./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/loop-floats-scientific-comp/loop4.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/loop4.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 68894b252ca22b7338bedec0c3315e91cae39a5c9f6806b82323bac08325c6e9 --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-29 10:58:01,427 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-29 10:58:01,475 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-04-29 10:58:01,478 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-29 10:58:01,478 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-29 10:58:01,496 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-29 10:58:01,497 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-29 10:58:01,497 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-29 10:58:01,497 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-29 10:58:01,498 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-29 10:58:01,498 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-29 10:58:01,498 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-29 10:58:01,498 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-29 10:58:01,498 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-29 10:58:01,498 INFO L153 SettingsManager]: * Use SBE=true [2025-04-29 10:58:01,498 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-29 10:58:01,498 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-29 10:58:01,498 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-29 10:58:01,499 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-29 10:58:01,499 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-29 10:58:01,499 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-29 10:58:01,499 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-29 10:58:01,499 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-29 10:58:01,499 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-29 10:58:01,499 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-29 10:58:01,499 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-29 10:58:01,499 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-29 10:58:01,499 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-29 10:58:01,499 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-29 10:58:01,499 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 10:58:01,500 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-29 10:58:01,500 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 10:58:01,500 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 10:58:01,500 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-29 10:58:01,500 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 10:58:01,500 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-29 10:58:01,500 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 10:58:01,500 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 10:58:01,500 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-29 10:58:01,500 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-29 10:58:01,500 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-29 10:58:01,501 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-29 10:58:01,501 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-29 10:58:01,501 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-29 10:58:01,501 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-29 10:58:01,501 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-29 10:58:01,501 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-29 10:58:01,501 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 -> 68894b252ca22b7338bedec0c3315e91cae39a5c9f6806b82323bac08325c6e9 [2025-04-29 10:58:01,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-29 10:58:01,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-29 10:58:01,720 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-29 10:58:01,721 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-29 10:58:01,721 INFO L274 PluginConnector]: CDTParser initialized [2025-04-29 10:58:01,722 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-floats-scientific-comp/loop4.c [2025-04-29 10:58:02,978 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac7affcfc/a98372ed25a84fcc90f0cbfcddaf844f/FLAGb55074faa [2025-04-29 10:58:03,153 INFO L389 CDTParser]: Found 1 translation units. [2025-04-29 10:58:03,153 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-floats-scientific-comp/loop4.c [2025-04-29 10:58:03,155 WARN L117 ultiparseSymbolTable]: System include math.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 10:58:03,155 WARN L117 ultiparseSymbolTable]: System include assert.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 10:58:03,161 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac7affcfc/a98372ed25a84fcc90f0cbfcddaf844f/FLAGb55074faa [2025-04-29 10:58:04,132 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac7affcfc/a98372ed25a84fcc90f0cbfcddaf844f [2025-04-29 10:58:04,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-29 10:58:04,136 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-29 10:58:04,141 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-29 10:58:04,141 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-29 10:58:04,144 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-29 10:58:04,149 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 10:58:04" (1/1) ... [2025-04-29 10:58:04,150 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e27ba5f 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 10:58:04,150 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 10:58:04" (1/1) ... [2025-04-29 10:58:04,160 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-29 10:58:04,302 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/loop4.c[347,360] [2025-04-29 10:58:04,327 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 10:58:04,332 INFO L200 MainTranslator]: Completed pre-run [2025-04-29 10:58:04,351 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/loop4.c[347,360] [2025-04-29 10:58:04,362 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 10:58:04,371 INFO L204 MainTranslator]: Completed translation [2025-04-29 10:58:04,373 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:58:04 WrapperNode [2025-04-29 10:58:04,373 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-29 10:58:04,374 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-29 10:58:04,374 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-29 10:58:04,375 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-29 10:58:04,380 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 10:58:04,385 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 10:58:04,401 INFO L138 Inliner]: procedures = 11, calls = 6, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 56 [2025-04-29 10:58:04,402 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-29 10:58:04,403 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-29 10:58:04,403 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-29 10:58:04,404 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-29 10:58:04,409 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 10:58:04,410 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 10:58:04,410 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 10:58:04,416 INFO L175 MemorySlicer]: No memory access in input program. [2025-04-29 10:58:04,417 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 10:58:04,417 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 10:58:04,420 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 10:58:04,424 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 10:58:04,426 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 10:58:04,426 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 10:58:04,427 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 10:58:04,429 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-29 10:58:04,433 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-29 10:58:04,433 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-29 10:58:04,433 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-29 10:58:04,434 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 10:58:04,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 10:58:04,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 10:58:04,457 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 10:58:04,459 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 10:58:04,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-29 10:58:04,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-29 10:58:04,520 INFO L234 CfgBuilder]: Building ICFG [2025-04-29 10:58:04,521 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-29 10:58:04,591 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2025-04-29 10:58:04,592 INFO L283 CfgBuilder]: Performing block encoding [2025-04-29 10:58:04,597 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-29 10:58:04,598 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-04-29 10:58:04,598 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 10:58:04 BoogieIcfgContainer [2025-04-29 10:58:04,598 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-29 10:58:04,599 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-29 10:58:04,600 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-29 10:58:04,602 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-29 10:58:04,603 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 10:58:04" (1/3) ... [2025-04-29 10:58:04,603 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30e05781 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 10:58:04,603 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 10:58:04,603 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30e05781 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 10:58:04,603 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 10:58:04,604 INFO L128 eAbstractionObserver]: Analyzing ICFG loop4.c [2025-04-29 10:58:04,614 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-29 10:58:04,615 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG loop4.c that has 1 procedures, 17 locations, 21 edges, 1 initial locations, 1 loop locations, and 1 error locations. [2025-04-29 10:58:04,649 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-29 10:58:04,659 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;@71e7961e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-29 10:58:04,659 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-04-29 10:58:04,663 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 10:58:04,667 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-04-29 10:58:04,667 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 10:58:04,668 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 10:58:04,668 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-29 10:58:04,672 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 10:58:04,673 INFO L85 PathProgramCache]: Analyzing trace with hash 620393963, now seen corresponding path program 1 times [2025-04-29 10:58:04,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 10:58:04,678 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965845842] [2025-04-29 10:58:04,679 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 10:58:04,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 10:58:04,725 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-29 10:58:04,730 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-29 10:58:04,731 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 10:58:04,731 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 10:58:04,753 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 10:58:04,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 10:58:04,753 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965845842] [2025-04-29 10:58:04,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965845842] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 10:58:04,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 10:58:04,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 10:58:04,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300129388] [2025-04-29 10:58:04,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 10:58:04,757 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-04-29 10:58:04,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 10:58:04,768 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-04-29 10:58:04,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-29 10:58:04,769 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 10:58:04,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-29 10:58:04,780 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2025-04-29 10:58:04,780 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-29 10:58:04,782 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 10:58:04,782 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-29 10:58:04,786 INFO L225 Difference]: With dead ends: 32 [2025-04-29 10:58:04,787 INFO L226 Difference]: Without dead ends: 13 [2025-04-29 10:58:04,789 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 10:58:04,791 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 10:58:04,794 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 10:58:04,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2025-04-29 10:58:04,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2025-04-29 10:58:04,811 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 10:58:04,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2025-04-29 10:58:04,817 INFO L79 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 8 [2025-04-29 10:58:04,817 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-29 10:58:04,817 INFO L485 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2025-04-29 10:58:04,817 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 10:58:04,818 INFO L278 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2025-04-29 10:58:04,818 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-04-29 10:58:04,818 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 10:58:04,818 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 10:58:04,819 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-29 10:58:04,819 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-29 10:58:04,819 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 10:58:04,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1325873706, now seen corresponding path program 1 times [2025-04-29 10:58:04,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 10:58:04,820 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600732583] [2025-04-29 10:58:04,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 10:58:04,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 10:58:04,833 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-29 10:58:04,843 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-29 10:58:04,843 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 10:58:04,844 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-29 10:58:04,844 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-29 10:58:04,848 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-29 10:58:04,860 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-29 10:58:04,861 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 10:58:04,861 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-29 10:58:04,872 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-29 10:58:04,872 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-29 10:58:04,873 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-04-29 10:58:04,875 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-29 10:58:04,877 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-04-29 10:58:04,895 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-29 10:58:04,898 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 10:58:04 BoogieIcfgContainer [2025-04-29 10:58:04,898 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-29 10:58:04,898 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-29 10:58:04,898 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-29 10:58:04,898 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-29 10:58:04,899 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 10:58:04,901 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-04-29 10:58:04,902 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-29 10:58:04,902 INFO L158 Benchmark]: Toolchain (without parser) took 767.01ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 63.5MB in the end (delta: 48.7MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-04-29 10:58:04,903 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 126.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 10:58:04,903 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.47ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 98.2MB in the end (delta: 14.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 10:58:04,903 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.42ms. Allocated memory is still 142.6MB. Free memory was 98.2MB in the beginning and 95.9MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 10:58:04,903 INFO L158 Benchmark]: Boogie Preprocessor took 25.94ms. Allocated memory is still 142.6MB. Free memory was 95.9MB in the beginning and 94.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 10:58:04,904 INFO L158 Benchmark]: RCFGBuilder took 165.51ms. Allocated memory is still 142.6MB. Free memory was 94.6MB in the beginning and 84.0MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 10:58:04,904 INFO L158 Benchmark]: TraceAbstraction took 298.30ms. Allocated memory is still 142.6MB. Free memory was 84.0MB in the beginning and 63.5MB in the end (delta: 20.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-04-29 10:58:04,904 INFO L158 Benchmark]: Witness Printer took 3.71ms. Allocated memory is still 142.6MB. Free memory is still 63.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 10:58:04,907 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 126.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 232.47ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 98.2MB in the end (delta: 14.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.42ms. Allocated memory is still 142.6MB. Free memory was 98.2MB in the beginning and 95.9MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.94ms. Allocated memory is still 142.6MB. Free memory was 95.9MB in the beginning and 94.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 165.51ms. Allocated memory is still 142.6MB. Free memory was 94.6MB in the beginning and 84.0MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 298.30ms. Allocated memory is still 142.6MB. Free memory was 84.0MB in the beginning and 63.5MB in the end (delta: 20.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 3.71ms. Allocated memory is still 142.6MB. Free memory is still 63.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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 24, overapproximation of someBinaryArithmeticDOUBLEoperation at line 49, overapproximation of someBinaryDOUBLEComparisonOperation at line 57, overapproximation of someBinaryDOUBLEComparisonOperation at line 23, overapproximation of someBinaryArithmeticFLOAToperation at line 37, overapproximation of someBinaryArithmeticFLOAToperation at line 31. Possible FailurePath: [L16] float pi = 3.14159 ; VAL [pi=314159/100000] [L35] int x ; [L36] float angleInRadian ; [L37] float phaseLag = pi/2, phaseLead=pi ; [L38] double sum1=0.0, sum2 = 0.0 ; [L39] int temp; [L40] double count=0.0 ; VAL [pi=314159/100000, sum1=0, sum2=0] [L46] x = __VERIFIER_nondet_int() [L47] CALL assume_abort_if_not(x > -180 && x < 180) [L12] COND FALSE !(!cond) VAL [pi=314159/100000] [L47] RET assume_abort_if_not(x > -180 && x < 180) [L48] CALL, EXPR radianMeasure(x) [L31] return (degrees * (pi/180)) ; VAL [pi=314159/100000] [L48] RET, EXPR radianMeasure(x) [L48] angleInRadian = radianMeasure(x) [L49] sum2 = sum2 + sin(angleInRadian+2*phaseLead) [L50] sum1 = sum1 + cos(angleInRadian+phaseLag) [L52] temp = __VERIFIER_nondet_int() [L53] count++ VAL [pi=314159/100000, temp=0] [L54] COND TRUE temp == 0 VAL [pi=314159/100000] [L57] CALL, EXPR diff(sum1,sum2) [L23] COND TRUE x1 > x2 [L24] return (x1-x2) ; VAL [pi=314159/100000] [L57] RET, EXPR diff(sum1,sum2) [L57] CALL __VERIFIER_assert(diff(sum1,sum2) <= count) [L14] COND TRUE !(cond) VAL [pi=314159/100000] [L14] 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 10:58:04,922 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/loop4.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 68894b252ca22b7338bedec0c3315e91cae39a5c9f6806b82323bac08325c6e9 --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-29 10:58:06,731 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-29 10:58:06,807 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-04-29 10:58:06,810 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-29 10:58:06,811 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-29 10:58:06,841 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-29 10:58:06,841 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-29 10:58:06,841 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-29 10:58:06,841 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-29 10:58:06,841 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-29 10:58:06,843 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-29 10:58:06,844 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-29 10:58:06,844 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-29 10:58:06,844 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-29 10:58:06,844 INFO L153 SettingsManager]: * Use SBE=true [2025-04-29 10:58:06,844 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-29 10:58:06,844 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-29 10:58:06,844 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-29 10:58:06,844 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-29 10:58:06,844 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-29 10:58:06,844 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-29 10:58:06,844 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-29 10:58:06,844 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-29 10:58:06,844 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-04-29 10:58:06,845 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-04-29 10:58:06,845 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-04-29 10:58:06,845 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-29 10:58:06,845 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-29 10:58:06,845 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-29 10:58:06,845 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-29 10:58:06,845 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-29 10:58:06,845 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 10:58:06,845 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-29 10:58:06,845 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 10:58:06,845 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 10:58:06,845 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-29 10:58:06,845 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 10:58:06,845 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-29 10:58:06,845 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 10:58:06,845 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 10:58:06,845 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-29 10:58:06,845 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-29 10:58:06,845 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-29 10:58:06,846 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-29 10:58:06,846 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-04-29 10:58:06,846 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-04-29 10:58:06,846 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-29 10:58:06,846 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-29 10:58:06,846 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-29 10:58:06,846 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 -> 68894b252ca22b7338bedec0c3315e91cae39a5c9f6806b82323bac08325c6e9 [2025-04-29 10:58:07,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-29 10:58:07,181 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-29 10:58:07,184 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-29 10:58:07,186 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-29 10:58:07,186 INFO L274 PluginConnector]: CDTParser initialized [2025-04-29 10:58:07,187 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-floats-scientific-comp/loop4.c [2025-04-29 10:58:08,500 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce8466166/2daff02cf2a1407f88eac1fd1eabec3d/FLAGe4b6b74ec [2025-04-29 10:58:08,664 INFO L389 CDTParser]: Found 1 translation units. [2025-04-29 10:58:08,665 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-floats-scientific-comp/loop4.c [2025-04-29 10:58:08,668 WARN L117 ultiparseSymbolTable]: System include math.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 10:58:08,668 WARN L117 ultiparseSymbolTable]: System include assert.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 10:58:08,672 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce8466166/2daff02cf2a1407f88eac1fd1eabec3d/FLAGe4b6b74ec [2025-04-29 10:58:09,551 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce8466166/2daff02cf2a1407f88eac1fd1eabec3d [2025-04-29 10:58:09,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-29 10:58:09,557 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-29 10:58:09,558 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-29 10:58:09,561 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-29 10:58:09,565 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-29 10:58:09,565 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 10:58:09" (1/1) ... [2025-04-29 10:58:09,566 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@203f5e33 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 10:58:09,566 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 10:58:09" (1/1) ... [2025-04-29 10:58:09,577 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-29 10:58:09,695 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/loop4.c[347,360] [2025-04-29 10:58:09,716 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 10:58:09,722 INFO L200 MainTranslator]: Completed pre-run [2025-04-29 10:58:09,738 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/loop4.c[347,360] [2025-04-29 10:58:09,742 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 10:58:09,751 INFO L204 MainTranslator]: Completed translation [2025-04-29 10:58:09,752 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:58:09 WrapperNode [2025-04-29 10:58:09,752 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-29 10:58:09,753 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-29 10:58:09,753 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-29 10:58:09,753 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-29 10:58:09,757 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 10:58:09,763 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 10:58:09,774 INFO L138 Inliner]: procedures = 12, calls = 6, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 55 [2025-04-29 10:58:09,775 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-29 10:58:09,775 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-29 10:58:09,775 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-29 10:58:09,775 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-29 10:58:09,781 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 10:58:09,782 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 10:58:09,786 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 10:58:09,792 INFO L175 MemorySlicer]: No memory access in input program. [2025-04-29 10:58:09,793 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 10:58:09,793 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 10:58:09,799 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 10:58:09,803 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 10:58:09,806 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 10:58:09,807 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 10:58:09,808 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 10:58:09,810 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-29 10:58:09,811 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-29 10:58:09,811 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-29 10:58:09,811 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-29 10:58:09,812 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 10:58:09,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 10:58:09,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 10:58:09,840 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 10:58:09,843 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 10:58:09,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-29 10:58:09,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-29 10:58:09,913 INFO L234 CfgBuilder]: Building ICFG [2025-04-29 10:58:09,915 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-29 10:58:14,670 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2025-04-29 10:58:14,671 INFO L283 CfgBuilder]: Performing block encoding [2025-04-29 10:58:14,676 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-29 10:58:14,677 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-04-29 10:58:14,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 10:58:14 BoogieIcfgContainer [2025-04-29 10:58:14,677 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-29 10:58:14,679 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-29 10:58:14,679 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-29 10:58:14,682 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-29 10:58:14,682 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 10:58:09" (1/3) ... [2025-04-29 10:58:14,683 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9f31ff2 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 10:58:14,683 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 10:58:14,683 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9f31ff2 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 10:58:14,683 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 10:58:14,684 INFO L128 eAbstractionObserver]: Analyzing ICFG loop4.c [2025-04-29 10:58:14,693 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-29 10:58:14,695 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG loop4.c that has 1 procedures, 17 locations, 21 edges, 1 initial locations, 1 loop locations, and 1 error locations. [2025-04-29 10:58:14,728 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-29 10:58:14,735 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;@47650f38, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-29 10:58:14,735 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-04-29 10:58:14,740 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 10:58:14,743 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-04-29 10:58:14,743 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 10:58:14,743 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 10:58:14,744 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-29 10:58:14,747 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 10:58:14,748 INFO L85 PathProgramCache]: Analyzing trace with hash 620393963, now seen corresponding path program 1 times [2025-04-29 10:58:14,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-29 10:58:14,755 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1878735678] [2025-04-29 10:58:14,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 10:58:14,756 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 10:58:14,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-04-29 10:58:14,758 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 10:58:14,759 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 10:58:14,793 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-29 10:58:14,884 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-29 10:58:14,884 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 10:58:14,884 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 10:58:14,888 INFO L256 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-04-29 10:58:14,890 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 10:58:14,902 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 10:58:14,902 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-29 10:58:14,903 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-04-29 10:58:14,903 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1878735678] [2025-04-29 10:58:14,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1878735678] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 10:58:14,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 10:58:14,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 10:58:14,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652176962] [2025-04-29 10:58:14,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 10:58:14,907 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-04-29 10:58:14,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-04-29 10:58:14,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-04-29 10:58:14,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-29 10:58:14,937 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 10:58:14,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-29 10:58:14,947 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2025-04-29 10:58:14,947 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-29 10:58:14,949 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 10:58:14,950 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-29 10:58:14,955 INFO L225 Difference]: With dead ends: 32 [2025-04-29 10:58:14,955 INFO L226 Difference]: Without dead ends: 13 [2025-04-29 10:58:14,957 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 10:58:14,959 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 10:58:14,961 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 10:58:14,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2025-04-29 10:58:14,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2025-04-29 10:58:14,977 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 10:58:14,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2025-04-29 10:58:14,980 INFO L79 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 8 [2025-04-29 10:58:14,980 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-29 10:58:14,980 INFO L485 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2025-04-29 10:58:14,980 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 10:58:14,980 INFO L278 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2025-04-29 10:58:14,981 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-04-29 10:58:14,981 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 10:58:14,982 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 10:58:14,989 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 [2025-04-29 10:58:15,182 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 10:58:15,183 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-29 10:58:15,184 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 10:58:15,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1325873706, now seen corresponding path program 1 times [2025-04-29 10:58:15,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-29 10:58:15,185 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [960990422] [2025-04-29 10:58:15,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 10:58:15,185 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 10:58:15,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-04-29 10:58:15,187 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 10:58:15,190 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 10:58:15,212 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-29 10:58:15,542 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-29 10:58:15,543 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 10:58:15,543 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-29 10:58:15,543 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-29 10:58:15,569 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-29 10:58:15,877 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-29 10:58:15,878 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 10:58:15,878 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-29 10:58:15,910 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-04-29 10:58:15,910 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-29 10:58:15,911 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-04-29 10:58:15,932 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 10:58:16,117 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 10:58:16,119 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-04-29 10:58:16,151 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-29 10:58:16,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 10:58:16 BoogieIcfgContainer [2025-04-29 10:58:16,154 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-29 10:58:16,155 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-29 10:58:16,155 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-29 10:58:16,155 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-29 10:58:16,155 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 10:58:16,157 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-04-29 10:58:16,157 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-29 10:58:16,158 INFO L158 Benchmark]: Toolchain (without parser) took 6601.88ms. Allocated memory is still 83.9MB. Free memory was 59.6MB in the beginning and 47.9MB in the end (delta: 11.6MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2025-04-29 10:58:16,158 INFO L158 Benchmark]: CDTParser took 1.12ms. Allocated memory is still 83.9MB. Free memory is still 61.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 10:58:16,159 INFO L158 Benchmark]: CACSL2BoogieTranslator took 194.86ms. Allocated memory is still 83.9MB. Free memory was 59.6MB in the beginning and 45.0MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-29 10:58:16,161 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.70ms. Allocated memory is still 83.9MB. Free memory was 45.0MB in the beginning and 43.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 10:58:16,161 INFO L158 Benchmark]: Boogie Preprocessor took 35.63ms. Allocated memory is still 83.9MB. Free memory was 43.4MB in the beginning and 41.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 10:58:16,161 INFO L158 Benchmark]: RCFGBuilder took 4865.92ms. Allocated memory is still 83.9MB. Free memory was 41.9MB in the beginning and 31.9MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 10:58:16,161 INFO L158 Benchmark]: TraceAbstraction took 1475.43ms. Allocated memory is still 83.9MB. Free memory was 31.5MB in the beginning and 48.5MB in the end (delta: -17.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 10:58:16,161 INFO L158 Benchmark]: Witness Printer took 2.89ms. Allocated memory is still 83.9MB. Free memory was 48.5MB in the beginning and 47.9MB in the end (delta: 536.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 10:58:16,162 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.12ms. Allocated memory is still 83.9MB. Free memory is still 61.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 194.86ms. Allocated memory is still 83.9MB. Free memory was 59.6MB in the beginning and 45.0MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.70ms. Allocated memory is still 83.9MB. Free memory was 45.0MB in the beginning and 43.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.63ms. Allocated memory is still 83.9MB. Free memory was 43.4MB in the beginning and 41.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 4865.92ms. Allocated memory is still 83.9MB. Free memory was 41.9MB in the beginning and 31.9MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1475.43ms. Allocated memory is still 83.9MB. Free memory was 31.5MB in the beginning and 48.5MB in the end (delta: -17.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.89ms. Allocated memory is still 83.9MB. Free memory was 48.5MB in the beginning and 47.9MB in the end (delta: 536.6kB). 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: 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 cos at line 50, overapproximation of sin at line 49. Possible FailurePath: [L16] float pi = 3.14159 ; VAL [pi=3.141590118408203] [L35] int x ; [L36] float angleInRadian ; [L37] float phaseLag = pi/2, phaseLead=pi ; [L38] double sum1=0.0, sum2 = 0.0 ; [L39] int temp; [L40] double count=0.0 ; VAL [count=0.0, pi=3.141590118408203, sum1=0.0, sum2=0.0] [L46] x = __VERIFIER_nondet_int() [L47] CALL assume_abort_if_not(x > -180 && x < 180) [L12] COND FALSE !(!cond) VAL [pi=3.141590118408203] [L47] RET assume_abort_if_not(x > -180 && x < 180) [L48] CALL, EXPR radianMeasure(x) [L31] return (degrees * (pi/180)) ; VAL [\result=0.0, pi=3.141590118408203] [L48] RET, EXPR radianMeasure(x) [L48] angleInRadian = radianMeasure(x) [L49] sum2 = sum2 + sin(angleInRadian+2*phaseLead) [L50] sum1 = sum1 + cos(angleInRadian+phaseLag) [L52] temp = __VERIFIER_nondet_int() [L53] count++ VAL [count=1.0, pi=3.141590118408203, sum1=0.0, sum2=-2.0] [L54] COND TRUE temp == 0 VAL [count=1.0, pi=3.141590118408203, sum1=0.0, sum2=-2.0] [L57] CALL, EXPR diff(sum1,sum2) [L23] COND TRUE x1 > x2 [L24] return (x1-x2) ; VAL [\result=2.0, pi=3.141590118408203] [L57] RET, EXPR diff(sum1,sum2) [L57] CALL __VERIFIER_assert(diff(sum1,sum2) <= count) [L14] COND TRUE !(cond) VAL [pi=3.141590118408203] [L14] 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: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 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, 0.4s 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 10:58:16,194 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample