./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-nonlinear/color-magicseries2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-nonlinear/color-magicseries2.c -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 f056be744fcae26accb2c049a9cf7a4321bd3ba6c0302870967f442303a6d9cc --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 12:58:09,663 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 12:58:09,721 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 12:58:09,724 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 12:58:09,726 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 12:58:09,743 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 12:58:09,744 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 12:58:09,744 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 12:58:09,744 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 12:58:09,746 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 12:58:09,746 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 12:58:09,746 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 12:58:09,747 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 12:58:09,748 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 12:58:09,748 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 12:58:09,748 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 12:58:09,749 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 12:58:09,749 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 12:58:09,749 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 12:58:09,749 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 12:58:09,749 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 12:58:09,750 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 12:58:09,750 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 12:58:09,750 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 12:58:09,750 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 12:58:09,750 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 12:58:09,751 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 12:58:09,751 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 12:58:09,751 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 12:58:09,751 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 12:58:09,751 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 12:58:09,752 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 12:58:09,752 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 12:58:09,752 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 12:58:09,752 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 12:58:09,752 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 12:58:09,752 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 12:58:09,753 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 12:58:09,753 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 12:58:09,753 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 12:58:09,753 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 12:58:09,754 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 12:58:09,754 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f056be744fcae26accb2c049a9cf7a4321bd3ba6c0302870967f442303a6d9cc [2024-11-18 12:58:09,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 12:58:09,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 12:58:09,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 12:58:09,950 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 12:58:09,950 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 12:58:09,951 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-nonlinear/color-magicseries2.c [2024-11-18 12:58:11,163 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 12:58:11,306 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 12:58:11,306 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-nonlinear/color-magicseries2.c [2024-11-18 12:58:11,313 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ba582be0/bd84e369fc464cae8a492a90e8544efb/FLAGeabbc2170 [2024-11-18 12:58:11,719 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ba582be0/bd84e369fc464cae8a492a90e8544efb [2024-11-18 12:58:11,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 12:58:11,722 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 12:58:11,724 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 12:58:11,724 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 12:58:11,728 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 12:58:11,729 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:58:11" (1/1) ... [2024-11-18 12:58:11,729 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b4d6786 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:58:11, skipping insertion in model container [2024-11-18 12:58:11,731 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:58:11" (1/1) ... [2024-11-18 12:58:11,746 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 12:58:11,916 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/floats-nonlinear/color-magicseries2.c[613,626] [2024-11-18 12:58:11,935 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 12:58:11,941 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 12:58:11,948 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/floats-nonlinear/color-magicseries2.c[613,626] [2024-11-18 12:58:11,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 12:58:11,967 INFO L204 MainTranslator]: Completed translation [2024-11-18 12:58:11,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:58:11 WrapperNode [2024-11-18 12:58:11,967 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 12:58:11,968 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 12:58:11,968 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 12:58:11,968 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 12:58:11,972 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:58:11" (1/1) ... [2024-11-18 12:58:11,978 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:58:11" (1/1) ... [2024-11-18 12:58:11,992 INFO L138 Inliner]: procedures = 17, calls = 24, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 142 [2024-11-18 12:58:11,993 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 12:58:11,993 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 12:58:11,993 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 12:58:11,993 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 12:58:12,001 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:58:11" (1/1) ... [2024-11-18 12:58:12,001 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:58:11" (1/1) ... [2024-11-18 12:58:12,003 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:58:11" (1/1) ... [2024-11-18 12:58:12,017 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 6 initializations are split as follows [2, 4]. The 0 writes are split as follows [0, 0]. [2024-11-18 12:58:12,017 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:58:11" (1/1) ... [2024-11-18 12:58:12,017 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:58:11" (1/1) ... [2024-11-18 12:58:12,020 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:58:11" (1/1) ... [2024-11-18 12:58:12,023 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:58:11" (1/1) ... [2024-11-18 12:58:12,023 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:58:11" (1/1) ... [2024-11-18 12:58:12,024 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:58:11" (1/1) ... [2024-11-18 12:58:12,026 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 12:58:12,026 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 12:58:12,026 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 12:58:12,027 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 12:58:12,027 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:58:11" (1/1) ... [2024-11-18 12:58:12,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 12:58:12,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 12:58:12,052 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) [2024-11-18 12:58:12,055 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 [2024-11-18 12:58:12,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 12:58:12,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 12:58:12,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-18 12:58:12,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-18 12:58:12,093 INFO L130 BoogieDeclarations]: Found specification of procedure check_domain [2024-11-18 12:58:12,093 INFO L138 BoogieDeclarations]: Found implementation of procedure check_domain [2024-11-18 12:58:12,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 12:58:12,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 12:58:12,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-18 12:58:12,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-18 12:58:12,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-18 12:58:12,158 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 12:58:12,160 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 12:58:12,319 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2024-11-18 12:58:12,319 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 12:58:12,331 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 12:58:12,333 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-18 12:58:12,333 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:58:12 BoogieIcfgContainer [2024-11-18 12:58:12,333 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 12:58:12,335 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 12:58:12,336 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 12:58:12,338 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 12:58:12,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:58:11" (1/3) ... [2024-11-18 12:58:12,339 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d3fa874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:58:12, skipping insertion in model container [2024-11-18 12:58:12,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:58:11" (2/3) ... [2024-11-18 12:58:12,339 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d3fa874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:58:12, skipping insertion in model container [2024-11-18 12:58:12,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:58:12" (3/3) ... [2024-11-18 12:58:12,340 INFO L112 eAbstractionObserver]: Analyzing ICFG color-magicseries2.c [2024-11-18 12:58:12,352 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 12:58:12,353 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 12:58:12,403 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 12:58:12,408 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;@4b78e44d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 12:58:12,408 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 12:58:12,411 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 32 states have (on average 1.46875) internal successors, (47), 33 states have internal predecessors, (47), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-18 12:58:12,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-18 12:58:12,417 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 12:58:12,417 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 12:58:12,417 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 12:58:12,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 12:58:12,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1909413201, now seen corresponding path program 1 times [2024-11-18 12:58:12,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 12:58:12,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138378925] [2024-11-18 12:58:12,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 12:58:12,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 12:58:12,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 12:58:12,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 12:58:12,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 12:58:12,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138378925] [2024-11-18 12:58:12,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138378925] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 12:58:12,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 12:58:12,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 12:58:12,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109713140] [2024-11-18 12:58:12,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 12:58:12,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 12:58:12,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 12:58:12,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 12:58:12,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 12:58:12,712 INFO L87 Difference]: Start difference. First operand has 39 states, 32 states have (on average 1.46875) internal successors, (47), 33 states have internal predecessors, (47), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-18 12:58:12,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 12:58:12,756 INFO L93 Difference]: Finished difference Result 75 states and 108 transitions. [2024-11-18 12:58:12,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 12:58:12,758 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-11-18 12:58:12,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 12:58:12,763 INFO L225 Difference]: With dead ends: 75 [2024-11-18 12:58:12,763 INFO L226 Difference]: Without dead ends: 39 [2024-11-18 12:58:12,765 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 12:58:12,767 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 0 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 12:58:12,768 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 187 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 12:58:12,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-18 12:58:12,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2024-11-18 12:58:12,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 32 states have (on average 1.34375) internal successors, (43), 32 states have internal predecessors, (43), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-18 12:58:12,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 55 transitions. [2024-11-18 12:58:12,797 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 