./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/cos_polynomial.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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/float-benchs/cos_polynomial.c -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 c41c899e123885a0a5b4b47d325ecb3bae7fd8ace0e033e73eafae066c754dcb --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-16 15:52:13,240 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-16 15:52:13,293 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-16 15:52:13,300 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-16 15:52:13,300 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-16 15:52:13,319 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-16 15:52:13,319 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-16 15:52:13,320 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-16 15:52:13,320 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-16 15:52:13,320 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-16 15:52:13,320 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-16 15:52:13,320 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-16 15:52:13,320 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-16 15:52:13,320 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-16 15:52:13,320 INFO L153 SettingsManager]: * Use SBE=true [2025-03-16 15:52:13,320 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-16 15:52:13,320 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-16 15:52:13,320 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-16 15:52:13,320 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-16 15:52:13,320 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-16 15:52:13,321 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-16 15:52:13,321 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-16 15:52:13,321 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-16 15:52:13,321 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-16 15:52:13,321 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-16 15:52:13,321 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-16 15:52:13,321 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-16 15:52:13,321 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-16 15:52:13,321 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-16 15:52:13,321 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-16 15:52:13,321 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-16 15:52:13,321 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-16 15:52:13,321 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 15:52:13,321 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-16 15:52:13,321 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-16 15:52:13,321 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-16 15:52:13,321 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-16 15:52:13,321 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-16 15:52:13,321 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-16 15:52:13,321 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-16 15:52:13,322 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-16 15:52:13,322 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-16 15:52:13,322 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-16 15:52:13,322 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/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 -> c41c899e123885a0a5b4b47d325ecb3bae7fd8ace0e033e73eafae066c754dcb [2025-03-16 15:52:13,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-16 15:52:13,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-16 15:52:13,539 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-16 15:52:13,540 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-16 15:52:13,540 INFO L274 PluginConnector]: CDTParser initialized [2025-03-16 15:52:13,541 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/cos_polynomial.c [2025-03-16 15:52:14,636 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8e08493c/b53b7fe8e13d47d5b201dccaaf799fb9/FLAG5c750606c [2025-03-16 15:52:14,882 INFO L384 CDTParser]: Found 1 translation units. [2025-03-16 15:52:14,882 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cos_polynomial.c [2025-03-16 15:52:14,918 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8e08493c/b53b7fe8e13d47d5b201dccaaf799fb9/FLAG5c750606c [2025-03-16 15:52:15,218 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8e08493c/b53b7fe8e13d47d5b201dccaaf799fb9 [2025-03-16 15:52:15,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-16 15:52:15,220 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-16 15:52:15,221 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-16 15:52:15,221 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-16 15:52:15,224 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-16 15:52:15,225 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 03:52:15" (1/1) ... [2025-03-16 15:52:15,227 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35f16c2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:52:15, skipping insertion in model container [2025-03-16 15:52:15,227 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 03:52:15" (1/1) ... [2025-03-16 15:52:15,240 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-16 15:52:15,326 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/float-benchs/cos_polynomial.c[619,632] [2025-03-16 15:52:15,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 15:52:15,343 INFO L200 MainTranslator]: Completed pre-run [2025-03-16 15:52:15,349 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/float-benchs/cos_polynomial.c[619,632] [2025-03-16 15:52:15,353 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 15:52:15,364 INFO L204 MainTranslator]: Completed translation [2025-03-16 15:52:15,365 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:52:15 WrapperNode [2025-03-16 15:52:15,365 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-16 15:52:15,365 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-16 15:52:15,365 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-16 15:52:15,365 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-16 15:52:15,370 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:52:15" (1/1) ... [2025-03-16 15:52:15,374 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:52:15" (1/1) ... [2025-03-16 15:52:15,385 INFO L138 Inliner]: procedures = 15, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2025-03-16 15:52:15,386 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-16 15:52:15,386 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-16 15:52:15,387 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-16 15:52:15,387 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-16 15:52:15,391 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:52:15" (1/1) ... [2025-03-16 15:52:15,392 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:52:15" (1/1) ... [2025-03-16 15:52:15,397 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:52:15" (1/1) ... [2025-03-16 15:52:15,403 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-16 15:52:15,403 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:52:15" (1/1) ... [2025-03-16 15:52:15,404 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:52:15" (1/1) ... [2025-03-16 15:52:15,406 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:52:15" (1/1) ... [2025-03-16 15:52:15,406 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:52:15" (1/1) ... [2025-03-16 15:52:15,407 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:52:15" (1/1) ... [2025-03-16 15:52:15,407 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:52:15" (1/1) ... [2025-03-16 15:52:15,408 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-16 15:52:15,409 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-16 15:52:15,409 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-16 15:52:15,409 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-16 15:52:15,409 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:52:15" (1/1) ... [2025-03-16 15:52:15,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 15:52:15,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 15:52:15,433 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) [2025-03-16 15:52:15,435 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 [2025-03-16 15:52:15,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-16 15:52:15,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-16 15:52:15,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-16 15:52:15,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-16 15:52:15,493 INFO L256 CfgBuilder]: Building ICFG [2025-03-16 15:52:15,494 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-16 15:52:15,576 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2025-03-16 15:52:15,576 INFO L307 CfgBuilder]: Performing block encoding [2025-03-16 15:52:15,581 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-16 15:52:15,581 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-16 15:52:15,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 03:52:15 BoogieIcfgContainer [2025-03-16 15:52:15,582 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-16 15:52:15,584 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-16 15:52:15,584 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-16 15:52:15,587 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-16 15:52:15,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 03:52:15" (1/3) ... [2025-03-16 15:52:15,588 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bde38d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 03:52:15, skipping insertion in model container [2025-03-16 15:52:15,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:52:15" (2/3) ... [2025-03-16 15:52:15,588 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bde38d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 03:52:15, skipping insertion in model container [2025-03-16 15:52:15,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 03:52:15" (3/3) ... [2025-03-16 15:52:15,589 INFO L128 eAbstractionObserver]: Analyzing ICFG cos_polynomial.c [2025-03-16 15:52:15,599 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-16 15:52:15,600 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG cos_polynomial.c that has 1 procedures, 15 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-16 15:52:15,642 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-16 15:52:15,650 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;@65f36757, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-16 15:52:15,650 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-16 15:52:15,653 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 15:52:15,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-03-16 15:52:15,657 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 15:52:15,657 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 15:52:15,658 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 15:52:15,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 15:52:15,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1112779021, now seen corresponding path program 1 times [2025-03-16 15:52:15,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 15:52:15,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271805235] [2025-03-16 15:52:15,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 15:52:15,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 15:52:15,713 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-16 15:52:15,722 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-16 15:52:15,722 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 15:52:15,722 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 15:52:15,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 15:52:15,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 15:52:15,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271805235] [2025-03-16 15:52:15,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271805235] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 15:52:15,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 15:52:15,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-16 15:52:15,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203821232] [2025-03-16 15:52:15,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 15:52:15,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-16 15:52:15,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 15:52:15,771 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-16 15:52:15,772 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-16 15:52:15,773 INFO L87 Difference]: Start difference. First operand has 15 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2025-03-16 15:52:15,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 15:52:15,781 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2025-03-16 15:52:15,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-16 15:52:15,783 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) Word has length 9 [2025-03-16 15:52:15,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 15:52:15,787 INFO L225 Difference]: With dead ends: 28 [2025-03-16 15:52:15,787 INFO L226 Difference]: Without dead ends: 12 [2025-03-16 15:52:15,789 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-16 15:52:15,794 INFO L435 NwaCegarLoop]: 17 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, 17 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 15:52:15,794 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 15:52:15,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2025-03-16 15:52:15,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2025-03-16 15:52:15,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 15:52:15,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2025-03-16 15:52:15,816 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 9 [2025-03-16 15:52:15,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 15:52:15,817 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2025-03-16 15:52:15,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2025-03-16 15:52:15,818 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2025-03-16 15:52:15,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-03-16 15:52:15,819 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 15:52:15,819 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 15:52:15,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-16 15:52:15,820 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 15:52:15,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 15:52:15,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1439377940, now seen corresponding path program 1 times [2025-03-16 15:52:15,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 15:52:15,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456934148] [2025-03-16 15:52:15,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 15:52:15,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 15:52:15,834 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-16 15:52:15,854 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-16 15:52:15,856 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 15:52:15,856 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-16 15:52:15,856 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-16 15:52:15,859 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-16 15:52:15,875 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-16 15:52:15,875 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 15:52:15,875 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-16 15:52:15,894 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-16 15:52:15,895 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-16 15:52:15,896 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-16 15:52:15,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-16 15:52:15,899 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-16 15:52:15,910 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-16 15:52:15,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 03:52:15 BoogieIcfgContainer [2025-03-16 15:52:15,912 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-16 15:52:15,912 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-16 15:52:15,912 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-16 15:52:15,912 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-16 15:52:15,913 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 03:52:15" (3/4) ... [2025-03-16 15:52:15,914 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-16 15:52:15,915 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-16 15:52:15,915 INFO L158 Benchmark]: Toolchain (without parser) took 695.26ms. Allocated memory is still 167.8MB. Free memory was 122.7MB in the beginning and 77.1MB in the end (delta: 45.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-03-16 15:52:15,916 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 201.3MB. Free memory is still 116.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 15:52:15,916 INFO L158 Benchmark]: CACSL2BoogieTranslator took 143.84ms. Allocated memory is still 167.8MB. Free memory was 122.7MB in the beginning and 111.4MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-16 15:52:15,917 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.50ms. Allocated memory is still 167.8MB. Free memory was 111.4MB in the beginning and 110.6MB in the end (delta: 741.2kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 15:52:15,919 INFO L158 Benchmark]: Boogie Preprocessor took 21.93ms. Allocated memory is still 167.8MB. Free memory was 109.9MB in the beginning and 109.0MB in the end (delta: 926.8kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-16 15:52:15,919 INFO L158 Benchmark]: IcfgBuilder took 173.21ms. Allocated memory is still 167.8MB. Free memory was 109.0MB in the beginning and 97.5MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-16 15:52:15,920 INFO L158 Benchmark]: TraceAbstraction took 328.23ms. Allocated memory is still 167.8MB. Free memory was 96.7MB in the beginning and 77.1MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-16 15:52:15,920 INFO L158 Benchmark]: Witness Printer took 2.51ms. Allocated memory is still 167.8MB. Free memory is still 77.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 15:52:15,921 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 201.3MB. Free memory is still 116.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 143.84ms. Allocated memory is still 167.8MB. Free memory was 122.7MB in the beginning and 111.4MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.50ms. Allocated memory is still 167.8MB. Free memory was 111.4MB in the beginning and 110.6MB in the end (delta: 741.2kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.93ms. Allocated memory is still 167.8MB. Free memory was 109.9MB in the beginning and 109.0MB in the end (delta: 926.8kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 173.21ms. Allocated memory is still 167.8MB. Free memory was 109.0MB in the beginning and 97.5MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 328.23ms. Allocated memory is still 167.8MB. Free memory was 96.7MB in the beginning and 77.1MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 2.51ms. Allocated memory is still 167.8MB. Free memory is still 77.1MB. 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: 14]: 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 someBinaryArithmeticDOUBLEoperation at line 26, overapproximation of someBinaryArithmeticDOUBLEoperation at line 28, overapproximation of someBinaryArithmeticDOUBLEoperation at line 32, overapproximation of someUnaryDOUBLEoperation at line 27, overapproximation of someUnaryDOUBLEoperation at line 17, overapproximation of someBinaryDOUBLEComparisonOperation at line 31, overapproximation of someBinaryDOUBLEComparisonOperation at line 27, overapproximation of someBinaryDOUBLEComparisonOperation at line 56, overapproximation of someBinaryDOUBLEComparisonOperation at line 52. Possible FailurePath: [L16] double C1 = 4.16666666666666019037e-02; [L17] double C2 = -1.38888888888741095749e-03; [L18] double C3 = 2.48015872894767294178e-05; [L19] double C4 = -2.75573143513906633035e-07; [L20] double C5 = 2.08757232129817482790e-09; [L21] double C6 = -1.13596475577881948265e-11; [L49] double a, r; [L51] a = __VERIFIER_nondet_double() [L52] CALL assume_abort_if_not(a >= -0.5 && a <= 0.75) [L12] COND FALSE !(!cond) VAL [C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000] [L52] RET assume_abort_if_not(a >= -0.5 && a <= 0.75) [L54] CALL, EXPR mcos(a) [L25] double a, hz, z, r, qx, zr; [L26] z = x*x VAL [C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000] [L27] COND TRUE x < 0. [L27] x = -x VAL [C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000] [L28] hz = 0.5 * z [L29] r = z*(C1+z*(C2+z*(C3+z*(C4+z*(C5+z*C6))))) [L30] zr = z*r VAL [C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000] [L31] COND TRUE x < 0.3 [L32] return 1.-(hz-zr); VAL [C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000] [L54] RET, EXPR mcos(a) [L54] r = mcos(a) [L56] CALL __VERIFIER_assert(r >= 0. && r <= 1.1) [L14] COND TRUE !(cond) VAL [C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000] [L14] reach_error() VAL [C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 19 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 17 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, 17 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-03-16 15:52:15,936 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/21.0.5-tem/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_1.6.800.v20240513-1750.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/float-benchs/cos_polynomial.c -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 c41c899e123885a0a5b4b47d325ecb3bae7fd8ace0e033e73eafae066c754dcb --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-16 15:52:17,743 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-16 15:52:17,821 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-16 15:52:17,827 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-16 15:52:17,828 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-16 15:52:17,849 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-16 15:52:17,851 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-16 15:52:17,851 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-16 15:52:17,851 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-16 15:52:17,852 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-16 15:52:17,852 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-16 15:52:17,852 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-16 15:52:17,852 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-16 15:52:17,852 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-16 15:52:17,853 INFO L153 SettingsManager]: * Use SBE=true [2025-03-16 15:52:17,853 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-16 15:52:17,853 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-16 15:52:17,853 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-16 15:52:17,853 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-16 15:52:17,854 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-16 15:52:17,854 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-16 15:52:17,854 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-16 15:52:17,854 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-16 15:52:17,854 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-16 15:52:17,854 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-16 15:52:17,854 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-16 15:52:17,854 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-16 15:52:17,854 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-16 15:52:17,854 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-16 15:52:17,854 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-16 15:52:17,855 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-16 15:52:17,855 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-16 15:52:17,855 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-16 15:52:17,855 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-16 15:52:17,855 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 15:52:17,855 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-16 15:52:17,855 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-16 15:52:17,855 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-16 15:52:17,855 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-16 15:52:17,855 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-16 15:52:17,855 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-16 15:52:17,855 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-16 15:52:17,855 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-16 15:52:17,855 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-16 15:52:17,855 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-16 15:52:17,855 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/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 -> c41c899e123885a0a5b4b47d325ecb3bae7fd8ace0e033e73eafae066c754dcb [2025-03-16 15:52:18,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-16 15:52:18,118 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-16 15:52:18,120 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-16 15:52:18,122 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-16 15:52:18,122 INFO L274 PluginConnector]: CDTParser initialized [2025-03-16 15:52:18,124 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/cos_polynomial.c [2025-03-16 15:52:19,289 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/001502f74/2ae537eb203b40378875033aae56467c/FLAG1a6b65cf2 [2025-03-16 15:52:19,474 INFO L384 CDTParser]: Found 1 translation units. [2025-03-16 15:52:19,475 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cos_polynomial.c [2025-03-16 15:52:19,480 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/001502f74/2ae537eb203b40378875033aae56467c/FLAG1a6b65cf2 [2025-03-16 15:52:19,495 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/001502f74/2ae537eb203b40378875033aae56467c [2025-03-16 15:52:19,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-16 15:52:19,499 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-16 15:52:19,502 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-16 15:52:19,502 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-16 15:52:19,505 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-16 15:52:19,506 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 03:52:19" (1/1) ... [2025-03-16 15:52:19,508 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d9e24d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:52:19, skipping insertion in model container [2025-03-16 15:52:19,509 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 03:52:19" (1/1) ... [2025-03-16 15:52:19,520 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-16 15:52:19,631 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/float-benchs/cos_polynomial.c[619,632] [2025-03-16 15:52:19,642 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 15:52:19,653 INFO L200 MainTranslator]: Completed pre-run [2025-03-16 15:52:19,662 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/float-benchs/cos_polynomial.c[619,632] [2025-03-16 15:52:19,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 15:52:19,679 INFO L204 MainTranslator]: Completed translation [2025-03-16 15:52:19,680 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:52:19 WrapperNode [2025-03-16 15:52:19,680 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-16 15:52:19,681 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-16 15:52:19,681 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-16 15:52:19,681 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-16 15:52:19,686 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:52:19" (1/1) ... [2025-03-16 15:52:19,698 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:52:19" (1/1) ... [2025-03-16 15:52:19,718 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2025-03-16 15:52:19,719 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-16 15:52:19,719 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-16 15:52:19,719 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-16 15:52:19,720 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-16 15:52:19,725 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:52:19" (1/1) ... [2025-03-16 15:52:19,727 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:52:19" (1/1) ... [2025-03-16 15:52:19,728 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:52:19" (1/1) ... [2025-03-16 15:52:19,742 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-16 15:52:19,742 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:52:19" (1/1) ... [2025-03-16 15:52:19,745 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:52:19" (1/1) ... [2025-03-16 15:52:19,751 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:52:19" (1/1) ... [2025-03-16 15:52:19,758 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:52:19" (1/1) ... [2025-03-16 15:52:19,759 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:52:19" (1/1) ... [2025-03-16 15:52:19,760 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:52:19" (1/1) ... [2025-03-16 15:52:19,761 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-16 15:52:19,762 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-16 15:52:19,764 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-16 15:52:19,764 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-16 15:52:19,765 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:52:19" (1/1) ... [2025-03-16 15:52:19,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 15:52:19,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 15:52:19,801 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) [2025-03-16 15:52:19,806 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 [2025-03-16 15:52:19,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-16 15:52:19,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-16 15:52:19,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-16 15:52:19,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-16 15:52:19,881 INFO L256 CfgBuilder]: Building ICFG [2025-03-16 15:52:19,883 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-16 15:52:30,382 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2025-03-16 15:52:30,384 INFO L307 CfgBuilder]: Performing block encoding [2025-03-16 15:52:30,391 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-16 15:52:30,392 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-16 15:52:30,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 03:52:30 BoogieIcfgContainer [2025-03-16 15:52:30,392 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-16 15:52:30,394 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-16 15:52:30,394 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-16 15:52:30,397 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-16 15:52:30,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 03:52:19" (1/3) ... [2025-03-16 15:52:30,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f9c514c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 03:52:30, skipping insertion in model container [2025-03-16 15:52:30,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:52:19" (2/3) ... [2025-03-16 15:52:30,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f9c514c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 03:52:30, skipping insertion in model container [2025-03-16 15:52:30,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 03:52:30" (3/3) ... [2025-03-16 15:52:30,399 INFO L128 eAbstractionObserver]: Analyzing ICFG cos_polynomial.c [2025-03-16 15:52:30,410 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-16 15:52:30,412 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG cos_polynomial.c that has 1 procedures, 15 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-16 15:52:30,451 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-16 15:52:30,458 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;@4d38ed79, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-16 15:52:30,458 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-16 15:52:30,462 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 15:52:30,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-03-16 15:52:30,466 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 15:52:30,466 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 15:52:30,466 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 15:52:30,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 15:52:30,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1112779021, now seen corresponding path program 1 times [2025-03-16 15:52:30,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-16 15:52:30,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2095149007] [2025-03-16 15:52:30,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 15:52:30,476 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-16 15:52:30,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-16 15:52:30,480 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) [2025-03-16 15:52:30,481 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 [2025-03-16 15:52:30,517 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-16 15:52:32,080 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-16 15:52:32,081 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 15:52:32,081 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 15:52:32,164 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-16 15:52:32,166 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 15:52:32,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 15:52:32,185 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 15:52:32,186 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-16 15:52:32,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2095149007] [2025-03-16 15:52:32,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2095149007] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 15:52:32,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 15:52:32,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-16 15:52:32,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228126968] [2025-03-16 15:52:32,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 15:52:32,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-16 15:52:32,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-16 15:52:32,204 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-16 15:52:32,204 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-16 15:52:32,206 INFO L87 Difference]: Start difference. First operand has 15 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2025-03-16 15:52:32,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 15:52:32,212 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2025-03-16 15:52:32,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-16 15:52:32,213 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) Word has length 9 [2025-03-16 15:52:32,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 15:52:32,217 INFO L225 Difference]: With dead ends: 28 [2025-03-16 15:52:32,217 INFO L226 Difference]: Without dead ends: 12 [2025-03-16 15:52:32,219 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-16 15:52:32,221 INFO L435 NwaCegarLoop]: 17 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, 17 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 15:52:32,221 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 15:52:32,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2025-03-16 15:52:32,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2025-03-16 15:52:32,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 15:52:32,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2025-03-16 15:52:32,242 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 9 [2025-03-16 15:52:32,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 15:52:32,242 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2025-03-16 15:52:32,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2025-03-16 15:52:32,243 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2025-03-16 15:52:32,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-03-16 15:52:32,244 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 15:52:32,244 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 15:52:32,294 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 [2025-03-16 15:52:32,445 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 [2025-03-16 15:52:32,445 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 15:52:32,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 15:52:32,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1439377940, now seen corresponding path program 1 times [2025-03-16 15:52:32,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-16 15:52:32,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [526028938] [2025-03-16 15:52:32,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 15:52:32,446 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-16 15:52:32,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-16 15:52:32,448 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) [2025-03-16 15:52:32,449 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 [2025-03-16 15:52:32,479 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-16 15:52:56,488 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-16 15:52:56,488 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 15:52:56,488 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 15:52:56,595 WARN L254 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-03-16 15:52:56,598 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 15:53:20,181 WARN L286 SmtUtils]: Spent 9.47s on a formula simplification that was a NOOP. DAG size: 42 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2025-03-16 15:53:42,662 WARN L286 SmtUtils]: Spent 11.37s on a formula simplification that was a NOOP. DAG size: 46 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2025-03-16 15:53:51,889 WARN L286 SmtUtils]: Spent 9.16s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-03-16 15:54:00,978 WARN L286 SmtUtils]: Spent 9.09s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)