./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-18.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-18.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bf5dbfe5ddcce299137d12379a3532fad5a0b1d2b0a83e3f07b3ec288904adfe --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 22:52:00,856 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 22:52:00,929 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 22:52:00,935 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 22:52:00,938 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 22:52:00,973 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 22:52:00,974 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 22:52:00,975 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 22:52:00,975 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 22:52:00,976 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 22:52:00,977 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 22:52:00,977 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 22:52:00,978 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 22:52:00,978 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 22:52:00,980 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 22:52:00,980 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 22:52:00,980 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 22:52:00,981 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 22:52:00,981 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 22:52:00,981 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 22:52:00,981 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 22:52:00,982 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 22:52:00,983 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 22:52:00,983 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 22:52:00,984 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 22:52:00,984 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 22:52:00,984 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 22:52:00,985 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 22:52:00,985 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 22:52:00,985 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 22:52:00,986 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 22:52:00,986 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 22:52:00,986 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 22:52:00,986 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 22:52:00,986 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 22:52:00,987 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 22:52:00,987 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 22:52:00,987 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 22:52:00,987 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 22:52:00,988 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 22:52:00,988 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 22:52:00,989 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 22:52:00,989 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf5dbfe5ddcce299137d12379a3532fad5a0b1d2b0a83e3f07b3ec288904adfe [2024-11-18 22:52:01,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 22:52:01,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 22:52:01,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 22:52:01,349 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 22:52:01,349 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 22:52:01,350 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-18.i [2024-11-18 22:52:02,774 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 22:52:03,035 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 22:52:03,035 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-18.i [2024-11-18 22:52:03,049 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a921c0b5/3578b03b26764da9a6c1722f3091ad57/FLAG6b0014ae6 [2024-11-18 22:52:03,372 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a921c0b5/3578b03b26764da9a6c1722f3091ad57 [2024-11-18 22:52:03,375 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 22:52:03,377 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 22:52:03,378 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 22:52:03,378 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 22:52:03,384 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 22:52:03,385 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:52:03" (1/1) ... [2024-11-18 22:52:03,386 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5938740a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:03, skipping insertion in model container [2024-11-18 22:52:03,389 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:52:03" (1/1) ... [2024-11-18 22:52:03,413 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 22:52:03,575 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-18.i[915,928] [2024-11-18 22:52:03,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 22:52:03,620 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 22:52:03,630 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-18.i[915,928] [2024-11-18 22:52:03,649 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 22:52:03,667 INFO L204 MainTranslator]: Completed translation [2024-11-18 22:52:03,668 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:03 WrapperNode [2024-11-18 22:52:03,668 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 22:52:03,669 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 22:52:03,669 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 22:52:03,669 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 22:52:03,676 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:03" (1/1) ... [2024-11-18 22:52:03,690 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:03" (1/1) ... [2024-11-18 22:52:03,718 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 131 [2024-11-18 22:52:03,718 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 22:52:03,719 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 22:52:03,719 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 22:52:03,719 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 22:52:03,733 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:03" (1/1) ... [2024-11-18 22:52:03,733 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:03" (1/1) ... [2024-11-18 22:52:03,735 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:03" (1/1) ... [2024-11-18 22:52:03,747 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 22:52:03,748 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:03" (1/1) ... [2024-11-18 22:52:03,748 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:03" (1/1) ... [2024-11-18 22:52:03,754 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:03" (1/1) ... [2024-11-18 22:52:03,758 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:03" (1/1) ... [2024-11-18 22:52:03,759 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:03" (1/1) ... [2024-11-18 22:52:03,761 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:03" (1/1) ... [2024-11-18 22:52:03,763 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 22:52:03,764 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 22:52:03,764 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 22:52:03,764 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 22:52:03,766 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:03" (1/1) ... [2024-11-18 22:52:03,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 22:52:03,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 22:52:03,812 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 22:52:03,820 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 22:52:03,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 22:52:03,864 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 22:52:03,864 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 22:52:03,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 22:52:03,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 22:52:03,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 22:52:03,979 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 22:52:03,982 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 22:52:04,328 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-18 22:52:04,328 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 22:52:04,341 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 22:52:04,341 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 22:52:04,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:52:04 BoogieIcfgContainer [2024-11-18 22:52:04,342 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 22:52:04,344 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 22:52:04,344 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 22:52:04,347 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 22:52:04,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:52:03" (1/3) ... [2024-11-18 22:52:04,348 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b3edbbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:52:04, skipping insertion in model container [2024-11-18 22:52:04,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:03" (2/3) ... [2024-11-18 22:52:04,349 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b3edbbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:52:04, skipping insertion in model container [2024-11-18 22:52:04,349 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:52:04" (3/3) ... [2024-11-18 22:52:04,350 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-18.i [2024-11-18 22:52:04,365 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 22:52:04,366 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 22:52:04,430 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 22:52:04,438 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;@2ba14943, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 22:52:04,438 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 22:52:04,443 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 42 states have (on average 1.4047619047619047) internal successors, (59), 43 states have internal predecessors, (59), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-18 22:52:04,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-18 22:52:04,458 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:52:04,460 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:52:04,460 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:52:04,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:52:04,467 INFO L85 PathProgramCache]: Analyzing trace with hash 690520621, now seen corresponding path program 1 times [2024-11-18 22:52:04,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:52:04,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718119570] [2024-11-18 22:52:04,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:52:04,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:52:04,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:52:04,809 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-11-18 22:52:04,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:52:04,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718119570] [2024-11-18 22:52:04,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718119570] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 22:52:04,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1287820696] [2024-11-18 22:52:04,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:52:04,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 22:52:04,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 22:52:04,815 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 22:52:04,817 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 22:52:04,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:52:04,958 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 22:52:04,968 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 22:52:04,995 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-11-18 22:52:04,995 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 22:52:04,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1287820696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:52:04,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 22:52:04,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 22:52:04,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201233624] [2024-11-18 22:52:04,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:52:05,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 22:52:05,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:52:05,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 22:52:05,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 22:52:05,033 INFO L87 Difference]: Start difference. First operand has 61 states, 42 states have (on average 1.4047619047619047) internal successors, (59), 43 states have internal predecessors, (59), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 22:52:05,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:52:05,060 INFO L93 Difference]: Finished difference Result 115 states and 192 transitions. [2024-11-18 22:52:05,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 22:52:05,062 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 106 [2024-11-18 22:52:05,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:52:05,069 INFO L225 Difference]: With dead ends: 115 [2024-11-18 22:52:05,069 INFO L226 Difference]: Without dead ends: 57 [2024-11-18 22:52:05,072 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 22:52:05,075 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 22:52:05,076 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 22:52:05,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-11-18 22:52:05,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2024-11-18 22:52:05,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 39 states have (on average 1.3333333333333333) internal successors, (52), 39 states have internal predecessors, (52), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-18 22:52:05,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 84 transitions. [2024-11-18 22:52:05,119 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 84 transitions. Word has length 106 [2024-11-18 22:52:05,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:52:05,120 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 84 transitions. [2024-11-18 22:52:05,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 22:52:05,121 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 84 transitions. [2024-11-18 22:52:05,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-18 22:52:05,123 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:52:05,123 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:52:05,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-18 22:52:05,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-18 22:52:05,325 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:52:05,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:52:05,325 INFO L85 PathProgramCache]: Analyzing trace with hash -173301843, now seen corresponding path program 1 times [2024-11-18 22:52:05,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:52:05,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314456582] [2024-11-18 22:52:05,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:52:05,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:52:05,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:52:05,874 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-18 22:52:05,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:52:05,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314456582] [2024-11-18 22:52:05,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314456582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:52:05,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:52:05,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 22:52:05,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367967504] [2024-11-18 22:52:05,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:52:05,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 22:52:05,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:52:05,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 22:52:05,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 22:52:05,882 INFO L87 Difference]: Start difference. First operand 57 states and 84 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-18 22:52:06,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:52:06,135 INFO L93 Difference]: Finished difference Result 166 states and 247 transitions. [2024-11-18 22:52:06,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 22:52:06,137 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 106 [2024-11-18 22:52:06,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:52:06,140 INFO L225 Difference]: With dead ends: 166 [2024-11-18 22:52:06,140 INFO L226 Difference]: Without dead ends: 112 [2024-11-18 22:52:06,141 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 22:52:06,142 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 62 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 22:52:06,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 199 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 22:52:06,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-18 22:52:06,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 103. [2024-11-18 22:52:06,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 68 states have (on average 1.2941176470588236) internal successors, (88), 68 states have internal predecessors, (88), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-18 22:52:06,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 152 transitions. [2024-11-18 22:52:06,170 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 152 transitions. Word has length 106 [2024-11-18 22:52:06,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:52:06,171 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 152 transitions. [2024-11-18 22:52:06,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-18 22:52:06,172 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 152 transitions. [2024-11-18 22:52:06,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-18 22:52:06,175 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:52:06,176 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:52:06,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 22:52:06,176 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:52:06,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:52:06,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1782216809, now seen corresponding path program 1 times [2024-11-18 22:52:06,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:52:06,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391575398] [2024-11-18 22:52:06,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:52:06,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:52:06,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:52:06,510 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-18 22:52:06,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:52:06,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391575398] [2024-11-18 22:52:06,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391575398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:52:06,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:52:06,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 22:52:06,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295476093] [2024-11-18 22:52:06,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:52:06,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 22:52:06,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:52:06,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 22:52:06,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 22:52:06,516 INFO L87 Difference]: Start difference. First operand 103 states and 152 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-18 22:52:06,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:52:06,618 INFO L93 Difference]: Finished difference Result 188 states and 277 transitions. [2024-11-18 22:52:06,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 22:52:06,620 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 110 [2024-11-18 22:52:06,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:52:06,622 INFO L225 Difference]: With dead ends: 188 [2024-11-18 22:52:06,622 INFO L226 Difference]: Without dead ends: 125 [2024-11-18 22:52:06,622 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 22:52:06,626 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 32 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 22:52:06,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 169 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 22:52:06,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-18 22:52:06,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 101. [2024-11-18 22:52:06,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 66 states have (on average 1.2575757575757576) internal successors, (83), 66 states have internal predecessors, (83), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-18 22:52:06,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 147 transitions. [2024-11-18 22:52:06,662 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 147 transitions. Word has length 110 [2024-11-18 22:52:06,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:52:06,665 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 147 transitions. [2024-11-18 22:52:06,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-18 22:52:06,666 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 147 transitions. [2024-11-18 22:52:06,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-18 22:52:06,667 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:52:06,667 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:52:06,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 22:52:06,667 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:52:06,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:52:06,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1392556565, now seen corresponding path program 1 times [2024-11-18 22:52:06,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:52:06,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039837985] [2024-11-18 22:52:06,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:52:06,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:52:06,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:52:07,269 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-18 22:52:07,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:52:07,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039837985] [2024-11-18 22:52:07,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039837985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:52:07,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:52:07,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 22:52:07,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675236898] [2024-11-18 22:52:07,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:52:07,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 22:52:07,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:52:07,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 22:52:07,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 22:52:07,277 INFO L87 Difference]: Start difference. First operand 101 states and 147 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-18 22:52:07,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:52:07,487 INFO L93 Difference]: Finished difference Result 192 states and 277 transitions. [2024-11-18 22:52:07,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 22:52:07,488 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 111 [2024-11-18 22:52:07,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:52:07,489 INFO L225 Difference]: With dead ends: 192 [2024-11-18 22:52:07,493 INFO L226 Difference]: Without dead ends: 125 [2024-11-18 22:52:07,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 22:52:07,495 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 91 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 22:52:07,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 193 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 22:52:07,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-18 22:52:07,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 117. [2024-11-18 22:52:07,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 82 states have (on average 1.2804878048780488) internal successors, (105), 82 states have internal predecessors, (105), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-18 22:52:07,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 169 transitions. [2024-11-18 22:52:07,525 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 169 transitions. Word has length 111 [2024-11-18 22:52:07,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:52:07,526 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 169 transitions. [2024-11-18 22:52:07,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-18 22:52:07,526 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 169 transitions. [2024-11-18 22:52:07,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-18 22:52:07,527 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:52:07,528 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:52:07,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 22:52:07,528 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:52:07,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:52:07,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1247135902, now seen corresponding path program 1 times [2024-11-18 22:52:07,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:52:07,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356557144] [2024-11-18 22:52:07,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:52:07,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:52:07,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-18 22:52:07,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1849926789] [2024-11-18 22:52:07,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:52:07,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 22:52:07,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 22:52:07,634 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 22:52:07,636 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 22:52:07,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 22:52:07,731 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-18 22:52:07,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 22:52:07,826 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-18 22:52:07,827 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-18 22:52:07,828 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 22:52:07,848 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 22:52:08,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 22:52:08,034 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-18 22:52:08,116 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 22:52:08,119 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 10:52:08 BoogieIcfgContainer [2024-11-18 22:52:08,119 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 22:52:08,120 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 22:52:08,120 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 22:52:08,120 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 22:52:08,121 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:52:04" (3/4) ... [2024-11-18 22:52:08,125 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-18 22:52:08,126 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 22:52:08,127 INFO L158 Benchmark]: Toolchain (without parser) took 4750.08ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 144.3MB in the beginning and 108.0MB in the end (delta: 36.3MB). Peak memory consumption was 71.0MB. Max. memory is 16.1GB. [2024-11-18 22:52:08,127 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 176.2MB. Free memory is still 144.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 22:52:08,130 INFO L158 Benchmark]: CACSL2BoogieTranslator took 290.58ms. Allocated memory is still 176.2MB. Free memory was 144.1MB in the beginning and 135.9MB in the end (delta: 8.3MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2024-11-18 22:52:08,130 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.86ms. Allocated memory is still 176.2MB. Free memory was 135.9MB in the beginning and 133.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 22:52:08,130 INFO L158 Benchmark]: Boogie Preprocessor took 44.23ms. Allocated memory is still 176.2MB. Free memory was 133.5MB in the beginning and 130.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-18 22:52:08,130 INFO L158 Benchmark]: RCFGBuilder took 578.16ms. Allocated memory is still 176.2MB. Free memory was 130.5MB in the beginning and 132.6MB in the end (delta: -2.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-18 22:52:08,131 INFO L158 Benchmark]: TraceAbstraction took 3775.65ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 131.7MB in the beginning and 108.0MB in the end (delta: 23.6MB). Peak memory consumption was 62.2MB. Max. memory is 16.1GB. [2024-11-18 22:52:08,131 INFO L158 Benchmark]: Witness Printer took 6.34ms. Allocated memory is still 211.8MB. Free memory is still 108.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 22:52:08,133 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 176.2MB. Free memory is still 144.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 290.58ms. Allocated memory is still 176.2MB. Free memory was 144.1MB in the beginning and 135.9MB in the end (delta: 8.3MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.86ms. Allocated memory is still 176.2MB. Free memory was 135.9MB in the beginning and 133.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.23ms. Allocated memory is still 176.2MB. Free memory was 133.5MB in the beginning and 130.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 578.16ms. Allocated memory is still 176.2MB. Free memory was 130.5MB in the beginning and 132.6MB in the end (delta: -2.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3775.65ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 131.7MB in the beginning and 108.0MB in the end (delta: 23.6MB). Peak memory consumption was 62.2MB. Max. memory is 16.1GB. * Witness Printer took 6.34ms. Allocated memory is still 211.8MB. Free memory is still 108.0MB. There was no memory consumed. 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 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 99, overapproximation of bitwiseOr at line 99. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 99.25; [L23] signed short int var_1_6 = 32; [L24] signed short int var_1_7 = 18477; [L25] signed short int var_1_8 = 5; [L26] float var_1_9 = 100.8; [L27] unsigned long int var_1_10 = 256; [L28] unsigned char var_1_11 = 0; [L29] unsigned char var_1_12 = 10; [L30] unsigned long int var_1_13 = 1879106797; [L31] unsigned long int var_1_14 = 1581421231; [L32] signed long int var_1_15 = -32; [L33] unsigned long int last_1_var_1_10 = 256; [L34] signed long int last_1_var_1_15 = -32; VAL [isInitial=0, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L103] isInitial = 1 [L104] FCALL initially() [L105] COND TRUE 1 [L106] CALL updateLastVariables() [L95] last_1_var_1_10 = var_1_10 [L96] last_1_var_1_15 = var_1_15 VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L106] RET updateLastVariables() [L107] CALL updateVariables() [L69] var_1_6 = __VERIFIER_nondet_short() [L70] CALL assume_abort_if_not(var_1_6 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L70] RET assume_abort_if_not(var_1_6 >= -1) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L71] CALL assume_abort_if_not(var_1_6 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L71] RET assume_abort_if_not(var_1_6 <= 32767) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L72] var_1_7 = __VERIFIER_nondet_short() [L73] CALL assume_abort_if_not(var_1_7 >= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=5, var_1_9=504/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=5, var_1_9=504/5] [L73] RET assume_abort_if_not(var_1_7 >= 16383) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=5, var_1_9=504/5] [L74] CALL assume_abort_if_not(var_1_7 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=5, var_1_9=504/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=5, var_1_9=504/5] [L74] RET assume_abort_if_not(var_1_7 <= 32767) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=5, var_1_9=504/5] [L75] var_1_8 = __VERIFIER_nondet_short() [L76] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=504/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=504/5] [L76] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=504/5] [L77] CALL assume_abort_if_not(var_1_8 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=504/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=504/5] [L77] RET assume_abort_if_not(var_1_8 <= 16383) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=504/5] [L78] var_1_9 = __VERIFIER_nondet_float() [L79] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L79] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L80] var_1_11 = __VERIFIER_nondet_uchar() [L81] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L81] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L82] CALL assume_abort_if_not(var_1_11 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L82] RET assume_abort_if_not(var_1_11 <= 1) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L83] var_1_12 = __VERIFIER_nondet_uchar() [L84] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L84] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L85] CALL assume_abort_if_not(var_1_12 <= 255) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L85] RET assume_abort_if_not(var_1_12 <= 255) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L86] CALL assume_abort_if_not(var_1_12 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=206, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=206, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L86] RET assume_abort_if_not(var_1_12 != 0) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=206, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L87] var_1_13 = __VERIFIER_nondet_ulong() [L88] CALL assume_abort_if_not(var_1_13 >= 1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L88] RET assume_abort_if_not(var_1_13 >= 1073741823) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L89] CALL assume_abort_if_not(var_1_13 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L89] RET assume_abort_if_not(var_1_13 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L90] var_1_14 = __VERIFIER_nondet_ulong() [L91] CALL assume_abort_if_not(var_1_14 >= 1073741824) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L91] RET assume_abort_if_not(var_1_14 >= 1073741824) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L92] CALL assume_abort_if_not(var_1_14 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L92] RET assume_abort_if_not(var_1_14 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L107] RET updateVariables() [L108] CALL step() [L38] unsigned long int stepLocal_1 = last_1_var_1_10; VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, stepLocal_1=256, var_1_10=256, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L39] EXPR last_1_var_1_10 ^ ((((last_1_var_1_15) > (last_1_var_1_10)) ? (last_1_var_1_15) : (last_1_var_1_10))) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, stepLocal_1=256, var_1_10=256, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L39] unsigned long int stepLocal_0 = last_1_var_1_10 ^ ((((last_1_var_1_15) > (last_1_var_1_10)) ? (last_1_var_1_15) : (last_1_var_1_10))); [L40] COND FALSE !(stepLocal_0 != last_1_var_1_10) [L45] var_1_1 = var_1_9 VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, stepLocal_1=256, var_1_10=256, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=2, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=2] [L47] signed short int stepLocal_2 = var_1_6; VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, stepLocal_1=256, stepLocal_2=-1, var_1_10=256, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=2, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=2] [L48] COND FALSE !(\read(var_1_11)) [L55] var_1_10 = var_1_7 VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, stepLocal_1=256, stepLocal_2=-1, var_1_10=16383, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=2, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=2] [L57] unsigned long int stepLocal_3 = var_1_10; VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, stepLocal_1=256, stepLocal_2=-1, stepLocal_3=16383, var_1_10=16383, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=2, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=2] [L58] COND FALSE !(var_1_1 <= var_1_9) [L65] var_1_15 = var_1_7 VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, stepLocal_1=256, stepLocal_2=-1, stepLocal_3=16383, var_1_10=16383, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1073741824, var_1_15=16383, var_1_1=2, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=2] [L108] RET step() [L109] CALL, EXPR property() [L99] EXPR last_1_var_1_10 ^ ((((last_1_var_1_15) > (last_1_var_1_10)) ? (last_1_var_1_15) : (last_1_var_1_10))) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=16383, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1073741824, var_1_15=16383, var_1_1=2, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=2] [L99-L100] return ((((last_1_var_1_10 ^ ((((last_1_var_1_15) > (last_1_var_1_10)) ? (last_1_var_1_15) : (last_1_var_1_10)))) != last_1_var_1_10) ? ((last_1_var_1_10 == (var_1_6 - (var_1_7 - var_1_8))) ? (var_1_1 == ((float) var_1_9)) : 1) : (var_1_1 == ((float) var_1_9))) && (var_1_11 ? (((var_1_7 % var_1_12) >= var_1_6) ? (var_1_10 == ((unsigned long int) ((var_1_13 + var_1_14) - var_1_7))) : (var_1_10 == ((unsigned long int) var_1_12))) : (var_1_10 == ((unsigned long int) var_1_7)))) && ((var_1_1 <= var_1_9) ? ((var_1_10 > (last_1_var_1_15 + (var_1_10 + var_1_7))) ? (var_1_15 == ((signed long int) var_1_7)) : (var_1_15 == ((signed long int) -5))) : (var_1_15 == ((signed long int) var_1_7))) ; [L109] RET, EXPR property() [L109] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=16383, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1073741824, var_1_15=16383, var_1_1=2, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=2] [L19] reach_error() VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=16383, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1073741824, var_1_15=16383, var_1_1=2, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 61 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.6s, OverallIterations: 5, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 185 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 185 mSDsluCounter, 645 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 356 mSDsCounter, 124 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 145 IncrementalHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 124 mSolverCounterUnsat, 289 mSDtfsCounter, 145 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 129 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=117occurred in iteration=4, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 41 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 763 NumberOfCodeBlocks, 763 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 534 ConstructedInterpolants, 0 QuantifiedInterpolants, 1284 SizeOfPredicates, 0 NumberOfNonLiveVariables, 252 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 2370/2400 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 could not prove your program: unable to determine feasibility of some traces [2024-11-18 22:52:08,163 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-18.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 bf5dbfe5ddcce299137d12379a3532fad5a0b1d2b0a83e3f07b3ec288904adfe --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 22:52:10,514 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 22:52:10,601 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-18 22:52:10,609 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 22:52:10,609 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 22:52:10,637 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 22:52:10,638 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 22:52:10,638 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 22:52:10,639 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 22:52:10,639 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 22:52:10,640 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 22:52:10,640 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 22:52:10,641 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 22:52:10,641 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 22:52:10,641 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 22:52:10,642 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 22:52:10,642 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 22:52:10,646 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 22:52:10,647 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 22:52:10,647 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 22:52:10,647 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 22:52:10,648 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 22:52:10,648 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 22:52:10,648 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-18 22:52:10,648 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-18 22:52:10,649 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 22:52:10,649 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-18 22:52:10,649 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 22:52:10,649 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 22:52:10,650 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 22:52:10,650 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 22:52:10,650 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 22:52:10,650 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 22:52:10,651 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 22:52:10,651 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 22:52:10,655 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 22:52:10,655 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 22:52:10,656 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 22:52:10,656 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-18 22:52:10,656 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-18 22:52:10,657 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 22:52:10,657 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 22:52:10,657 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 22:52:10,657 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 22:52:10,658 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf5dbfe5ddcce299137d12379a3532fad5a0b1d2b0a83e3f07b3ec288904adfe [2024-11-18 22:52:10,992 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 22:52:11,022 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 22:52:11,025 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 22:52:11,026 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 22:52:11,027 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 22:52:11,028 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-18.i [2024-11-18 22:52:12,603 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 22:52:12,816 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 22:52:12,817 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-18.i [2024-11-18 22:52:12,825 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bf1cf1c0/fe17eb3ad7fe4e4394829a07d838fc4c/FLAGf72c8b2a9 [2024-11-18 22:52:13,177 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bf1cf1c0/fe17eb3ad7fe4e4394829a07d838fc4c [2024-11-18 22:52:13,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 22:52:13,180 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 22:52:13,182 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 22:52:13,182 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 22:52:13,187 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 22:52:13,188 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:52:13" (1/1) ... [2024-11-18 22:52:13,189 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6452256f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:13, skipping insertion in model container [2024-11-18 22:52:13,198 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:52:13" (1/1) ... [2024-11-18 22:52:13,225 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 22:52:13,390 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-18.i[915,928] [2024-11-18 22:52:13,449 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 22:52:13,466 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 22:52:13,485 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-18.i[915,928] [2024-11-18 22:52:13,509 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 22:52:13,534 INFO L204 MainTranslator]: Completed translation [2024-11-18 22:52:13,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:13 WrapperNode [2024-11-18 22:52:13,535 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 22:52:13,537 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 22:52:13,537 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 22:52:13,537 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 22:52:13,544 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:13" (1/1) ... [2024-11-18 22:52:13,562 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:13" (1/1) ... [2024-11-18 22:52:13,593 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 107 [2024-11-18 22:52:13,594 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 22:52:13,595 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 22:52:13,595 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 22:52:13,596 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 22:52:13,608 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:13" (1/1) ... [2024-11-18 22:52:13,608 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:13" (1/1) ... [2024-11-18 22:52:13,611 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:13" (1/1) ... [2024-11-18 22:52:13,630 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 22:52:13,630 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:13" (1/1) ... [2024-11-18 22:52:13,630 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:13" (1/1) ... [2024-11-18 22:52:13,642 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:13" (1/1) ... [2024-11-18 22:52:13,648 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:13" (1/1) ... [2024-11-18 22:52:13,654 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:13" (1/1) ... [2024-11-18 22:52:13,655 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:13" (1/1) ... [2024-11-18 22:52:13,658 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 22:52:13,659 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 22:52:13,659 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 22:52:13,659 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 22:52:13,674 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:13" (1/1) ... [2024-11-18 22:52:13,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 22:52:13,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 22:52:13,709 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 22:52:13,712 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 22:52:13,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 22:52:13,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-18 22:52:13,758 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 22:52:13,759 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 22:52:13,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 22:52:13,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 22:52:13,847 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 22:52:13,850 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 22:52:14,187 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-18 22:52:14,187 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 22:52:14,204 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 22:52:14,204 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 22:52:14,205 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:52:14 BoogieIcfgContainer [2024-11-18 22:52:14,206 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 22:52:14,207 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 22:52:14,208 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 22:52:14,212 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 22:52:14,212 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:52:13" (1/3) ... [2024-11-18 22:52:14,214 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f0688e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:52:14, skipping insertion in model container [2024-11-18 22:52:14,214 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:52:13" (2/3) ... [2024-11-18 22:52:14,215 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f0688e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:52:14, skipping insertion in model container [2024-11-18 22:52:14,215 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:52:14" (3/3) ... [2024-11-18 22:52:14,216 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-18.i [2024-11-18 22:52:14,237 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 22:52:14,237 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 22:52:14,324 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 22:52:14,331 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;@ee8a4fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 22:52:14,333 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 22:52:14,337 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 32 states have (on average 1.34375) internal successors, (43), 33 states have internal predecessors, (43), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-18 22:52:14,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-18 22:52:14,349 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:52:14,350 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:52:14,350 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:52:14,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:52:14,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1155150215, now seen corresponding path program 1 times [2024-11-18 22:52:14,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 22:52:14,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1642612631] [2024-11-18 22:52:14,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:52:14,372 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 22:52:14,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 22:52:14,375 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-18 22:52:14,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-18 22:52:14,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:52:14,579 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 22:52:14,588 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 22:52:14,631 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2024-11-18 22:52:14,631 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 22:52:14,632 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 22:52:14,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1642612631] [2024-11-18 22:52:14,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1642612631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:52:14,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:52:14,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 22:52:14,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901885333] [2024-11-18 22:52:14,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:52:14,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 22:52:14,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 22:52:14,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 22:52:14,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 22:52:14,683 INFO L87 Difference]: Start difference. First operand has 51 states, 32 states have (on average 1.34375) internal successors, (43), 33 states have internal predecessors, (43), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 22:52:14,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:52:14,717 INFO L93 Difference]: Finished difference Result 95 states and 160 transitions. [2024-11-18 22:52:14,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 22:52:14,720 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 102 [2024-11-18 22:52:14,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:52:14,727 INFO L225 Difference]: With dead ends: 95 [2024-11-18 22:52:14,728 INFO L226 Difference]: Without dead ends: 47 [2024-11-18 22:52:14,733 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 22:52:14,738 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 22:52:14,740 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 22:52:14,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-11-18 22:52:14,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-11-18 22:52:14,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 29 states have internal predecessors, (36), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-18 22:52:14,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2024-11-18 22:52:14,791 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 102 [2024-11-18 22:52:14,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:52:14,792 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2024-11-18 22:52:14,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 22:52:14,793 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2024-11-18 22:52:14,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-18 22:52:14,797 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:52:14,798 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:52:14,806 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-18 22:52:15,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 22:52:15,004 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:52:15,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:52:15,005 INFO L85 PathProgramCache]: Analyzing trace with hash 2122845959, now seen corresponding path program 1 times [2024-11-18 22:52:15,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 22:52:15,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [543047658] [2024-11-18 22:52:15,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:52:15,007 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 22:52:15,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 22:52:15,010 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-18 22:52:15,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-18 22:52:15,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:52:15,180 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-18 22:52:15,187 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 22:52:16,115 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-18 22:52:16,117 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 22:52:16,118 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 22:52:16,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [543047658] [2024-11-18 22:52:16,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [543047658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:52:16,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:52:16,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 22:52:16,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140155768] [2024-11-18 22:52:16,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:52:16,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 22:52:16,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 22:52:16,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 22:52:16,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 22:52:16,127 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-18 22:52:16,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:52:16,487 INFO L93 Difference]: Finished difference Result 136 states and 199 transitions. [2024-11-18 22:52:16,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 22:52:16,491 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 102 [2024-11-18 22:52:16,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:52:16,494 INFO L225 Difference]: With dead ends: 136 [2024-11-18 22:52:16,494 INFO L226 Difference]: Without dead ends: 92 [2024-11-18 22:52:16,496 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 22:52:16,497 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 40 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 22:52:16,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 204 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 22:52:16,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-18 22:52:16,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 78. [2024-11-18 22:52:16,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 43 states have internal predecessors, (50), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-18 22:52:16,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 114 transitions. [2024-11-18 22:52:16,531 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 114 transitions. Word has length 102 [2024-11-18 22:52:16,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:52:16,532 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 114 transitions. [2024-11-18 22:52:16,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-18 22:52:16,532 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 114 transitions. [2024-11-18 22:52:16,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-18 22:52:16,536 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:52:16,536 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:52:16,545 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-18 22:52:16,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 22:52:16,738 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:52:16,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:52:16,740 INFO L85 PathProgramCache]: Analyzing trace with hash -679720955, now seen corresponding path program 1 times [2024-11-18 22:52:16,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 22:52:16,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [209630243] [2024-11-18 22:52:16,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:52:16,742 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 22:52:16,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 22:52:16,745 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-18 22:52:16,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-18 22:52:16,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:52:16,941 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-18 22:52:16,947 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 22:52:25,444 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-18 22:52:25,445 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 22:52:25,445 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 22:52:25,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [209630243] [2024-11-18 22:52:25,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [209630243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:52:25,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:52:25,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 22:52:25,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134168090] [2024-11-18 22:52:25,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:52:25,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 22:52:25,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 22:52:25,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 22:52:25,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-18 22:52:25,448 INFO L87 Difference]: Start difference. First operand 78 states and 114 transitions. Second operand has 10 states, 10 states have (on average 2.6) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-18 22:52:26,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:52:26,198 INFO L93 Difference]: Finished difference Result 122 states and 169 transitions. [2024-11-18 22:52:26,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-18 22:52:26,201 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 103 [2024-11-18 22:52:26,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:52:26,204 INFO L225 Difference]: With dead ends: 122 [2024-11-18 22:52:26,204 INFO L226 Difference]: Without dead ends: 120 [2024-11-18 22:52:26,204 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2024-11-18 22:52:26,208 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 91 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 22:52:26,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 324 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 22:52:26,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-18 22:52:26,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 86. [2024-11-18 22:52:26,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 51 states have (on average 1.196078431372549) internal successors, (61), 51 states have internal predecessors, (61), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-18 22:52:26,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 125 transitions. [2024-11-18 22:52:26,229 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 125 transitions. Word has length 103 [2024-11-18 22:52:26,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:52:26,230 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 125 transitions. [2024-11-18 22:52:26,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-18 22:52:26,230 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 125 transitions. [2024-11-18 22:52:26,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-18 22:52:26,232 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:52:26,232 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:52:26,240 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-18 22:52:26,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 22:52:26,433 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:52:26,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:52:26,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1359779325, now seen corresponding path program 1 times [2024-11-18 22:52:26,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 22:52:26,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1586197429] [2024-11-18 22:52:26,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:52:26,435 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 22:52:26,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 22:52:26,438 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-18 22:52:26,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-18 22:52:26,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:52:26,568 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-18 22:52:26,571 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 22:52:27,366 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 18 proven. 252 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-11-18 22:52:27,367 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 22:52:27,650 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 18 proven. 27 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-18 22:52:27,651 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 22:52:27,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1586197429] [2024-11-18 22:52:27,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1586197429] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 22:52:27,651 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-18 22:52:27,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-18 22:52:27,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001363084] [2024-11-18 22:52:27,652 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-18 22:52:27,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-18 22:52:27,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 22:52:27,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-18 22:52:27,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-11-18 22:52:27,654 INFO L87 Difference]: Start difference. First operand 86 states and 125 transitions. Second operand has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 4 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2024-11-18 22:52:28,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:52:28,546 INFO L93 Difference]: Finished difference Result 200 states and 271 transitions. [2024-11-18 22:52:28,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-18 22:52:28,547 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 4 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) Word has length 103 [2024-11-18 22:52:28,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:52:28,549 INFO L225 Difference]: With dead ends: 200 [2024-11-18 22:52:28,549 INFO L226 Difference]: Without dead ends: 156 [2024-11-18 22:52:28,551 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=188, Invalid=318, Unknown=0, NotChecked=0, Total=506 [2024-11-18 22:52:28,551 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 125 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 22:52:28,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 229 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 22:52:28,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-11-18 22:52:28,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 121. [2024-11-18 22:52:28,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 76 states have (on average 1.1710526315789473) internal successors, (89), 77 states have internal predecessors, (89), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-18 22:52:28,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 165 transitions. [2024-11-18 22:52:28,574 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 165 transitions. Word has length 103 [2024-11-18 22:52:28,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:52:28,575 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 165 transitions. [2024-11-18 22:52:28,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 4 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2024-11-18 22:52:28,575 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 165 transitions. [2024-11-18 22:52:28,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-18 22:52:28,577 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:52:28,577 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:52:28,586 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-11-18 22:52:28,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 22:52:28,782 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:52:28,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:52:28,782 INFO L85 PathProgramCache]: Analyzing trace with hash 167926579, now seen corresponding path program 1 times [2024-11-18 22:52:28,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 22:52:28,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [366783735] [2024-11-18 22:52:28,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:52:28,783 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 22:52:28,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 22:52:28,785 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-18 22:52:28,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-18 22:52:28,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:52:28,881 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-18 22:52:28,884 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 22:52:29,284 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 123 proven. 39 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2024-11-18 22:52:29,284 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 22:52:29,553 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 22:52:29,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [366783735] [2024-11-18 22:52:29,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [366783735] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 22:52:29,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1532203241] [2024-11-18 22:52:29,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:52:29,554 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-18 22:52:29,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-18 22:52:29,559 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-18 22:52:29,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-18 22:52:29,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:52:29,868 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-18 22:52:29,872 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 22:53:06,962 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-18 22:53:06,962 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 22:53:06,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1532203241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:53:06,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 22:53:06,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [8] total 18 [2024-11-18 22:53:06,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803582024] [2024-11-18 22:53:06,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:53:06,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-18 22:53:06,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 22:53:06,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-18 22:53:06,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2024-11-18 22:53:06,965 INFO L87 Difference]: Start difference. First operand 121 states and 165 transitions. Second operand has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-18 22:53:07,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:53:07,497 INFO L93 Difference]: Finished difference Result 151 states and 199 transitions. [2024-11-18 22:53:07,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-18 22:53:07,498 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 104 [2024-11-18 22:53:07,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:53:07,501 INFO L225 Difference]: With dead ends: 151 [2024-11-18 22:53:07,501 INFO L226 Difference]: Without dead ends: 149 [2024-11-18 22:53:07,502 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=81, Invalid=471, Unknown=0, NotChecked=0, Total=552 [2024-11-18 22:53:07,503 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 41 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 22:53:07,503 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 329 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 22:53:07,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-11-18 22:53:07,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 127. [2024-11-18 22:53:07,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 82 states have (on average 1.1829268292682926) internal successors, (97), 83 states have internal predecessors, (97), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-18 22:53:07,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 173 transitions. [2024-11-18 22:53:07,533 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 173 transitions. Word has length 104 [2024-11-18 22:53:07,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:53:07,534 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 173 transitions. [2024-11-18 22:53:07,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-18 22:53:07,535 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 173 transitions. [2024-11-18 22:53:07,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-18 22:53:07,536 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:53:07,536 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:53:07,544 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-11-18 22:53:07,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2024-11-18 22:53:07,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 22:53:07,938 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:53:07,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:53:07,938 INFO L85 PathProgramCache]: Analyzing trace with hash 169773621, now seen corresponding path program 1 times [2024-11-18 22:53:07,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 22:53:07,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2052114160] [2024-11-18 22:53:07,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:53:07,939 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 22:53:07,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 22:53:07,940 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-18 22:53:07,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-18 22:53:08,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:53:08,044 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-18 22:53:08,047 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 22:53:13,335 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 123 proven. 39 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2024-11-18 22:53:13,335 INFO L311 TraceCheckSpWp]: Computing backward predicates...