 transitions. [2024-11-16 16:09:28,375 INFO L78 Accepts]: Start accepts. Automaton has 2831 states and 3995 transitions. Word has length 207 [2024-11-16 16:09:28,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:09:28,376 INFO L471 AbstractCegarLoop]: Abstraction has 2831 states and 3995 transitions. [2024-11-16 16:09:28,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 37 states have (on average 3.081081081081081) internal successors, (114), 33 states have internal predecessors, (114), 14 states have call successors, (62), 9 states have call predecessors, (62), 13 states have return successors, (62), 16 states have call predecessors, (62), 14 states have call successors, (62) [2024-11-16 16:09:28,376 INFO L276 IsEmpty]: Start isEmpty. Operand 2831 states and 3995 transitions. [2024-11-16 16:09:28,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-16 16:09:28,379 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:09:28,380 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:09:28,402 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-16 16:09:28,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-16 16:09:28,581 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:09:28,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:09:28,581 INFO L85 PathProgramCache]: Analyzing trace with hash 138387367, now seen corresponding path program 1 times [2024-11-16 16:09:28,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:09:28,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71477489] [2024-11-16 16:09:28,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:09:28,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:09:28,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:28,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:09:28,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:28,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:09:28,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:28,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:09:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:28,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:09:28,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:28,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:09:28,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:28,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:09:28,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:28,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:09:28,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:28,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:09:28,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:28,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:09:28,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:28,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:09:28,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:28,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:09:28,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:28,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:09:28,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:28,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:09:28,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:28,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 16:09:28,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:28,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 16:09:28,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:28,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 16:09:28,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:28,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 16:09:28,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:28,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 16:09:28,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:28,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 16:09:28,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:28,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 16:09:28,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:28,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 16:09:28,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:28,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 16:09:28,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:28,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-16 16:09:28,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:28,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-16 16:09:28,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:28,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 16:09:28,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:28,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 16:09:28,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:28,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-16 16:09:28,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:28,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-16 16:09:28,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:28,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-16 16:09:28,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:28,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-16 16:09:28,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:28,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-11-16 16:09:28,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:28,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-16 16:09:28,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:09:28,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71477489] [2024-11-16 16:09:28,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71477489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:09:28,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:09:28,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 16:09:28,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737844363] [2024-11-16 16:09:28,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:09:28,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 16:09:28,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:09:28,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 16:09:28,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 16:09:28,939 INFO L87 Difference]: Start difference. First operand 2831 states and 3995 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-16 16:09:29,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:09:29,238 INFO L93 Difference]: Finished difference Result 6117 states and 8678 transitions. [2024-11-16 16:09:29,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 16:09:29,239 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 207 [2024-11-16 16:09:29,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:09:29,262 INFO L225 Difference]: With dead ends: 6117 [2024-11-16 16:09:29,262 INFO L226 Difference]: Without dead ends: 3622 [2024-11-16 16:09:29,272 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 16:09:29,273 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 94 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 16:09:29,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 473 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 16:09:29,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3622 states. [2024-11-16 16:09:29,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3622 to 2912. [2024-11-16 16:09:29,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2912 states, 2192 states have (on average 1.3161496350364963) internal successors, (2885), 2204 states have internal predecessors, (2885), 596 states have call successors, (596), 123 states have call predecessors, (596), 123 states have return successors, (596), 584 states have call predecessors, (596), 596 states have call successors, (596) [2024-11-16 16:09:29,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2912 states to 2912 states and 4077 transitions. [2024-11-16 16:09:29,601 INFO L78 Accepts]: Start accepts. Automaton has 2912 states and 4077 transitions. Word has length 207 [2024-11-16 16:09:29,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:09:29,602 INFO L471 AbstractCegarLoop]: Abstraction has 2912 states and 4077 transitions. [2024-11-16 16:09:29,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-16 16:09:29,602 INFO L276 IsEmpty]: Start isEmpty. Operand 2912 states and 4077 transitions. [2024-11-16 16:09:29,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-16 16:09:29,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:09:29,604 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:09:29,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 16:09:29,605 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:09:29,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:09:29,605 INFO L85 PathProgramCache]: Analyzing trace with hash -270436858, now seen corresponding path program 1 times [2024-11-16 16:09:29,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:09:29,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208279356] [2024-11-16 