55 transitions. Word has length 17 [2024-11-18 12:58:12,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 12:58:12,797 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 55 transitions. [2024-11-18 12:58:12,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-18 12:58:12,798 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2024-11-18 12:58:12,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-18 12:58:12,799 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 12:58:12,799 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 12:58:12,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 12:58:12,799 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 12:58:12,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 12:58:12,800 INFO L85 PathProgramCache]: Analyzing trace with hash 2092151088, now seen corresponding path program 1 times [2024-11-18 12:58:12,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 12:58:12,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101424308] [2024-11-18 12:58:12,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 12:58:12,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 12:58:12,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 12:58:12,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 12:58:12,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 12:58:12,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101424308] [2024-11-18 12:58:12,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101424308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 12:58:12,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 12:58:12,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 12:58:12,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938746389] [2024-11-18 12:58:12,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 12:58:12,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 12:58:12,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 12:58:12,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 12:58:12,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 12:58:12,931 INFO L87 Difference]: Start difference. First operand 39 states and 55 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-18 12:58:12,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 12:58:12,950 INFO L93 Difference]: Finished difference Result 43 states and 58 transitions. [2024-11-18 12:58:12,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 12:58:12,952 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-11-18 12:58:12,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 12:58:12,953 INFO L225 Difference]: With dead ends: 43 [2024-11-18 12:58:12,953 INFO L226 Difference]: Without dead ends: 39 [2024-11-18 12:58:12,953 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 12:58:12,954 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 0 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 12:58:12,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 136 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 12:58:12,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-18 12:58:12,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2024-11-18 12:58:12,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 32 states have (on average 1.28125) internal successors, (41), 32 states have internal predecessors, (41), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-18 12:58:12,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2024-11-18 12:58:12,962 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 17 [2024-11-18 12:58:12,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 12:58:12,963 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2024-11-18 12:58:12,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-18 12:58:12,963 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2024-11-18 12:58:12,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-18 12:58:12,965 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 12:58:12,965 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 12:58:12,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 12:58:12,966 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 12:58:12,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 12:58:12,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1014348991, now seen corresponding path program 1 times [2024-11-18 12:58:12,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 12:58:12,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935978156] [2024-11-18 12:58:12,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 12:58:12,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 12:58:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 12:58:13,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 12:58:13,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 12:58:13,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935978156] [2024-11-18 12:58:13,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935978156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 12:58:13,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 12:58:13,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 12:58:13,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862700989] [2024-11-18 12:58:13,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 12:58:13,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 12:58:13,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 12:58:13,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 12:58:13,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 12:58:13,012 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-18 12:58:13,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 12:58:13,025 INFO L93 Difference]: Finished difference Result 55 states and 73 transitions. [2024-11-18 12:58:13,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 12:58:13,026 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2024-11-18 12:58:13,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 12:58:13,026 INFO L225 Difference]: With dead ends: 55 [2024-11-18 12:58:13,026 INFO L226 Difference]: Without dead ends: 39 [2024-11-18 12:58:13,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 12:58:13,028 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 0 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 12:58:13,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 85 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 12:58:13,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-18 12:58:13,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2024-11-18 12:58:13,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 32 states have (on average 1.25) internal successors, (40), 32 states have internal predecessors, (40), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-18 12:58:13,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 52 transitions. [2024-11-18 12:58:13,036 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 52 transitions. Word has length 19 [2024-11-18 12:58:13,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 12:58:13,036 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 52 transitions. [2024-11-18 12:58:13,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-18 12:58:13,037 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 52 transitions. [2024-11-18 12:58:13,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-18 12:58:13,038 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 12:58:13,038 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 12:58:13,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 12:58:13,039 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 12:58:13,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 12:58:13,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1993641799, now seen corresponding path program 1 times [2024-11-18 12:58:13,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 12:58:13,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847124368] [2024-11-18 12:58:13,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 12:58:13,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 12:58:13,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 12:58:13,121 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-18 12:58:13,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 12:58:13,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847124368] [2024-11-18 12:58:13,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847124368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 12:58:13,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 12:58:13,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 12:58:13,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225795065] [2024-11-18 12:58:13,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 12:58:13,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 12:58:13,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 12:58:13,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 12:58:13,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 12:58:13,124 INFO L87 Difference]: Start difference. First operand 39 states and 52 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-18 12:58:13,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 12:58:13,148 INFO L93 Difference]: Finished difference Result 65 states and 83 transitions. [2024-11-18 12:58:13,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 12:58:13,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2024-11-18 12:58:13,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 12:58:13,149 INFO L225 Difference]: With dead ends: 65 [2024-11-18 12:58:13,149 INFO L226 Difference]: Without dead ends: 39 [2024-11-18 12:58:13,150 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 12:58:13,150 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 12:58:13,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 12:58:13,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-18 12:58:13,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2024-11-18 12:58:13,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 32 states have (on average 1.21875) internal successors, (39), 32 states have internal predecessors, (39), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-18 12:58:13,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 51 transitions. [2024-11-18 12:58:13,161 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 51 transitions. Word has length 25 [2024-11-18 12:58:13,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 12:58:13,162 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 51 transitions. [2024-11-18 12:58:13,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-18 12:58:13,162 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 51 transitions. [2024-11-18 12:58:13,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-18 12:58:13,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 12:58:13,164 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 12:58:13,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 12:58:13,165 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 12:58:13,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 12:58:13,166 INFO L85 PathProgramCache]: Analyzing trace with hash 719872684, now seen corresponding path program 1 times [2024-11-18 12:58:13,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 12:58:13,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80252770] [2024-11-18 12:58:13,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 12:58:13,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 12:58:13,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 12:58:13,237 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 12:58:13,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 12:58:13,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80252770] [2024-11-18 12:58:13,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80252770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 12:58:13,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 12:58:13,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 12:58:13,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573970642] [2024-11-18 12:58:13,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 12:58:13,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 12:58:13,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 12:58:13,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 12:58:13,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 12:58:13,241 INFO L87 Difference]: Start difference. First operand 39 states and 51 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-18 12:58:13,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 12:58:13,265 INFO L93 Difference]: Finished difference Result 69 states and 88 transitions. [2024-11-18 12:58:13,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 12:58:13,265 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2024-11-18 12:58:13,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 12:58:13,266 INFO L225 Difference]: With dead ends: 69 [2024-11-18 12:58:13,267 INFO L226 Difference]: Without dead ends: 39 [2024-11-18 12:58:13,268 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 12:58:13,268 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 12:58:13,269 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 116 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 12:58:13,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-18 12:58:13,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 35. [2024-11-18 12:58:13,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 29 states have (on average 1.206896551724138) internal successors, (35), 29 states have internal predecessors, (35), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-18 12:58:13,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 43 transitions. [2024-11-18 12:58:13,273 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 43 transitions. Word has length 31 [2024-11-18 12:58:13,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 12:58:13,273 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 43 transitions. [2024-11-18 12:58:13,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-18 12:58:13,273 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2024-11-18 