./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cdfpl/newton_3_5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cdfpl/newton_3_5.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aff730f31ff7b239408d0cd565f5a07c7b3c4734d0135b4cb53a3d08d1899542 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 04:47:14,134 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 04:47:14,207 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 04:47:14,212 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 04:47:14,214 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 04:47:14,248 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 04:47:14,248 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 04:47:14,249 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 04:47:14,250 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 04:47:14,250 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 04:47:14,251 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 04:47:14,251 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 04:47:14,252 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 04:47:14,253 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 04:47:14,254 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 04:47:14,254 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 04:47:14,254 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 04:47:14,255 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 04:47:14,255 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 04:47:14,255 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 04:47:14,255 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 04:47:14,259 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 04:47:14,260 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 04:47:14,260 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 04:47:14,260 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 04:47:14,260 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 04:47:14,260 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 04:47:14,260 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 04:47:14,261 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 04:47:14,261 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 04:47:14,261 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 04:47:14,261 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 04:47:14,261 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:47:14,262 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 04:47:14,262 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 04:47:14,262 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 04:47:14,262 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 04:47:14,262 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 04:47:14,263 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 04:47:14,263 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 04:47:14,265 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 04:47:14,265 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 04:47:14,266 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aff730f31ff7b239408d0cd565f5a07c7b3c4734d0135b4cb53a3d08d1899542 [2024-11-16 04:47:14,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 04:47:14,573 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 04:47:14,575 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 04:47:14,576 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 04:47:14,577 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 04:47:14,579 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_3_5.i [2024-11-16 04:47:15,937 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 04:47:16,160 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 04:47:16,161 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_3_5.i [2024-11-16 04:47:16,183 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a7db297a/b3fe58ddf7604f2c8790c50e37f8b8ec/FLAG83591e64e [2024-11-16 04:47:16,509 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a7db297a/b3fe58ddf7604f2c8790c50e37f8b8ec [2024-11-16 04:47:16,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 04:47:16,513 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 04:47:16,514 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 04:47:16,514 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 04:47:16,520 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 04:47:16,520 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:47:16" (1/1) ... [2024-11-16 04:47:16,521 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bb2054e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:47:16, skipping insertion in model container [2024-11-16 04:47:16,521 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:47:16" (1/1) ... [2024-11-16 04:47:16,542 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 04:47:16,744 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_3_5.i[1764,1777] [2024-11-16 04:47:16,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:47:16,757 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 04:47:16,771 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_3_5.i[1764,1777] [2024-11-16 04:47:16,771 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:47:16,787 INFO L204 MainTranslator]: Completed translation [2024-11-16 04:47:16,788 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:47:16 WrapperNode [2024-11-16 04:47:16,788 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 04:47:16,789 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 04:47:16,789 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 04:47:16,789 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 04:47:16,796 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:47:16" (1/1) ... [2024-11-16 04:47:16,802 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:47:16" (1/1) ... [2024-11-16 04:47:16,816 INFO L138 Inliner]: procedures = 17, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2024-11-16 04:47:16,816 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 04:47:16,817 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 04:47:16,817 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 04:47:16,817 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 04:47:16,828 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:47:16" (1/1) ... [2024-11-16 04:47:16,828 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:47:16" (1/1) ... [2024-11-16 04:47:16,830 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:47:16" (1/1) ... [2024-11-16 04:47:16,842 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]. [2024-11-16 04:47:16,842 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:47:16" (1/1) ... [2024-11-16 04:47:16,843 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:47:16" (1/1) ... [2024-11-16 04:47:16,846 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:47:16" (1/1) ... [2024-11-16 04:47:16,847 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:47:16" (1/1) ... [2024-11-16 04:47:16,848 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:47:16" (1/1) ... [2024-11-16 04:47:16,849 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:47:16" (1/1) ... [2024-11-16 04:47:16,850 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 04:47:16,851 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 04:47:16,851 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 04:47:16,851 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 04:47:16,852 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:47:16" (1/1) ... [2024-11-16 04:47:16,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:47:16,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:47:16,889 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 04:47:16,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 04:47:16,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 04:47:16,934 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-16 04:47:16,934 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-16 04:47:16,934 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-11-16 04:47:16,934 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-11-16 04:47:16,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 04:47:16,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 04:47:16,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 04:47:16,997 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 04:47:16,999 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 04:47:17,144 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-16 04:47:17,145 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 04:47:17,166 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 04:47:17,166 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 04:47:17,167 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:47:17 BoogieIcfgContainer [2024-11-16 04:47:17,167 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 04:47:17,171 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 04:47:17,171 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 04:47:17,175 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 04:47:17,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:47:16" (1/3) ... [2024-11-16 04:47:17,177 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28e888d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:47:17, skipping insertion in model container [2024-11-16 04:47:17,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:47:16" (2/3) ... [2024-11-16 04:47:17,179 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28e888d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:47:17, skipping insertion in model container [2024-11-16 04:47:17,179 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:47:17" (3/3) ... [2024-11-16 04:47:17,180 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_3_5.i [2024-11-16 04:47:17,202 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 04:47:17,203 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 04:47:17,253 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 04:47:17,260 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;@20e0b408, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 04:47:17,260 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 04:47:17,265 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 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) [2024-11-16 04:47:17,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-16 04:47:17,274 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:47:17,275 INFO L215 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, 1] [2024-11-16 04:47:17,275 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:47:17,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:47:17,282 INFO L85 PathProgramCache]: Analyzing trace with hash 560619692, now seen corresponding path program 1 times [2024-11-16 04:47:17,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:47:17,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005810321] [2024-11-16 04:47:17,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:47:17,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:47:17,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:47:17,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 04:47:17,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:47:17,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 04:47:17,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:47:17,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 04:47:17,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:47:17,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 04:47:17,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:47:17,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 04:47:17,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:47:17,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-16 04:47:17,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:47:17,528 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-16 04:47:17,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:47:17,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005810321] [2024-11-16 04:47:17,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005810321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:47:17,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:47:17,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:47:17,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027959762] [2024-11-16 04:47:17,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:47:17,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 04:47:17,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:47:17,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 04:47:17,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 04:47:17,572 INFO L87 Difference]: Start difference. First operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 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 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2024-11-16 04:47:17,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:47:17,593 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2024-11-16 04:47:17,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 04:47:17,595 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 33 [2024-11-16 04:47:17,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:47:17,603 INFO L225 Difference]: With dead ends: 49 [2024-11-16 04:47:17,603 INFO L226 Difference]: Without dead ends: 22 [2024-11-16 04:47:17,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 04:47:17,611 INFO L432 NwaCegarLoop]: 29 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, 29 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 [2024-11-16 04:47:17,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 04:47:17,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-11-16 04:47:17,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-11-16 04:47:17,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.0) internal successors, (13), 13 states have internal predecessors, (13), 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) [2024-11-16 04:47:17,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2024-11-16 04:47:17,656 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 33 [2024-11-16 04:47:17,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:47:17,658 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2024-11-16 04:47:17,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2024-11-16 04:47:17,659 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2024-11-16 04:47:17,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-16 04:47:17,661 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:47:17,661 INFO L215 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, 1] [2024-11-16 04:47:17,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 04:47:17,662 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:47:17,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:47:17,663 INFO L85 PathProgramCache]: Analyzing trace with hash 911419629, now seen corresponding path program 1 times [2024-11-16 04:47:17,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:47:17,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56530481] [2024-11-16 04:47:17,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:47:17,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:47:17,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 04:47:17,691 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 04:47:17,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 04:47:17,732 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 04:47:17,733 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 04:47:17,735 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 04:47:17,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 04:47:17,741 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-16 04:47:17,761 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 04:47:17,765 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 04:47:17 BoogieIcfgContainer [2024-11-16 04:47:17,765 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 04:47:17,766 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 04:47:17,766 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 04:47:17,767 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 04:47:17,767 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:47:17" (3/4) ... [2024-11-16 04:47:17,770 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-16 04:47:17,771 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 04:47:17,771 INFO L158 Benchmark]: Toolchain (without parser) took 1258.12ms. Allocated memory is still 169.9MB. Free memory was 139.1MB in the beginning and 82.4MB in the end (delta: 56.7MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2024-11-16 04:47:17,772 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 169.9MB. Free memory is still 142.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 04:47:17,772 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.19ms. Allocated memory is still 169.9MB. Free memory was 139.1MB in the beginning and 126.4MB in the end (delta: 12.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-16 04:47:17,772 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.10ms. Allocated memory is still 169.9MB. Free memory was 126.4MB in the beginning and 124.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 04:47:17,773 INFO L158 Benchmark]: Boogie Preprocessor took 33.65ms. Allocated memory is still 169.9MB. Free memory was 124.5MB in the beginning and 123.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 04:47:17,773 INFO L158 Benchmark]: IcfgBuilder took 316.41ms. Allocated memory is still 169.9MB. Free memory was 123.1MB in the beginning and 111.1MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-16 04:47:17,774 INFO L158 Benchmark]: TraceAbstraction took 594.25ms. Allocated memory is still 169.9MB. Free memory was 110.5MB in the beginning and 82.6MB in the end (delta: 27.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-16 04:47:17,774 INFO L158 Benchmark]: Witness Printer took 4.47ms. Allocated memory is still 169.9MB. Free memory was 82.6MB in the beginning and 82.4MB in the end (delta: 208.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 04:47:17,777 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 169.9MB. Free memory is still 142.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.19ms. Allocated memory is still 169.9MB. Free memory was 139.1MB in the beginning and 126.4MB in the end (delta: 12.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.10ms. Allocated memory is still 169.9MB. Free memory was 126.4MB in the beginning and 124.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.65ms. Allocated memory is still 169.9MB. Free memory was 124.5MB in the beginning and 123.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 316.41ms. Allocated memory is still 169.9MB. Free memory was 123.1MB in the beginning and 111.1MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 594.25ms. Allocated memory is still 169.9MB. Free memory was 110.5MB in the beginning and 82.6MB in the end (delta: 27.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 4.47ms. Allocated memory is still 169.9MB. Free memory was 82.6MB in the beginning and 82.4MB in the end (delta: 208.5kB). 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 46. Possible FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L24] COND FALSE !(!cond) [L40] RET assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L42] CALL, EXPR f(IN) 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] [L42] RET, EXPR f(IN) VAL [IN=53] [L42] CALL, EXPR fp(IN) 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] [L42] RET, EXPR fp(IN) VAL [IN=53] [L42] float x = IN - f(IN)/fp(IN); [L44] 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] [L44] RET, EXPR f(x) VAL [IN=53, x=55] [L44] 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] [L44] RET, EXPR fp(x) VAL [IN=53, x=55] [L44] x = x - f(x)/fp(x) [L46] CALL, EXPR f(x) 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] [L46] RET, EXPR f(x) VAL [IN=53, x=54] [L46] CALL, EXPR fp(x) 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] [L46] RET, EXPR fp(x) VAL [IN=53, x=54] [L46] x = x - f(x)/fp(x) [L50] COND TRUE !(x < 0.1) VAL [IN=53] [L51] reach_error() VAL [IN=53] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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, 29 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, 29 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 0.1s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-16 04:47:17,807 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cdfpl/newton_3_5.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aff730f31ff7b239408d0cd565f5a07c7b3c4734d0135b4cb53a3d08d1899542 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 04:47:20,120 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 04:47:20,196 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-16 04:47:20,203 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 04:47:20,203 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 04:47:20,232 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 04:47:20,233 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 04:47:20,233 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 04:47:20,234 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 04:47:20,238 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 04:47:20,238 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 04:47:20,238 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 04:47:20,239 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 04:47:20,239 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 04:47:20,239 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 04:47:20,240 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 04:47:20,240 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 04:47:20,240 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 04:47:20,240 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 04:47:20,241 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 04:47:20,241 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 04:47:20,243 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 04:47:20,252 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 04:47:20,253 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-16 04:47:20,254 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-16 04:47:20,254 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 04:47:20,254 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-16 04:47:20,254 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 04:47:20,255 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 04:47:20,255 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 04:47:20,256 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 04:47:20,256 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 04:47:20,257 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 04:47:20,257 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 04:47:20,258 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:47:20,258 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 04:47:20,258 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 04:47:20,258 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 04:47:20,259 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-16 04:47:20,259 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-16 04:47:20,259 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 04:47:20,260 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 04:47:20,260 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 04:47:20,260 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 04:47:20,260 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aff730f31ff7b239408d0cd565f5a07c7b3c4734d0135b4cb53a3d08d1899542 [2024-11-16 04:47:20,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 04:47:20,594 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 04:47:20,598 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 04:47:20,599 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 04:47:20,600 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 04:47:20,607 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_3_5.i [2024-11-16 04:47:22,057 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 04:47:22,294 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 04:47:22,295 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_3_5.i [2024-11-16 04:47:22,305 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1e6b5b30/c07df25563d841a28bb6d74dc65f8c6c/FLAG84ad82fb0 [2024-11-16 04:47:22,326 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1e6b5b30/c07df25563d841a28bb6d74dc65f8c6c [2024-11-16 04:47:22,329 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 04:47:22,331 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 04:47:22,334 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 04:47:22,334 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 04:47:22,340 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 04:47:22,343 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:47:22" (1/1) ... [2024-11-16 04:47:22,344 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fb35ef4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:47:22, skipping insertion in model container [2024-11-16 04:47:22,344 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:47:22" (1/1) ... [2024-11-16 04:47:22,368 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 04:47:22,584 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_3_5.i[1764,1777] [2024-11-16 04:47:22,588 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:47:22,604 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 04:47:22,629 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_3_5.i[1764,1777] [2024-11-16 04:47:22,629 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:47:22,650 INFO L204 MainTranslator]: Completed translation [2024-11-16 04:47:22,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:47:22 WrapperNode [2024-11-16 04:47:22,651 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 04:47:22,652 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 04:47:22,652 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 04:47:22,652 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 04:47:22,659 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:47:22" (1/1) ... [2024-11-16 04:47:22,674 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:47:22" (1/1) ... [2024-11-16 04:47:22,694 INFO L138 Inliner]: procedures = 18, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2024-11-16 04:47:22,695 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 04:47:22,696 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 04:47:22,697 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 04:47:22,697 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 04:47:22,706 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:47:22" (1/1) ... [2024-11-16 04:47:22,707 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:47:22" (1/1) ... [2024-11-16 04:47:22,711 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:47:22" (1/1) ... [2024-11-16 04:47:22,726 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]. [2024-11-16 04:47:22,727 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:47:22" (1/1) ... [2024-11-16 04:47:22,727 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:47:22" (1/1) ... [2024-11-16 04:47:22,738 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:47:22" (1/1) ... [2024-11-16 04:47:22,739 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:47:22" (1/1) ... [2024-11-16 04:47:22,740 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:47:22" (1/1) ... [2024-11-16 04:47:22,742 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:47:22" (1/1) ... [2024-11-16 04:47:22,748 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 04:47:22,749 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 04:47:22,749 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 04:47:22,749 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 04:47:22,750 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:47:22" (1/1) ... [2024-11-16 04:47:22,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:47:22,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:47:22,789 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 04:47:22,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 04:47:22,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 04:47:22,836 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-16 04:47:22,836 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-16 04:47:22,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-16 04:47:22,837 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-11-16 04:47:22,837 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-11-16 04:47:22,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 04:47:22,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 04:47:22,918 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 04:47:22,920 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 04:47:36,534 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-16 04:47:36,535 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 04:47:36,557 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 04:47:36,558 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 04:47:36,558 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:47:36 BoogieIcfgContainer [2024-11-16 04:47:36,558 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 04:47:36,561 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 04:47:36,561 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 04:47:36,566 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 04:47:36,567 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:47:22" (1/3) ... [2024-11-16 04:47:36,567 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b28ca3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:47:36, skipping insertion in model container [2024-11-16 04:47:36,568 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:47:22" (2/3) ... [2024-11-16 04:47:36,568 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b28ca3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:47:36, skipping insertion in model container [2024-11-16 04:47:36,569 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:47:36" (3/3) ... [2024-11-16 04:47:36,571 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_3_5.i [2024-11-16 04:47:36,588 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 04:47:36,589 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 04:47:36,663 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 04:47:36,670 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;@2cb6bb83, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 04:47:36,670 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 04:47:36,675 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 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) [2024-11-16 04:47:36,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-16 04:47:36,683 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:47:36,684 INFO L215 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, 1] [2024-11-16 04:47:36,685 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:47:36,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:47:36,691 INFO L85 PathProgramCache]: Analyzing trace with hash 560619692, now seen corresponding path program 1 times [2024-11-16 04:47:36,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-16 04:47:36,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [894610758] [2024-11-16 04:47:36,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:47:36,706 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 [2024-11-16 04:47:36,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-16 04:47:36,710 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-16 04:47:36,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-16 04:47:39,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:47:39,366 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-16 04:47:39,373 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:47:39,403 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-16 04:47:39,403 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:47:39,404 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-16 04:47:39,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [894610758] [2024-11-16 04:47:39,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [894610758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:47:39,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:47:39,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:47:39,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310481113] [2024-11-16 04:47:39,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:47:39,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 04:47:39,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-16 04:47:39,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 04:47:39,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 04:47:39,442 INFO L87 Difference]: Start difference. First operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 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 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2024-11-16 04:47:39,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:47:39,462 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2024-11-16 04:47:39,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 04:47:39,465 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 33 [2024-11-16 04:47:39,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:47:39,471 INFO L225 Difference]: With dead ends: 49 [2024-11-16 04:47:39,472 INFO L226 Difference]: Without dead ends: 22 [2024-11-16 04:47:39,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 04:47:39,479 INFO L432 NwaCegarLoop]: 29 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, 29 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 [2024-11-16 04:47:39,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 04:47:39,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-11-16 04:47:39,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-11-16 04:47:39,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.0) internal successors, (13), 13 states have internal predecessors, (13), 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) [2024-11-16 04:47:39,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2024-11-16 04:47:39,528 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 33 [2024-11-16 04:47:39,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:47:39,528 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2024-11-16 04:47:39,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2024-11-16 04:47:39,529 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2024-11-16 04:47:39,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-16 04:47:39,531 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:47:39,532 INFO L215 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, 1] [2024-11-16 04:47:39,632 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-16 04:47:39,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-16 04:47:39,734 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:47:39,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:47:39,735 INFO L85 PathProgramCache]: Analyzing trace with hash 911419629, now seen corresponding path program 1 times [2024-11-16 04:47:39,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-16 04:47:39,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1990767337] [2024-11-16 04:47:39,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:47:39,737 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 [2024-11-16 04:47:39,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-16 04:47:39,740 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-16 04:47:39,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process