./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_3.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 26fa7b1fc8948e323dc46aa278c02b07d6da75b1e07ffd01b89efc9a86bb90ce --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 00:23:14,242 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 00:23:14,333 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 00:23:14,339 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 00:23:14,340 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 00:23:14,371 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 00:23:14,374 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 00:23:14,374 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 00:23:14,375 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 00:23:14,376 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 00:23:14,377 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 00:23:14,377 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 00:23:14,378 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 00:23:14,378 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 00:23:14,380 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 00:23:14,380 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 00:23:14,381 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 00:23:14,381 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 00:23:14,381 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 00:23:14,382 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 00:23:14,382 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 00:23:14,382 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 00:23:14,386 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 00:23:14,386 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 00:23:14,386 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 00:23:14,387 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 00:23:14,387 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 00:23:14,387 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 00:23:14,387 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 00:23:14,388 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 00:23:14,388 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 00:23:14,388 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 00:23:14,388 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 00:23:14,388 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 00:23:14,389 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 00:23:14,389 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 00:23:14,389 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 00:23:14,389 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 00:23:14,390 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 00:23:14,390 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 00:23:14,390 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 00:23:14,391 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 00:23:14,392 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26fa7b1fc8948e323dc46aa278c02b07d6da75b1e07ffd01b89efc9a86bb90ce [2024-10-14 00:23:14,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 00:23:14,707 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 00:23:14,711 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 00:23:14,713 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 00:23:14,713 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 00:23:14,714 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_3.i [2024-10-14 00:23:16,272 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 00:23:16,488 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 00:23:16,489 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_3.i [2024-10-14 00:23:16,500 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/362b5a176/3b35bb22b9e846d2baefd5d87c6ff7f1/FLAGeaf4ca355 [2024-10-14 00:23:16,852 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/362b5a176/3b35bb22b9e846d2baefd5d87c6ff7f1 [2024-10-14 00:23:16,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 00:23:16,857 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 00:23:16,858 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 00:23:16,858 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 00:23:16,863 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 00:23:16,864 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:23:16" (1/1) ... [2024-10-14 00:23:16,866 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58e070ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:16, skipping insertion in model container [2024-10-14 00:23:16,867 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:23:16" (1/1) ... [2024-10-14 00:23:16,889 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 00:23:17,065 WARN L248 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_1_3.i[1722,1735] [2024-10-14 00:23:17,069 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 00:23:17,079 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 00:23:17,096 WARN L248 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_1_3.i[1722,1735] [2024-10-14 00:23:17,097 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 00:23:17,112 INFO L204 MainTranslator]: Completed translation [2024-10-14 00:23:17,113 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:17 WrapperNode [2024-10-14 00:23:17,113 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 00:23:17,115 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 00:23:17,115 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 00:23:17,115 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 00:23:17,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:17" (1/1) ... [2024-10-14 00:23:17,132 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:17" (1/1) ... [2024-10-14 00:23:17,149 INFO L138 Inliner]: procedures = 17, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 30 [2024-10-14 00:23:17,149 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 00:23:17,150 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 00:23:17,150 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 00:23:17,151 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 00:23:17,161 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:17" (1/1) ... [2024-10-14 00:23:17,161 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:17" (1/1) ... [2024-10-14 00:23:17,163 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:17" (1/1) ... [2024-10-14 00:23:17,175 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]. [2024-10-14 00:23:17,175 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:17" (1/1) ... [2024-10-14 00:23:17,175 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:17" (1/1) ... [2024-10-14 00:23:17,179 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:17" (1/1) ... [2024-10-14 00:23:17,181 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:17" (1/1) ... [2024-10-14 00:23:17,182 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:17" (1/1) ... [2024-10-14 00:23:17,183 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:17" (1/1) ... [2024-10-14 00:23:17,185 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 00:23:17,186 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 00:23:17,186 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 00:23:17,186 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 00:23:17,187 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:17" (1/1) ... [2024-10-14 00:23:17,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 00:23:17,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 00:23:17,262 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) [2024-10-14 00:23:17,265 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 [2024-10-14 00:23:17,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 00:23:17,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 00:23:17,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 00:23:17,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 00:23:17,361 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 00:23:17,363 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 00:23:17,458 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-10-14 00:23:17,458 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 00:23:17,491 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 00:23:17,491 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 00:23:17,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:23:17 BoogieIcfgContainer [2024-10-14 00:23:17,492 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 00:23:17,494 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 00:23:17,494 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 00:23:17,498 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 00:23:17,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 12:23:16" (1/3) ... [2024-10-14 00:23:17,499 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31eb8836 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:23:17, skipping insertion in model container [2024-10-14 00:23:17,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:17" (2/3) ... [2024-10-14 00:23:17,500 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31eb8836 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:23:17, skipping insertion in model container [2024-10-14 00:23:17,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:23:17" (3/3) ... [2024-10-14 00:23:17,502 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_1_3.i [2024-10-14 00:23:17,516 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 00:23:17,517 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 00:23:17,570 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 00:23:17,578 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;@40055b3c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 00:23:17,579 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 00:23:17,582 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 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) [2024-10-14 00:23:17,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-14 00:23:17,587 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:23:17,588 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-14 00:23:17,588 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:23:17,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:23:17,593 INFO L85 PathProgramCache]: Analyzing trace with hash 55586675, now seen corresponding path program 1 times [2024-10-14 00:23:17,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:23:17,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665418438] [2024-10-14 00:23:17,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:23:17,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:23:17,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:23:17,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 00:23:17,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:23:17,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665418438] [2024-10-14 00:23:17,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665418438] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:23:17,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:23:17,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 00:23:17,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908707601] [2024-10-14 00:23:17,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:23:17,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 00:23:17,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:23:17,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 00:23:17,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 00:23:17,770 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 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 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2024-10-14 00:23:17,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:23:17,787 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2024-10-14 00:23:17,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 00:23:17,791 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2024-10-14 00:23:17,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:23:17,796 INFO L225 Difference]: With dead ends: 14 [2024-10-14 00:23:17,797 INFO L226 Difference]: Without dead ends: 6 [2024-10-14 00:23:17,799 INFO L431 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 [2024-10-14 00:23:17,802 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 00:23:17,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 00:23:17,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2024-10-14 00:23:17,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2024-10-14 00:23:17,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 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) [2024-10-14 00:23:17,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5 transitions. [2024-10-14 00:23:17,824 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 5 transitions. Word has length 5 [2024-10-14 00:23:17,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:23:17,825 INFO L471 AbstractCegarLoop]: Abstraction has 6 states and 5 transitions. [2024-10-14 00:23:17,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2024-10-14 00:23:17,825 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2024-10-14 00:23:17,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-14 00:23:17,825 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:23:17,825 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-14 00:23:17,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 00:23:17,826 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:23:17,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:23:17,826 INFO L85 PathProgramCache]: Analyzing trace with hash 55646257, now seen corresponding path program 1 times [2024-10-14 00:23:17,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:23:17,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215630270] [2024-10-14 00:23:17,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:23:17,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:23:17,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 00:23:17,846 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 00:23:17,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 00:23:17,875 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-14 00:23:17,875 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 00:23:17,877 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-14 00:23:17,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 00:23:17,881 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-14 00:23:17,892 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 00:23:17,896 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 12:23:17 BoogieIcfgContainer [2024-10-14 00:23:17,896 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 00:23:17,897 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 00:23:17,897 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 00:23:17,897 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 00:23:17,897 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:23:17" (3/4) ... [2024-10-14 00:23:17,901 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-14 00:23:17,902 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 00:23:17,902 INFO L158 Benchmark]: Toolchain (without parser) took 1045.71ms. Allocated memory is still 172.0MB. Free memory was 102.3MB in the beginning and 109.5MB in the end (delta: -7.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 00:23:17,903 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 113.2MB. Free memory is still 75.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 00:23:17,903 INFO L158 Benchmark]: CACSL2BoogieTranslator took 256.08ms. Allocated memory is still 172.0MB. Free memory was 102.1MB in the beginning and 90.5MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-14 00:23:17,905 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.97ms. Allocated memory is still 172.0MB. Free memory was 90.5MB in the beginning and 89.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 00:23:17,905 INFO L158 Benchmark]: Boogie Preprocessor took 34.56ms. Allocated memory is still 172.0MB. Free memory was 89.0MB in the beginning and 87.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 00:23:17,906 INFO L158 Benchmark]: RCFGBuilder took 306.19ms. Allocated memory is still 172.0MB. Free memory was 87.1MB in the beginning and 133.2MB in the end (delta: -46.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-14 00:23:17,906 INFO L158 Benchmark]: TraceAbstraction took 401.68ms. Allocated memory is still 172.0MB. Free memory was 132.6MB in the beginning and 109.5MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-14 00:23:17,906 INFO L158 Benchmark]: Witness Printer took 5.27ms. Allocated memory is still 172.0MB. Free memory is still 109.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 00:23:17,909 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 113.2MB. Free memory is still 75.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 256.08ms. Allocated memory is still 172.0MB. Free memory was 102.1MB in the beginning and 90.5MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.97ms. Allocated memory is still 172.0MB. Free memory was 90.5MB in the beginning and 89.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.56ms. Allocated memory is still 172.0MB. Free memory was 89.0MB in the beginning and 87.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 306.19ms. Allocated memory is still 172.0MB. Free memory was 87.1MB in the beginning and 133.2MB in the end (delta: -46.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 401.68ms. Allocated memory is still 172.0MB. Free memory was 132.6MB in the beginning and 109.5MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 5.27ms. Allocated memory is still 172.0MB. Free memory is still 109.5MB. 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 29. Possible FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -0.6f && IN < 0.6f) [L24] COND FALSE !(!cond) [L40] RET assume_abort_if_not(IN > -0.6f && IN < 0.6f) [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, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, 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, 4 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 4 mSDtfsCounter, 3 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=8occurred 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, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 4 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-14 00:23:17,935 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/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_3.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 26fa7b1fc8948e323dc46aa278c02b07d6da75b1e07ffd01b89efc9a86bb90ce --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 00:23:20,220 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 00:23:20,310 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-14 00:23:20,318 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 00:23:20,319 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 00:23:20,354 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 00:23:20,355 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 00:23:20,356 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 00:23:20,357 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 00:23:20,357 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 00:23:20,358 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 00:23:20,358 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 00:23:20,359 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 00:23:20,359 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 00:23:20,359 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 00:23:20,360 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 00:23:20,360 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 00:23:20,362 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 00:23:20,363 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 00:23:20,363 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 00:23:20,363 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 00:23:20,364 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 00:23:20,364 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 00:23:20,365 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-14 00:23:20,365 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-14 00:23:20,365 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 00:23:20,366 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-14 00:23:20,366 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 00:23:20,366 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 00:23:20,367 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 00:23:20,367 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 00:23:20,367 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 00:23:20,368 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 00:23:20,368 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 00:23:20,368 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 00:23:20,368 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 00:23:20,369 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 00:23:20,369 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 00:23:20,369 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-14 00:23:20,369 INFO L153 SettingsManager]: * Command for external solver=cvc5 --incremental --print-success --lang smt [2024-10-14 00:23:20,369 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 00:23:20,371 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 00:23:20,371 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 00:23:20,371 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 00:23:20,372 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-14 00:23:20,372 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26fa7b1fc8948e323dc46aa278c02b07d6da75b1e07ffd01b89efc9a86bb90ce [2024-10-14 00:23:20,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 00:23:20,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 00:23:20,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 00:23:20,753 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 00:23:20,755 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 00:23:20,757 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_3.i [2024-10-14 00:23:22,307 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 00:23:22,523 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 00:23:22,523 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_3.i [2024-10-14 00:23:22,537 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/116dd9ad7/293be23a834b4815b2cffed0c4b46631/FLAG8b0deced4 [2024-10-14 00:23:22,555 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/116dd9ad7/293be23a834b4815b2cffed0c4b46631 [2024-10-14 00:23:22,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 00:23:22,560 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 00:23:22,561 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 00:23:22,562 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 00:23:22,568 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 00:23:22,569 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:23:22" (1/1) ... [2024-10-14 00:23:22,570 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29d8d0e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:22, skipping insertion in model container [2024-10-14 00:23:22,570 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:23:22" (1/1) ... [2024-10-14 00:23:22,593 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 00:23:22,782 WARN L248 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_1_3.i[1722,1735] [2024-10-14 00:23:22,790 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 00:23:22,812 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 00:23:22,833 WARN L248 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_1_3.i[1722,1735] [2024-10-14 00:23:22,834 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 00:23:22,860 INFO L204 MainTranslator]: Completed translation [2024-10-14 00:23:22,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:22 WrapperNode [2024-10-14 00:23:22,861 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 00:23:22,861 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 00:23:22,862 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 00:23:22,862 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 00:23:22,870 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:22" (1/1) ... [2024-10-14 00:23:22,880 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:22" (1/1) ... [2024-10-14 00:23:22,904 INFO L138 Inliner]: procedures = 18, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 31 [2024-10-14 00:23:22,905 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 00:23:22,906 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 00:23:22,907 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 00:23:22,907 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 00:23:22,917 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:22" (1/1) ... [2024-10-14 00:23:22,917 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:22" (1/1) ... [2024-10-14 00:23:22,920 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:22" (1/1) ... [2024-10-14 00:23:22,937 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]. [2024-10-14 00:23:22,938 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:22" (1/1) ... [2024-10-14 00:23:22,938 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:22" (1/1) ... [2024-10-14 00:23:22,958 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:22" (1/1) ... [2024-10-14 00:23:22,967 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:22" (1/1) ... [2024-10-14 00:23:22,968 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:22" (1/1) ... [2024-10-14 00:23:22,970 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:22" (1/1) ... [2024-10-14 00:23:22,976 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 00:23:22,977 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 00:23:22,977 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 00:23:22,977 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 00:23:22,978 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:22" (1/1) ... [2024-10-14 00:23:22,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 00:23:22,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 00:23:23,014 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) [2024-10-14 00:23:23,021 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 [2024-10-14 00:23:23,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 00:23:23,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-14 00:23:23,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 00:23:23,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 00:23:23,136 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 00:23:23,138 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 00:23:35,124 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-10-14 00:23:35,124 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 00:23:35,164 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 00:23:35,164 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 00:23:35,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:23:35 BoogieIcfgContainer [2024-10-14 00:23:35,165 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 00:23:35,171 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 00:23:35,171 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 00:23:35,174 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 00:23:35,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 12:23:22" (1/3) ... [2024-10-14 00:23:35,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28c07817 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:23:35, skipping insertion in model container [2024-10-14 00:23:35,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:23:22" (2/3) ... [2024-10-14 00:23:35,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28c07817 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:23:35, skipping insertion in model container [2024-10-14 00:23:35,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:23:35" (3/3) ... [2024-10-14 00:23:35,177 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_1_3.i [2024-10-14 00:23:35,193 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 00:23:35,194 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 00:23:35,271 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 00:23:35,280 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;@756a12fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 00:23:35,281 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 00:23:35,286 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 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) [2024-10-14 00:23:35,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-14 00:23:35,292 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:23:35,292 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-14 00:23:35,293 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:23:35,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:23:35,301 INFO L85 PathProgramCache]: Analyzing trace with hash 55586675, now seen corresponding path program 1 times [2024-10-14 00:23:35,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 00:23:35,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1026107668] [2024-10-14 00:23:35,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:23:35,315 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 [2024-10-14 00:23:35,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 00:23:35,321 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) [2024-10-14 00:23:35,322 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 [2024-10-14 00:23:36,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:23:36,066 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-14 00:23:36,070 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 00:23:36,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 00:23:36,086 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 00:23:36,087 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 00:23:36,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1026107668] [2024-10-14 00:23:36,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1026107668] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:23:36,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:23:36,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 00:23:36,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961000774] [2024-10-14 00:23:36,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:23:36,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 00:23:36,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 00:23:36,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 00:23:36,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 00:23:36,144 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 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 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2024-10-14 00:23:41,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.83s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-14 00:23:41,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:23:41,249 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2024-10-14 00:23:41,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 00:23:41,255 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2024-10-14 00:23:41,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:23:41,262 INFO L225 Difference]: With dead ends: 14 [2024-10-14 00:23:41,262 INFO L226 Difference]: Without dead ends: 6 [2024-10-14 00:23:41,265 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 00:23:41,271 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-10-14 00:23:41,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2024-10-14 00:23:41,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2024-10-14 00:23:41,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2024-10-14 00:23:41,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 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) [2024-10-14 00:23:41,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5 transitions. [2024-10-14 00:23:41,298 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 5 transitions. Word has length 5 [2024-10-14 00:23:41,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:23:41,298 INFO L471 AbstractCegarLoop]: Abstraction has 6 states and 5 transitions. [2024-10-14 00:23:41,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2024-10-14 00:23:41,299 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2024-10-14 00:23:41,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-14 00:23:41,299 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:23:41,299 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-14 00:23:41,320 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 [2024-10-14 00:23:41,500 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 [2024-10-14 00:23:41,501 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:23:41,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:23:41,502 INFO L85 PathProgramCache]: Analyzing trace with hash 55646257, now seen corresponding path program 1 times [2024-10-14 00:23:41,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 00:23:41,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [543284735] [2024-10-14 00:23:41,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:23:41,503 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 [2024-10-14 00:23:41,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 00:23:41,504 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) [2024-10-14 00:23:41,507 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