16:09:29,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:09:29,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:09:29,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:34,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:09:34,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:34,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:09:34,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:34,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:09:34,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:34,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:09:34,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:34,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:09:34,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:34,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:09:34,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:34,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:09:34,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:34,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:09:34,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:34,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:09:34,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:34,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:09:34,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:34,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:09:34,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:34,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:09:34,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:34,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:09:34,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:34,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 16:09:34,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:34,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 16:09:34,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:34,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 16:09:34,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:34,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 16:09:34,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:34,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 16:09:34,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:34,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 16:09:34,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:34,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 16:09:34,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:34,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 16:09:34,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:34,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 16:09:34,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:34,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-16 16:09:34,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:34,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-16 16:09:34,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:34,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 16:09:34,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:34,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 16:09:34,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:34,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-16 16:09:34,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:34,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-16 16:09:34,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:34,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-16 16:09:34,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:34,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-16 16:09:34,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:34,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-11-16 16:09:34,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:34,761 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 63 proven. 27 refuted. 0 times theorem prover too weak. 1770 trivial. 0 not checked. [2024-11-16 16:09:34,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:09:34,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208279356] [2024-11-16 16:09:34,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208279356] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 16:09:34,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443093009] [2024-11-16 16:09:34,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:09:34,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 16:09:34,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 16:09:34,765 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 16:09:34,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 16:09:34,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:09:34,921 INFO L255 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-16 16:09:34,928 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 16:09:36,667 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 852 proven. 63 refuted. 0 times theorem prover too weak. 945 trivial. 0 not checked. [2024-11-16 16:09:36,667 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 16:09:38,214 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 126 proven. 51 refuted. 0 times theorem prover too weak. 1683 trivial. 0 not checked. [2024-11-16 16:09:38,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1443093009] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 16:09:38,214 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 16:09:38,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14, 14] total 37 [2024-11-16 16:09:38,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684440053] [2024-11-16 16:09:38,215 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 16:09:38,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-16 16:09:38,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:09:38,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-16 16:09:38,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=312, Invalid=1020, Unknown=0, NotChecked=0, Total=1332 [2024-11-16 16:09:38,217 INFO L87 Difference]: Start difference. First operand 2912 states and 4077 transitions. Second operand has 37 states, 35 states have (on average 4.542857142857143) internal successors, (159), 35 states have internal predecessors, (159), 11 states have call successors, (93), 5 states have call predecessors, (93), 9 states have return successors, (93), 10 states have call predecessors, (93), 11 states have call successors, (93) [2024-11-16 16:09:42,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:09:42,347 INFO L93 Difference]: Finished difference Result 8962 states and 12609 transitions. [2024-11-16 16:09:42,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-11-16 16:09:42,348 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 35 states have (on average 4.542857142857143) internal successors, (159), 35 states have internal predecessors, (159), 11 states have call successors, (93), 5 states have call predecessors, (93), 9 states have return successors, (93), 10 states have call predecessors, (93), 11 states have call successors, (93) Word has length 207 [2024-11-16 16:09:42,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:09:42,387 INFO L225 Difference]: With dead ends: 8962 [2024-11-16 16:09:42,387 INFO L226 Difference]: Without dead ends: 6387 [2024-11-16 16:09:42,397 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 531 GetRequests, 462 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1274 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1125, Invalid=3845, Unknown=0, NotChecked=0, Total=4970 [2024-11-16 16:09:42,398 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 1368 mSDsluCounter, 1713 mSDsCounter, 0 mSdLazyCounter, 2114 mSolverCounterSat, 659 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1391 SdHoareTripleChecker+Valid, 1843 SdHoareTripleChecker+Invalid, 2773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 659 IncrementalHoareTripleChecker+Valid, 2114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-16 16:09:42,398 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1391 Valid, 1843 Invalid, 2773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [659 Valid, 2114 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-16 16:09:42,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6387 states. [2024-11-16 16:09:42,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6387 to 3894. [2024-11-16 16:09:42,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3894 states, 2880 states have (on average 1.3152777777777778) internal successors, (3788), 2908 states have internal predecessors, (3788), 854 states have call successors, (854), 159 states have call predecessors, (854), 159 states have return successors, (854), 826 states have call predecessors, (854), 854 states have call successors, (854) [2024-11-16 16:09:42,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3894 states to 3894 states and 5496 transitions. [2024-11-16 16:09:42,879 INFO L78 Accepts]: Start accepts. Automaton has 3894 states and 5496 transitions. Word has length 207 [2024-11-16 16:09:42,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:09:42,879 INFO L471 AbstractCegarLoop]: Abstraction has 3894 states and 5496 transitions. [2024-11-16 16:09:42,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 35 states have (on average 4.542857142857143) internal successors, (159), 35 states have internal predecessors, (159), 11 states have call successors, (93), 5 states have call predecessors, (93), 9 states have return successors, (93), 10 states have call predecessors, (93), 11 states have call successors, (93) [2024-11-16 16:09:42,884 INFO L276 IsEmpty]: Start isEmpty. Operand 3894 states and 5496 transitions. [2024-11-16 16:09:42,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-11-16 16:09:42,889 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:09:42,890 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:09:42,909 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 16:09:43,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 16:09:43,091 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:09:43,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:09:43,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1681857702, now seen corresponding path program 1 times [2024-11-16 16:09:43,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:09:43,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120396460] [2024-11-16 16:09:43,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:09:43,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms