./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0610.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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/float-newlib/float_req_bl_0610.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 25249e4a5dfcdfed2078f190bfb36f4672db41bdb03e03d1de22de138ec215e0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-16 16:15:30,077 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-16 16:15:30,126 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-16 16:15:30,132 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-16 16:15:30,136 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-16 16:15:30,154 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-16 16:15:30,155 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-16 16:15:30,156 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-16 16:15:30,156 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-16 16:15:30,156 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-16 16:15:30,157 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-16 16:15:30,157 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-16 16:15:30,157 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-16 16:15:30,157 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-16 16:15:30,158 INFO L153 SettingsManager]: * Use SBE=true [2025-03-16 16:15:30,158 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-16 16:15:30,158 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-16 16:15:30,158 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-16 16:15:30,158 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-16 16:15:30,158 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-16 16:15:30,159 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-16 16:15:30,159 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-16 16:15:30,159 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-16 16:15:30,159 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-16 16:15:30,159 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-16 16:15:30,159 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-16 16:15:30,159 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-16 16:15:30,159 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-16 16:15:30,159 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-16 16:15:30,159 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-16 16:15:30,159 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-16 16:15:30,159 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-16 16:15:30,159 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 16:15:30,160 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-16 16:15:30,160 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-16 16:15:30,160 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-16 16:15:30,160 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-16 16:15:30,160 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-16 16:15:30,160 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-16 16:15:30,160 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-16 16:15:30,160 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-16 16:15:30,160 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-16 16:15:30,160 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-16 16:15:30,160 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 25249e4a5dfcdfed2078f190bfb36f4672db41bdb03e03d1de22de138ec215e0 [2025-03-16 16:15:30,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-16 16:15:30,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-16 16:15:30,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-16 16:15:30,394 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-16 16:15:30,395 INFO L274 PluginConnector]: CDTParser initialized [2025-03-16 16:15:30,396 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0610.c [2025-03-16 16:15:31,535 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7429a742/d63c0c3a93594ae885a5b3c7a402bf0a/FLAGb00aa9b72 [2025-03-16 16:15:31,737 INFO L384 CDTParser]: Found 1 translation units. [2025-03-16 16:15:31,737 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0610.c [2025-03-16 16:15:31,760 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7429a742/d63c0c3a93594ae885a5b3c7a402bf0a/FLAGb00aa9b72 [2025-03-16 16:15:32,108 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7429a742/d63c0c3a93594ae885a5b3c7a402bf0a [2025-03-16 16:15:32,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-16 16:15:32,111 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-16 16:15:32,111 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-16 16:15:32,112 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-16 16:15:32,114 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-16 16:15:32,115 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 04:15:32" (1/1) ... [2025-03-16 16:15:32,116 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37b38e44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:15:32, skipping insertion in model container [2025-03-16 16:15:32,116 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 04:15:32" (1/1) ... [2025-03-16 16:15:32,129 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-16 16:15:32,262 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/float-newlib/float_req_bl_0610.c[3190,3203] [2025-03-16 16:15:32,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 16:15:32,279 INFO L200 MainTranslator]: Completed pre-run [2025-03-16 16:15:32,306 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/float-newlib/float_req_bl_0610.c[3190,3203] [2025-03-16 16:15:32,308 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 16:15:32,324 INFO L204 MainTranslator]: Completed translation [2025-03-16 16:15:32,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:15:32 WrapperNode [2025-03-16 16:15:32,324 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-16 16:15:32,325 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-16 16:15:32,325 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-16 16:15:32,325 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-16 16:15:32,330 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:15:32" (1/1) ... [2025-03-16 16:15:32,339 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:15:32" (1/1) ... [2025-03-16 16:15:32,363 INFO L138 Inliner]: procedures = 20, calls = 61, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 183 [2025-03-16 16:15:32,366 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-16 16:15:32,366 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-16 16:15:32,366 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-16 16:15:32,366 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-16 16:15:32,372 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:15:32" (1/1) ... [2025-03-16 16:15:32,372 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:15:32" (1/1) ... [2025-03-16 16:15:32,374 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:15:32" (1/1) ... [2025-03-16 16:15:32,380 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2025-03-16 16:15:32,381 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:15:32" (1/1) ... [2025-03-16 16:15:32,381 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:15:32" (1/1) ... [2025-03-16 16:15:32,391 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:15:32" (1/1) ... [2025-03-16 16:15:32,392 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:15:32" (1/1) ... [2025-03-16 16:15:32,395 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:15:32" (1/1) ... [2025-03-16 16:15:32,396 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:15:32" (1/1) ... [2025-03-16 16:15:32,397 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-16 16:15:32,398 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-16 16:15:32,398 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-16 16:15:32,398 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-16 16:15:32,400 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:15:32" (1/1) ... [2025-03-16 16:15:32,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 16:15:32,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 16:15:32,426 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) [2025-03-16 16:15:32,428 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 [2025-03-16 16:15:32,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-16 16:15:32,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-16 16:15:32,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2025-03-16 16:15:32,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-16 16:15:32,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2025-03-16 16:15:32,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-16 16:15:32,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2025-03-16 16:15:32,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-16 16:15:32,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-16 16:15:32,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-16 16:15:32,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2025-03-16 16:15:32,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-16 16:15:32,506 INFO L256 CfgBuilder]: Building ICFG [2025-03-16 16:15:32,507 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-16 16:15:32,678 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2025-03-16 16:15:32,678 INFO L307 CfgBuilder]: Performing block encoding [2025-03-16 16:15:32,689 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-16 16:15:32,690 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-16 16:15:32,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 04:15:32 BoogieIcfgContainer [2025-03-16 16:15:32,691 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-16 16:15:32,692 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-16 16:15:32,692 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-16 16:15:32,696 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-16 16:15:32,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 04:15:32" (1/3) ... [2025-03-16 16:15:32,697 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f01cdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 04:15:32, skipping insertion in model container [2025-03-16 16:15:32,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:15:32" (2/3) ... [2025-03-16 16:15:32,697 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f01cdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 04:15:32, skipping insertion in model container [2025-03-16 16:15:32,698 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 04:15:32" (3/3) ... [2025-03-16 16:15:32,699 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_0610.c [2025-03-16 16:15:32,710 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-16 16:15:32,712 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_0610.c that has 1 procedures, 31 locations, 1 initial locations, 3 loop locations, and 4 error locations. [2025-03-16 16:15:32,752 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-16 16:15:32,761 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;@11fc0914, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-16 16:15:32,761 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-16 16:15:32,764 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 26 states have (on average 1.9230769230769231) internal successors, (50), 30 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 16:15:32,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2025-03-16 16:15:32,767 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 16:15:32,767 INFO L218 NwaCegarLoop]: trace histogram [1, 1] [2025-03-16 16:15:32,767 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 1 more)] === [2025-03-16 16:15:32,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 16:15:32,771 INFO L85 PathProgramCache]: Analyzing trace with hash 2815, now seen corresponding path program 1 times [2025-03-16 16:15:32,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 16:15:32,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492311602] [2025-03-16 16:15:32,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 16:15:32,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 16:15:32,845 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-16 16:15:32,883 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-16 16:15:32,884 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 16:15:32,884 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-16 16:15:32,884 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-16 16:15:32,889 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-16 16:15:32,902 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-16 16:15:32,902 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 16:15:32,902 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-16 16:15:32,923 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-16 16:15:32,924 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-16 16:15:32,925 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONUNSUPPORTED_FEATURE (3 of 4 remaining) [2025-03-16 16:15:32,926 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2025-03-16 16:15:32,926 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (1 of 4 remaining) [2025-03-16 16:15:32,926 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (0 of 4 remaining) [2025-03-16 16:15:32,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-16 16:15:32,929 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-16 16:15:32,940 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-16 16:15:32,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 04:15:32 BoogieIcfgContainer [2025-03-16 16:15:32,942 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-16 16:15:32,943 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-16 16:15:32,943 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-16 16:15:32,943 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-16 16:15:32,944 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 04:15:32" (3/4) ... [2025-03-16 16:15:32,945 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-16 16:15:32,946 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-16 16:15:32,946 INFO L158 Benchmark]: Toolchain (without parser) took 835.98ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 51.2MB in the end (delta: 54.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-03-16 16:15:32,947 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 125.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 16:15:32,947 INFO L158 Benchmark]: CACSL2BoogieTranslator took 213.20ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 92.7MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-16 16:15:32,949 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.50ms. Allocated memory is still 142.6MB. Free memory was 92.7MB in the beginning and 90.4MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-16 16:15:32,949 INFO L158 Benchmark]: Boogie Preprocessor took 31.27ms. Allocated memory is still 142.6MB. Free memory was 90.4MB in the beginning and 89.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 16:15:32,949 INFO L158 Benchmark]: IcfgBuilder took 292.66ms. Allocated memory is still 142.6MB. Free memory was 89.3MB in the beginning and 72.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-16 16:15:32,949 INFO L158 Benchmark]: TraceAbstraction took 250.13ms. Allocated memory is still 142.6MB. Free memory was 71.4MB in the beginning and 51.2MB in the end (delta: 20.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-16 16:15:32,949 INFO L158 Benchmark]: Witness Printer took 2.88ms. Allocated memory is still 142.6MB. Free memory is still 51.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 16:15:32,950 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 125.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 213.20ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 92.7MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.50ms. Allocated memory is still 142.6MB. Free memory was 92.7MB in the beginning and 90.4MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.27ms. Allocated memory is still 142.6MB. Free memory was 90.4MB in the beginning and 89.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 292.66ms. Allocated memory is still 142.6MB. Free memory was 89.3MB in the beginning and 72.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 250.13ms. Allocated memory is still 142.6MB. Free memory was 71.4MB in the beginning and 51.2MB in the end (delta: 20.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 2.88ms. Allocated memory is still 142.6MB. Free memory is still 51.2MB. 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: 63]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: overapproximation of union with floats in the HoenickeLindenmann_Original memory model at line 63, overapproximation of someUnaryDOUBLEoperation at line 49, overapproximation of someBinaryArithmeticFLOAToperation at line 129. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; [L34-L39] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L41-L46] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L48-L52] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L54-L56] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L129] float x = 0.0f / 0.0f; [L130] CALL atan_float(x) [L59] float w, s1, s2, z; [L60] __int32_t ix, hx, id; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=1000000000000000000000000000033] [L63] ieee_float_shape_type gf_u; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=1000000000000000000000000000033] - UnprovableResult [Line: 134]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 27]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - UnprovableResult [Line: 22]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 50 edges, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-03-16 16:15:32,961 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/21.0.5-tem/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_1.6.800.v20240513-1750.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/float-newlib/float_req_bl_0610.c -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 25249e4a5dfcdfed2078f190bfb36f4672db41bdb03e03d1de22de138ec215e0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-16 16:15:34,708 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-16 16:15:34,779 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-16 16:15:34,784 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-16 16:15:34,787 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-16 16:15:34,826 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-16 16:15:34,827 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-16 16:15:34,831 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-16 16:15:34,831 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-16 16:15:34,831 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-16 16:15:34,832 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-16 16:15:34,832 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-16 16:15:34,832 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-16 16:15:34,832 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-16 16:15:34,833 INFO L153 SettingsManager]: * Use SBE=true [2025-03-16 16:15:34,833 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-16 16:15:34,833 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-16 16:15:34,833 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-16 16:15:34,833 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-16 16:15:34,833 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-16 16:15:34,833 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-16 16:15:34,833 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-16 16:15:34,834 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-16 16:15:34,834 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-16 16:15:34,834 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-16 16:15:34,834 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-16 16:15:34,834 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-16 16:15:34,834 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-16 16:15:34,834 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-16 16:15:34,834 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-16 16:15:34,834 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-16 16:15:34,835 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-16 16:15:34,835 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-16 16:15:34,835 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-16 16:15:34,835 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 16:15:34,835 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-16 16:15:34,835 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-16 16:15:34,835 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-16 16:15:34,835 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-16 16:15:34,835 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-16 16:15:34,835 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-16 16:15:34,835 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-16 16:15:34,835 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-16 16:15:34,835 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-16 16:15:34,835 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-16 16:15:34,835 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 25249e4a5dfcdfed2078f190bfb36f4672db41bdb03e03d1de22de138ec215e0 [2025-03-16 16:15:35,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-16 16:15:35,081 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-16 16:15:35,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-16 16:15:35,085 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-16 16:15:35,085 INFO L274 PluginConnector]: CDTParser initialized [2025-03-16 16:15:35,086 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0610.c [2025-03-16 16:15:36,244 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6176ed60a/89afbe8f1685482da698a73d0b89f602/FLAG83f930f62 [2025-03-16 16:15:36,455 INFO L384 CDTParser]: Found 1 translation units. [2025-03-16 16:15:36,457 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0610.c [2025-03-16 16:15:36,464 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6176ed60a/89afbe8f1685482da698a73d0b89f602/FLAG83f930f62 [2025-03-16 16:15:36,483 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6176ed60a/89afbe8f1685482da698a73d0b89f602 [2025-03-16 16:15:36,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-16 16:15:36,487 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-16 16:15:36,488 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-16 16:15:36,488 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-16 16:15:36,492 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-16 16:15:36,492 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 04:15:36" (1/1) ... [2025-03-16 16:15:36,493 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bef03e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:15:36, skipping insertion in model container [2025-03-16 16:15:36,495 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 04:15:36" (1/1) ... [2025-03-16 16:15:36,508 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-16 16:15:36,654 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/float-newlib/float_req_bl_0610.c[3190,3203] [2025-03-16 16:15:36,658 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 16:15:36,677 INFO L200 MainTranslator]: Completed pre-run [2025-03-16 16:15:36,711 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/float-newlib/float_req_bl_0610.c[3190,3203] [2025-03-16 16:15:36,711 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 16:15:36,734 INFO L204 MainTranslator]: Completed translation [2025-03-16 16:15:36,735 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:15:36 WrapperNode [2025-03-16 16:15:36,735 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-16 16:15:36,736 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-16 16:15:36,737 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-16 16:15:36,737 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-16 16:15:36,741 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:15:36" (1/1) ... [2025-03-16 16:15:36,755 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:15:36" (1/1) ... [2025-03-16 16:15:36,777 INFO L138 Inliner]: procedures = 23, calls = 61, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 177 [2025-03-16 16:15:36,780 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-16 16:15:36,781 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-16 16:15:36,781 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-16 16:15:36,781 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-16 16:15:36,786 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:15:36" (1/1) ... [2025-03-16 16:15:36,786 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:15:36" (1/1) ... [2025-03-16 16:15:36,789 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:15:36" (1/1) ... [2025-03-16 16:15:36,805 INFO L175 MemorySlicer]: Split 45 memory accesses to 7 slices as follows [2, 7, 7, 23, 2, 2, 2]. 51 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 4, 4, 0, 0, 0, 0]. The 15 writes are split as follows [0, 0, 0, 12, 1, 1, 1]. [2025-03-16 16:15:36,805 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:15:36" (1/1) ... [2025-03-16 16:15:36,806 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:15:36" (1/1) ... [2025-03-16 16:15:36,819 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:15:36" (1/1) ... [2025-03-16 16:15:36,823 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:15:36" (1/1) ... [2025-03-16 16:15:36,829 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:15:36" (1/1) ... [2025-03-16 16:15:36,830 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:15:36" (1/1) ... [2025-03-16 16:15:36,833 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-16 16:15:36,837 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-16 16:15:36,837 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-16 16:15:36,837 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-16 16:15:36,838 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:15:36" (1/1) ... [2025-03-16 16:15:36,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 16:15:36,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 16:15:36,864 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) [2025-03-16 16:15:36,867 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 [2025-03-16 16:15:36,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-16 16:15:36,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2025-03-16 16:15:36,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2025-03-16 16:15:36,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2025-03-16 16:15:36,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2025-03-16 16:15:36,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2025-03-16 16:15:36,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2025-03-16 16:15:36,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6 [2025-03-16 16:15:36,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-16 16:15:36,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-16 16:15:36,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-03-16 16:15:36,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2025-03-16 16:15:36,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2025-03-16 16:15:36,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2025-03-16 16:15:36,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2025-03-16 16:15:36,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-16 16:15:36,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2025-03-16 16:15:36,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2025-03-16 16:15:36,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2025-03-16 16:15:36,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2025-03-16 16:15:36,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2025-03-16 16:15:36,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2025-03-16 16:15:36,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2025-03-16 16:15:36,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-03-16 16:15:36,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-03-16 16:15:36,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-03-16 16:15:36,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2025-03-16 16:15:36,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2025-03-16 16:15:36,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2025-03-16 16:15:36,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2025-03-16 16:15:36,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0 [2025-03-16 16:15:36,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1 [2025-03-16 16:15:36,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#2 [2025-03-16 16:15:36,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#3 [2025-03-16 16:15:36,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#4 [2025-03-16 16:15:36,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#5 [2025-03-16 16:15:36,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#6 [2025-03-16 16:15:36,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-16 16:15:36,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-16 16:15:36,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2025-03-16 16:15:36,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2025-03-16 16:15:36,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2025-03-16 16:15:36,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2025-03-16 16:15:36,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2025-03-16 16:15:36,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2025-03-16 16:15:36,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2025-03-16 16:15:36,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-03-16 16:15:36,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-03-16 16:15:36,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-03-16 16:15:36,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2025-03-16 16:15:36,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2025-03-16 16:15:36,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2025-03-16 16:15:36,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2025-03-16 16:15:36,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-16 16:15:37,011 INFO L256 CfgBuilder]: Building ICFG [2025-03-16 16:15:37,013 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-16 16:16:00,093 INFO L? ?]: Removed 34 outVars from TransFormulas that were not future-live. [2025-03-16 16:16:00,096 INFO L307 CfgBuilder]: Performing block encoding [2025-03-16 16:16:00,102 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-16 16:16:00,102 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-16 16:16:00,103 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 04:16:00 BoogieIcfgContainer [2025-03-16 16:16:00,103 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-16 16:16:00,104 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-16 16:16:00,104 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-16 16:16:00,107 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-16 16:16:00,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 04:15:36" (1/3) ... [2025-03-16 16:16:00,108 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76f4fdd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 04:16:00, skipping insertion in model container [2025-03-16 16:16:00,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:15:36" (2/3) ... [2025-03-16 16:16:00,108 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76f4fdd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 04:16:00, skipping insertion in model container [2025-03-16 16:16:00,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 04:16:00" (3/3) ... [2025-03-16 16:16:00,109 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_0610.c [2025-03-16 16:16:00,118 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-16 16:16:00,119 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_0610.c that has 1 procedures, 28 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2025-03-16 16:16:00,164 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-16 16:16:00,172 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;@33ae7849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-16 16:16:00,174 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-16 16:16:00,177 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 26 states have (on average 1.6923076923076923) internal successors, (44), 27 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 16:16:00,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-16 16:16:00,180 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 16:16:00,182 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 16:16:00,182 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 16:16:00,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 16:16:00,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1969164389, now seen corresponding path program 1 times [2025-03-16 16:16:00,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-16 16:16:00,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1768894930] [2025-03-16 16:16:00,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 16:16:00,194 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 [2025-03-16 16:16:00,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-16 16:16:00,196 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) [2025-03-16 16:16:00,197 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 [2025-03-16 16:16:00,283 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-16 16:16:00,852 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-16 16:16:00,853 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 16:16:00,853 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 16:16:00,881 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-16 16:16:00,884 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 16:16:00,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 16:16:00,894 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 16:16:00,895 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-16 16:16:00,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1768894930] [2025-03-16 16:16:00,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1768894930] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 16:16:00,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 16:16:00,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-16 16:16:00,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217406768] [2025-03-16 16:16:00,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 16:16:00,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-16 16:16:00,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-16 16:16:00,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-16 16:16:00,910 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-16 16:16:00,911 INFO L87 Difference]: Start difference. First operand has 28 states, 26 states have (on average 1.6923076923076923) internal successors, (44), 27 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 16:16:00,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 16:16:00,919 INFO L93 Difference]: Finished difference Result 55 states and 87 transitions. [2025-03-16 16:16:00,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-16 16:16:00,920 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-03-16 16:16:00,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 16:16:00,924 INFO L225 Difference]: With dead ends: 55 [2025-03-16 16:16:00,924 INFO L226 Difference]: Without dead ends: 25 [2025-03-16 16:16:00,926 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-16 16:16:00,927 INFO L435 NwaCegarLoop]: 37 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, 37 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 [2025-03-16 16:16:00,928 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 16:16:00,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2025-03-16 16:16:00,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2025-03-16 16:16:00,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 24 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 16:16:00,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2025-03-16 16:16:00,951 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 34 transitions. Word has length 8 [2025-03-16 16:16:00,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 16:16:00,952 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 34 transitions. [2025-03-16 16:16:00,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 16:16:00,952 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2025-03-16 16:16:00,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-03-16 16:16:00,953 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 16:16:00,953 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 16:16:00,980 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 [2025-03-16 16:16:01,157 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 [2025-03-16 16:16:01,157 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 16:16:01,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 16:16:01,158 INFO L85 PathProgramCache]: Analyzing trace with hash -822235731, now seen corresponding path program 1 times [2025-03-16 16:16:01,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-16 16:16:01,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1457156729] [2025-03-16 16:16:01,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 16:16:01,159 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 [2025-03-16 16:16:01,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-16 16:16:01,161 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) [2025-03-16 16:16:01,162 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 [2025-03-16 16:16:01,239 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-16 16:16:01,827 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-16 16:16:01,827 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 16:16:01,827 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 16:16:01,855 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-16 16:16:01,857 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 16:16:02,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 16:16:02,508 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 16:16:02,508 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-16 16:16:02,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1457156729] [2025-03-16 16:16:02,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1457156729] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 16:16:02,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 16:16:02,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 16:16:02,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095876509] [2025-03-16 16:16:02,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 16:16:02,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 16:16:02,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-16 16:16:02,510 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 16:16:02,510 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-16 16:16:02,510 INFO L87 Difference]: Start difference. First operand 25 states and 34 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 16:16:08,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-16 16:16:12,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-16 16:16:16,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-16 16:16:19,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-16 16:16:23,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-16 16:16:27,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.69s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-16 16:16:31,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-16 16:16:36,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-16 16:16:38,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-16 16:16:42,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-16 16:16:42,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 16:16:42,120 INFO L93 Difference]: Finished difference Result 34 states and 43 transitions. [2025-03-16 16:16:42,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-16 16:16:42,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2025-03-16 16:16:42,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 16:16:42,142 INFO L225 Difference]: With dead ends: 34 [2025-03-16 16:16:42,142 INFO L226 Difference]: Without dead ends: 23 [2025-03-16 16:16:42,142 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-16 16:16:42,142 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 10 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.6s IncrementalHoareTripleChecker+Time [2025-03-16 16:16:42,143 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 78 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 7 Unknown, 0 Unchecked, 39.6s Time] [2025-03-16 16:16:42,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2025-03-16 16:16:42,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2025-03-16 16:16:42,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 16:16:42,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2025-03-16 16:16:42,145 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 9 [2025-03-16 16:16:42,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 16:16:42,145 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2025-03-16 16:16:42,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 16:16:42,145 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2025-03-16 16:16:42,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-03-16 16:16:42,145 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 16:16:42,145 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 16:16:42,175 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 [2025-03-16 16:16:42,345 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 [2025-03-16 16:16:42,346 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 16:16:42,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 16:16:42,346 INFO L85 PathProgramCache]: Analyzing trace with hash 282316285, now seen corresponding path program 1 times [2025-03-16 16:16:42,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-16 16:16:42,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [643153351] [2025-03-16 16:16:42,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 16:16:42,346 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 [2025-03-16 16:16:42,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-16 16:16:42,348 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) [2025-03-16 16:16:42,349 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 [2025-03-16 16:16:42,415 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-16 16:16:43,004 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-16 16:16:43,004 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 16:16:43,004 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 16:16:43,031 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-16 16:16:43,033 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 16:16:43,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 16:16:43,748 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 16:16:43,748 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-16 16:16:43,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [643153351] [2025-03-16 16:16:43,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [643153351] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 16:16:43,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 16:16:43,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 16:16:43,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781044410] [2025-03-16 16:16:43,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 16:16:43,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 16:16:43,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-16 16:16:43,750 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 16:16:43,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-16 16:16:43,750 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 16:16:45,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 16:16:45,108 INFO L93 Difference]: Finished difference Result 22 states and 27 transitions. [2025-03-16 16:16:45,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-16 16:16:45,109 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2025-03-16 16:16:45,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 16:16:45,109 INFO L225 Difference]: With dead ends: 22 [2025-03-16 16:16:45,109 INFO L226 Difference]: Without dead ends: 0 [2025-03-16 16:16:45,109 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-16 16:16:45,110 INFO L435 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-16 16:16:45,110 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-16 16:16:45,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-16 16:16:45,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-16 16:16:45,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 16:16:45,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-16 16:16:45,111 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2025-03-16 16:16:45,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 16:16:45,111 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-16 16:16:45,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 16:16:45,111 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-16 16:16:45,111 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-16 16:16:45,113 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-16 16:16:45,137 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 [2025-03-16 16:16:45,313 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 [2025-03-16 16:16:45,316 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-03-16 16:16:45,317 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-16 16:16:45,548 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-16 16:16:45,558 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2025-03-16 16:16:45,559 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-16 16:16:45,559 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2025-03-16 16:16:45,562 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 04:16:45 BoogieIcfgContainer [2025-03-16 16:16:45,562 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-16 16:16:45,563 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-16 16:16:45,563 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-16 16:16:45,563 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-16 16:16:45,563 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 04:16:00" (3/4) ... [2025-03-16 16:16:45,565 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-16 16:16:45,572 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2025-03-16 16:16:45,573 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-03-16 16:16:45,573 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-16 16:16:45,573 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-16 16:16:45,633 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-16 16:16:45,634 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-16 16:16:45,634 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-16 16:16:45,634 INFO L158 Benchmark]: Toolchain (without parser) took 69148.34ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 66.3MB in the end (delta: 24.8MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2025-03-16 16:16:45,635 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 117.4MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 16:16:45,635 INFO L158 Benchmark]: CACSL2BoogieTranslator took 247.25ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 77.1MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-16 16:16:45,635 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.82ms. Allocated memory is still 117.4MB. Free memory was 77.1MB in the beginning and 75.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 16:16:45,635 INFO L158 Benchmark]: Boogie Preprocessor took 53.62ms. Allocated memory is still 117.4MB. Free memory was 75.0MB in the beginning and 71.7MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 16:16:45,635 INFO L158 Benchmark]: IcfgBuilder took 23265.95ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 48.7MB in the end (delta: 23.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-16 16:16:45,635 INFO L158 Benchmark]: TraceAbstraction took 45457.34ms. Allocated memory is still 117.4MB. Free memory was 48.1MB in the beginning and 73.2MB in the end (delta: -25.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 16:16:45,636 INFO L158 Benchmark]: Witness Printer took 71.23ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 66.3MB in the end (delta: 6.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-16 16:16:45,638 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 117.4MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 247.25ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 77.1MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.82ms. Allocated memory is still 117.4MB. Free memory was 77.1MB in the beginning and 75.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 53.62ms. Allocated memory is still 117.4MB. Free memory was 75.0MB in the beginning and 71.7MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 23265.95ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 48.7MB in the end (delta: 23.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 45457.34ms. Allocated memory is still 117.4MB. Free memory was 48.1MB in the beginning and 73.2MB in the end (delta: -25.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 71.23ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 66.3MB in the end (delta: 6.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven * 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 - PositiveResult [Line: 134]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 44 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 45.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 41.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 40.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 118 SdHoareTripleChecker+Invalid, 40.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 54 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44 IncrementalHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 64 mSDtfsCounter, 44 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 5 QuantifiedInterpolants, 150 SizeOfPredicates, 5 NumberOfNonLiveVariables, 337 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 21]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 19]: Location Invariant Derived location invariant: 0 RESULT: Ultimate proved your program to be correct! [2025-03-16 16:16:45,777 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 Writing output log to file Ultimate.log Result: TRUE