12:58:13,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-18 12:58:13,274 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 12:58:13,274 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 12:58:13,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 12:58:13,274 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 12:58:13,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 12:58:13,275 INFO L85 PathProgramCache]: Analyzing trace with hash 683802393, now seen corresponding path program 1 times [2024-11-18 12:58:13,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 12:58:13,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333111465] [2024-11-18 12:58:13,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 12:58:13,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 12:58:13,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 12:58:13,316 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-18 12:58:13,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 12:58:13,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333111465] [2024-11-18 12:58:13,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333111465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 12:58:13,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 12:58:13,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 12:58:13,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840125146] [2024-11-18 12:58:13,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 12:58:13,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 12:58:13,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 12:58:13,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 12:58:13,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 12:58:13,317 INFO L87 Difference]: Start difference. First operand 35 states and 43 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-18 12:58:13,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 12:58:13,330 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2024-11-18 12:58:13,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 12:58:13,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 37 [2024-11-18 12:58:13,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 12:58:13,331 INFO L225 Difference]: With dead ends: 40 [2024-11-18 12:58:13,331 INFO L226 Difference]: Without dead ends: 35 [2024-11-18 12:58:13,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 12:58:13,332 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 12:58:13,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 12:58:13,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-18 12:58:13,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-11-18 12:58:13,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 29 states have internal predecessors, (34), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-18 12:58:13,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2024-11-18 12:58:13,339 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 37 [2024-11-18 12:58:13,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 12:58:13,339 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2024-11-18 12:58:13,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-18 12:58:13,339 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2024-11-18 12:58:13,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-18 12:58:13,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 12:58:13,340 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 12:58:13,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 12:58:13,340 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 12:58:13,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 12:58:13,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1611689165, now seen corresponding path program 1 times [2024-11-18 12:58:13,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 12:58:13,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990262622] [2024-11-18 12:58:13,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 12:58:13,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 12:58:13,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 12:58:13,395 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-18 12:58:13,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 12:58:13,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990262622] [2024-11-18 12:58:13,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990262622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 12:58:13,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 12:58:13,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 12:58:13,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426711682] [2024-11-18 12:58:13,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 12:58:13,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 12:58:13,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 12:58:13,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 12:58:13,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 12:58:13,397 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-18 12:58:13,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 12:58:13,420 INFO L93 Difference]: Finished difference Result 50 states and 60 transitions. [2024-11-18 12:58:13,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 12:58:13,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 40 [2024-11-18 12:58:13,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 12:58:13,421 INFO L225 Difference]: With dead ends: 50 [2024-11-18 12:58:13,421 INFO L226 Difference]: Without dead ends: 43 [2024-11-18 12:58:13,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 12:58:13,422 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 9 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 12:58:13,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 70 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 12:58:13,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-18 12:58:13,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 36. [2024-11-18 12:58:13,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 30 states have (on average 1.1666666666666667) internal successors, (35), 30 states have internal predecessors, (35), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-18 12:58:13,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2024-11-18 12:58:13,429 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 40 [2024-11-18 12:58:13,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 12:58:13,430 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2024-11-18 12:58:13,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-18 12:58:13,431 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2024-11-18 12:58:13,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-18 12:58:13,431 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 12:58:13,431 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 12:58:13,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 12:58:13,431 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 12:58:13,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 12:58:13,432 INFO L85 PathProgramCache]: Analyzing trace with hash 35157834, now seen corresponding path program 1 times [2024-11-18 12:58:13,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 12:58:13,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733990639] [2024-11-18 12:58:13,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 12:58:13,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 12:58:13,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 12:58:13,486 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-18 12:58:13,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 12:58:13,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733990639] [2024-11-18 12:58:13,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733990639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 12:58:13,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 12:58:13,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 12:58:13,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130579164] [2024-11-18 12:58:13,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 12:58:13,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 12:58:13,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 12:58:13,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 12:58:13,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 12:58:13,489 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-18 12:58:13,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 12:58:13,500 INFO L93 Difference]: Finished difference Result 53 states and 65 transitions. [2024-11-18 12:58:13,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 12:58:13,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 42 [2024-11-18 12:58:13,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 12:58:13,503 INFO L225 Difference]: With dead ends: 53 [2024-11-18 12:58:13,503 INFO L226 Difference]: Without dead ends: 39 [2024-11-18 12:58:13,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 12:58:13,504 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 3 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 12:58:13,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 75 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 12:58:13,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-18 12:58:13,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2024-11-18 12:58:13,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 31 states have internal predecessors, (36), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-18 12:58:13,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2024-11-18 12:58:13,512 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 42 [2024-11-18 12:58:13,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 12:58:13,512 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2024-11-18 12:58:13,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-18 12:58:13,512 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2024-11-18 12:58:13,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-18 12:58:13,513 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 12:58:13,513 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 12:58:13,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 12:58:13,513 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 12:58:13,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 12:58:13,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1234560462, now seen corresponding path program 1 times [2024-11-18 12:58:13,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 12:58:13,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521032828] [2024-11-18 12:58:13,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 12:58:13,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 12:58:13,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 12:58:13,582 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-18 12:58:13,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 12:58:13,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521032828] [2024-11-18 12:58:13,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521032828] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 12:58:13,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159104861] [2024-11-18 12:58:13,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 12:58:13,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 12:58:13,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 12:58:13,587 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) [2024-11-18 12:58:13,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 12:58:13,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 12:58:13,671 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 12:58:13,674 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 12:58:13,719 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-18 12:58:13,720 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 12:58:13,758 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-18 12:58:13,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159104861] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 12:58:13,759 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 12:58:13,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-18 12:58:13,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027787604] [2024-11-18 12:58:13,760 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 12:58:13,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 12:58:13,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 12:58:13,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 12:58:13,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-18 12:58:13,761 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-18 12:58:13,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 12:58:13,781 INFO L93 Difference]: Finished difference Result 61 states and 77 transitions. [2024-11-18 12:58:13,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 12:58:13,782 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 45 [2024-11-18 12:58:13,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 12:58:13,783 INFO L225 Difference]: With dead ends: 61 [2024-11-18 12:58:13,783 INFO L226 Difference]: Without dead ends: 46 [2024-11-18 12:58:13,783 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-18 12:58:13,784 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 11 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 12:58:13,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 114 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 12:58:13,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-18 12:58:13,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-18 12:58:13,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 40 states have (on average 1.2) internal successors, (48), 40 states have internal predecessors, (48), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-18 12:58:13,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 56 transitions. [2024-11-18 12:58:13,788 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 56 transitions. Word has length 45 [2024-11-18 12:58:13,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 12:58:13,788 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 56 transitions. [2024-11-18 12:58:13,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-18 12:58:13,789 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 56 transitions. [2024-11-18 12:58:13,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-18 12:58:13,789 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 12:58:13,789 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 12:58:13,805 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 12:58:13,996 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 [2024-11-18 12:58:13,997 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 12:58:13,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 12:58:13,997 INFO L85 PathProgramCache]: Analyzing trace with hash 657433930, now seen corresponding path program 2 times [2024-11-18 12:58:13,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 12:58:13,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118683927] [2024-11-18 12:58:13,998 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-18 12:58:13,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 12:58:14,014 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-18 12:58:14,015 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 12:58:14,064 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-18 12:58:14,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 12:58:14,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118683927] [2024-11-18 12:58:14,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118683927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 12:58:14,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 12:58:14,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 12:58:14,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065143726] [2024-11-18 12:58:14,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 12:58:14,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 12:58:14,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 12:58:14,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 12:58:14,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 12:58:14,067 INFO L87 Difference]: Start difference. First operand 46 states and 56 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-18 12:58:14,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 12:58:14,080 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2024-11-18 12:58:14,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 12:58:14,081 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 54 [2024-11-18 12:58:14,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 12:58:14,081 INFO L225 Difference]: With dead ends: 52 [2024-11-18 12:58:14,083 INFO L226 Difference]: Without dead ends: 46 [2024-11-18 12:58:14,083 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 12:58:14,083 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 0 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 12:58:14,083 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 12:58:14,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-18 12:58:14,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-18 12:58:14,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 40 states have (on average 1.175) internal successors, (47), 40 states have internal predecessors, (47), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-18 12:58:14,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 55 transitions. [2024-11-18 12:58:14,087 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 55 transitions. Word has length 54 [2024-11-18 12:58:14,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 12:58:14,087 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 55 transitions. [2024-11-18 12:58:14,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-18 12:58:14,087 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 55 transitions. [2024-11-18 12:58:14,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-18 12:58:14,088 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 12:58:14,088 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 12:58:14,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 12:58:14,089 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 12:58:14,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 12:58:14,089 INFO L85 PathProgramCache]: Analyzing trace with hash 2116133056, now seen corresponding path program 1 times [2024-11-18 12:58:14,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 12:58:14,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922061527] [2024-11-18 12:58:14,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 12:58:14,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 12:58:14,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 12:58:14,165 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-18 12:58:14,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 12:58:14,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922061527] [2024-11-18 12:58:14,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922061527] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 12:58:14,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [311511064] [2024-11-18 12:58:14,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 12:58:14,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 12:58:14,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 12:58:14,168 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) [2024-11-18 12:58:14,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 12:58:14,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 12:58:14,243 INFO L255 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 12:58:14,245 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 12:58:14,283 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-18 12:58:14,284 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 12:58:14,332 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-18 12:58:14,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [311511064] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 12:58:14,333 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 12:58:14,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-18 12:58:14,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930937033] [2024-11-18 12:58:14,333 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 12:58:14,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 12:58:14,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 12:58:14,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 12:58:14,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-18 12:58:14,335 INFO L87 Difference]: Start difference. First operand 46 states and 55 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-18 12:58:14,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 12:58:14,373 INFO L93 Difference]: Finished difference Result 104 states and 130 transitions. [2024-11-18 12:58:14,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 12:58:14,374 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 57 [2024-11-18 12:58:14,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 12:58:14,375 INFO L225 Difference]: With dead ends: 104 [2024-11-18 12:58:14,378 INFO L226 Difference]: Without dead ends: 97 [2024-11-18 12:58:14,379 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-18 12:58:14,379 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 20 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 12:58:14,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 132 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 12:58:14,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-18 12:58:14,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2024-11-18 12:58:14,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 91 states have (on average 1.2417582417582418) internal successors, (113), 91 states have internal predecessors, (113), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-18 12:58:14,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 121 transitions. [2024-11-18 12:58:14,388 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 121 transitions. Word has length 57 [2024-11-18 12:58:14,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 12:58:14,388 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 121 transitions. [2024-11-18 12:58:14,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-18 12:58:14,389 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 121 transitions. [2024-11-18 12:58:14,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-18 12:58:14,392 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 12:58:14,392 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 12:58:14,407 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-18 12:58:14,592 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,SelfDestructingSolverStorable10 [2024-11-18 12:58:14,593 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 12:58:14,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 12:58:14,593 INFO L85 PathProgramCache]: Analyzing trace with hash 2022113907, now seen corresponding path program 2 times [2024-11-18 12:58:14,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 12:58:14,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707194176] [2024-11-18 12:58:14,593 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-18 12:58:14,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 12:58:14,651 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-18 12:58:14,651 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 12:58:15,292 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 196 proven. 215 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-18 12:58:15,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 12:58:15,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707194176] [2024-11-18 12:58:15,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707194176] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 12:58:15,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998393354] [2024-11-18 12:58:15,294 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-18 12:58:15,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 12:58:15,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 12:58:15,296 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) [2024-11-18 12:58:15,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-18 12:58:15,404 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-18 12:58:15,405 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 12:58:15,407 INFO L255 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-18 12:58:15,410 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 12:58:15,680 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 181 proven. 22 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2024-11-18 12:58:15,681 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 12:58:15,838 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-18 12:58:15,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 19 [2024-11-18 12:58:15,887 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 181 proven. 22 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2024-11-18 12:58:15,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1998393354] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 12:58:15,887 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 12:58:15,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 10, 10] total 32 [2024-11-18 12:58:15,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641657896] [2024-11-18 12:58:15,888 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 12:58:15,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-18 12:58:15,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 12:58:15,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-18 12:58:15,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=853, Unknown=0, NotChecked=0, Total=992 [2024-11-18 12:58:15,889 INFO L87 Difference]: Start difference. First operand 97 states and 121 transitions. Second operand has 32 states, 32 states have (on average 3.28125) internal successors, (105), 32 states have internal predecessors, (105), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-18 12:58:17,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 12:58:17,291 INFO L93 Difference]: Finished difference Result 334 states and 430 transitions. [2024-11-18 12:58:17,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2024-11-18 12:58:17,292 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 3.28125) internal successors, (105), 32 states have internal predecessors, (105), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 108 [2024-11-18 12:58:17,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 12:58:17,293 INFO L225 Difference]: With dead ends: 334 [2024-11-18 12:58:17,293 INFO L226 Difference]: Without dead ends: 210 [2024-11-18 12:58:17,295 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2104 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1009, Invalid=5963, Unknown=0, NotChecked=0, Total=6972 [2024-11-18 12:58:17,295 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 194 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 995 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 12:58:17,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 559 Invalid, 999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 995 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 12:58:17,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-11-18 12:58:17,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 193. [2024-11-18 12:58:17,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 187 states have (on average 1.2620320855614973) internal successors, (236), 187 states have internal predecessors, (236), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-18 12:58:17,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 244 transitions. [2024-11-18 12:58:17,306 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 244 transitions. Word has length 108 [2024-11-18 12:58:17,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 12:58:17,306 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 244 transitions. [2024-11-18 12:58:17,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 3.28125) internal successors, (105), 32 states have internal predecessors, (105), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-18 12:58:17,307 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 244 transitions. [2024-11-18 12:58:17,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-18 12:58:17,307 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 12:58:17,307 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 11, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 12:58:17,321 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-18 12:58:17,508 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 [2024-11-18 12:58:17,508 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 12:58:17,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 12:58:17,509 INFO L85 PathProgramCache]: Analyzing trace with hash 2116550389, now seen corresponding path program 1 times [2024-11-18 12:58:17,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 12:58:17,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327811790] [2024-11-18 12:58:17,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 12:58:17,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 12:58:17,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 12:58:18,090 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 244 proven. 83 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2024-11-18 12:58:18,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 12:58:18,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327811790] [2024-11-18 12:58:18,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327811790] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 12:58:18,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [239867451] [2024-11-18 12:58:18,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 12:58:18,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 12:58:18,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 12:58:18,093 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 12:58:18,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-18 12:58:18,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 12:58:18,183 INFO L255 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-18 12:58:18,186 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 12:58:18,570 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 245 proven. 97 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-11-18 12:58:18,572 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 12:58:18,823 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-18 12:58:18,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 19 [2024-11-18 12:58:18,897 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 247 proven. 95 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-11-18 12:58:18,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [239867451] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 12:58:18,897 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 12:58:18,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 14, 14] total 43 [2024-11-18 12:58:18,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412664081] [2024-11-18 12:58:18,898 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 12:58:18,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-11-18 12:58:18,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 12:58:18,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-11-18 12:58:18,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=1639, Unknown=0, NotChecked=0, Total=1806 [2024-11-18 12:58:18,899 INFO L87 Difference]: Start difference. First operand 193 states and 244 transitions. Second operand has 43 states, 43 states have (on average 2.813953488372093) internal successors, (121), 43 states have internal predecessors, (121), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-18 12:58:25,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 12:58:25,461 INFO L93 Difference]: Finished difference Result 1342 states and 1759 transitions. [2024-11-18 12:58:25,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 253 states. [2024-11-18 12:58:25,462 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 2.813953488372093) internal successors, (121), 43 states have internal predecessors, (121), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 108 [2024-11-18 12:58:25,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 12:58:25,465 INFO L225 Difference]: With dead ends: 1342 [2024-11-18 12:58:25,465 INFO L226 Difference]: Without dead ends: 1126 [2024-11-18 12:58:25,479 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 273 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31403 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=6257, Invalid=69093, Unknown=0, NotChecked=0, Total=75350 [2024-11-18 12:58:25,479 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 837 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 3845 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 3874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 3845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-18 12:58:25,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [837 Valid, 778 Invalid, 3874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 3845 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-18 12:58:25,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2024-11-18 12:58:25,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 825. [2024-11-18 12:58:25,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 825 states, 819 states have (on average 1.304029304029304) internal successors, (1068), 819 states have internal predecessors, (1068), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-18 12:58:25,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1076 transitions. [2024-11-18 12:58:25,525 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1076 transitions. Word has length 108 [2024-11-18 12:58:25,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 12:58:25,525 INFO L471 AbstractCegarLoop]: Abstraction has 825 states and 1076 transitions. [2024-11-18 12:58:25,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.813953488372093) internal successors, (121), 43 states have internal predecessors, (121), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-18 12:58:25,526 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1076 transitions. [2024-11-18 12:58:25,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-18 12:58:25,527 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 12:58:25,527 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 10, 6, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 12:58:25,542 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-18 12:58:25,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 12:58:25,731 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 12:58:25,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 12:58:25,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1180151159, now seen corresponding path program 2 times [2024-11-18 12:58:25,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 12:58:25,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656531903] [2024-11-18 12:58:25,732 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-18 12:58:25,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 12:58:25,766 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-18 12:58:25,766 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 12:58:26,303 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 18 proven. 397 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-18 12:58:26,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 12:58:26,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656531903] [2024-11-18 12:58:26,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656531903] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 12:58:26,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [299481991] [2024-11-18 12:58:26,304 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-18 12:58:26,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 12:58:26,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 12:58:26,306 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 12:58:26,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-18 12:58:26,392 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-18 12:58:26,392 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 12:58:26,397 INFO L255 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-18 12:58:26,401 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 12:58:26,726 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-18 12:58:26,746 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 207 proven. 6 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2024-11-18 12:58:26,746 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 12:58:26,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-18 12:58:27,350 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 207 proven. 6 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2024-11-18 12:58:27,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [299481991] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 12:58:27,351 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 12:58:27,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 13, 13] total 37 [2024-11-18 12:58:27,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791218884] [2024-11-18 12:58:27,351 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 12:58:27,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-18 12:58:27,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 12:58:27,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-18 12:58:27,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=1184, Unknown=0, NotChecked=0, Total=1332 [2024-11-18 12:58:27,354 INFO L87 Difference]: Start difference. First operand 825 states and 1076 transitions. Second operand has 37 states, 37 states have (on average 3.5675675675675675) internal successors, (132), 37 states have internal predecessors, (132), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-18 12:58:28,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 12:58:28,546 INFO L93 Difference]: Finished difference Result 2512 states and 3292 transitions. [2024-11-18 12:58:28,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-18 12:58:28,547 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 3.5675675675675675) internal successors, (132), 37 states have internal predecessors, (132), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 108 [2024-11-18 12:58:28,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 12:58:28,552 INFO L225 Difference]: With dead ends: 2512 [2024-11-18 12:58:28,552 INFO L226 Difference]: Without dead ends: 1560 [2024-11-18 12:58:28,554 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 197 SyntacticMatches, 3 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 922 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=550, Invalid=3356, Unknown=0, NotChecked=0, Total=3906 [2024-11-18 12:58:28,554 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 85 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 1676 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 1676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 12:58:28,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 721 Invalid, 1676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1676 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 12:58:28,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1560 states. [2024-11-18 12:58:28,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1560 to 1504. [2024-11-18 12:58:28,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1504 states, 1495 states have (on average 1.3063545150501672) internal successors, (1953), 1495 states have internal predecessors, (1953), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (12), 7 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-18 12:58:28,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1504 states to 1504 states and 1971 transitions. [2024-11-18 12:58:28,630 INFO L78 Accepts]: Start accepts. Automaton has 1504 states and 1971 transitions. Word has length 108 [2024-11-18 12:58:28,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 12:58:28,630 INFO L471 AbstractCegarLoop]: Abstraction has 1504 states and 1971 transitions. [2024-11-18 12:58:28,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 3.5675675675675675) internal successors, (132), 37 states have internal predecessors, (132), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-18 12:58:28,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1504 states and 1971 transitions. [2024-11-18 12:58:28,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-18 12:58:28,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 12:58:28,633 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 10, 6, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 12:58:28,647 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-18 12:58:28,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-18 12:58:28,838 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 12:58:28,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 12:58:28,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1712564275, now seen corresponding path program 3 times [2024-11-18 12:58:28,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 12:58:28,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930041471] [2024-11-18 12:58:28,839 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-18 12:58:28,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 12:58:28,863 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-18 12:58:28,863 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 12:58:29,165 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 6 proven. 86 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2024-11-18 12:58:29,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 12:58:29,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930041471] [2024-11-18 12:58:29,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930041471] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 12:58:29,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155366102] [2024-11-18 12:58:29,166 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-18 12:58:29,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 12:58:29,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 12:58:29,167 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 12:58:29,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-18 12:58:29,243 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-18 12:58:29,244 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 12:58:29,245 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-18 12:58:29,247 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 12:58:29,514 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-18 12:58:29,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 15 [2024-11-18 12:58:29,613 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 3 proven. 74 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2024-11-18 12:58:29,613 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 12:58:29,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-18 12:58:29,996 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 3 proven. 74 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2024-11-18 12:58:29,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [155366102] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 12:58:29,997 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 12:58:29,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 34 [2024-11-18 12:58:29,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047294669] [2024-11-18 12:58:29,997 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 12:58:29,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-18 12:58:29,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 12:58:29,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-18 12:58:29,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=1011, Unknown=0, NotChecked=0, Total=1122 [2024-11-18 12:58:29,998 INFO L87 Difference]: Start difference. First operand 1504 states and 1971 transitions. Second operand has 34 states, 34 states have (on average 3.0) internal successors, (102), 34 states have internal predecessors, (102), 7 states have call successors, (10), 1 states have call predecessors, (10), 4 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-18 12:58:31,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 12:58:31,093 INFO L93 Difference]: Finished difference Result 4576 states and 5783 transitions. [2024-11-18 12:58:31,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-11-18 12:58:31,093 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 3.0) internal successors, (102), 34 states have internal predecessors, (102), 7 states have call successors, (10), 1 states have call predecessors, (10), 4 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 108 [2024-11-18 12:58:31,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 12:58:31,106 INFO L225 Difference]: With dead ends: 4576 [2024-11-18 12:58:31,106 INFO L226 Difference]: Without dead ends: 4569 [2024-11-18 12:58:31,108 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 198 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 903 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=677, Invalid=4015, Unknown=0, NotChecked=0, Total=4692 [2024-11-18 12:58:31,108 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 140 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 12:58:31,109 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 437 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 12:58:31,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4569 states. [2024-11-18 12:58:31,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4569 to 2926. [2024-11-18 12:58:31,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2926 states, 2914 states have (on average 1.3071379547014412) internal successors, (3809), 2913 states have internal predecessors, (3809), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (18), 11 states have call predecessors, (18), 9 states have call successors, (18) [2024-11-18 12:58:31,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2926 states to 2926 states and 3836 transitions. [2024-11-18 12:58:31,272 INFO L78 Accepts]: Start accepts. Automaton has 2926 states and 3836 transitions. Word has length 108 [2024-11-18 12:58:31,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 12:58:31,272 INFO L471 AbstractCegarLoop]: Abstraction has 2926 states and 3836 transitions. [2024-11-18 12:58:31,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 3.0) internal successors, (102), 34 states have internal predecessors, (102), 7 states have call successors, (10), 1 states have call predecessors, (10), 4 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-18 12:58:31,273 INFO L276 IsEmpty]: Start isEmpty. Operand 2926 states and 3836 transitions. [2024-11-18 12:58:31,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-18 12:58:31,276 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 12:58:31,276 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 11, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 12:58:31,290 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-18 12:58:31,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-18 12:58:31,477 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 12:58:31,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 12:58:31,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1125758261, now seen corresponding path program 4 times [2024-11-18 12:58:31,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 12:58:31,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731190446] [2024-11-18 12:58:31,478 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-18 12:58:31,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 12:58:31,496 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-18 12:58:31,496 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 12:58:31,848 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 95 proven. 211 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2024-11-18 12:58:31,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 12:58:31,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731190446] [2024-11-18 12:58:31,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731190446] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 12:58:31,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736355837] [2024-11-18 12:58:31,849 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-18 12:58:31,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 12:58:31,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 12:58:31,851 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 12:58:31,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-18 12:58:31,955 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-18 12:58:31,955 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 12:58:31,956 INFO L255 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-18 12:58:31,959 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 12:58:32,143 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-18 12:58:32,160 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 324 proven. 76 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-18 12:58:32,160 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 12:58:32,344 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-11-18 12:58:32,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 9 [2024-11-18 12:58:32,358 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 273 proven. 127 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-18 12:58:32,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1736355837] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 12:58:32,358 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 12:58:32,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12, 12] total 31 [2024-11-18 12:58:32,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51533677] [2024-11-18 12:58:32,359 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 12:58:32,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-18 12:58:32,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 12:58:32,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-18 12:58:32,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=826, Unknown=0, NotChecked=0, Total=930 [2024-11-18 12:58:32,360 INFO L87 Difference]: Start difference. First operand 2926 states and 3836 transitions. Second operand has 31 states, 31 states have (on average 3.806451612903226) internal successors, (118), 31 states have internal predecessors, (118), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-18 12:58:34,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 12:58:34,442 INFO L93 Difference]: Finished difference Result 8724 states and 11177 transitions. [2024-11-18 12:58:34,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2024-11-18 12:58:34,447 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.806451612903226) internal successors, (118), 31 states have internal predecessors, (118), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 108 [2024-11-18 12:58:34,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 12:58:34,467 INFO L225 Difference]: With dead ends: 8724 [2024-11-18 12:58:34,467 INFO L226 Difference]: Without dead ends: 7259 [2024-11-18 12:58:34,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 199 SyntacticMatches, 2 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5469 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1777, Invalid=14993, Unknown=0, NotChecked=0, Total=16770 [2024-11-18 12:58:34,495 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 104 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 1510 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 1518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 12:58:34,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 668 Invalid, 1518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1510 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 12:58:34,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7259 states. [2024-11-18 12:58:34,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7259 to 5452. [2024-11-18 12:58:34,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5452 states, 5440 states have (on average 1.2667279411764707) internal successors, (6891), 5439 states have internal predecessors, (6891), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (18), 11 states have call predecessors, (18), 9 states have call successors, (18) [2024-11-18 12:58:34,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5452 states to 5452 states and 6918 transitions. [2024-11-18 12:58:34,839 INFO L78 Accepts]: Start accepts. Automaton has 5452 states and 6918 transitions. Word has length 108 [2024-11-18 12:58:34,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 12:58:34,839 INFO L471 AbstractCegarLoop]: Abstraction has 5452 states and 6918 transitions. [2024-11-18 12:58:34,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 3.806451612903226) internal successors, (118), 31 states have internal predecessors, (118), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-18 12:58:34,840 INFO L276 IsEmpty]: Start isEmpty. Operand 5452 states and 6918 transitions. [2024-11-18 12:58:34,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-18 12:58:34,846 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 12:58:34,846 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 13, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 12:58:34,860 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-18 12:58:35,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 12:58:35,051 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 12:58:35,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 12:58:35,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1584253835, now seen corresponding path program 5 times [2024-11-18 12:58:35,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 12:58:35,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956027809] [2024-11-18 12:58:35,052 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-18 12:58:35,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 12:58:35,089 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 20 check-sat command(s) [2024-11-18 12:58:35,089 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 12:58:35,492 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 193 proven. 224 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-18 12:58:35,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 12:58:35,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956027809] [2024-11-18 12:58:35,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956027809] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 12:58:35,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563315860] [2024-11-18 12:58:35,493 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-18 12:58:35,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 12:58:35,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 12:58:35,495 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 12:58:35,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-18 12:58:35,602 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 20 check-sat command(s) [2024-11-18 12:58:35,602 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 12:58:35,604 INFO L255 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-18 12:58:35,626 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 12:58:35,930 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 164 proven. 231 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-11-18 12:58:35,930 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 12:58:36,050 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-18 12:58:36,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 19 [2024-11-18 12:58:36,148 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 164 proven. 231 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-11-18 12:58:36,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563315860] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 12:58:36,148 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 12:58:36,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 13, 13] total 38 [2024-11-18 12:58:36,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712140164] [2024-11-18 12:58:36,148 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 12:58:36,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-18 12:58:36,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 12:58:36,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-18 12:58:36,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1220, Unknown=0, NotChecked=0, Total=1406 [2024-11-18 12:58:36,150 INFO L87 Difference]: Start difference. First operand 5452 states and 6918 transitions. Second operand has 38 states, 38 states have (on average 3.710526315789474) internal successors, (141), 38 states have internal predecessors, (141), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-18 12:58:44,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 12:58:44,261 INFO L93 Difference]: Finished difference Result 29583 states and 37744 transitions. [2024-11-18 12:58:44,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 289 states. [2024-11-18 12:58:44,261 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 3.710526315789474) internal successors, (141), 38 states have internal predecessors, (141), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 108 [2024-11-18 12:58:44,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 12:58:44,321 INFO L225 Difference]: With dead ends: 29583 [2024-11-18 12:58:44,321 INFO L226 Difference]: Without dead ends: 27612 [2024-11-18 12:58:44,335 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 503 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 307 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41008 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=10456, Invalid=84716, Unknown=0, NotChecked=0, Total=95172 [2024-11-18 12:58:44,336 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 694 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 2729 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 2750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-18 12:58:44,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 564 Invalid, 2750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2729 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-18 12:58:44,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27612 states. [2024-11-18 12:58:45,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27612 to 12754. [2024-11-18 12:58:45,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12754 states, 12742 states have (on average 1.2810390833464134) internal successors, (16323), 12741 states have internal predecessors, (16323), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (18), 11 states have call predecessors, (18), 9 states have call successors, (18) [2024-11-18 12:58:45,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12754 states to 12754 states and 16350 transitions. [2024-11-18 12:58:45,597 INFO L78 Accepts]: Start accepts. Automaton has 12754 states and 16350 transitions. Word has length 108 [2024-11-18 12:58:45,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 12:58:45,598 INFO L471 AbstractCegarLoop]: Abstraction has 12754 states and 16350 transitions. [2024-11-18 12:58:45,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.710526315789474) internal successors, (141), 38 states have internal predecessors, (141), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-18 12:58:45,598 INFO L276 IsEmpty]: Start isEmpty. Operand 12754 states and 16350 transitions. [2024-11-18 12:58:45,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-18 12:58:45,615 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 12:58:45,615 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 13, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 12:58:45,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-18 12:58:45,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-18 12:58:45,816 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 12:58:45,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 12:58:45,816 INFO L85 PathProgramCache]: Analyzing trace with hash -344330763, now seen corresponding path program 6 times [2024-11-18 12:58:45,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 12:58:45,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996269392] [2024-11-18 12:58:45,817 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-18 12:58:45,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 12:58:45,848 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2024-11-18 12:58:45,849 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 12:58:46,177 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 9 proven. 108 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-11-18 12:58:46,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 12:58:46,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996269392] [2024-11-18 12:58:46,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996269392] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 12:58:46,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20934543] [2024-11-18 12:58:46,179 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-18 12:58:46,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 12:58:46,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 12:58:46,181 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 12:58:46,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-18 12:58:46,273 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2024-11-18 12:58:46,273 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 12:58:46,274 INFO L255 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-18 12:58:46,276 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 12:58:46,494 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-18 12:58:46,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 15 [2024-11-18 12:58:46,554 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 9 proven. 111 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2024-11-18 12:58:46,554 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 12:58:46,667 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-18 12:58:48,812 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 12 proven. 111 refuted. 0 times theorem prover too weak. 359 trivial. 0 not checked. [2024-11-18 12:58:48,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20934543] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 12:58:48,813 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 12:58:48,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 17] total 28 [2024-11-18 12:58:48,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698152989] [2024-11-18 12:58:48,813 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 12:58:48,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-18 12:58:48,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 12:58:48,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-18 12:58:48,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=672, Unknown=0, NotChecked=0, Total=756 [2024-11-18 12:58:48,815 INFO L87 Difference]: Start difference. First operand 12754 states and 16350 transitions. Second operand has 28 states, 28 states have (on average 3.0) internal successors, (84), 28 states have internal predecessors, (84), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (10), 8 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-18 12:58:51,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 12:58:51,579 INFO L93 Difference]: Finished difference Result 26193 states and 33507 transitions. [2024-11-18 12:58:51,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-18 12:58:51,580 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.0) internal successors, (84), 28 states have internal predecessors, (84), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (10), 8 states have call predecessors, (10), 5 states have call successors, (10) Word has length 108 [2024-11-18 12:58:51,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 12:58:51,626 INFO L225 Difference]: With dead ends: 26193 [2024-11-18 12:58:51,627 INFO L226 Difference]: Without dead ends: 26186 [2024-11-18 12:58:51,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 204 SyntacticMatches, 4 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 615 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=449, Invalid=2413, Unknown=0, NotChecked=0, Total=2862 [2024-11-18 12:58:51,636 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 78 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 12:58:51,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 498 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 12:58:51,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26186 states. [2024-11-18 12:58:53,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26186 to 20385. [2024-11-18 12:58:53,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20385 states, 20372 states have (on average 1.2821519732966817) internal successors, (26120), 20369 states have internal predecessors, (26120), 10 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (20), 14 states have call predecessors, (20), 10 states have call successors, (20) [2024-11-18 12:58:53,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20385 states to 20385 states and 26150 transitions. [2024-11-18 12:58:53,697 INFO L78 Accepts]: Start accepts. Automaton has 20385 states and 26150 transitions. Word has length 108 [2024-11-18 12:58:53,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 12:58:53,698 INFO L471 AbstractCegarLoop]: Abstraction has 20385 states and 26150 transitions. [2024-11-18 12:58:53,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.0) internal successors, (84), 28 states have internal predecessors, (84), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (10), 8 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-18 12:58:53,698 INFO L276 IsEmpty]: Start isEmpty. Operand 20385 states and 26150 transitions. [2024-11-18 12:58:53,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-18 12:58:53,742 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 12:58:53,742 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 14, 4, 4, 4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 12:58:53,756 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-18 12:58:53,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-18 12:58:53,943 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 12:58:53,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 12:58:53,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1365399117, now seen corresponding path program 7 times [2024-11-18 12:58:53,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 12:58:53,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634468136] [2024-11-18 12:58:53,944 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-18 12:58:53,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 12:58:53,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 12:58:54,296 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 7 proven. 385 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-18 12:58:54,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 12:58:54,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634468136] [2024-11-18 12:58:54,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634468136] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 12:58:54,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811569404] [2024-11-18 12:58:54,296 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-18 12:58:54,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 12:58:54,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 12:58:54,298 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 12:58:54,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-18 12:58:54,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 12:58:54,396 INFO L255 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-18 12:58:54,398 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 12:58:55,098 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-18 12:58:55,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 20 [2024-11-18 12:58:55,113 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 7 proven. 384 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-18 12:58:55,113 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 12:58:55,441 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-18 12:58:55,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 19 [2024-11-18 12:58:55,479 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 23 proven. 367 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-11-18 12:58:55,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811569404] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 12:58:55,479 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 12:58:55,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 16] total 44 [2024-11-18 12:58:55,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395814487] [2024-11-18 12:58:55,479 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 12:58:55,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-11-18 12:58:55,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 12:58:55,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-11-18 12:58:55,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=1702, Unknown=0, NotChecked=0, Total=1892 [2024-11-18 12:58:55,481 INFO L87 Difference]: Start difference. First operand 20385 states and 26150 transitions. Second operand has 44 states, 44 states have (on average 3.340909090909091) internal successors, (147), 44 states have internal predecessors, (147), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-18 12:58:58,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 12:58:58,057 INFO L93 Difference]: Finished difference Result 26670 states and 33878 transitions. [2024-11-18 12:58:58,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-18 12:58:58,058 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 3.340909090909091) internal successors, (147), 44 states have internal predecessors, (147), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 108 [2024-11-18 12:58:58,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 12:58:58,102 INFO L225 Difference]: With dead ends: 26670 [2024-11-18 12:58:58,102 INFO L226 Difference]: Without dead ends: 24178 [2024-11-18 12:58:58,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 867 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=319, Invalid=2761, Unknown=0, NotChecked=0, Total=3080 [2024-11-18 12:58:58,115 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 82 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 1210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 12:58:58,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 933 Invalid, 1210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 12:58:58,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24178 states. [2024-11-18 12:59:00,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24178 to 21777. [2024-11-18 12:59:00,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21777 states, 21764 states have (on average 1.2732034552471971) internal successors, (27710), 21761 states have internal predecessors, (27710), 10 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (20), 14 states have call predecessors, (20), 10 states have call successors, (20) [2024-11-18 12:59:00,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21777 states to 21777 states and 27740 transitions. [2024-11-18 12:59:00,476 INFO L78 Accepts]: Start accepts. Automaton has 21777 states and 27740 transitions. Word has length 108 [2024-11-18 12:59:00,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 12:59:00,477 INFO L471 AbstractCegarLoop]: Abstraction has 21777 states and 27740 transitions. [2024-11-18 12:59:00,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 3.340909090909091) internal successors, (147), 44 states have internal predecessors, (147), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-18 12:59:00,477 INFO L276 IsEmpty]: Start isEmpty. Operand 21777 states and 27740 transitions. [2024-11-18 12:59:00,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-18 12:59:00,511 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 12:59:00,511 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 12:59:00,524 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-18 12:59:00,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 12:59:00,712 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 12:59:00,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 12:59:00,712 INFO L85 PathProgramCache]: Analyzing trace with hash -609406221, now seen corresponding path program 8 times [2024-11-18 12:59:00,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 12:59:00,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802242565] [2024-11-18 12:59:00,712 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-18 12:59:00,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 12:59:00,737 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-18 12:59:00,738 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-18 12:59:00,738 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-18 12:59:00,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 12:59:00,787 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-18 12:59:00,788 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-18 12:59:00,788 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 12:59:00,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-18 12:59:00,793 INFO L407 BasicCegarLoop]: Path program histogram: [8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 12:59:00,841 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 12:59:00,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:59:00 BoogieIcfgContainer [2024-11-18 12:59:00,844 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 12:59:00,845 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 12:59:00,845 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 12:59:00,845 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 12:59:00,846 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:58:12" (3/4) ... [2024-11-18 12:59:00,847 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-18 12:59:00,909 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-18 12:59:00,909 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 12:59:00,909 INFO L158 Benchmark]: Toolchain (without parser) took 49187.97ms. Allocated memory was 163.6MB in the beginning and 3.4GB in the end (delta: 3.2GB). Free memory was 97.1MB in the beginning and 2.7GB in the end (delta: -2.6GB). Peak memory consumption was 668.0MB. Max. memory is 16.1GB. [2024-11-18 12:59:00,910 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 100.7MB. Free memory is still 62.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 12:59:00,910 INFO L158 Benchmark]: CACSL2BoogieTranslator took 243.34ms. Allocated memory is still 163.6MB. Free memory was 96.9MB in the beginning and 131.7MB in the end (delta: -34.8MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2024-11-18 12:59:00,910 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.98ms. Allocated memory is still 163.6MB. Free memory was 131.7MB in the beginning and 129.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 12:59:00,910 INFO L158 Benchmark]: Boogie Preprocessor took 32.62ms. Allocated memory is still 163.6MB. Free memory was 129.8MB in the beginning and 127.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 12:59:00,910 INFO L158 Benchmark]: RCFGBuilder took 307.36ms. Allocated memory is still 163.6MB. Free memory was 127.5MB in the beginning and 111.6MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-18 12:59:00,910 INFO L158 Benchmark]: TraceAbstraction took 48509.59ms. Allocated memory was 163.6MB in the beginning and 3.4GB in the end (delta: 3.2GB). Free memory was 111.0MB in the beginning and 2.7GB in the end (delta: -2.6GB). Peak memory consumption was 678.2MB. Max. memory is 16.1GB. [2024-11-18 12:59:00,911 INFO L158 Benchmark]: Witness Printer took 64.05ms. Allocated memory is still 3.4GB. Free memory was 2.7GB in the beginning and 2.7GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-18 12:59:00,912 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 100.7MB. Free memory is still 62.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 243.34ms. Allocated memory is still 163.6MB. Free memory was 96.9MB in the beginning and 131.7MB in the end (delta: -34.8MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.98ms. Allocated memory is still 163.6MB. Free memory was 131.7MB in the beginning and 129.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.62ms. Allocated memory is still 163.6MB. Free memory was 129.8MB in the beginning and 127.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 307.36ms. Allocated memory is still 163.6MB. Free memory was 127.5MB in the beginning and 111.6MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 48509.59ms. Allocated memory was 163.6MB in the beginning and 3.4GB in the end (delta: 3.2GB). Free memory was 111.0MB in the beginning and 2.7GB in the end (delta: -2.6GB). Peak memory consumption was 678.2MB. Max. memory is 16.1GB. * Witness Printer took 64.05ms. Allocated memory is still 3.4GB. Free memory was 2.7GB in the beginning and 2.7GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 20]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L56] int x, y, z, w; [L57] x = __VERIFIER_nondet_int() [L58] y = __VERIFIER_nondet_int() [L59] z = __VERIFIER_nondet_int() [L60] w = __VERIFIER_nondet_int() [L61] CALL, EXPR solve(x, y, z, w) [L44] CALL, EXPR check_domain(s0) VAL [\old(x)=2] [L28] COND TRUE x >= 0 && x <= 4 [L28] return 1; VAL [\old(x)=2, \result=1] [L44] RET, EXPR check_domain(s0) VAL [s0=2, s1=0, s2=2, s3=0] [L44] EXPR check_domain(s0) && check_domain(s1) VAL [s0=2, s1=0, s2=2, s3=0] [L44] CALL, EXPR check_domain(s1) VAL [\old(x)=0] [L28] COND TRUE x >= 0 && x <= 4 [L28] return 1; VAL [\old(x)=0, \result=1] [L44] RET, EXPR check_domain(s1) VAL [s0=2, s1=0, s2=2, s3=0] [L44] EXPR check_domain(s0) && check_domain(s1) VAL [s0=2, s1=0, s2=2, s3=0] [L44] EXPR check_domain(s0) && check_domain(s1) && check_domain(s2) VAL [s0=2, s1=0, s2=2, s3=0] [L44] CALL, EXPR check_domain(s2) VAL [\old(x)=2] [L28] COND TRUE x >= 0 && x <= 4 [L28] return 1; VAL [\old(x)=2, \result=1] [L44] RET, EXPR check_domain(s2) VAL [s0=2, s1=0, s2=2, s3=0] [L44] EXPR check_domain(s0) && check_domain(s1) && check_domain(s2) VAL [s0=2, s1=0, s2=2, s3=0] [L44-L45] check_domain(s0) && check_domain(s1) && check_domain(s2) && check_domain(s3) VAL [s0=2, s1=0, s2=2, s3=0] [L45] CALL, EXPR check_domain(s3) VAL [\old(x)=0] [L28] COND TRUE x >= 0 && x <= 4 [L28] return 1; VAL [\old(x)=0, \result=1] [L45] RET, EXPR check_domain(s3) VAL [s0=2, s1=0, s2=2, s3=0] [L44-L45] check_domain(s0) && check_domain(s1) && check_domain(s2) && check_domain(s3) VAL [s0=2, s1=0, s2=2, s3=0] [L44-L45] COND TRUE check_domain(s0) && check_domain(s1) && check_domain(s2) && check_domain(s3) [L46-L47] s0 + s1 + s2 + s3 == 4 && s0 * 0 + s1 * 1 + s2 * 2 + s3 * 3 == 4 && check_sum(s0, s1, s2, s3) VAL [s0=2, s1=0, s2=2, s3=0] [L46-L47] s0 + s1 + s2 + s3 == 4 && s0 * 0 + s1 * 1 + s2 * 2 + s3 * 3 == 4 && check_sum(s0, s1, s2, s3) [L47] CALL, EXPR check_sum(s0, s1, s2, s3) [L33] int s[4] = {s0, s1, s2, s3}; [L33] int s[4] = {s0, s1, s2, s3}; [L33] int s[4] = {s0, s1, s2, s3}; [L33] int s[4] = {s0, s1, s2, s3}; [L33] int s[4] = {s0, s1, s2, s3}; [L34] int i = 0; VAL [i=0, s={5:0}] [L34] COND TRUE i < 4 [L35] int sum = 0; [L36] int j = 0; VAL [i=0, j=0, s={5:0}, sum=0] [L36] COND TRUE j < 4 [L37] EXPR s[j] [L37] COND FALSE !(s[j] == i) [L36] j++ VAL [i=0, j=1, s={5:0}, sum=0] [L36] COND TRUE j < 4 [L37] EXPR s[j] [L37] COND TRUE s[j] == i [L37] sum++ VAL [i=0, j=1, s={5:0}, sum=1] [L36] j++ VAL [i=0, j=2, s={5:0}, sum=1] [L36] COND TRUE j < 4 [L37] EXPR s[j] [L37] COND FALSE !(s[j] == i) [L36] j++ VAL [i=0, j=3, s={5:0}, sum=1] [L36] COND TRUE j < 4 [L37] EXPR s[j] [L37] COND TRUE s[j] == i [L37] sum++ VAL [i=0, j=3, s={5:0}, sum=2] [L36] j++ VAL [i=0, j=4, s={5:0}, sum=2] [L36] COND FALSE !(j < 4) VAL [i=0, s={5:0}, sum=2] [L38] EXPR s[i] [L38] COND FALSE !(sum != s[i]) [L34] i++ VAL [i=1, s={5:0}] [L34] COND TRUE i < 4 [L35] int sum = 0; [L36] int j = 0; VAL [i=1, j=0, s={5:0}, sum=0] [L36] COND TRUE j < 4 [L37] EXPR s[j] [L37] COND FALSE !(s[j] == i) [L36] j++ VAL [i=1, j=1, s={5:0}, sum=0] [L36] COND TRUE j < 4 [L37] EXPR s[j] [L37] COND FALSE !(s[j] == i) [L36] j++ VAL [i=1, j=2, s={5:0}, sum=0] [L36] COND TRUE j < 4 [L37] EXPR s[j] [L37] COND FALSE !(s[j] == i) [L36] j++ VAL [i=1, j=3, s={5:0}, sum=0] [L36] COND TRUE j < 4 [L37] EXPR s[j] [L37] COND FALSE !(s[j] == i) [L36] j++ VAL [i=1, j=4, s={5:0}, sum=0] [L36] COND FALSE !(j < 4) VAL [i=1, s={5:0}, sum=0] [L38] EXPR s[i] [L38] COND FALSE !(sum != s[i]) [L34] i++ VAL [i=2, s={5:0}] [L34] COND TRUE i < 4 [L35] int sum = 0; [L36] int j = 0; VAL [i=2, j=0, s={5:0}, sum=0] [L36] COND TRUE j < 4 [L37] EXPR s[j] [L37] COND TRUE s[j] == i [L37] sum++ VAL [i=2, j=0, s={5:0}, sum=1] [L36] j++ VAL [i=2, j=1, s={5:0}, sum=1] [L36] COND TRUE j < 4 [L37] EXPR s[j] [L37] COND FALSE !(s[j] == i) [L36] j++ VAL [i=2, j=2, s={5:0}, sum=1] [L36] COND TRUE j < 4 [L37] EXPR s[j] [L37] COND TRUE s[j] == i [L37] sum++ VAL [i=2, j=2, s={5:0}, sum=2] [L36] j++ VAL [i=2, j=3, s={5:0}, sum=2] [L36] COND TRUE j < 4 [L37] EXPR s[j] [L37] COND FALSE !(s[j] == i) [L36] j++ VAL [i=2, j=4, s={5:0}, sum=2] [L36] COND FALSE !(j < 4) VAL [i=2, s={5:0}, sum=2] [L38] EXPR s[i] [L38] COND FALSE !(sum != s[i]) [L34] i++ VAL [i=3, s={5:0}] [L34] COND TRUE i < 4 [L35] int sum = 0; [L36] int j = 0; VAL [i=3, j=0, s={5:0}, sum=0] [L36] COND TRUE j < 4 [L37] EXPR s[j] [L37] COND FALSE !(s[j] == i) [L36] j++ VAL [i=3, j=1, s={5:0}, sum=0] [L36] COND TRUE j < 4 [L37] EXPR s[j] [L37] COND FALSE !(s[j] == i) [L36] j++ VAL [i=3, j=2, s={5:0}, sum=0] [L36] COND TRUE j < 4 [L37] EXPR s[j] [L37] COND FALSE !(s[j] == i) [L36] j++ VAL [i=3, j=3, s={5:0}, sum=0] [L36] COND TRUE j < 4 [L37] EXPR s[j] [L37] COND FALSE !(s[j] == i) [L36] j++ VAL [i=3, j=4, s={5:0}, sum=0] [L36] COND FALSE !(j < 4) VAL [i=3, s={5:0}, sum=0] [L38] EXPR s[i] [L38] COND FALSE !(sum != s[i]) [L34] i++ VAL [i=4, s={5:0}] [L34] COND FALSE !(i < 4) VAL [s={5:0}] [L40] return 1; [L33] int s[4] = {s0, s1, s2, s3}; [L40] return 1; VAL [\result=1] [L47] RET, EXPR check_sum(s0, s1, s2, s3) [L46-L47] s0 + s1 + s2 + s3 == 4 && s0 * 0 + s1 * 1 + s2 * 2 + s3 * 3 == 4 && check_sum(s0, s1, s2, s3) [L46-L47] COND TRUE s0 + s1 + s2 + s3 == 4 && s0 * 0 + s1 * 1 + s2 * 2 + s3 * 3 == 4 && check_sum(s0, s1, s2, s3) [L48] return 1; VAL [\result=1] [L61] RET, EXPR solve(x, y, z, w) [L61] CALL __VERIFIER_assert(!solve(x, y, z, w)) [L18] COND TRUE !(cond) [L20] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 48.4s, OverallIterations: 20, TraceHistogramMax: 16, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.1s, AutomataDifference: 26.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2268 SdHoareTripleChecker+Valid, 4.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2257 mSDsluCounter, 6387 SdHoareTripleChecker+Invalid, 4.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5596 mSDsCounter, 159 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13196 IncrementalHoareTripleChecker+Invalid, 13355 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 159 mSolverCounterUnsat, 791 mSDtfsCounter, 13196 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2852 GetRequests, 1792 SyntacticMatches, 11 SemanticMatches, 1049 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83299 ImplicationChecksByTransitivity, 17.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21777occurred in iteration=19, InterpolantAutomatonStates: 929, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.4s AutomataMinimizationTime, 19 MinimizatonAttempts, 26897 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 11.8s InterpolantComputationTime, 2322 NumberOfCodeBlocks, 2071 NumberOfCodeBlocksAsserted, 95 NumberOfCheckSat, 3141 ConstructedInterpolants, 0 QuantifiedInterpolants, 20248 SizeOfPredicates, 78 NumberOfNonLiveVariables, 2935 ConjunctsInSsa, 225 ConjunctsInUnsatCore, 39 InterpolantComputations, 9 PerfectInterpolantSequences, 8169/11918 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-18 12:59:00,945 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE