./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0660a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0660a.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 1c3190f495eae54e4d617ff48fc187597eb553c8ed8ec63a4d85f293d62b08d2 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 13:07:22,823 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 13:07:22,876 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-05 13:07:22,884 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 13:07:22,885 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 13:07:22,910 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 13:07:22,910 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 13:07:22,911 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 13:07:22,911 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 13:07:22,911 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 13:07:22,912 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 13:07:22,912 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 13:07:22,912 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 13:07:22,912 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 13:07:22,912 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 13:07:22,913 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 13:07:22,913 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 13:07:22,913 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 13:07:22,913 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-05 13:07:22,913 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 13:07:22,913 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 13:07:22,913 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 13:07:22,913 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 13:07:22,913 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 13:07:22,913 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 13:07:22,914 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 13:07:22,914 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 13:07:22,914 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 13:07:22,914 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 13:07:22,914 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 13:07:22,914 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 13:07:22,914 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 13:07:22,914 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 13:07:22,915 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 13:07:22,915 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 13:07:22,915 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 13:07:22,915 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 13:07:22,915 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-05 13:07:22,915 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-05 13:07:22,915 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 13:07:22,915 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 13:07:22,915 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 13:07:22,915 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 13:07:22,915 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-jdk21/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 -> 1c3190f495eae54e4d617ff48fc187597eb553c8ed8ec63a4d85f293d62b08d2 [2025-02-05 13:07:23,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 13:07:23,135 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 13:07:23,137 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 13:07:23,138 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 13:07:23,138 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 13:07:23,140 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0660a.c [2025-02-05 13:07:24,290 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/53e0ccefb/ab6ef7e6f9b34709a1fd61b2ff079ad7/FLAG020526313 [2025-02-05 13:07:24,540 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 13:07:24,541 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0660a.c [2025-02-05 13:07:24,556 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/53e0ccefb/ab6ef7e6f9b34709a1fd61b2ff079ad7/FLAG020526313 [2025-02-05 13:07:24,866 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/53e0ccefb/ab6ef7e6f9b34709a1fd61b2ff079ad7 [2025-02-05 13:07:24,868 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 13:07:24,869 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 13:07:24,870 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 13:07:24,870 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 13:07:24,874 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 13:07:24,874 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 01:07:24" (1/1) ... [2025-02-05 13:07:24,875 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37819be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:07:24, skipping insertion in model container [2025-02-05 13:07:24,875 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 01:07:24" (1/1) ... [2025-02-05 13:07:24,888 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 13:07:25,052 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0660a.c[5286,5299] [2025-02-05 13:07:25,053 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 13:07:25,065 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 13:07:25,091 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0660a.c[5286,5299] [2025-02-05 13:07:25,092 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 13:07:25,107 INFO L204 MainTranslator]: Completed translation [2025-02-05 13:07:25,107 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:07:25 WrapperNode [2025-02-05 13:07:25,108 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 13:07:25,109 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 13:07:25,109 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 13:07:25,109 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 13:07:25,113 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:07:25" (1/1) ... [2025-02-05 13:07:25,121 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:07:25" (1/1) ... [2025-02-05 13:07:25,146 INFO L138 Inliner]: procedures = 20, calls = 79, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 239 [2025-02-05 13:07:25,150 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 13:07:25,150 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 13:07:25,150 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 13:07:25,150 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 13:07:25,158 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:07:25" (1/1) ... [2025-02-05 13:07:25,159 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:07:25" (1/1) ... [2025-02-05 13:07:25,162 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:07:25" (1/1) ... [2025-02-05 13:07:25,171 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2025-02-05 13:07:25,171 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:07:25" (1/1) ... [2025-02-05 13:07:25,171 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:07:25" (1/1) ... [2025-02-05 13:07:25,186 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:07:25" (1/1) ... [2025-02-05 13:07:25,187 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:07:25" (1/1) ... [2025-02-05 13:07:25,188 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:07:25" (1/1) ... [2025-02-05 13:07:25,189 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:07:25" (1/1) ... [2025-02-05 13:07:25,195 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 13:07:25,195 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 13:07:25,196 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 13:07:25,196 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 13:07:25,196 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:07:25" (1/1) ... [2025-02-05 13:07:25,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 13:07:25,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 13:07:25,221 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-05 13:07:25,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-05 13:07:25,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 13:07:25,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-05 13:07:25,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2025-02-05 13:07:25,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-05 13:07:25,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2025-02-05 13:07:25,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-05 13:07:25,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2025-02-05 13:07:25,237 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2025-02-05 13:07:25,237 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2025-02-05 13:07:25,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 13:07:25,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 13:07:25,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-05 13:07:25,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2025-02-05 13:07:25,238 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2025-02-05 13:07:25,238 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2025-02-05 13:07:25,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-05 13:07:25,303 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 13:07:25,304 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 13:07:25,568 INFO L? ?]: Removed 67 outVars from TransFormulas that were not future-live. [2025-02-05 13:07:25,568 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 13:07:25,595 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 13:07:25,595 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 13:07:25,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 01:07:25 BoogieIcfgContainer [2025-02-05 13:07:25,595 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 13:07:25,597 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 13:07:25,597 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 13:07:25,600 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 13:07:25,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 01:07:24" (1/3) ... [2025-02-05 13:07:25,601 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14ca0333 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 01:07:25, skipping insertion in model container [2025-02-05 13:07:25,601 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:07:25" (2/3) ... [2025-02-05 13:07:25,601 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14ca0333 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 01:07:25, skipping insertion in model container [2025-02-05 13:07:25,601 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 01:07:25" (3/3) ... [2025-02-05 13:07:25,602 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_0660a.c [2025-02-05 13:07:25,612 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 13:07:25,617 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_0660a.c that has 3 procedures, 114 locations, 1 initial locations, 14 loop locations, and 8 error locations. [2025-02-05 13:07:25,658 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 13:07:25,669 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;@58e383b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 13:07:25,671 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-02-05 13:07:25,676 INFO L276 IsEmpty]: Start isEmpty. Operand has 114 states, 99 states have (on average 1.707070707070707) internal successors, (169), 107 states have internal predecessors, (169), 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) [2025-02-05 13:07:25,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-02-05 13:07:25,680 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 13:07:25,680 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-05 13:07:25,680 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [fabs_floatErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, fabs_floatErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2025-02-05 13:07:25,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 13:07:25,684 INFO L85 PathProgramCache]: Analyzing trace with hash 2064457853, now seen corresponding path program 1 times [2025-02-05 13:07:25,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 13:07:25,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981242833] [2025-02-05 13:07:25,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 13:07:25,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 13:07:25,783 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-05 13:07:25,832 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-05 13:07:25,834 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 13:07:25,834 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-05 13:07:25,834 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-05 13:07:25,844 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-05 13:07:25,871 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-05 13:07:25,871 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 13:07:25,871 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-05 13:07:25,897 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-05 13:07:25,898 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-05 13:07:25,900 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONUNSUPPORTED_FEATURE (7 of 8 remaining) [2025-02-05 13:07:25,902 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location fabs_floatErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (6 of 8 remaining) [2025-02-05 13:07:25,902 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location fabs_floatErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (5 of 8 remaining) [2025-02-05 13:07:25,902 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2025-02-05 13:07:25,903 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (3 of 8 remaining) [2025-02-05 13:07:25,903 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (2 of 8 remaining) [2025-02-05 13:07:25,903 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONUNSUPPORTED_FEATURE (1 of 8 remaining) [2025-02-05 13:07:25,903 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location atan_floatErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (0 of 8 remaining) [2025-02-05 13:07:25,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-05 13:07:25,908 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-05 13:07:25,930 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-05 13:07:25,933 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.02 01:07:25 BoogieIcfgContainer [2025-02-05 13:07:25,933 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-05 13:07:25,934 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-05 13:07:25,934 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-05 13:07:25,934 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-05 13:07:25,934 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 01:07:25" (3/4) ... [2025-02-05 13:07:25,936 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-05 13:07:25,937 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-05 13:07:25,938 INFO L158 Benchmark]: Toolchain (without parser) took 1068.62ms. Allocated memory is still 167.8MB. Free memory was 133.6MB in the beginning and 66.2MB in the end (delta: 67.3MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2025-02-05 13:07:25,938 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 209.7MB. Free memory is still 123.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 13:07:25,938 INFO L158 Benchmark]: CACSL2BoogieTranslator took 238.27ms. Allocated memory is still 167.8MB. Free memory was 133.2MB in the beginning and 118.7MB in the end (delta: 14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-05 13:07:25,938 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.87ms. Allocated memory is still 167.8MB. Free memory was 118.7MB in the beginning and 116.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 13:07:25,939 INFO L158 Benchmark]: Boogie Preprocessor took 44.73ms. Allocated memory is still 167.8MB. Free memory was 116.6MB in the beginning and 114.5MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 13:07:25,939 INFO L158 Benchmark]: IcfgBuilder took 400.00ms. Allocated memory is still 167.8MB. Free memory was 114.5MB in the beginning and 89.0MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-05 13:07:25,939 INFO L158 Benchmark]: TraceAbstraction took 336.09ms. Allocated memory is still 167.8MB. Free memory was 88.1MB in the beginning and 66.7MB in the end (delta: 21.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-05 13:07:25,939 INFO L158 Benchmark]: Witness Printer took 3.29ms. Allocated memory is still 167.8MB. Free memory was 66.7MB in the beginning and 66.7MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 13:07:25,940 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 209.7MB. Free memory is still 123.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 238.27ms. Allocated memory is still 167.8MB. Free memory was 133.2MB in the beginning and 118.7MB in the end (delta: 14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.87ms. Allocated memory is still 167.8MB. Free memory was 118.7MB in the beginning and 116.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 44.73ms. Allocated memory is still 167.8MB. Free memory was 116.6MB in the beginning and 114.5MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 400.00ms. Allocated memory is still 167.8MB. Free memory was 114.5MB in the beginning and 89.0MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 336.09ms. Allocated memory is still 167.8MB. Free memory was 88.1MB in the beginning and 66.7MB in the end (delta: 21.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 3.29ms. Allocated memory is still 167.8MB. Free memory was 66.7MB in the beginning and 66.7MB in the end (delta: 25.3kB). 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: 125]: 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 125, overapproximation of someBinaryFLOATComparisonOperation at line 226, overapproximation of someUnaryDOUBLEoperation at line 44, overapproximation of someUnaryFLOAToperation at line 219. Possible FailurePath: [L29-L34] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L36-L41] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L43-L47] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L49-L51] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L117-L118] static const float tiny_atan2 = 1.0e-30, zero_atan2 = 0.0, pi_lo_atan2 = -8.7422776573e-08; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L218] float x = __VERIFIER_nondet_float(); [L219] float y = -0.0f; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L226] COND TRUE x < 0.0f && y == -0.0f [L228] CALL __ieee754_atan2f(y, x) [L121] float z; [L122] __int32_t k, m, hx, hy, ix, iy; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, y=1000000000000000000000000000028, zero_atan2=0] [L128] COND TRUE 0 VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, y=1000000000000000000000000000028, zero_atan2=0] [L125] ieee_float_shape_type gf_u; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, y=1000000000000000000000000000028, zero_atan2=0] - 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: 17]: 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: 232]: 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: 204]: 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: 199]: 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: 131]: 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: 58]: 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, 114 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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=114occurred 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, 6 NumberOfCodeBlocks, 6 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 [2025-02-05 13:07:25,954 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0660a.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 1c3190f495eae54e4d617ff48fc187597eb553c8ed8ec63a4d85f293d62b08d2 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 13:07:27,965 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 13:07:28,036 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-02-05 13:07:28,040 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 13:07:28,040 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 13:07:28,092 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 13:07:28,097 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 13:07:28,097 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 13:07:28,098 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 13:07:28,098 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 13:07:28,098 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 13:07:28,098 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 13:07:28,098 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 13:07:28,098 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 13:07:28,098 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 13:07:28,098 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 13:07:28,098 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 13:07:28,098 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 13:07:28,098 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 13:07:28,098 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 13:07:28,098 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 13:07:28,099 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 13:07:28,099 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 13:07:28,099 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-05 13:07:28,099 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-05 13:07:28,099 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-05 13:07:28,099 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 13:07:28,099 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 13:07:28,099 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 13:07:28,099 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 13:07:28,099 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 13:07:28,099 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 13:07:28,099 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 13:07:28,099 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 13:07:28,099 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 13:07:28,099 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 13:07:28,099 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 13:07:28,099 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 13:07:28,101 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 13:07:28,101 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-05 13:07:28,101 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-05 13:07:28,101 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 13:07:28,101 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 13:07:28,101 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 13:07:28,102 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 13:07:28,102 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-jdk21/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 -> 1c3190f495eae54e4d617ff48fc187597eb553c8ed8ec63a4d85f293d62b08d2 [2025-02-05 13:07:28,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 13:07:28,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 13:07:28,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 13:07:28,363 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 13:07:28,364 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 13:07:28,365 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0660a.c [2025-02-05 13:07:29,537 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2c483ea8f/d631b84cb2f94704bc4fa20e68dc1559/FLAGf87bc834b [2025-02-05 13:07:29,768 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 13:07:29,768 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0660a.c [2025-02-05 13:07:29,776 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2c483ea8f/d631b84cb2f94704bc4fa20e68dc1559/FLAGf87bc834b [2025-02-05 13:07:29,792 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2c483ea8f/d631b84cb2f94704bc4fa20e68dc1559 [2025-02-05 13:07:29,794 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 13:07:29,795 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 13:07:29,796 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 13:07:29,796 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 13:07:29,799 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 13:07:29,800 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 01:07:29" (1/1) ... [2025-02-05 13:07:29,800 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44889c29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:07:29, skipping insertion in model container [2025-02-05 13:07:29,802 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 01:07:29" (1/1) ... [2025-02-05 13:07:29,816 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 13:07:29,973 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0660a.c[5286,5299] [2025-02-05 13:07:29,976 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 13:07:29,992 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 13:07:30,039 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0660a.c[5286,5299] [2025-02-05 13:07:30,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 13:07:30,059 INFO L204 MainTranslator]: Completed translation [2025-02-05 13:07:30,060 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:07:30 WrapperNode [2025-02-05 13:07:30,061 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 13:07:30,061 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 13:07:30,061 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 13:07:30,061 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 13:07:30,065 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:07:30" (1/1) ... [2025-02-05 13:07:30,079 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:07:30" (1/1) ... [2025-02-05 13:07:30,108 INFO L138 Inliner]: procedures = 23, calls = 79, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 216 [2025-02-05 13:07:30,108 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 13:07:30,110 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 13:07:30,110 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 13:07:30,110 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 13:07:30,116 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:07:30" (1/1) ... [2025-02-05 13:07:30,116 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:07:30" (1/1) ... [2025-02-05 13:07:30,122 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:07:30" (1/1) ... [2025-02-05 13:07:30,145 INFO L175 MemorySlicer]: Split 53 memory accesses to 11 slices as follows [2, 7, 7, 2, 23, 2, 2, 2, 2, 2, 2]. 43 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 4, 4, 0, 0, 0, 0, 0, 0, 0, 0]. The 19 writes are split as follows [0, 0, 0, 1, 12, 1, 1, 1, 1, 1, 1]. [2025-02-05 13:07:30,145 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:07:30" (1/1) ... [2025-02-05 13:07:30,145 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:07:30" (1/1) ... [2025-02-05 13:07:30,168 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:07:30" (1/1) ... [2025-02-05 13:07:30,173 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:07:30" (1/1) ... [2025-02-05 13:07:30,176 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:07:30" (1/1) ... [2025-02-05 13:07:30,181 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:07:30" (1/1) ... [2025-02-05 13:07:30,189 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 13:07:30,190 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 13:07:30,191 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 13:07:30,191 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 13:07:30,193 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:07:30" (1/1) ... [2025-02-05 13:07:30,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 13:07:30,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 13:07:30,221 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-05 13:07:30,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-05 13:07:30,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 13:07:30,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2025-02-05 13:07:30,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2025-02-05 13:07:30,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2025-02-05 13:07:30,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2025-02-05 13:07:30,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2025-02-05 13:07:30,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2025-02-05 13:07:30,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6 [2025-02-05 13:07:30,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#7 [2025-02-05 13:07:30,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#8 [2025-02-05 13:07:30,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#9 [2025-02-05 13:07:30,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#10 [2025-02-05 13:07:30,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-05 13:07:30,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-05 13:07:30,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-02-05 13:07:30,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2025-02-05 13:07:30,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2025-02-05 13:07:30,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2025-02-05 13:07:30,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2025-02-05 13:07:30,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2025-02-05 13:07:30,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2025-02-05 13:07:30,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2025-02-05 13:07:30,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2025-02-05 13:07:30,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-05 13:07:30,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2025-02-05 13:07:30,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2025-02-05 13:07:30,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2025-02-05 13:07:30,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2025-02-05 13:07:30,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2025-02-05 13:07:30,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2025-02-05 13:07:30,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2025-02-05 13:07:30,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2025-02-05 13:07:30,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2025-02-05 13:07:30,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9 [2025-02-05 13:07:30,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10 [2025-02-05 13:07:30,245 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2025-02-05 13:07:30,245 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2025-02-05 13:07:30,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-05 13:07:30,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-02-05 13:07:30,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-02-05 13:07:30,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2025-02-05 13:07:30,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2025-02-05 13:07:30,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2025-02-05 13:07:30,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2025-02-05 13:07:30,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2025-02-05 13:07:30,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2025-02-05 13:07:30,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2025-02-05 13:07:30,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2025-02-05 13:07:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0 [2025-02-05 13:07:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1 [2025-02-05 13:07:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#2 [2025-02-05 13:07:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#3 [2025-02-05 13:07:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#4 [2025-02-05 13:07:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#5 [2025-02-05 13:07:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#6 [2025-02-05 13:07:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#7 [2025-02-05 13:07:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#8 [2025-02-05 13:07:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#9 [2025-02-05 13:07:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#10 [2025-02-05 13:07:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 13:07:30,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 13:07:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2025-02-05 13:07:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2025-02-05 13:07:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2025-02-05 13:07:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2025-02-05 13:07:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2025-02-05 13:07:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2025-02-05 13:07:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2025-02-05 13:07:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2025-02-05 13:07:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2025-02-05 13:07:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9 [2025-02-05 13:07:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10 [2025-02-05 13:07:30,249 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2025-02-05 13:07:30,249 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2025-02-05 13:07:30,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-02-05 13:07:30,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-02-05 13:07:30,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-02-05 13:07:30,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2025-02-05 13:07:30,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2025-02-05 13:07:30,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2025-02-05 13:07:30,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2025-02-05 13:07:30,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2025-02-05 13:07:30,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2025-02-05 13:07:30,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2025-02-05 13:07:30,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2025-02-05 13:07:30,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-05 13:07:30,392 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 13:07:30,394 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 13:07:53,542 INFO L? ?]: Removed 77 outVars from TransFormulas that were not future-live. [2025-02-05 13:07:53,543 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 13:07:53,549 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 13:07:53,549 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 13:07:53,550 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 01:07:53 BoogieIcfgContainer [2025-02-05 13:07:53,550 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 13:07:53,551 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 13:07:53,551 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 13:07:53,554 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 13:07:53,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 01:07:29" (1/3) ... [2025-02-05 13:07:53,555 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53715657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 01:07:53, skipping insertion in model container [2025-02-05 13:07:53,555 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:07:30" (2/3) ... [2025-02-05 13:07:53,555 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53715657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 01:07:53, skipping insertion in model container [2025-02-05 13:07:53,555 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 01:07:53" (3/3) ... [2025-02-05 13:07:53,556 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_0660a.c [2025-02-05 13:07:53,565 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 13:07:53,566 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_0660a.c that has 3 procedures, 86 locations, 1 initial locations, 7 loop locations, and 1 error locations. [2025-02-05 13:07:53,604 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 13:07:53,614 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;@dcf996d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 13:07:53,616 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-05 13:07:53,618 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 78 states have (on average 1.6666666666666667) internal successors, (130), 79 states have internal predecessors, (130), 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) [2025-02-05 13:07:53,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-02-05 13:07:53,624 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 13:07:53,625 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 13:07:53,625 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 13:07:53,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 13:07:53,631 INFO L85 PathProgramCache]: Analyzing trace with hash 641793816, now seen corresponding path program 1 times [2025-02-05 13:07:53,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-05 13:07:53,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1848608188] [2025-02-05 13:07:53,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 13:07:53,644 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 [2025-02-05 13:07:53,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-05 13:07:53,647 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/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) [2025-02-05 13:07:53,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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 [2025-02-05 13:07:53,730 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-05 13:07:54,389 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-05 13:07:54,390 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 13:07:54,390 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 13:07:54,421 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-05 13:07:54,428 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 13:07:54,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 13:07:54,443 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 13:07:54,443 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-05 13:07:54,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1848608188] [2025-02-05 13:07:54,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1848608188] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 13:07:54,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 13:07:54,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-05 13:07:54,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537910310] [2025-02-05 13:07:54,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 13:07:54,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-05 13:07:54,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-05 13:07:54,461 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-05 13:07:54,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 13:07:54,463 INFO L87 Difference]: Start difference. First operand has 86 states, 78 states have (on average 1.6666666666666667) internal successors, (130), 79 states have internal predecessors, (130), 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 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2025-02-05 13:07:54,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 13:07:54,487 INFO L93 Difference]: Finished difference Result 169 states and 276 transitions. [2025-02-05 13:07:54,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-05 13:07:54,490 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2025-02-05 13:07:54,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 13:07:54,495 INFO L225 Difference]: With dead ends: 169 [2025-02-05 13:07:54,496 INFO L226 Difference]: Without dead ends: 82 [2025-02-05 13:07:54,499 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 13:07:54,502 INFO L435 NwaCegarLoop]: 123 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, 123 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 [2025-02-05 13:07:54,504 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 13:07:54,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2025-02-05 13:07:54,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2025-02-05 13:07:54,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 75 states have (on average 1.4666666666666666) internal successors, (110), 75 states have internal predecessors, (110), 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) [2025-02-05 13:07:54,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 118 transitions. [2025-02-05 13:07:54,536 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 118 transitions. Word has length 11 [2025-02-05 13:07:54,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 13:07:54,537 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 118 transitions. [2025-02-05 13:07:54,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2025-02-05 13:07:54,537 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 118 transitions. [2025-02-05 13:07:54,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-02-05 13:07:54,537 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 13:07:54,538 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 13:07:54,565 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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 [2025-02-05 13:07:54,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/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 [2025-02-05 13:07:54,739 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 13:07:54,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 13:07:54,739 INFO L85 PathProgramCache]: Analyzing trace with hash -499372485, now seen corresponding path program 1 times [2025-02-05 13:07:54,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-05 13:07:54,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [703235375] [2025-02-05 13:07:54,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 13:07:54,740 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 [2025-02-05 13:07:54,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-05 13:07:54,742 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/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) [2025-02-05 13:07:54,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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 [2025-02-05 13:07:54,829 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-05 13:07:55,491 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-05 13:07:55,491 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 13:07:55,491 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 13:07:55,524 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-02-05 13:07:55,533 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 13:07:55,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-05 13:07:55,843 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2025-02-05 13:08:01,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 13:08:01,205 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 13:08:01,205 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-05 13:08:01,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [703235375] [2025-02-05 13:08:01,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [703235375] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 13:08:01,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 13:08:01,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-05 13:08:01,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929685350] [2025-02-05 13:08:01,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 13:08:01,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-05 13:08:01,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-05 13:08:01,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-05 13:08:01,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=42, Unknown=1, NotChecked=0, Total=56 [2025-02-05 13:08:01,207 INFO L87 Difference]: Start difference. First operand 82 states and 118 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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) [2025-02-05 13:08:05,243 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] [2025-02-05 13:08:13,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-02-05 13:08:15,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-02-05 13:08:15,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 13:08:15,496 INFO L93 Difference]: Finished difference Result 153 states and 217 transitions. [2025-02-05 13:08:15,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-05 13:08:15,497 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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 13 [2025-02-05 13:08:15,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 13:08:15,499 INFO L225 Difference]: With dead ends: 153 [2025-02-05 13:08:15,499 INFO L226 Difference]: Without dead ends: 89 [2025-02-05 13:08:15,500 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=46, Invalid=109, Unknown=1, NotChecked=0, Total=156 [2025-02-05 13:08:15,500 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 195 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2025-02-05 13:08:15,500 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 461 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 69 Invalid, 2 Unknown, 0 Unchecked, 11.3s Time] [2025-02-05 13:08:15,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2025-02-05 13:08:15,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 75. [2025-02-05 13:08:15,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 69 states have (on average 1.3623188405797102) internal successors, (94), 69 states have internal predecessors, (94), 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) [2025-02-05 13:08:15,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 100 transitions. [2025-02-05 13:08:15,510 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 100 transitions. Word has length 13 [2025-02-05 13:08:15,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 13:08:15,510 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 100 transitions. [2025-02-05 13:08:15,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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) [2025-02-05 13:08:15,510 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 100 transitions. [2025-02-05 13:08:15,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-02-05 13:08:15,510 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 13:08:15,511 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 13:08:15,536 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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 [2025-02-05 13:08:15,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/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 [2025-02-05 13:08:15,715 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 13:08:15,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 13:08:15,717 INFO L85 PathProgramCache]: Analyzing trace with hash -441409042, now seen corresponding path program 1 times [2025-02-05 13:08:15,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-05 13:08:15,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [777128823] [2025-02-05 13:08:15,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 13:08:15,717 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 [2025-02-05 13:08:15,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-05 13:08:15,719 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/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) [2025-02-05 13:08:15,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2025-02-05 13:08:15,808 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-05 13:08:16,452 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-05 13:08:16,453 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 13:08:16,453 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 13:08:16,482 INFO L256 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-05 13:08:16,484 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 13:08:16,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-05 13:08:16,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2025-02-05 13:08:17,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 13:08:17,433 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 13:08:17,433 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-05 13:08:17,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [777128823] [2025-02-05 13:08:17,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [777128823] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 13:08:17,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 13:08:17,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-05 13:08:17,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520187855] [2025-02-05 13:08:17,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 13:08:17,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-05 13:08:17,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-05 13:08:17,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-05 13:08:17,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-05 13:08:17,435 INFO L87 Difference]: Start difference. First operand 75 states and 100 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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) [2025-02-05 13:08:18,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 13:08:18,993 INFO L93 Difference]: Finished difference Result 139 states and 188 transitions. [2025-02-05 13:08:18,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-05 13:08:18,993 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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 18 [2025-02-05 13:08:18,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 13:08:18,997 INFO L225 Difference]: With dead ends: 139 [2025-02-05 13:08:18,998 INFO L226 Difference]: Without dead ends: 77 [2025-02-05 13:08:18,998 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2025-02-05 13:08:18,999 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 129 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-02-05 13:08:19,001 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 382 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-02-05 13:08:19,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2025-02-05 13:08:19,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 75. [2025-02-05 13:08:19,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 69 states have (on average 1.3333333333333333) internal successors, (92), 69 states have internal predecessors, (92), 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) [2025-02-05 13:08:19,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 98 transitions. [2025-02-05 13:08:19,015 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 98 transitions. Word has length 18 [2025-02-05 13:08:19,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 13:08:19,017 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 98 transitions. [2025-02-05 13:08:19,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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) [2025-02-05 13:08:19,017 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 98 transitions. [2025-02-05 13:08:19,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-02-05 13:08:19,017 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 13:08:19,017 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 13:08:19,046 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2025-02-05 13:08:19,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/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 [2025-02-05 13:08:19,222 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 13:08:19,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 13:08:19,224 INFO L85 PathProgramCache]: Analyzing trace with hash -412779891, now seen corresponding path program 1 times [2025-02-05 13:08:19,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-05 13:08:19,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1733197065] [2025-02-05 13:08:19,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 13:08:19,224 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 [2025-02-05 13:08:19,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-05 13:08:19,228 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/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) [2025-02-05 13:08:19,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2025-02-05 13:08:19,289 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-05 13:08:19,963 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-05 13:08:19,963 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 13:08:19,963 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 13:08:19,994 INFO L256 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-05 13:08:19,996 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 13:08:21,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 13:08:21,239 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 13:08:21,239 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-05 13:08:21,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1733197065] [2025-02-05 13:08:21,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1733197065] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 13:08:21,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 13:08:21,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-05 13:08:21,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763289429] [2025-02-05 13:08:21,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 13:08:21,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-05 13:08:21,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-05 13:08:21,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-05 13:08:21,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-05 13:08:21,240 INFO L87 Difference]: Start difference. First operand 75 states and 98 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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) [2025-02-05 13:08:22,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 13:08:22,636 INFO L93 Difference]: Finished difference Result 93 states and 119 transitions. [2025-02-05 13:08:22,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-05 13:08:22,637 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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 18 [2025-02-05 13:08:22,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 13:08:22,638 INFO L225 Difference]: With dead ends: 93 [2025-02-05 13:08:22,638 INFO L226 Difference]: Without dead ends: 89 [2025-02-05 13:08:22,639 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2025-02-05 13:08:22,640 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 147 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-02-05 13:08:22,640 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 309 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-02-05 13:08:22,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2025-02-05 13:08:22,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 75. [2025-02-05 13:08:22,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 69 states have (on average 1.318840579710145) internal successors, (91), 69 states have internal predecessors, (91), 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) [2025-02-05 13:08:22,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 97 transitions. [2025-02-05 13:08:22,650 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 97 transitions. Word has length 18 [2025-02-05 13:08:22,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 13:08:22,650 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 97 transitions. [2025-02-05 13:08:22,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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) [2025-02-05 13:08:22,651 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 97 transitions. [2025-02-05 13:08:22,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-02-05 13:08:22,651 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 13:08:22,651 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 13:08:22,678 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2025-02-05 13:08:22,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/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 [2025-02-05 13:08:22,852 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 13:08:22,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 13:08:22,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1396746031, now seen corresponding path program 1 times [2025-02-05 13:08:22,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-05 13:08:22,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [631253549] [2025-02-05 13:08:22,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 13:08:22,854 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 [2025-02-05 13:08:22,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-05 13:08:22,856 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/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) [2025-02-05 13:08:22,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2025-02-05 13:08:22,922 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-05 13:08:23,615 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-05 13:08:23,616 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 13:08:23,616 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 13:08:23,650 INFO L256 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-05 13:08:23,651 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 13:08:25,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 13:08:25,501 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 13:08:25,501 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-05 13:08:25,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [631253549] [2025-02-05 13:08:25,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [631253549] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 13:08:25,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 13:08:25,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 13:08:25,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592954882] [2025-02-05 13:08:25,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 13:08:25,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 13:08:25,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-05 13:08:25,502 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 13:08:25,502 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-05 13:08:25,502 INFO L87 Difference]: Start difference. First operand 75 states and 97 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2025-02-05 13:08:35,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-05 13:08:39,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-05 13:08:43,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-05 13:08:45,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-02-05 13:08:49,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-05 13:08:53,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-05 13:08:57,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-05 13:09:02,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-02-05 13:09:05,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.42s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-02-05 13:09:07,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []