./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cdfpl/newton_1_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 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_1_2.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 e45fd403bdea0e38df4202df32820dd99db87a388b8be6e5049c26042da28d7d --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 00:43:06,231 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 00:43:06,304 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 00:43:06,316 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 00:43:06,317 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 00:43:06,340 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 00:43:06,341 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 00:43:06,341 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 00:43:06,342 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 00:43:06,342 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 00:43:06,342 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 00:43:06,342 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 00:43:06,342 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 00:43:06,342 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 00:43:06,343 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 00:43:06,343 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 00:43:06,343 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 00:43:06,343 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 00:43:06,343 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 00:43:06,343 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 00:43:06,343 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 00:43:06,343 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 00:43:06,344 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 00:43:06,344 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 00:43:06,344 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 00:43:06,344 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 00:43:06,344 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 00:43:06,344 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 00:43:06,344 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 00:43:06,345 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 00:43:06,345 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 00:43:06,345 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 00:43:06,345 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 00:43:06,346 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 00:43:06,346 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 00:43:06,346 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 00:43:06,346 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 00:43:06,346 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 00:43:06,346 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 00:43:06,346 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 00:43:06,346 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 00:43:06,346 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 00:43:06,347 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 00:43:06,347 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 00:43:06,347 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 00:43:06,347 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 00:43:06,347 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 00:43:06,347 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 00:43:06,347 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 -> e45fd403bdea0e38df4202df32820dd99db87a388b8be6e5049c26042da28d7d [2025-01-09 00:43:06,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 00:43:06,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 00:43:06,633 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 00:43:06,635 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 00:43:06,635 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 00:43:06,637 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_1_2.i [2025-01-09 00:43:07,917 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/aa81e5032/75335558e835445f8c7e88fe59197f95/FLAG422621b8b [2025-01-09 00:43:08,169 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 00:43:08,170 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_2.i [2025-01-09 00:43:08,193 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/aa81e5032/75335558e835445f8c7e88fe59197f95/FLAG422621b8b [2025-01-09 00:43:08,508 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/aa81e5032/75335558e835445f8c7e88fe59197f95 [2025-01-09 00:43:08,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 00:43:08,511 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 00:43:08,512 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 00:43:08,512 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 00:43:08,516 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 00:43:08,516 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 12:43:08" (1/1) ... [2025-01-09 00:43:08,517 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27682a4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:08, skipping insertion in model container [2025-01-09 00:43:08,517 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 12:43:08" (1/1) ... [2025-01-09 00:43:08,529 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 00:43:08,677 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_1_2.i[1722,1735] [2025-01-09 00:43:08,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 00:43:08,686 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 00:43:08,704 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_1_2.i[1722,1735] [2025-01-09 00:43:08,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 00:43:08,718 INFO L204 MainTranslator]: Completed translation [2025-01-09 00:43:08,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:08 WrapperNode [2025-01-09 00:43:08,720 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 00:43:08,721 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 00:43:08,721 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 00:43:08,721 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 00:43:08,726 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:08" (1/1) ... [2025-01-09 00:43:08,733 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:08" (1/1) ... [2025-01-09 00:43:08,749 INFO L138 Inliner]: procedures = 17, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 30 [2025-01-09 00:43:08,751 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 00:43:08,752 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 00:43:08,752 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 00:43:08,753 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 00:43:08,759 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:08" (1/1) ... [2025-01-09 00:43:08,759 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:08" (1/1) ... [2025-01-09 00:43:08,760 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:08" (1/1) ... [2025-01-09 00:43:08,775 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]. [2025-01-09 00:43:08,775 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:08" (1/1) ... [2025-01-09 00:43:08,775 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:08" (1/1) ... [2025-01-09 00:43:08,779 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:08" (1/1) ... [2025-01-09 00:43:08,783 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:08" (1/1) ... [2025-01-09 00:43:08,785 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:08" (1/1) ... [2025-01-09 00:43:08,785 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:08" (1/1) ... [2025-01-09 00:43:08,786 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:08" (1/1) ... [2025-01-09 00:43:08,788 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 00:43:08,789 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 00:43:08,792 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 00:43:08,793 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 00:43:08,793 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:08" (1/1) ... [2025-01-09 00:43:08,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 00:43:08,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 00:43:08,827 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) [2025-01-09 00:43:08,831 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 [2025-01-09 00:43:08,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 00:43:08,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 00:43:08,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 00:43:08,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 00:43:08,909 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 00:43:08,910 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 00:43:09,012 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2025-01-09 00:43:09,013 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 00:43:09,023 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 00:43:09,024 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 00:43:09,024 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 12:43:09 BoogieIcfgContainer [2025-01-09 00:43:09,024 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 00:43:09,025 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 00:43:09,026 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 00:43:09,030 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 00:43:09,030 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 12:43:08" (1/3) ... [2025-01-09 00:43:09,031 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@224f5d25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 12:43:09, skipping insertion in model container [2025-01-09 00:43:09,031 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:08" (2/3) ... [2025-01-09 00:43:09,032 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@224f5d25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 12:43:09, skipping insertion in model container [2025-01-09 00:43:09,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 12:43:09" (3/3) ... [2025-01-09 00:43:09,033 INFO L128 eAbstractionObserver]: Analyzing ICFG newton_1_2.i [2025-01-09 00:43:09,047 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 00:43:09,049 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG newton_1_2.i that has 1 procedures, 13 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-01-09 00:43:09,096 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 00:43:09,106 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;@4e710f2d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 00:43:09,107 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 00:43:09,111 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 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) [2025-01-09 00:43:09,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-01-09 00:43:09,116 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 00:43:09,116 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 00:43:09,117 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 00:43:09,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 00:43:09,123 INFO L85 PathProgramCache]: Analyzing trace with hash 119351050, now seen corresponding path program 1 times [2025-01-09 00:43:09,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 00:43:09,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825359833] [2025-01-09 00:43:09,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 00:43:09,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 00:43:09,197 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-09 00:43:09,208 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-09 00:43:09,208 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 00:43:09,208 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:43:09,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 00:43:09,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 00:43:09,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825359833] [2025-01-09 00:43:09,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825359833] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 00:43:09,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 00:43:09,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 00:43:09,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900840259] [2025-01-09 00:43:09,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 00:43:09,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 00:43:09,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 00:43:09,264 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 00:43:09,264 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 00:43:09,266 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:43:09,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 00:43:09,275 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2025-01-09 00:43:09,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 00:43:09,277 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-01-09 00:43:09,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 00:43:09,283 INFO L225 Difference]: With dead ends: 23 [2025-01-09 00:43:09,285 INFO L226 Difference]: Without dead ends: 9 [2025-01-09 00:43:09,287 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 [2025-01-09 00:43:09,291 INFO L435 NwaCegarLoop]: 12 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, 12 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 [2025-01-09 00:43:09,293 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 00:43:09,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2025-01-09 00:43:09,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2025-01-09 00:43:09,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:43:09,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2025-01-09 00:43:09,320 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2025-01-09 00:43:09,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 00:43:09,320 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2025-01-09 00:43:09,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:43:09,321 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2025-01-09 00:43:09,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-01-09 00:43:09,321 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 00:43:09,321 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 00:43:09,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 00:43:09,322 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 00:43:09,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 00:43:09,323 INFO L85 PathProgramCache]: Analyzing trace with hash 176609352, now seen corresponding path program 1 times [2025-01-09 00:43:09,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 00:43:09,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412094206] [2025-01-09 00:43:09,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 00:43:09,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 00:43:09,337 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-09 00:43:09,344 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-09 00:43:09,347 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 00:43:09,347 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 00:43:09,347 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 00:43:09,351 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-09 00:43:09,366 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-09 00:43:09,366 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 00:43:09,367 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 00:43:09,387 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 00:43:09,387 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 00:43:09,389 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 00:43:09,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 00:43:09,394 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-01-09 00:43:09,406 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 00:43:09,409 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 12:43:09 BoogieIcfgContainer [2025-01-09 00:43:09,409 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 00:43:09,410 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 00:43:09,410 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 00:43:09,410 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 00:43:09,411 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 12:43:09" (3/4) ... [2025-01-09 00:43:09,413 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-09 00:43:09,414 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 00:43:09,415 INFO L158 Benchmark]: Toolchain (without parser) took 903.50ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 63.7MB in the end (delta: 42.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-01-09 00:43:09,415 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 201.3MB. Free memory is still 115.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 00:43:09,416 INFO L158 Benchmark]: CACSL2BoogieTranslator took 208.11ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 95.2MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 00:43:09,417 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.71ms. Allocated memory is still 142.6MB. Free memory was 95.2MB in the beginning and 94.3MB in the end (delta: 899.8kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 00:43:09,417 INFO L158 Benchmark]: Boogie Preprocessor took 37.03ms. Allocated memory is still 142.6MB. Free memory was 94.3MB in the beginning and 93.4MB in the end (delta: 973.5kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 00:43:09,417 INFO L158 Benchmark]: RCFGBuilder took 234.90ms. Allocated memory is still 142.6MB. Free memory was 92.5MB in the beginning and 83.2MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 00:43:09,418 INFO L158 Benchmark]: TraceAbstraction took 383.91ms. Allocated memory is still 142.6MB. Free memory was 83.2MB in the beginning and 64.6MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 00:43:09,418 INFO L158 Benchmark]: Witness Printer took 4.29ms. Allocated memory is still 142.6MB. Free memory was 64.6MB in the beginning and 63.7MB in the end (delta: 899.8kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 00:43:09,419 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 201.3MB. Free memory is still 115.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 208.11ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 95.2MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.71ms. Allocated memory is still 142.6MB. Free memory was 95.2MB in the beginning and 94.3MB in the end (delta: 899.8kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 37.03ms. Allocated memory is still 142.6MB. Free memory was 94.3MB in the beginning and 93.4MB in the end (delta: 973.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 234.90ms. Allocated memory is still 142.6MB. Free memory was 92.5MB in the beginning and 83.2MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 383.91ms. Allocated memory is still 142.6MB. Free memory was 83.2MB in the beginning and 64.6MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.29ms. Allocated memory is still 142.6MB. Free memory was 64.6MB in the beginning and 63.7MB in the end (delta: 899.8kB). 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 34, overapproximation of someBinaryArithmeticFLOAToperation at line 42, overapproximation of someBinaryArithmeticFLOAToperation at line 29. Possible FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -0.4f && IN < 0.4f) [L24] COND FALSE !(!cond) [L40] RET assume_abort_if_not(IN > -0.4f && IN < 0.4f) [L42] CALL, EXPR f(IN) [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L42] RET, EXPR f(IN) [L42] CALL, EXPR fp(IN) [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L42] RET, EXPR fp(IN) [L42] float x = IN - f(IN)/fp(IN); [L50] COND TRUE !(x < 0.1) [L51] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, 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, 12 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, 12 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=13occurred 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, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2025-01-09 00:43:09,433 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_1_2.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 e45fd403bdea0e38df4202df32820dd99db87a388b8be6e5049c26042da28d7d --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 00:43:11,703 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 00:43:11,807 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-01-09 00:43:11,816 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 00:43:11,817 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 00:43:11,853 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 00:43:11,855 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 00:43:11,855 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 00:43:11,855 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 00:43:11,856 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 00:43:11,856 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 00:43:11,857 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 00:43:11,857 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 00:43:11,857 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 00:43:11,858 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 00:43:11,858 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 00:43:11,858 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 00:43:11,858 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 00:43:11,858 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 00:43:11,858 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 00:43:11,858 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 00:43:11,858 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 00:43:11,858 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 00:43:11,858 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 00:43:11,858 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 00:43:11,859 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 00:43:11,860 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 00:43:11,860 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 00:43:11,860 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 00:43:11,860 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 00:43:11,860 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 00:43:11,860 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 00:43:11,860 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 00:43:11,860 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 00:43:11,861 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 00:43:11,861 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 00:43:11,861 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 00:43:11,862 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 00:43:11,862 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 00:43:11,862 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 00:43:11,862 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 00:43:11,862 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 00:43:11,862 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 00:43:11,862 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 00:43:11,862 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 00:43:11,862 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 00:43:11,862 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 00:43:11,862 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 00:43:11,862 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 00:43:11,862 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 00:43:11,863 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 -> e45fd403bdea0e38df4202df32820dd99db87a388b8be6e5049c26042da28d7d [2025-01-09 00:43:12,175 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 00:43:12,185 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 00:43:12,188 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 00:43:12,189 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 00:43:12,192 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 00:43:12,193 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_1_2.i [2025-01-09 00:43:13,576 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/86867da0b/e06163e7393649f4a77a1d379ae4f881/FLAGd64d2a6cd [2025-01-09 00:43:13,794 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 00:43:13,794 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_2.i [2025-01-09 00:43:13,804 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/86867da0b/e06163e7393649f4a77a1d379ae4f881/FLAGd64d2a6cd [2025-01-09 00:43:13,822 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/86867da0b/e06163e7393649f4a77a1d379ae4f881 [2025-01-09 00:43:13,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 00:43:13,827 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 00:43:13,829 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 00:43:13,829 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 00:43:13,833 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 00:43:13,835 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 12:43:13" (1/1) ... [2025-01-09 00:43:13,838 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@342e503f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:13, skipping insertion in model container [2025-01-09 00:43:13,838 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 12:43:13" (1/1) ... [2025-01-09 00:43:13,853 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 00:43:14,004 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_1_2.i[1722,1735] [2025-01-09 00:43:14,009 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 00:43:14,024 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 00:43:14,047 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_1_2.i[1722,1735] [2025-01-09 00:43:14,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 00:43:14,068 INFO L204 MainTranslator]: Completed translation [2025-01-09 00:43:14,070 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:14 WrapperNode [2025-01-09 00:43:14,070 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 00:43:14,071 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 00:43:14,072 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 00:43:14,072 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 00:43:14,078 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:14" (1/1) ... [2025-01-09 00:43:14,087 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:14" (1/1) ... [2025-01-09 00:43:14,107 INFO L138 Inliner]: procedures = 18, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 31 [2025-01-09 00:43:14,109 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 00:43:14,109 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 00:43:14,110 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 00:43:14,110 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 00:43:14,118 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:14" (1/1) ... [2025-01-09 00:43:14,119 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:14" (1/1) ... [2025-01-09 00:43:14,121 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:14" (1/1) ... [2025-01-09 00:43:14,134 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]. [2025-01-09 00:43:14,138 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:14" (1/1) ... [2025-01-09 00:43:14,138 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:14" (1/1) ... [2025-01-09 00:43:14,144 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:14" (1/1) ... [2025-01-09 00:43:14,148 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:14" (1/1) ... [2025-01-09 00:43:14,150 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:14" (1/1) ... [2025-01-09 00:43:14,151 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:14" (1/1) ... [2025-01-09 00:43:14,152 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:14" (1/1) ... [2025-01-09 00:43:14,157 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 00:43:14,157 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 00:43:14,157 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 00:43:14,157 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 00:43:14,158 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:14" (1/1) ... [2025-01-09 00:43:14,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 00:43:14,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 00:43:14,190 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) [2025-01-09 00:43:14,197 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 [2025-01-09 00:43:14,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 00:43:14,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-09 00:43:14,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 00:43:14,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 00:43:14,284 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 00:43:14,286 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 00:43:24,049 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2025-01-09 00:43:24,050 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 00:43:24,057 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 00:43:24,057 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 00:43:24,058 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 12:43:24 BoogieIcfgContainer [2025-01-09 00:43:24,058 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 00:43:24,060 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 00:43:24,060 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 00:43:24,065 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 00:43:24,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 12:43:13" (1/3) ... [2025-01-09 00:43:24,065 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3702a68d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 12:43:24, skipping insertion in model container [2025-01-09 00:43:24,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:14" (2/3) ... [2025-01-09 00:43:24,066 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3702a68d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 12:43:24, skipping insertion in model container [2025-01-09 00:43:24,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 12:43:24" (3/3) ... [2025-01-09 00:43:24,068 INFO L128 eAbstractionObserver]: Analyzing ICFG newton_1_2.i [2025-01-09 00:43:24,082 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 00:43:24,083 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG newton_1_2.i that has 1 procedures, 13 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-01-09 00:43:24,134 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 00:43:24,145 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;@57001138, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 00:43:24,145 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 00:43:24,149 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 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) [2025-01-09 00:43:24,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-01-09 00:43:24,153 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 00:43:24,153 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 00:43:24,154 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 00:43:24,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 00:43:24,158 INFO L85 PathProgramCache]: Analyzing trace with hash 119351050, now seen corresponding path program 1 times [2025-01-09 00:43:24,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 00:43:24,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1488941527] [2025-01-09 00:43:24,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 00:43:24,165 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 [2025-01-09 00:43:24,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 00:43:24,168 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) [2025-01-09 00:43:24,170 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 [2025-01-09 00:43:24,216 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-09 00:43:25,059 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-09 00:43:25,060 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 00:43:25,060 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:43:25,092 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 00:43:25,095 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 00:43:25,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 00:43:25,107 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 00:43:25,108 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 00:43:25,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1488941527] [2025-01-09 00:43:25,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1488941527] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 00:43:25,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 00:43:25,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 00:43:25,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280740034] [2025-01-09 00:43:25,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 00:43:25,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 00:43:25,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 00:43:25,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 00:43:25,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 00:43:25,130 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:43:25,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 00:43:25,139 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2025-01-09 00:43:25,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 00:43:25,141 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-01-09 00:43:25,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 00:43:25,146 INFO L225 Difference]: With dead ends: 23 [2025-01-09 00:43:25,146 INFO L226 Difference]: Without dead ends: 9 [2025-01-09 00:43:25,148 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 00:43:25,150 INFO L435 NwaCegarLoop]: 12 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, 12 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 [2025-01-09 00:43:25,150 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 00:43:25,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2025-01-09 00:43:25,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2025-01-09 00:43:25,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:43:25,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2025-01-09 00:43:25,171 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2025-01-09 00:43:25,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 00:43:25,172 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2025-01-09 00:43:25,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:43:25,173 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2025-01-09 00:43:25,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-01-09 00:43:25,173 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 00:43:25,173 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 00:43:25,200 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 [2025-01-09 00:43:25,374 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 [2025-01-09 00:43:25,374 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 00:43:25,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 00:43:25,375 INFO L85 PathProgramCache]: Analyzing trace with hash 176609352, now seen corresponding path program 1 times [2025-01-09 00:43:25,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 00:43:25,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [915104178] [2025-01-09 00:43:25,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 00:43:25,376 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 [2025-01-09 00:43:25,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 00:43:25,380 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) [2025-01-09 00:43:25,382 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 [2025-01-09 00:43:25,416 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes.