./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/loop-floats-scientific-comp/loop5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version da043454 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 ../../../trunk/examples/svcomp/loop-floats-scientific-comp/loop5.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 0f1ff2bca9ae4e97512dcdbf6ed3fbe00e1dc2e354eaf008ff87dcc98fa62e49 --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-29 10:58:01,585 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-29 10:58:01,631 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-04-29 10:58:01,637 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-29 10:58:01,638 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-29 10:58:01,663 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-29 10:58:01,664 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-29 10:58:01,664 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-29 10:58:01,664 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-29 10:58:01,664 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-29 10:58:01,664 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-29 10:58:01,664 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-29 10:58:01,664 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-29 10:58:01,664 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-29 10:58:01,665 INFO L153 SettingsManager]: * Use SBE=true [2025-04-29 10:58:01,666 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-29 10:58:01,666 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-29 10:58:01,666 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-29 10:58:01,667 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-29 10:58:01,667 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-29 10:58:01,667 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-29 10:58:01,667 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-29 10:58:01,667 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-29 10:58:01,667 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-29 10:58:01,667 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-29 10:58:01,667 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-29 10:58:01,667 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-29 10:58:01,667 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-29 10:58:01,667 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-29 10:58:01,667 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 10:58:01,667 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-29 10:58:01,668 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 10:58:01,668 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 10:58:01,668 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-29 10:58:01,668 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 10:58:01,668 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-29 10:58:01,668 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 10:58:01,668 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 10:58:01,668 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-29 10:58:01,668 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-29 10:58:01,668 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-29 10:58:01,668 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-29 10:58:01,668 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-29 10:58:01,668 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-29 10:58:01,668 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-29 10:58:01,668 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-29 10:58:01,668 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-29 10:58:01,668 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 -> 0f1ff2bca9ae4e97512dcdbf6ed3fbe00e1dc2e354eaf008ff87dcc98fa62e49 [2025-04-29 10:58:01,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-29 10:58:01,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-29 10:58:01,885 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-29 10:58:01,886 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-29 10:58:01,886 INFO L274 PluginConnector]: CDTParser initialized [2025-04-29 10:58:01,887 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-floats-scientific-comp/loop5.c [2025-04-29 10:58:03,167 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/631a1252e/c61c11b0233441cca28612b97f11b828/FLAG34d58307a [2025-04-29 10:58:03,341 INFO L389 CDTParser]: Found 1 translation units. [2025-04-29 10:58:03,341 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-floats-scientific-comp/loop5.c [2025-04-29 10:58:03,342 WARN L117 ultiparseSymbolTable]: System include math.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 10:58:03,342 WARN L117 ultiparseSymbolTable]: System include assert.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 10:58:03,347 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/631a1252e/c61c11b0233441cca28612b97f11b828/FLAG34d58307a [2025-04-29 10:58:04,217 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/631a1252e/c61c11b0233441cca28612b97f11b828 [2025-04-29 10:58:04,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-29 10:58:04,220 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-29 10:58:04,221 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-29 10:58:04,221 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-29 10:58:04,224 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-29 10:58:04,224 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 10:58:04" (1/1) ... [2025-04-29 10:58:04,225 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3434ce13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:58:04, skipping insertion in model container [2025-04-29 10:58:04,225 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 10:58:04" (1/1) ... [2025-04-29 10:58:04,234 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-29 10:58:04,368 WARN L117 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-floats-scientific-comp/loop5.c[378,391] [2025-04-29 10:58:04,391 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 10:58:04,395 INFO L200 MainTranslator]: Completed pre-run [2025-04-29 10:58:04,418 WARN L117 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-floats-scientific-comp/loop5.c[378,391] [2025-04-29 10:58:04,425 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 10:58:04,436 INFO L204 MainTranslator]: Completed translation [2025-04-29 10:58:04,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:58:04 WrapperNode [2025-04-29 10:58:04,437 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-29 10:58:04,438 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-29 10:58:04,438 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-29 10:58:04,438 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-29 10:58:04,444 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:58:04" (1/1) ... [2025-04-29 10:58:04,448 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:58:04" (1/1) ... [2025-04-29 10:58:04,461 INFO L138 Inliner]: procedures = 11, calls = 6, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 56 [2025-04-29 10:58:04,462 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-29 10:58:04,462 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-29 10:58:04,462 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-29 10:58:04,462 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-29 10:58:04,468 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:58:04" (1/1) ... [2025-04-29 10:58:04,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:58:04" (1/1) ... [2025-04-29 10:58:04,470 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:58:04" (1/1) ... [2025-04-29 10:58:04,476 INFO L175 MemorySlicer]: No memory access in input program. [2025-04-29 10:58:04,476 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:58:04" (1/1) ... [2025-04-29 10:58:04,477 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:58:04" (1/1) ... [2025-04-29 10:58:04,479 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:58:04" (1/1) ... [2025-04-29 10:58:04,481 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:58:04" (1/1) ... [2025-04-29 10:58:04,488 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:58:04" (1/1) ... [2025-04-29 10:58:04,489 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:58:04" (1/1) ... [2025-04-29 10:58:04,489 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:58:04" (1/1) ... [2025-04-29 10:58:04,491 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-29 10:58:04,494 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-29 10:58:04,494 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-29 10:58:04,494 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-29 10:58:04,495 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:58:04" (1/1) ... [2025-04-29 10:58:04,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 10:58:04,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 10:58:04,519 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) [2025-04-29 10:58:04,521 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 [2025-04-29 10:58:04,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-29 10:58:04,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-29 10:58:04,578 INFO L234 CfgBuilder]: Building ICFG [2025-04-29 10:58:04,579 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-29 10:58:04,651 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2025-04-29 10:58:04,651 INFO L283 CfgBuilder]: Performing block encoding [2025-04-29 10:58:04,657 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-29 10:58:04,657 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-04-29 10:58:04,657 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 10:58:04 BoogieIcfgContainer [2025-04-29 10:58:04,657 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-29 10:58:04,659 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-29 10:58:04,659 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-29 10:58:04,662 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-29 10:58:04,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 10:58:04" (1/3) ... [2025-04-29 10:58:04,663 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29df48aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 10:58:04, skipping insertion in model container [2025-04-29 10:58:04,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:58:04" (2/3) ... [2025-04-29 10:58:04,663 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29df48aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 10:58:04, skipping insertion in model container [2025-04-29 10:58:04,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 10:58:04" (3/3) ... [2025-04-29 10:58:04,664 INFO L128 eAbstractionObserver]: Analyzing ICFG loop5.c [2025-04-29 10:58:04,673 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-29 10:58:04,675 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG loop5.c that has 1 procedures, 17 locations, 21 edges, 1 initial locations, 1 loop locations, and 1 error locations. [2025-04-29 10:58:04,715 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-29 10:58:04,725 INFO L340 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;@21248f1f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-29 10:58:04,725 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-04-29 10:58:04,729 INFO L278 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 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) [2025-04-29 10:58:04,732 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-04-29 10:58:04,733 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 10:58:04,733 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 10:58:04,733 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-29 10:58:04,737 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 10:58:04,738 INFO L85 PathProgramCache]: Analyzing trace with hash 620393963, now seen corresponding path program 1 times [2025-04-29 10:58:04,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 10:58:04,743 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739459096] [2025-04-29 10:58:04,744 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 10:58:04,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 10:58:04,787 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-29 10:58:04,793 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-29 10:58:04,794 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 10:58:04,794 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 10:58:04,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 10:58:04,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 10:58:04,824 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739459096] [2025-04-29 10:58:04,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739459096] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 10:58:04,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 10:58:04,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 10:58:04,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155699736] [2025-04-29 10:58:04,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 10:58:04,829 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-04-29 10:58:04,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 10:58:04,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-04-29 10:58:04,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-29 10:58:04,844 INFO L87 Difference]: Start difference. First operand has 17 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 10:58:04,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-29 10:58:04,856 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2025-04-29 10:58:04,857 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-29 10:58:04,857 INFO L79 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-04-29 10:58:04,858 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-29 10:58:04,862 INFO L225 Difference]: With dead ends: 32 [2025-04-29 10:58:04,862 INFO L226 Difference]: Without dead ends: 13 [2025-04-29 10:58:04,863 INFO L436 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 [2025-04-29 10:58:04,867 INFO L437 NwaCegarLoop]: 18 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, 18 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 [2025-04-29 10:58:04,867 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-29 10:58:04,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2025-04-29 10:58:04,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2025-04-29 10:58:04,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 10:58:04,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2025-04-29 10:58:04,889 INFO L79 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 8 [2025-04-29 10:58:04,889 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-29 10:58:04,889 INFO L485 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2025-04-29 10:58:04,890 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 10:58:04,890 INFO L278 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2025-04-29 10:58:04,890 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-04-29 10:58:04,890 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 10:58:04,890 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 10:58:04,890 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-29 10:58:04,890 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-29 10:58:04,891 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 10:58:04,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1325873706, now seen corresponding path program 1 times [2025-04-29 10:58:04,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 10:58:04,891 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38291808] [2025-04-29 10:58:04,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 10:58:04,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 10:58:04,903 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-29 10:58:04,919 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-29 10:58:04,919 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 10:58:04,919 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-29 10:58:04,919 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-29 10:58:04,925 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-29 10:58:04,933 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-29 10:58:04,934 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 10:58:04,934 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-29 10:58:04,948 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-29 10:58:04,948 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-29 10:58:04,949 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-04-29 10:58:04,950 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-29 10:58:04,952 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-04-29 10:58:04,971 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-29 10:58:04,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 10:58:04 BoogieIcfgContainer [2025-04-29 10:58:04,976 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-29 10:58:04,976 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-29 10:58:04,976 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-29 10:58:04,976 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-29 10:58:04,977 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 10:58:04" (3/4) ... [2025-04-29 10:58:04,979 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-04-29 10:58:04,979 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-29 10:58:04,980 INFO L158 Benchmark]: Toolchain (without parser) took 759.70ms. Allocated memory is still 142.6MB. Free memory was 113.4MB in the beginning and 64.4MB in the end (delta: 49.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-04-29 10:58:04,980 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 123.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 10:58:04,980 INFO L158 Benchmark]: CACSL2BoogieTranslator took 216.74ms. Allocated memory is still 142.6MB. Free memory was 113.0MB in the beginning and 98.8MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-29 10:58:04,981 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.62ms. Allocated memory is still 142.6MB. Free memory was 98.8MB in the beginning and 97.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 10:58:04,981 INFO L158 Benchmark]: Boogie Preprocessor took 31.03ms. Allocated memory is still 142.6MB. Free memory was 97.4MB in the beginning and 96.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 10:58:04,981 INFO L158 Benchmark]: RCFGBuilder took 163.49ms. Allocated memory is still 142.6MB. Free memory was 96.1MB in the beginning and 85.1MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 10:58:04,981 INFO L158 Benchmark]: TraceAbstraction took 316.83ms. Allocated memory is still 142.6MB. Free memory was 84.7MB in the beginning and 64.4MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-29 10:58:04,981 INFO L158 Benchmark]: Witness Printer took 3.24ms. Allocated memory is still 142.6MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 10:58:04,982 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 123.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 216.74ms. Allocated memory is still 142.6MB. Free memory was 113.0MB in the beginning and 98.8MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.62ms. Allocated memory is still 142.6MB. Free memory was 98.8MB in the beginning and 97.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.03ms. Allocated memory is still 142.6MB. Free memory was 97.4MB in the beginning and 96.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 163.49ms. Allocated memory is still 142.6MB. Free memory was 96.1MB in the beginning and 85.1MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 316.83ms. Allocated memory is still 142.6MB. Free memory was 84.7MB in the beginning and 64.4MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.24ms. Allocated memory is still 142.6MB. Free memory is still 64.4MB. 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: 15]: 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 50, overapproximation of someBinaryArithmeticDOUBLEoperation at line 25, overapproximation of someBinaryDOUBLEComparisonOperation at line 58, overapproximation of someBinaryDOUBLEComparisonOperation at line 24, overapproximation of someBinaryArithmeticFLOAToperation at line 38, overapproximation of someBinaryArithmeticFLOAToperation at line 32. Possible FailurePath: [L17] float pi = 3.14159 ; VAL [pi=314159/100000] [L36] int x ; [L37] float angleInRadian ; [L38] float phaseLag = pi/2, phaseLead=pi ; [L39] double sum1=0.0, sum2 = 0.0 ; [L40] int temp; [L41] double count=0.0 ; VAL [pi=314159/100000, sum1=0, sum2=0] [L47] x = __VERIFIER_nondet_int() [L48] CALL assume_abort_if_not(x > -180 && x < 180) [L13] COND FALSE !(!cond) VAL [pi=314159/100000] [L48] RET assume_abort_if_not(x > -180 && x < 180) [L49] CALL, EXPR radianMeasure(x) [L32] return (degrees * (pi/180)) ; VAL [pi=314159/100000] [L49] RET, EXPR radianMeasure(x) [L49] angleInRadian = radianMeasure(x) [L50] sum2 = sum2 + sin(angleInRadian+2*phaseLead) [L51] sum1 = sum1 + cos(angleInRadian+3*phaseLag) [L53] temp = __VERIFIER_nondet_int() [L54] count++ VAL [pi=314159/100000, temp=0] [L55] COND TRUE temp == 0 VAL [pi=314159/100000] [L58] CALL, EXPR diff(sum1,sum2) [L24] COND TRUE x1 > x2 [L25] return (x1-x2) ; VAL [pi=314159/100000] [L58] RET, EXPR diff(sum1,sum2) [L58] CALL __VERIFIER_assert(diff(sum1,sum2) <= count*2) [L15] COND TRUE !(cond) VAL [pi=314159/100000] [L15] reach_error() VAL [pi=314159/100000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 21 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, 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, 18 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, 18 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=17occurred 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, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-04-29 10:58:04,998 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 ../../../trunk/examples/svcomp/loop-floats-scientific-comp/loop5.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 0f1ff2bca9ae4e97512dcdbf6ed3fbe00e1dc2e354eaf008ff87dcc98fa62e49 --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-29 10:58:06,752 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-29 10:58:06,827 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-04-29 10:58:06,832 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-29 10:58:06,834 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-29 10:58:06,852 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-29 10:58:06,852 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-29 10:58:06,852 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-29 10:58:06,852 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-29 10:58:06,852 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-29 10:58:06,853 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-29 10:58:06,853 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-29 10:58:06,854 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-29 10:58:06,854 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-29 10:58:06,854 INFO L153 SettingsManager]: * Use SBE=true [2025-04-29 10:58:06,855 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-29 10:58:06,855 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-29 10:58:06,855 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-29 10:58:06,855 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-29 10:58:06,855 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-29 10:58:06,855 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-29 10:58:06,855 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-29 10:58:06,855 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-29 10:58:06,855 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-04-29 10:58:06,855 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-04-29 10:58:06,856 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-04-29 10:58:06,856 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-29 10:58:06,856 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-29 10:58:06,856 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-29 10:58:06,856 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-29 10:58:06,856 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-29 10:58:06,856 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 10:58:06,856 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-29 10:58:06,857 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 10:58:06,857 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 10:58:06,857 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-29 10:58:06,857 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 10:58:06,857 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-29 10:58:06,857 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 10:58:06,857 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 10:58:06,857 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-29 10:58:06,857 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-29 10:58:06,857 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-29 10:58:06,857 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-29 10:58:06,858 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-04-29 10:58:06,858 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-04-29 10:58:06,858 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-29 10:58:06,858 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-29 10:58:06,858 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-29 10:58:06,858 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 -> 0f1ff2bca9ae4e97512dcdbf6ed3fbe00e1dc2e354eaf008ff87dcc98fa62e49 [2025-04-29 10:58:07,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-29 10:58:07,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-29 10:58:07,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-29 10:58:07,132 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-29 10:58:07,134 INFO L274 PluginConnector]: CDTParser initialized [2025-04-29 10:58:07,135 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-floats-scientific-comp/loop5.c [2025-04-29 10:58:08,469 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81855f736/687a998b2be148fab9ab167be001f899/FLAGa2485da35 [2025-04-29 10:58:08,627 INFO L389 CDTParser]: Found 1 translation units. [2025-04-29 10:58:08,628 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-floats-scientific-comp/loop5.c [2025-04-29 10:58:08,629 WARN L117 ultiparseSymbolTable]: System include math.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 10:58:08,629 WARN L117 ultiparseSymbolTable]: System include assert.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 10:58:08,632 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81855f736/687a998b2be148fab9ab167be001f899/FLAGa2485da35 [2025-04-29 10:58:09,519 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81855f736/687a998b2be148fab9ab167be001f899 [2025-04-29 10:58:09,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-29 10:58:09,522 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-29 10:58:09,523 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-29 10:58:09,523 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-29 10:58:09,525 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-29 10:58:09,526 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 10:58:09" (1/1) ... [2025-04-29 10:58:09,530 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67d844c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:58:09, skipping insertion in model container [2025-04-29 10:58:09,531 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 10:58:09" (1/1) ... [2025-04-29 10:58:09,542 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-29 10:58:09,686 WARN L117 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-floats-scientific-comp/loop5.c[378,391] [2025-04-29 10:58:09,714 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 10:58:09,721 INFO L200 MainTranslator]: Completed pre-run [2025-04-29 10:58:09,741 WARN L117 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-floats-scientific-comp/loop5.c[378,391] [2025-04-29 10:58:09,754 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 10:58:09,769 INFO L204 MainTranslator]: Completed translation [2025-04-29 10:58:09,770 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:58:09 WrapperNode [2025-04-29 10:58:09,770 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-29 10:58:09,771 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-29 10:58:09,771 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-29 10:58:09,771 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-29 10:58:09,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:58:09" (1/1) ... [2025-04-29 10:58:09,782 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:58:09" (1/1) ... [2025-04-29 10:58:09,798 INFO L138 Inliner]: procedures = 12, calls = 6, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 55 [2025-04-29 10:58:09,799 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-29 10:58:09,800 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-29 10:58:09,800 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-29 10:58:09,800 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-29 10:58:09,806 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:58:09" (1/1) ... [2025-04-29 10:58:09,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:58:09" (1/1) ... [2025-04-29 10:58:09,809 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:58:09" (1/1) ... [2025-04-29 10:58:09,817 INFO L175 MemorySlicer]: No memory access in input program. [2025-04-29 10:58:09,819 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:58:09" (1/1) ... [2025-04-29 10:58:09,819 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:58:09" (1/1) ... [2025-04-29 10:58:09,823 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:58:09" (1/1) ... [2025-04-29 10:58:09,823 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:58:09" (1/1) ... [2025-04-29 10:58:09,827 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:58:09" (1/1) ... [2025-04-29 10:58:09,829 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:58:09" (1/1) ... [2025-04-29 10:58:09,829 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:58:09" (1/1) ... [2025-04-29 10:58:09,832 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-29 10:58:09,833 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-29 10:58:09,833 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-29 10:58:09,833 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-29 10:58:09,834 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:58:09" (1/1) ... [2025-04-29 10:58:09,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 10:58:09,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 10:58:09,858 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) [2025-04-29 10:58:09,860 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 [2025-04-29 10:58:09,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-29 10:58:09,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-29 10:58:09,922 INFO L234 CfgBuilder]: Building ICFG [2025-04-29 10:58:09,923 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-29 10:58:14,954 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2025-04-29 10:58:14,954 INFO L283 CfgBuilder]: Performing block encoding [2025-04-29 10:58:14,960 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-29 10:58:14,960 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-04-29 10:58:14,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 10:58:14 BoogieIcfgContainer [2025-04-29 10:58:14,961 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-29 10:58:14,963 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-29 10:58:14,963 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-29 10:58:14,966 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-29 10:58:14,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 10:58:09" (1/3) ... [2025-04-29 10:58:14,966 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cb80c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 10:58:14, skipping insertion in model container [2025-04-29 10:58:14,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:58:09" (2/3) ... [2025-04-29 10:58:14,966 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cb80c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 10:58:14, skipping insertion in model container [2025-04-29 10:58:14,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 10:58:14" (3/3) ... [2025-04-29 10:58:14,967 INFO L128 eAbstractionObserver]: Analyzing ICFG loop5.c [2025-04-29 10:58:14,976 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-29 10:58:14,978 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG loop5.c that has 1 procedures, 17 locations, 21 edges, 1 initial locations, 1 loop locations, and 1 error locations. [2025-04-29 10:58:15,013 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-29 10:58:15,023 INFO L340 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;@659f1e3e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-29 10:58:15,023 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-04-29 10:58:15,026 INFO L278 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 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) [2025-04-29 10:58:15,029 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-04-29 10:58:15,030 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 10:58:15,030 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 10:58:15,031 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-29 10:58:15,034 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 10:58:15,035 INFO L85 PathProgramCache]: Analyzing trace with hash 620393963, now seen corresponding path program 1 times [2025-04-29 10:58:15,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-29 10:58:15,042 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [838960164] [2025-04-29 10:58:15,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 10:58:15,042 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 [2025-04-29 10:58:15,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-04-29 10:58:15,044 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) [2025-04-29 10:58:15,045 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 [2025-04-29 10:58:15,079 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-29 10:58:15,215 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-29 10:58:15,216 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 10:58:15,216 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 10:58:15,223 INFO L256 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-04-29 10:58:15,226 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 10:58:15,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 10:58:15,238 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-29 10:58:15,238 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-04-29 10:58:15,239 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [838960164] [2025-04-29 10:58:15,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [838960164] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 10:58:15,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 10:58:15,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 10:58:15,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351818288] [2025-04-29 10:58:15,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 10:58:15,244 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-04-29 10:58:15,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-04-29 10:58:15,256 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-04-29 10:58:15,256 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-29 10:58:15,258 INFO L87 Difference]: Start difference. First operand has 17 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 10:58:15,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-29 10:58:15,269 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2025-04-29 10:58:15,270 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-29 10:58:15,271 INFO L79 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-04-29 10:58:15,271 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-29 10:58:15,277 INFO L225 Difference]: With dead ends: 32 [2025-04-29 10:58:15,277 INFO L226 Difference]: Without dead ends: 13 [2025-04-29 10:58:15,280 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-29 10:58:15,283 INFO L437 NwaCegarLoop]: 18 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, 18 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 [2025-04-29 10:58:15,284 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-29 10:58:15,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2025-04-29 10:58:15,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2025-04-29 10:58:15,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 10:58:15,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2025-04-29 10:58:15,303 INFO L79 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 8 [2025-04-29 10:58:15,303 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-29 10:58:15,303 INFO L485 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2025-04-29 10:58:15,304 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 10:58:15,305 INFO L278 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2025-04-29 10:58:15,305 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-04-29 10:58:15,305 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 10:58:15,305 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 10:58:15,316 INFO L540 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)] Forceful destruction successful, exit code 0 [2025-04-29 10:58:15,506 WARN L466 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 [2025-04-29 10:58:15,506 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-29 10:58:15,507 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 10:58:15,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1325873706, now seen corresponding path program 1 times [2025-04-29 10:58:15,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-29 10:58:15,508 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1877577778] [2025-04-29 10:58:15,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 10:58:15,508 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 [2025-04-29 10:58:15,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-04-29 10:58:15,510 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) [2025-04-29 10:58:15,511 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 [2025-04-29 10:58:15,539 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-29 10:58:15,905 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-29 10:58:15,906 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 10:58:15,906 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-29 10:58:15,906 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-29 10:58:15,928 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-29 10:58:16,273 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-29 10:58:16,273 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 10:58:16,273 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-29 10:58:16,309 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-04-29 10:58:16,309 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-29 10:58:16,310 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-04-29 10:58:16,333 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 (3)] Ended with exit code 0 [2025-04-29 10:58:16,513 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /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 [2025-04-29 10:58:16,515 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-04-29 10:58:16,546 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-29 10:58:16,549 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 10:58:16 BoogieIcfgContainer [2025-04-29 10:58:16,549 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-29 10:58:16,550 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-29 10:58:16,550 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-29 10:58:16,550 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-29 10:58:16,551 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 10:58:14" (3/4) ... [2025-04-29 10:58:16,553 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-04-29 10:58:16,554 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-29 10:58:16,554 INFO L158 Benchmark]: Toolchain (without parser) took 7032.78ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 43.0MB in the end (delta: 50.1MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-04-29 10:58:16,555 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 83.9MB. Free memory is still 45.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 10:58:16,555 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.00ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 78.5MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-29 10:58:16,555 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.42ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 77.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 10:58:16,556 INFO L158 Benchmark]: Boogie Preprocessor took 32.41ms. Allocated memory is still 117.4MB. Free memory was 77.0MB in the beginning and 75.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 10:58:16,557 INFO L158 Benchmark]: RCFGBuilder took 5128.27ms. Allocated memory is still 117.4MB. Free memory was 75.3MB in the beginning and 65.0MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 10:58:16,558 INFO L158 Benchmark]: TraceAbstraction took 1586.60ms. Allocated memory is still 117.4MB. Free memory was 64.4MB in the beginning and 43.2MB in the end (delta: 21.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-04-29 10:58:16,558 INFO L158 Benchmark]: Witness Printer took 4.25ms. Allocated memory is still 117.4MB. Free memory was 43.2MB in the beginning and 43.0MB in the end (delta: 191.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 10:58:16,559 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 83.9MB. Free memory is still 45.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 248.00ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 78.5MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.42ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 77.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.41ms. Allocated memory is still 117.4MB. Free memory was 77.0MB in the beginning and 75.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 5128.27ms. Allocated memory is still 117.4MB. Free memory was 75.3MB in the beginning and 65.0MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1586.60ms. Allocated memory is still 117.4MB. Free memory was 64.4MB in the beginning and 43.2MB in the end (delta: 21.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 4.25ms. Allocated memory is still 117.4MB. Free memory was 43.2MB in the beginning and 43.0MB in the end (delta: 191.6kB). 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: 15]: 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 cos at line 51, overapproximation of sin at line 50. Possible FailurePath: [L17] float pi = 3.14159 ; VAL [pi=3.141590118408203] [L36] int x ; [L37] float angleInRadian ; [L38] float phaseLag = pi/2, phaseLead=pi ; [L39] double sum1=0.0, sum2 = 0.0 ; [L40] int temp; [L41] double count=0.0 ; VAL [count=0.0, pi=3.141590118408203, sum1=0.0, sum2=0.0] [L47] x = __VERIFIER_nondet_int() [L48] CALL assume_abort_if_not(x > -180 && x < 180) [L13] COND FALSE !(!cond) VAL [pi=3.141590118408203] [L48] RET assume_abort_if_not(x > -180 && x < 180) [L49] CALL, EXPR radianMeasure(x) [L32] return (degrees * (pi/180)) ; VAL [\result=0.0, pi=3.141590118408203] [L49] RET, EXPR radianMeasure(x) [L49] angleInRadian = radianMeasure(x) [L50] sum2 = sum2 + sin(angleInRadian+2*phaseLead) [L51] sum1 = sum1 + cos(angleInRadian+3*phaseLag) [L53] temp = __VERIFIER_nondet_int() [L54] count++ VAL [count=1.0, pi=3.141590118408203, sum1=0.0, sum2=-26815615859885194000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L55] COND TRUE temp == 0 VAL [count=1.0, pi=3.141590118408203, sum1=0.0, sum2=-26815615859885194000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L58] CALL, EXPR diff(sum1,sum2) [L24] COND TRUE x1 > x2 [L25] return (x1-x2) ; VAL [\result=26815615859885194000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, pi=3.141590118408203] [L58] RET, EXPR diff(sum1,sum2) [L58] CALL __VERIFIER_assert(diff(sum1,sum2) <= count*2) [L15] COND TRUE !(cond) VAL [pi=3.141590118408203] [L15] reach_error() VAL [pi=3.141590118408203] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 21 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, 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, 18 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, 18 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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, 0.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 21 ConjunctsInSsa, 1 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 [2025-04-29 10:58:16,591 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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample