./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cdfpl/newton_3_8.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d 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/floats-cdfpl/newton_3_8.i -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 3d5c9a042714ec99fe52d86211c8b4da5d2ba3d5759e35d6939f68d62f0ae59d --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 18:22:37,501 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 18:22:37,550 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-07 18:22:37,553 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 18:22:37,553 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 18:22:37,571 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 18:22:37,573 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 18:22:37,573 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 18:22:37,573 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 18:22:37,574 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 18:22:37,574 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 18:22:37,574 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 18:22:37,575 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 18:22:37,575 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 18:22:37,575 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 18:22:37,575 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 18:22:37,575 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 18:22:37,576 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 18:22:37,576 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-07 18:22:37,576 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 18:22:37,576 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 18:22:37,576 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 18:22:37,576 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 18:22:37,576 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 18:22:37,576 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 18:22:37,576 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 18:22:37,576 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 18:22:37,576 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 18:22:37,576 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 18:22:37,576 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 18:22:37,577 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 18:22:37,577 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 18:22:37,577 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 18:22:37,577 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 18:22:37,577 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 18:22:37,577 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 18:22:37,577 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 18:22:37,578 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-07 18:22:37,578 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-07 18:22:37,578 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 18:22:37,578 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 18:22:37,578 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 18:22:37,578 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 18:22:37,578 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 -> 3d5c9a042714ec99fe52d86211c8b4da5d2ba3d5759e35d6939f68d62f0ae59d [2025-02-07 18:22:37,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 18:22:37,794 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 18:22:37,796 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 18:22:37,796 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 18:22:37,797 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 18:22:37,801 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_3_8.i [2025-02-07 18:22:38,957 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6484e79b0/a013de2ebb6b41b09ea27f4326427bd5/FLAGc9cee8a59 [2025-02-07 18:22:39,195 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 18:22:39,197 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_3_8.i [2025-02-07 18:22:39,209 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6484e79b0/a013de2ebb6b41b09ea27f4326427bd5/FLAGc9cee8a59 [2025-02-07 18:22:39,221 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6484e79b0/a013de2ebb6b41b09ea27f4326427bd5 [2025-02-07 18:22:39,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 18:22:39,225 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 18:22:39,227 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 18:22:39,227 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 18:22:39,230 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 18:22:39,230 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 06:22:39" (1/1) ... [2025-02-07 18:22:39,231 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@478a3c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:22:39, skipping insertion in model container [2025-02-07 18:22:39,231 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 06:22:39" (1/1) ... [2025-02-07 18:22:39,243 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 18:22:39,360 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/floats-cdfpl/newton_3_8.i[1764,1777] [2025-02-07 18:22:39,362 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 18:22:39,369 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 18:22:39,382 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/floats-cdfpl/newton_3_8.i[1764,1777] [2025-02-07 18:22:39,383 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 18:22:39,394 INFO L204 MainTranslator]: Completed translation [2025-02-07 18:22:39,395 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:22:39 WrapperNode [2025-02-07 18:22:39,395 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 18:22:39,397 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 18:22:39,397 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 18:22:39,397 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 18:22:39,403 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:22:39" (1/1) ... [2025-02-07 18:22:39,408 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:22:39" (1/1) ... [2025-02-07 18:22:39,421 INFO L138 Inliner]: procedures = 17, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2025-02-07 18:22:39,422 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 18:22:39,423 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 18:22:39,424 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 18:22:39,424 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 18:22:39,429 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:22:39" (1/1) ... [2025-02-07 18:22:39,429 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:22:39" (1/1) ... [2025-02-07 18:22:39,430 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:22:39" (1/1) ... [2025-02-07 18:22:39,438 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-07 18:22:39,441 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:22:39" (1/1) ... [2025-02-07 18:22:39,442 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:22:39" (1/1) ... [2025-02-07 18:22:39,445 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:22:39" (1/1) ... [2025-02-07 18:22:39,446 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:22:39" (1/1) ... [2025-02-07 18:22:39,448 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:22:39" (1/1) ... [2025-02-07 18:22:39,448 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:22:39" (1/1) ... [2025-02-07 18:22:39,449 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 18:22:39,451 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 18:22:39,451 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 18:22:39,451 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 18:22:39,452 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:22:39" (1/1) ... [2025-02-07 18:22:39,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 18:22:39,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 18:22:39,482 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) [2025-02-07 18:22:39,485 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 [2025-02-07 18:22:39,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 18:22:39,502 INFO L130 BoogieDeclarations]: Found specification of procedure f [2025-02-07 18:22:39,502 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2025-02-07 18:22:39,502 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2025-02-07 18:22:39,502 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2025-02-07 18:22:39,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-07 18:22:39,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 18:22:39,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 18:22:39,547 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 18:22:39,549 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 18:22:39,668 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2025-02-07 18:22:39,668 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 18:22:39,678 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 18:22:39,678 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 18:22:39,679 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:22:39 BoogieIcfgContainer [2025-02-07 18:22:39,679 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 18:22:39,681 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 18:22:39,681 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 18:22:39,685 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 18:22:39,686 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 06:22:39" (1/3) ... [2025-02-07 18:22:39,686 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4965ca5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 06:22:39, skipping insertion in model container [2025-02-07 18:22:39,686 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:22:39" (2/3) ... [2025-02-07 18:22:39,687 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4965ca5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 06:22:39, skipping insertion in model container [2025-02-07 18:22:39,687 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:22:39" (3/3) ... [2025-02-07 18:22:39,688 INFO L128 eAbstractionObserver]: Analyzing ICFG newton_3_8.i [2025-02-07 18:22:39,700 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 18:22:39,701 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG newton_3_8.i that has 3 procedures, 24 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-07 18:22:39,737 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 18:22:39,748 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;@76995339, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 18:22:39,749 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-07 18:22:39,751 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-07 18:22:39,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2025-02-07 18:22:39,755 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 18:22:39,756 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 18:22:39,756 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 18:22:39,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 18:22:39,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1386508632, now seen corresponding path program 1 times [2025-02-07 18:22:39,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 18:22:39,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958256769] [2025-02-07 18:22:39,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 18:22:39,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 18:22:39,822 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-02-07 18:22:39,830 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-02-07 18:22:39,831 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 18:22:39,831 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 18:22:39,856 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-02-07 18:22:39,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 18:22:39,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958256769] [2025-02-07 18:22:39,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958256769] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 18:22:39,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 18:22:39,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-07 18:22:39,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006315789] [2025-02-07 18:22:39,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 18:22:39,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-07 18:22:39,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 18:22:39,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-07 18:22:39,873 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-07 18:22:39,874 INFO L87 Difference]: Start difference. First operand has 24 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2025-02-07 18:22:39,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 18:22:39,884 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2025-02-07 18:22:39,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-07 18:22:39,885 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 32 [2025-02-07 18:22:39,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 18:22:39,888 INFO L225 Difference]: With dead ends: 46 [2025-02-07 18:22:39,888 INFO L226 Difference]: Without dead ends: 21 [2025-02-07 18:22:39,890 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-07 18:22:39,892 INFO L435 NwaCegarLoop]: 27 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, 27 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 [2025-02-07 18:22:39,892 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-07 18:22:39,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2025-02-07 18:22:39,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2025-02-07 18:22:39,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 12 states have (on average 1.0) internal successors, (12), 12 states have internal predecessors, (12), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-07 18:22:39,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2025-02-07 18:22:39,918 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 32 [2025-02-07 18:22:39,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 18:22:39,918 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2025-02-07 18:22:39,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2025-02-07 18:22:39,918 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2025-02-07 18:22:39,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2025-02-07 18:22:39,919 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 18:22:39,919 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 18:22:39,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-07 18:22:39,920 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 18:22:39,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 18:22:39,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1737308569, now seen corresponding path program 1 times [2025-02-07 18:22:39,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 18:22:39,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503653331] [2025-02-07 18:22:39,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 18:22:39,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 18:22:39,932 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-02-07 18:22:39,939 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-02-07 18:22:39,941 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 18:22:39,942 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 18:22:39,942 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-07 18:22:39,949 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-02-07 18:22:39,961 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-02-07 18:22:39,964 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 18:22:39,964 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 18:22:39,977 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-07 18:22:39,977 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-07 18:22:39,978 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-07 18:22:39,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-07 18:22:39,981 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-07 18:22:39,993 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 18:22:39,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 06:22:39 BoogieIcfgContainer [2025-02-07 18:22:39,997 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 18:22:39,998 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 18:22:39,998 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 18:22:39,998 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 18:22:39,999 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:22:39" (3/4) ... [2025-02-07 18:22:40,000 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-07 18:22:40,001 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 18:22:40,002 INFO L158 Benchmark]: Toolchain (without parser) took 776.51ms. Allocated memory is still 167.8MB. Free memory was 124.0MB in the beginning and 76.1MB in the end (delta: 47.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-02-07 18:22:40,002 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 201.3MB. Free memory is still 116.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:22:40,002 INFO L158 Benchmark]: CACSL2BoogieTranslator took 169.96ms. Allocated memory is still 167.8MB. Free memory was 123.2MB in the beginning and 112.6MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 18:22:40,002 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.55ms. Allocated memory is still 167.8MB. Free memory was 112.6MB in the beginning and 111.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:22:40,002 INFO L158 Benchmark]: Boogie Preprocessor took 27.88ms. Allocated memory is still 167.8MB. Free memory was 111.0MB in the beginning and 110.3MB in the end (delta: 771.3kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:22:40,003 INFO L158 Benchmark]: IcfgBuilder took 227.95ms. Allocated memory is still 167.8MB. Free memory was 110.3MB in the beginning and 98.2MB in the end (delta: 12.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-07 18:22:40,003 INFO L158 Benchmark]: TraceAbstraction took 316.95ms. Allocated memory is still 167.8MB. Free memory was 97.4MB in the beginning and 76.7MB in the end (delta: 20.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-07 18:22:40,003 INFO L158 Benchmark]: Witness Printer took 3.00ms. Allocated memory is still 167.8MB. Free memory was 76.7MB in the beginning and 76.1MB in the end (delta: 627.5kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:22:40,004 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 201.3MB. Free memory is still 116.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 169.96ms. Allocated memory is still 167.8MB. Free memory was 123.2MB in the beginning and 112.6MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.55ms. Allocated memory is still 167.8MB. Free memory was 112.6MB in the beginning and 111.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.88ms. Allocated memory is still 167.8MB. Free memory was 111.0MB in the beginning and 110.3MB in the end (delta: 771.3kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 227.95ms. Allocated memory is still 167.8MB. Free memory was 110.3MB in the beginning and 98.2MB in the end (delta: 12.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 316.95ms. Allocated memory is still 167.8MB. Free memory was 97.4MB in the beginning and 76.7MB in the end (delta: 20.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.00ms. Allocated memory is still 167.8MB. Free memory was 76.7MB in the beginning and 76.1MB in the end (delta: 627.5kB). 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: 51]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 40, overapproximation of someBinaryDOUBLEComparisonOperation at line 50, overapproximation of someBinaryArithmeticFLOAToperation at line 42, overapproximation of someBinaryArithmeticFLOAToperation at line 34, overapproximation of someBinaryArithmeticFLOAToperation at line 46, overapproximation of someBinaryArithmeticFLOAToperation at line 29, overapproximation of someBinaryArithmeticFLOAToperation at line 44. Possible FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -2.0f && IN < 2.0f) [L24] COND FALSE !(!cond) [L40] RET assume_abort_if_not(IN > -2.0f && IN < 2.0f) [L42] CALL, EXPR f(IN) VAL [\old(x)=54] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=54] [L42] RET, EXPR f(IN) VAL [IN=54] [L42] CALL, EXPR fp(IN) VAL [\old(x)=54] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=54] [L42] RET, EXPR fp(IN) VAL [IN=54] [L42] float x = IN - f(IN)/fp(IN); [L44] CALL, EXPR f(x) VAL [\old(x)=53] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=53] [L44] RET, EXPR f(x) VAL [IN=54, x=53] [L44] CALL, EXPR fp(x) VAL [\old(x)=53] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=53] [L44] RET, EXPR fp(x) VAL [IN=54, x=53] [L44] x = x - f(x)/fp(x) [L46] CALL, EXPR f(x) VAL [\old(x)=55] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=55] [L46] RET, EXPR f(x) VAL [IN=54, x=55] [L46] CALL, EXPR fp(x) VAL [\old(x)=55] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=55] [L46] RET, EXPR fp(x) VAL [IN=54, x=55] [L46] x = x - f(x)/fp(x) [L50] COND TRUE !(x < 0.1) VAL [IN=54] [L51] reach_error() VAL [IN=54] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 27 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 31 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 18/18 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 [2025-02-07 18:22:40,021 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/floats-cdfpl/newton_3_8.i -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 3d5c9a042714ec99fe52d86211c8b4da5d2ba3d5759e35d6939f68d62f0ae59d --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 18:22:41,866 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 18:22:41,952 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-02-07 18:22:41,958 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 18:22:41,958 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 18:22:41,976 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 18:22:41,976 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 18:22:41,977 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 18:22:41,977 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 18:22:41,977 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 18:22:41,977 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 18:22:41,978 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 18:22:41,978 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 18:22:41,978 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 18:22:41,978 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 18:22:41,979 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 18:22:41,979 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 18:22:41,979 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 18:22:41,979 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 18:22:41,979 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 18:22:41,979 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 18:22:41,979 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 18:22:41,979 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 18:22:41,979 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-07 18:22:41,979 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-07 18:22:41,979 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-07 18:22:41,979 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 18:22:41,979 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 18:22:41,979 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 18:22:41,979 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 18:22:41,979 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 18:22:41,979 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 18:22:41,979 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 18:22:41,979 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 18:22:41,979 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 18:22:41,979 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 18:22:41,979 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 18:22:41,979 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 18:22:41,979 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 18:22:41,980 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-07 18:22:41,980 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-07 18:22:41,980 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 18:22:41,980 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 18:22:41,980 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 18:22:41,980 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 18:22:41,980 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 -> 3d5c9a042714ec99fe52d86211c8b4da5d2ba3d5759e35d6939f68d62f0ae59d [2025-02-07 18:22:42,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 18:22:42,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 18:22:42,248 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 18:22:42,249 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 18:22:42,250 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 18:22:42,251 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_3_8.i [2025-02-07 18:22:43,430 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3986b7780/1b83be8a65fa4566aed2c40120edf40d/FLAG620e6aab5 [2025-02-07 18:22:43,650 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 18:22:43,651 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_3_8.i [2025-02-07 18:22:43,657 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3986b7780/1b83be8a65fa4566aed2c40120edf40d/FLAG620e6aab5 [2025-02-07 18:22:44,008 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3986b7780/1b83be8a65fa4566aed2c40120edf40d [2025-02-07 18:22:44,010 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 18:22:44,012 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 18:22:44,013 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 18:22:44,013 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 18:22:44,016 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 18:22:44,017 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 06:22:44" (1/1) ... [2025-02-07 18:22:44,017 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fe9c4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:22:44, skipping insertion in model container [2025-02-07 18:22:44,017 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 06:22:44" (1/1) ... [2025-02-07 18:22:44,027 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 18:22:44,135 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/floats-cdfpl/newton_3_8.i[1764,1777] [2025-02-07 18:22:44,138 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 18:22:44,146 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 18:22:44,156 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/floats-cdfpl/newton_3_8.i[1764,1777] [2025-02-07 18:22:44,157 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 18:22:44,167 INFO L204 MainTranslator]: Completed translation [2025-02-07 18:22:44,168 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:22:44 WrapperNode [2025-02-07 18:22:44,168 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 18:22:44,169 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 18:22:44,169 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 18:22:44,169 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 18:22:44,173 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:22:44" (1/1) ... [2025-02-07 18:22:44,178 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:22:44" (1/1) ... [2025-02-07 18:22:44,187 INFO L138 Inliner]: procedures = 18, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2025-02-07 18:22:44,187 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 18:22:44,188 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 18:22:44,188 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 18:22:44,188 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 18:22:44,193 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:22:44" (1/1) ... [2025-02-07 18:22:44,194 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:22:44" (1/1) ... [2025-02-07 18:22:44,195 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:22:44" (1/1) ... [2025-02-07 18:22:44,202 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-07 18:22:44,202 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:22:44" (1/1) ... [2025-02-07 18:22:44,202 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:22:44" (1/1) ... [2025-02-07 18:22:44,206 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:22:44" (1/1) ... [2025-02-07 18:22:44,207 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:22:44" (1/1) ... [2025-02-07 18:22:44,207 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:22:44" (1/1) ... [2025-02-07 18:22:44,208 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:22:44" (1/1) ... [2025-02-07 18:22:44,209 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 18:22:44,210 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 18:22:44,210 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 18:22:44,210 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 18:22:44,211 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:22:44" (1/1) ... [2025-02-07 18:22:44,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 18:22:44,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 18:22:44,233 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) [2025-02-07 18:22:44,238 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 [2025-02-07 18:22:44,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 18:22:44,253 INFO L130 BoogieDeclarations]: Found specification of procedure f [2025-02-07 18:22:44,253 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2025-02-07 18:22:44,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-07 18:22:44,253 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2025-02-07 18:22:44,253 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2025-02-07 18:22:44,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 18:22:44,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 18:22:44,300 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 18:22:44,301 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 18:22:56,353 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2025-02-07 18:22:56,353 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 18:22:56,368 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 18:22:56,368 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 18:22:56,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:22:56 BoogieIcfgContainer [2025-02-07 18:22:56,368 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 18:22:56,370 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 18:22:56,370 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 18:22:56,374 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 18:22:56,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 06:22:44" (1/3) ... [2025-02-07 18:22:56,375 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@510ad67f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 06:22:56, skipping insertion in model container [2025-02-07 18:22:56,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:22:44" (2/3) ... [2025-02-07 18:22:56,375 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@510ad67f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 06:22:56, skipping insertion in model container [2025-02-07 18:22:56,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:22:56" (3/3) ... [2025-02-07 18:22:56,377 INFO L128 eAbstractionObserver]: Analyzing ICFG newton_3_8.i [2025-02-07 18:22:56,386 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 18:22:56,388 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG newton_3_8.i that has 3 procedures, 24 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-07 18:22:56,425 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 18:22:56,432 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;@20968224, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 18:22:56,432 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-07 18:22:56,435 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-07 18:22:56,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2025-02-07 18:22:56,439 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 18:22:56,439 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 18:22:56,440 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 18:22:56,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 18:22:56,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1386508632, now seen corresponding path program 1 times [2025-02-07 18:22:56,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-07 18:22:56,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [294076725] [2025-02-07 18:22:56,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 18:22:56,451 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 [2025-02-07 18:22:56,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-07 18:22:56,453 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) [2025-02-07 18:22:56,456 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 [2025-02-07 18:22:56,510 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-02-07 18:22:58,902 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-02-07 18:22:58,903 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 18:22:58,903 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 18:22:58,991 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-07 18:22:58,995 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-07 18:22:59,013 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-02-07 18:22:59,013 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-07 18:22:59,014 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-07 18:22:59,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [294076725] [2025-02-07 18:22:59,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [294076725] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 18:22:59,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 18:22:59,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-07 18:22:59,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030575039] [2025-02-07 18:22:59,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 18:22:59,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-07 18:22:59,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-07 18:22:59,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-07 18:22:59,055 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-07 18:22:59,056 INFO L87 Difference]: Start difference. First operand has 24 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2025-02-07 18:22:59,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 18:22:59,069 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2025-02-07 18:22:59,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-07 18:22:59,071 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 32 [2025-02-07 18:22:59,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 18:22:59,074 INFO L225 Difference]: With dead ends: 46 [2025-02-07 18:22:59,075 INFO L226 Difference]: Without dead ends: 21 [2025-02-07 18:22:59,077 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-07 18:22:59,080 INFO L435 NwaCegarLoop]: 27 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, 27 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 [2025-02-07 18:22:59,081 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-07 18:22:59,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2025-02-07 18:22:59,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2025-02-07 18:22:59,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 12 states have (on average 1.0) internal successors, (12), 12 states have internal predecessors, (12), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-07 18:22:59,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2025-02-07 18:22:59,107 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 32 [2025-02-07 18:22:59,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 18:22:59,108 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2025-02-07 18:22:59,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2025-02-07 18:22:59,108 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2025-02-07 18:22:59,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2025-02-07 18:22:59,109 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 18:22:59,109 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 18:22:59,180 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 [2025-02-07 18:22:59,315 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 [2025-02-07 18:22:59,315 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 18:22:59,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 18:22:59,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1737308569, now seen corresponding path program 1 times [2025-02-07 18:22:59,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-07 18:22:59,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [553276880] [2025-02-07 18:22:59,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 18:22:59,316 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 [2025-02-07 18:22:59,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-07 18:22:59,320 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) [2025-02-07 18:22:59,321 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 [2025-02-07 18:22:59,351 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-02-07 18:23:27,488 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-02-07 18:23:27,488 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 18:23:27,488 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 18:23:27,488 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-07 18:23:27,637 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-02-07 18:23:54,883 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-02-07 18:23:54,883 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 18:23:54,883 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 18:23:55,029 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-02-07 18:23:55,030 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-07 18:23:55,031 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-07 18:23:55,136 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 [2025-02-07 18:23:55,233 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 [2025-02-07 18:23:55,235 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-07 18:23:55,272 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 18:23:55,276 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 06:23:55 BoogieIcfgContainer [2025-02-07 18:23:55,276 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 18:23:55,281 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 18:23:55,282 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 18:23:55,282 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 18:23:55,283 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:22:56" (3/4) ... [2025-02-07 18:23:55,283 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-02-07 18:23:55,332 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 17. [2025-02-07 18:23:55,368 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-07 18:23:55,372 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-07 18:23:55,372 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 18:23:55,372 INFO L158 Benchmark]: Toolchain (without parser) took 71360.53ms. Allocated memory is still 83.9MB. Free memory was 59.9MB in the beginning and 40.8MB in the end (delta: 19.2MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. [2025-02-07 18:23:55,372 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory is still 62.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:23:55,372 INFO L158 Benchmark]: CACSL2BoogieTranslator took 155.35ms. Allocated memory is still 83.9MB. Free memory was 59.6MB in the beginning and 48.1MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 18:23:55,373 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.59ms. Allocated memory is still 83.9MB. Free memory was 48.1MB in the beginning and 46.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:23:55,373 INFO L158 Benchmark]: Boogie Preprocessor took 21.36ms. Allocated memory is still 83.9MB. Free memory was 46.8MB in the beginning and 45.1MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 18:23:55,373 INFO L158 Benchmark]: IcfgBuilder took 12158.72ms. Allocated memory is still 83.9MB. Free memory was 45.1MB in the beginning and 34.2MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 18:23:55,373 INFO L158 Benchmark]: TraceAbstraction took 58905.89ms. Allocated memory is still 83.9MB. Free memory was 33.5MB in the beginning and 46.7MB in the end (delta: -13.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:23:55,373 INFO L158 Benchmark]: Witness Printer took 90.34ms. Allocated memory is still 83.9MB. Free memory was 46.7MB in the beginning and 40.8MB in the end (delta: 5.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 18:23:55,374 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory is still 62.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 155.35ms. Allocated memory is still 83.9MB. Free memory was 59.6MB in the beginning and 48.1MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.59ms. Allocated memory is still 83.9MB. Free memory was 48.1MB in the beginning and 46.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.36ms. Allocated memory is still 83.9MB. Free memory was 46.8MB in the beginning and 45.1MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 12158.72ms. Allocated memory is still 83.9MB. Free memory was 45.1MB in the beginning and 34.2MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 58905.89ms. Allocated memory is still 83.9MB. Free memory was 33.5MB in the beginning and 46.7MB in the end (delta: -13.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 90.34ms. Allocated memory is still 83.9MB. Free memory was 46.7MB in the beginning and 40.8MB in the end (delta: 5.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 51]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -2.0f && IN < 2.0f) [L24] COND FALSE !(!cond) [L40] RET assume_abort_if_not(IN > -2.0f && IN < 2.0f) [L42] CALL, EXPR f(IN) VAL [\old(x)=1.197265625] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=1.197265625, \result=0.9324303865432739] [L42] RET, EXPR f(IN) VAL [IN=1.197265625] [L42] CALL, EXPR fp(IN) VAL [\old(x)=1.197265625] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=1.197265625, \result=0.37298351526260376] [L42] RET, EXPR fp(IN) VAL [IN=1.197265625] [L42] float x = IN - f(IN)/fp(IN); [L44] CALL, EXPR f(x) VAL [\old(x)=-1.3026583194732666] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=-1.3026583194732666, \result=-0.9667624831199646] [L44] RET, EXPR f(x) VAL [x=-1.3026583194732666] [L44] CALL, EXPR fp(x) VAL [\old(x)=-1.3026583194732666] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-1.3026583194732666, \result=0.2783077657222748] [L44] RET, EXPR fp(x) VAL [x=-1.3026583194732666] [L44] x = x - f(x)/fp(x) [L46] CALL, EXPR f(x) VAL [\old(x)=2.1710588932037354] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=2.1710588932037354, \result=0.9125765562057495] [L46] RET, EXPR f(x) VAL [x=2.1710588932037354] [L46] CALL, EXPR fp(x) VAL [\old(x)=2.1710588932037354] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=2.1710588932037354, \result=-0.2855933904647827] [L46] RET, EXPR fp(x) VAL [x=2.1710588932037354] [L46] x = x - f(x)/fp(x) [L50] COND TRUE !(x < 0.1) [L51] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 58.8s, OverallIterations: 2, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 27 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 30.5s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 31 SizeOfPredicates, 0 NumberOfNonLiveVariables, 62 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 18/18 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 proved your program to be incorrect! [2025-02-07 18:23:55,459 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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE