./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0660b.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/double_req_bl_0660b.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 6b6f2248fef0dd5c7754a6fb4a3f6f7201620c77059d6480978fc928d68c4f15 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-16 16:05:58,074 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-16 16:05:58,129 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-16 16:05:58,133 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-16 16:05:58,136 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-16 16:05:58,158 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-16 16:05:58,159 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-16 16:05:58,159 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-16 16:05:58,160 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-16 16:05:58,160 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-16 16:05:58,161 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-16 16:05:58,161 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-16 16:05:58,161 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-16 16:05:58,161 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-16 16:05:58,161 INFO L153 SettingsManager]: * Use SBE=true [2025-03-16 16:05:58,162 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-16 16:05:58,162 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-16 16:05:58,162 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-16 16:05:58,162 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-16 16:05:58,162 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-16 16:05:58,162 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-16 16:05:58,162 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-16 16:05:58,162 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-16 16:05:58,162 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-16 16:05:58,162 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-16 16:05:58,162 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-16 16:05:58,162 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-16 16:05:58,162 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-16 16:05:58,162 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-16 16:05:58,162 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-16 16:05:58,162 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-16 16:05:58,162 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-16 16:05:58,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 16:05:58,163 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-16 16:05:58,163 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-16 16:05:58,163 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-16 16:05:58,163 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-16 16:05:58,163 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-16 16:05:58,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-16 16:05:58,163 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-16 16:05:58,163 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-16 16:05:58,163 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-16 16:05:58,163 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-16 16:05:58,163 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 -> 6b6f2248fef0dd5c7754a6fb4a3f6f7201620c77059d6480978fc928d68c4f15 [2025-03-16 16:05:58,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-16 16:05:58,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-16 16:05:58,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-16 16:05:58,403 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-16 16:05:58,403 INFO L274 PluginConnector]: CDTParser initialized [2025-03-16 16:05:58,404 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0660b.c [2025-03-16 16:05:59,485 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b73fdaae9/62796312331840be8895d3cb13c7f033/FLAG2b86624e2 [2025-03-16 16:05:59,718 INFO L384 CDTParser]: Found 1 translation units. [2025-03-16 16:05:59,718 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0660b.c [2025-03-16 16:05:59,724 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b73fdaae9/62796312331840be8895d3cb13c7f033/FLAG2b86624e2 [2025-03-16 16:06:00,045 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b73fdaae9/62796312331840be8895d3cb13c7f033 [2025-03-16 16:06:00,047 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-16 16:06:00,048 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-16 16:06:00,048 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-16 16:06:00,049 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-16 16:06:00,052 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-16 16:06:00,053 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 04:06:00" (1/1) ... [2025-03-16 16:06:00,053 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73aed5e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:06:00, skipping insertion in model container [2025-03-16 16:06:00,053 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 04:06:00" (1/1) ... [2025-03-16 16:06:00,067 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-16 16:06:00,189 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/double_req_bl_0660b.c[6212,6225] [2025-03-16 16:06:00,190 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 16:06:00,198 INFO L200 MainTranslator]: Completed pre-run [2025-03-16 16:06:00,236 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/double_req_bl_0660b.c[6212,6225] [2025-03-16 16:06:00,237 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 16:06:00,247 INFO L204 MainTranslator]: Completed translation [2025-03-16 16:06:00,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:06:00 WrapperNode [2025-03-16 16:06:00,248 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-16 16:06:00,249 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-16 16:06:00,249 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-16 16:06:00,249 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-16 16:06:00,253 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:06:00" (1/1) ... [2025-03-16 16:06:00,259 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:06:00" (1/1) ... [2025-03-16 16:06:00,278 INFO L138 Inliner]: procedures = 20, calls = 87, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 316 [2025-03-16 16:06:00,278 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-16 16:06:00,279 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-16 16:06:00,279 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-16 16:06:00,279 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-16 16:06:00,285 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:06:00" (1/1) ... [2025-03-16 16:06:00,285 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:06:00" (1/1) ... [2025-03-16 16:06:00,288 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:06:00" (1/1) ... [2025-03-16 16:06:00,293 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2025-03-16 16:06:00,294 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:06:00" (1/1) ... [2025-03-16 16:06:00,294 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:06:00" (1/1) ... [2025-03-16 16:06:00,308 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:06:00" (1/1) ... [2025-03-16 16:06:00,313 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:06:00" (1/1) ... [2025-03-16 16:06:00,315 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:06:00" (1/1) ... [2025-03-16 16:06:00,315 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:06:00" (1/1) ... [2025-03-16 16:06:00,318 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-16 16:06:00,318 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-16 16:06:00,318 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-16 16:06:00,318 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-16 16:06:00,321 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:06:00" (1/1) ... [2025-03-16 16:06:00,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 16:06:00,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 16:06:00,342 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 16:06:00,345 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 16:06:00,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-16 16:06:00,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-16 16:06:00,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2025-03-16 16:06:00,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-16 16:06:00,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2025-03-16 16:06:00,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-16 16:06:00,360 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2025-03-16 16:06:00,360 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2025-03-16 16:06:00,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2025-03-16 16:06:00,360 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2025-03-16 16:06:00,360 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2025-03-16 16:06:00,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-16 16:06:00,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-16 16:06:00,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-16 16:06:00,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2025-03-16 16:06:00,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-16 16:06:00,452 INFO L256 CfgBuilder]: Building ICFG [2025-03-16 16:06:00,454 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-16 16:06:00,575 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L76: havoc ~low~0; [2025-03-16 16:06:00,930 INFO L? ?]: Removed 76 outVars from TransFormulas that were not future-live. [2025-03-16 16:06:00,931 INFO L307 CfgBuilder]: Performing block encoding [2025-03-16 16:06:00,966 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-16 16:06:00,967 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-16 16:06:00,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 04:06:00 BoogieIcfgContainer [2025-03-16 16:06:00,967 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-16 16:06:00,969 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-16 16:06:00,969 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-16 16:06:00,972 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-16 16:06:00,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 04:06:00" (1/3) ... [2025-03-16 16:06:00,973 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22e832fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 04:06:00, skipping insertion in model container [2025-03-16 16:06:00,973 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:06:00" (2/3) ... [2025-03-16 16:06:00,973 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22e832fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 04:06:00, skipping insertion in model container [2025-03-16 16:06:00,973 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 04:06:00" (3/3) ... [2025-03-16 16:06:00,974 INFO L128 eAbstractionObserver]: Analyzing ICFG double_req_bl_0660b.c [2025-03-16 16:06:00,985 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-16 16:06:00,986 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG double_req_bl_0660b.c that has 3 procedures, 122 locations, 1 initial locations, 8 loop locations, and 9 error locations. [2025-03-16 16:06:01,031 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-16 16:06:01,039 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;@39b41b82, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-16 16:06:01,039 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-03-16 16:06:01,042 INFO L276 IsEmpty]: Start isEmpty. Operand has 122 states, 106 states have (on average 1.8396226415094339) internal successors, (195), 115 states have internal predecessors, (195), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-16 16:06:01,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-03-16 16:06:01,045 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 16:06:01,046 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-03-16 16:06:01,046 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [fabs_doubleErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, fabs_doubleErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE, atan_doubleErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 6 more)] === [2025-03-16 16:06:01,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 16:06:01,050 INFO L85 PathProgramCache]: Analyzing trace with hash 289891, now seen corresponding path program 1 times [2025-03-16 16:06:01,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 16:06:01,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461000365] [2025-03-16 16:06:01,055 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 16:06:01,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 16:06:01,138 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-16 16:06:01,181 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-16 16:06:01,182 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 16:06:01,182 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-16 16:06:01,182 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-16 16:06:01,188 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-16 16:06:01,213 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-16 16:06:01,214 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 16:06:01,214 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-16 16:06:01,229 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-16 16:06:01,230 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-16 16:06:01,231 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONUNSUPPORTED_FEATURE (8 of 9 remaining) [2025-03-16 16:06:01,232 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location fabs_doubleErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (7 of 9 remaining) [2025-03-16 16:06:01,232 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location fabs_doubleErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (6 of 9 remaining) [2025-03-16 16:06:01,232 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location atan_doubleErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (5 of 9 remaining) [2025-03-16 16:06:01,233 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location atan_doubleErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (4 of 9 remaining) [2025-03-16 16:06:01,233 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2025-03-16 16:06:01,233 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (2 of 9 remaining) [2025-03-16 16:06:01,233 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (1 of 9 remaining) [2025-03-16 16:06:01,233 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONUNSUPPORTED_FEATURE (0 of 9 remaining) [2025-03-16 16:06:01,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-16 16:06:01,236 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-16 16:06:01,247 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-16 16:06:01,249 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 04:06:01 BoogieIcfgContainer [2025-03-16 16:06:01,249 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-16 16:06:01,250 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-16 16:06:01,250 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-16 16:06:01,250 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-16 16:06:01,250 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 04:06:00" (3/4) ... [2025-03-16 16:06:01,251 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-16 16:06:01,252 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-16 16:06:01,253 INFO L158 Benchmark]: Toolchain (without parser) took 1205.00ms. Allocated memory is still 142.6MB. Free memory was 110.5MB in the beginning and 101.7MB in the end (delta: 8.8MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2025-03-16 16:06:01,253 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 122.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 16:06:01,253 INFO L158 Benchmark]: CACSL2BoogieTranslator took 199.79ms. Allocated memory is still 142.6MB. Free memory was 110.5MB in the beginning and 95.4MB in the end (delta: 15.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-16 16:06:01,253 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.66ms. Allocated memory is still 142.6MB. Free memory was 95.4MB in the beginning and 93.2MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 16:06:01,253 INFO L158 Benchmark]: Boogie Preprocessor took 38.91ms. Allocated memory is still 142.6MB. Free memory was 93.2MB in the beginning and 90.6MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-16 16:06:01,254 INFO L158 Benchmark]: IcfgBuilder took 648.81ms. Allocated memory is still 142.6MB. Free memory was 90.6MB in the beginning and 55.7MB in the end (delta: 34.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-03-16 16:06:01,254 INFO L158 Benchmark]: TraceAbstraction took 280.39ms. Allocated memory is still 142.6MB. Free memory was 55.2MB in the beginning and 101.7MB in the end (delta: -46.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 16:06:01,254 INFO L158 Benchmark]: Witness Printer took 2.48ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 101.7MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 16:06:01,255 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 201.3MB. Free memory is still 122.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 199.79ms. Allocated memory is still 142.6MB. Free memory was 110.5MB in the beginning and 95.4MB in the end (delta: 15.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.66ms. Allocated memory is still 142.6MB. Free memory was 95.4MB in the beginning and 93.2MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.91ms. Allocated memory is still 142.6MB. Free memory was 93.2MB in the beginning and 90.6MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 648.81ms. Allocated memory is still 142.6MB. Free memory was 90.6MB in the beginning and 55.7MB in the end (delta: 34.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 280.39ms. Allocated memory is still 142.6MB. Free memory was 55.2MB in the beginning and 101.7MB in the end (delta: -46.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.48ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 101.7MB in the end (delta: 27.1kB). 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: 150]: 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 150, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of someBinaryDOUBLEComparisonOperation at line 255. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L252] double x = __VERIFIER_nondet_double(); [L253] double y = 0.0; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, y=0, zero_atan2=0] [L255] COND TRUE x < 0.0 [L257] CALL __ieee754_atan2(y, x) [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, y=0, zero_atan2=0] [L150] ieee_double_shape_type ew_u; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, y=0, zero_atan2=0] - 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. - UnprovableResult [Line: 79]: 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: 71]: 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: 261]: 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: 232]: 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: 227]: 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: 157]: 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 3 procedures, 122 locations, 207 edges, 9 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=122occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 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 16:06:01,267 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/double_req_bl_0660b.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 6b6f2248fef0dd5c7754a6fb4a3f6f7201620c77059d6480978fc928d68c4f15 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-16 16:06:03,149 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-16 16:06:03,228 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-16 16:06:03,232 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-16 16:06:03,232 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-16 16:06:03,255 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-16 16:06:03,256 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-16 16:06:03,256 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-16 16:06:03,256 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-16 16:06:03,256 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-16 16:06:03,257 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-16 16:06:03,257 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-16 16:06:03,257 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-16 16:06:03,257 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-16 16:06:03,257 INFO L153 SettingsManager]: * Use SBE=true [2025-03-16 16:06:03,257 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-16 16:06:03,257 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-16 16:06:03,258 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-16 16:06:03,258 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-16 16:06:03,258 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-16 16:06:03,258 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-16 16:06:03,258 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-16 16:06:03,258 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-16 16:06:03,258 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-16 16:06:03,258 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-16 16:06:03,258 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-16 16:06:03,258 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-16 16:06:03,258 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-16 16:06:03,258 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-16 16:06:03,258 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-16 16:06:03,258 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-16 16:06:03,258 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-16 16:06:03,258 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-16 16:06:03,258 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-16 16:06:03,258 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 16:06:03,258 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-16 16:06:03,259 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-16 16:06:03,259 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-16 16:06:03,259 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-16 16:06:03,259 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-16 16:06:03,259 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-16 16:06:03,260 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-16 16:06:03,260 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-16 16:06:03,260 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-16 16:06:03,260 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-16 16:06:03,260 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 -> 6b6f2248fef0dd5c7754a6fb4a3f6f7201620c77059d6480978fc928d68c4f15 [2025-03-16 16:06:03,473 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-16 16:06:03,478 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-16 16:06:03,480 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-16 16:06:03,480 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-16 16:06:03,480 INFO L274 PluginConnector]: CDTParser initialized [2025-03-16 16:06:03,481 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0660b.c [2025-03-16 16:06:04,649 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f93d33999/16288edc67b3482ba0b0708734349696/FLAG8ba49bb99 [2025-03-16 16:06:04,822 INFO L384 CDTParser]: Found 1 translation units. [2025-03-16 16:06:04,823 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0660b.c [2025-03-16 16:06:04,830 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f93d33999/16288edc67b3482ba0b0708734349696/FLAG8ba49bb99 [2025-03-16 16:06:05,212 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f93d33999/16288edc67b3482ba0b0708734349696 [2025-03-16 16:06:05,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-16 16:06:05,215 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-16 16:06:05,216 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-16 16:06:05,216 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-16 16:06:05,219 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-16 16:06:05,220 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 04:06:05" (1/1) ... [2025-03-16 16:06:05,221 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b90f76e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:06:05, skipping insertion in model container [2025-03-16 16:06:05,222 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 04:06:05" (1/1) ... [2025-03-16 16:06:05,240 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-16 16:06:05,389 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/double_req_bl_0660b.c[6212,6225] [2025-03-16 16:06:05,391 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 16:06:05,403 INFO L200 MainTranslator]: Completed pre-run [2025-03-16 16:06:05,434 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/double_req_bl_0660b.c[6212,6225] [2025-03-16 16:06:05,435 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 16:06:05,455 INFO L204 MainTranslator]: Completed translation [2025-03-16 16:06:05,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:06:05 WrapperNode [2025-03-16 16:06:05,456 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-16 16:06:05,456 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-16 16:06:05,456 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-16 16:06:05,456 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-16 16:06:05,460 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:06:05" (1/1) ... [2025-03-16 16:06:05,468 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:06:05" (1/1) ... [2025-03-16 16:06:05,490 INFO L138 Inliner]: procedures = 23, calls = 87, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 225 [2025-03-16 16:06:05,494 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-16 16:06:05,495 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-16 16:06:05,495 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-16 16:06:05,495 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-16 16:06:05,500 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:06:05" (1/1) ... [2025-03-16 16:06:05,501 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:06:05" (1/1) ... [2025-03-16 16:06:05,507 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:06:05" (1/1) ... [2025-03-16 16:06:05,537 INFO L175 MemorySlicer]: Split 59 memory accesses to 12 slices as follows [2, 2, 7, 7, 3, 23, 3, 3, 2, 2, 3, 2]. 39 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 0, 4, 4, 0, 0, 0, 0, 0, 0, 0, 0]. The 22 writes are split as follows [0, 1, 0, 0, 1, 12, 1, 2, 1, 1, 2, 1]. [2025-03-16 16:06:05,537 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:06:05" (1/1) ... [2025-03-16 16:06:05,537 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:06:05" (1/1) ... [2025-03-16 16:06:05,563 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:06:05" (1/1) ... [2025-03-16 16:06:05,566 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:06:05" (1/1) ... [2025-03-16 16:06:05,570 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:06:05" (1/1) ... [2025-03-16 16:06:05,572 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:06:05" (1/1) ... [2025-03-16 16:06:05,576 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-16 16:06:05,577 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-16 16:06:05,577 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-16 16:06:05,577 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-16 16:06:05,578 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:06:05" (1/1) ... [2025-03-16 16:06:05,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 16:06:05,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 16:06:05,604 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 16:06:05,613 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 16:06:05,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-16 16:06:05,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2025-03-16 16:06:05,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2025-03-16 16:06:05,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2025-03-16 16:06:05,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2025-03-16 16:06:05,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2025-03-16 16:06:05,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#5 [2025-03-16 16:06:05,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#6 [2025-03-16 16:06:05,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#7 [2025-03-16 16:06:05,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#8 [2025-03-16 16:06:05,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#9 [2025-03-16 16:06:05,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#10 [2025-03-16 16:06:05,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#11 [2025-03-16 16:06:05,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#0 [2025-03-16 16:06:05,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#1 [2025-03-16 16:06:05,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#2 [2025-03-16 16:06:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#3 [2025-03-16 16:06:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#4 [2025-03-16 16:06:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#5 [2025-03-16 16:06:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#6 [2025-03-16 16:06:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#7 [2025-03-16 16:06:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#8 [2025-03-16 16:06:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#9 [2025-03-16 16:06:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#10 [2025-03-16 16:06:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#11 [2025-03-16 16:06:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2025-03-16 16:06:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2025-03-16 16:06:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2025-03-16 16:06:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2025-03-16 16:06:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2025-03-16 16:06:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#5 [2025-03-16 16:06:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#6 [2025-03-16 16:06:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#7 [2025-03-16 16:06:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#8 [2025-03-16 16:06:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#9 [2025-03-16 16:06:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#10 [2025-03-16 16:06:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#11 [2025-03-16 16:06:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-16 16:06:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-16 16:06:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-03-16 16:06:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2025-03-16 16:06:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2025-03-16 16:06:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2025-03-16 16:06:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2025-03-16 16:06:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2025-03-16 16:06:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2025-03-16 16:06:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2025-03-16 16:06:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2025-03-16 16:06:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2025-03-16 16:06:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-16 16:06:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2025-03-16 16:06:05,632 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2025-03-16 16:06:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2025-03-16 16:06:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2025-03-16 16:06:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#2 [2025-03-16 16:06:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#3 [2025-03-16 16:06:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#4 [2025-03-16 16:06:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#5 [2025-03-16 16:06:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#6 [2025-03-16 16:06:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#7 [2025-03-16 16:06:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#8 [2025-03-16 16:06:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#9 [2025-03-16 16:06:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#10 [2025-03-16 16:06:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#11 [2025-03-16 16:06:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2025-03-16 16:06:05,633 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2025-03-16 16:06:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-03-16 16:06:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-03-16 16:06:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-03-16 16:06:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2025-03-16 16:06:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2025-03-16 16:06:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2025-03-16 16:06:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2025-03-16 16:06:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2025-03-16 16:06:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2025-03-16 16:06:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2025-03-16 16:06:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2025-03-16 16:06:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2025-03-16 16:06:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-16 16:06:05,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-16 16:06:05,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-03-16 16:06:05,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-03-16 16:06:05,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-03-16 16:06:05,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2025-03-16 16:06:05,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2025-03-16 16:06:05,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2025-03-16 16:06:05,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2025-03-16 16:06:05,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2025-03-16 16:06:05,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2025-03-16 16:06:05,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2025-03-16 16:06:05,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2025-03-16 16:06:05,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#11 [2025-03-16 16:06:05,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-16 16:06:05,781 INFO L256 CfgBuilder]: Building ICFG [2025-03-16 16:06:05,782 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-16 16:06:37,448 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L76: havoc ~low~0; [2025-03-16 16:06:56,448 INFO L? ?]: Removed 81 outVars from TransFormulas that were not future-live. [2025-03-16 16:06:56,449 INFO L307 CfgBuilder]: Performing block encoding [2025-03-16 16:06:56,457 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-16 16:06:56,459 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-16 16:06:56,459 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 04:06:56 BoogieIcfgContainer [2025-03-16 16:06:56,460 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-16 16:06:56,462 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-16 16:06:56,462 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-16 16:06:56,466 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-16 16:06:56,466 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 04:06:05" (1/3) ... [2025-03-16 16:06:56,467 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@771010b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 04:06:56, skipping insertion in model container [2025-03-16 16:06:56,467 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:06:05" (2/3) ... [2025-03-16 16:06:56,467 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@771010b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 04:06:56, skipping insertion in model container [2025-03-16 16:06:56,467 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 04:06:56" (3/3) ... [2025-03-16 16:06:56,468 INFO L128 eAbstractionObserver]: Analyzing ICFG double_req_bl_0660b.c [2025-03-16 16:06:56,478 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-16 16:06:56,479 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG double_req_bl_0660b.c that has 3 procedures, 83 locations, 1 initial locations, 8 loop locations, and 1 error locations. [2025-03-16 16:06:56,520 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-16 16:06:56,529 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;@7e624b3e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-16 16:06:56,529 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-16 16:06:56,533 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 75 states have (on average 1.72) internal successors, (129), 76 states have internal predecessors, (129), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-16 16:06:56,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-03-16 16:06:56,538 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 16:06:56,539 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 16:06:56,539 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 16:06:56,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 16:06:56,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1857103648, now seen corresponding path program 1 times [2025-03-16 16:06:56,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-16 16:06:56,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [823555535] [2025-03-16 16:06:56,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 16:06:56,553 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 16:06:56,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-16 16:06:56,555 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 16:06:56,557 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 16:06:56,671 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-16 16:06:56,863 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-16 16:06:56,864 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 16:06:56,864 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 16:06:56,875 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-16 16:06:56,878 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 16:06:56,888 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 16:06:56,888 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 16:06:56,889 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-16 16:06:56,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [823555535] [2025-03-16 16:06:56,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [823555535] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 16:06:56,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 16:06:56,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-16 16:06:56,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352358475] [2025-03-16 16:06:56,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 16:06:56,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-16 16:06:56,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-16 16:06:56,904 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-16 16:06:56,904 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-16 16:06:56,906 INFO L87 Difference]: Start difference. First operand has 83 states, 75 states have (on average 1.72) internal successors, (129), 76 states have internal predecessors, (129), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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 16:06:56,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 16:06:56,921 INFO L93 Difference]: Finished difference Result 164 states and 275 transitions. [2025-03-16 16:06:56,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-16 16:06:56,922 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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 16:06:56,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 16:06:56,926 INFO L225 Difference]: With dead ends: 164 [2025-03-16 16:06:56,926 INFO L226 Difference]: Without dead ends: 79 [2025-03-16 16:06:56,929 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 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 16:06:56,930 INFO L435 NwaCegarLoop]: 120 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, 120 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 16:06:56,931 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 16:06:56,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2025-03-16 16:06:56,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2025-03-16 16:06:56,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 72 states have (on average 1.4861111111111112) internal successors, (107), 72 states have internal predecessors, (107), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-16 16:06:56,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 115 transitions. [2025-03-16 16:06:56,953 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 115 transitions. Word has length 10 [2025-03-16 16:06:56,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 16:06:56,954 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 115 transitions. [2025-03-16 16:06:56,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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 16:06:56,954 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 115 transitions. [2025-03-16 16:06:56,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-03-16 16:06:56,954 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 16:06:56,954 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 16:06:56,965 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 16:06:57,155 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 16:06:57,156 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 16:06:57,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 16:06:57,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1049302525, now seen corresponding path program 1 times [2025-03-16 16:06:57,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-16 16:06:57,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1748767647] [2025-03-16 16:06:57,160 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 16:06:57,160 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 16:06:57,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-16 16:06:57,163 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 16:06:57,167 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 16:06:57,275 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-16 16:06:57,540 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-16 16:06:57,540 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 16:06:57,540 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 16:06:57,553 INFO L256 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-03-16 16:06:57,558 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 16:07:09,330 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 16:07:09,330 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 16:07:09,330 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-16 16:07:09,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1748767647] [2025-03-16 16:07:09,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1748767647] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 16:07:09,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 16:07:09,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-16 16:07:09,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187940433] [2025-03-16 16:07:09,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 16:07:09,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-16 16:07:09,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-16 16:07:09,332 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-16 16:07:09,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=42, Unknown=1, NotChecked=0, Total=56 [2025-03-16 16:07:09,332 INFO L87 Difference]: Start difference. First operand 79 states and 115 transitions. Second operand has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 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 16:07:20,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-16 16:07:24,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-16 16:07:28,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-16 16:07:32,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-16 16:07:41,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-16 16:07:46,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-16 16:07:46,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 16:07:46,441 INFO L93 Difference]: Finished difference Result 115 states and 159 transitions. [2025-03-16 16:07:46,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-16 16:07:46,442 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 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 12 [2025-03-16 16:07:46,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 16:07:46,443 INFO L225 Difference]: With dead ends: 115 [2025-03-16 16:07:46,443 INFO L226 Difference]: Without dead ends: 79 [2025-03-16 16:07:46,443 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 14.9s TimeCoverageRelationStatistics Valid=46, Invalid=109, Unknown=1, NotChecked=0, Total=156 [2025-03-16 16:07:46,444 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 118 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.7s IncrementalHoareTripleChecker+Time [2025-03-16 16:07:46,444 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 576 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 67 Invalid, 6 Unknown, 0 Unchecked, 30.7s Time] [2025-03-16 16:07:46,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2025-03-16 16:07:46,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 77. [2025-03-16 16:07:46,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 71 states have (on average 1.4507042253521127) internal successors, (103), 71 states have internal predecessors, (103), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-16 16:07:46,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 109 transitions. [2025-03-16 16:07:46,450 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 109 transitions. Word has length 12 [2025-03-16 16:07:46,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 16:07:46,450 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 109 transitions. [2025-03-16 16:07:46,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 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 16:07:46,450 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 109 transitions. [2025-03-16 16:07:46,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2025-03-16 16:07:46,450 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 16:07:46,451 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 16:07:46,464 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 (3)] Ended with exit code 0 [2025-03-16 16:07:46,651 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 16:07:46,651 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 16:07:46,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 16:07:46,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1254789946, now seen corresponding path program 1 times [2025-03-16 16:07:46,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-16 16:07:46,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [553932400] [2025-03-16 16:07:46,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 16:07:46,653 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 16:07:46,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-16 16:07:46,655 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 16:07:46,656 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