./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/loop-floats-scientific-comp/loop5.i --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.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6b555c1a190100d81472ccbf1fd7aa38859f39559581e0e1305f19efc021162a --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-30 10:15:49,046 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-30 10:15:49,091 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-04-30 10:15:49,095 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-30 10:15:49,098 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-30 10:15:49,120 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-30 10:15:49,122 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-30 10:15:49,122 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-30 10:15:49,123 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-30 10:15:49,123 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-30 10:15:49,123 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-30 10:15:49,124 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-30 10:15:49,124 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-30 10:15:49,124 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-30 10:15:49,124 INFO L153 SettingsManager]: * Use SBE=true [2025-04-30 10:15:49,124 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-30 10:15:49,124 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-30 10:15:49,124 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-30 10:15:49,125 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-30 10:15:49,125 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-30 10:15:49,125 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-30 10:15:49,125 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-30 10:15:49,125 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-30 10:15:49,126 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-30 10:15:49,126 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-30 10:15:49,126 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-30 10:15:49,126 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-30 10:15:49,126 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-30 10:15:49,126 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-30 10:15:49,126 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:15:49,126 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:15:49,126 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:15:49,126 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:15:49,126 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-30 10:15:49,126 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:15:49,126 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:15:49,126 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:15:49,126 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:15:49,126 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-30 10:15:49,127 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-30 10:15:49,127 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-30 10:15:49,127 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-30 10:15:49,127 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-30 10:15:49,127 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-30 10:15:49,127 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-30 10:15:49,127 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-30 10:15:49,127 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-30 10:15:49,127 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 -> 6b555c1a190100d81472ccbf1fd7aa38859f39559581e0e1305f19efc021162a [2025-04-30 10:15:49,357 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-30 10:15:49,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-30 10:15:49,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-30 10:15:49,371 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-30 10:15:49,372 INFO L274 PluginConnector]: CDTParser initialized [2025-04-30 10:15:49,373 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-floats-scientific-comp/loop5.i [2025-04-30 10:15:50,723 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fe0d2de3/b2253be8a00d45f09887be7b258f610c/FLAGc6c217bed [2025-04-30 10:15:50,980 INFO L389 CDTParser]: Found 1 translation units. [2025-04-30 10:15:50,983 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-floats-scientific-comp/loop5.i [2025-04-30 10:15:50,994 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fe0d2de3/b2253be8a00d45f09887be7b258f610c/FLAGc6c217bed [2025-04-30 10:15:51,724 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fe0d2de3/b2253be8a00d45f09887be7b258f610c [2025-04-30 10:15:51,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-30 10:15:51,727 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-30 10:15:51,727 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-30 10:15:51,727 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-30 10:15:51,730 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-30 10:15:51,731 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:15:51" (1/1) ... [2025-04-30 10:15:51,731 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7214f4f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:51, skipping insertion in model container [2025-04-30 10:15:51,731 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:15:51" (1/1) ... [2025-04-30 10:15:51,760 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-30 10:15:52,150 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.i[40788,40801] [2025-04-30 10:15:52,165 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:15:52,171 INFO L200 MainTranslator]: Completed pre-run [2025-04-30 10:15:52,219 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.i[40788,40801] [2025-04-30 10:15:52,226 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:15:52,310 INFO L204 MainTranslator]: Completed translation [2025-04-30 10:15:52,311 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:52 WrapperNode [2025-04-30 10:15:52,312 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-30 10:15:52,313 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-30 10:15:52,313 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-30 10:15:52,313 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-30 10:15:52,317 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:52" (1/1) ... [2025-04-30 10:15:52,331 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:52" (1/1) ... [2025-04-30 10:15:52,353 INFO L138 Inliner]: procedures = 452, calls = 18, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 70 [2025-04-30 10:15:52,354 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-30 10:15:52,355 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-30 10:15:52,355 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-30 10:15:52,356 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-30 10:15:52,361 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:52" (1/1) ... [2025-04-30 10:15:52,362 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:52" (1/1) ... [2025-04-30 10:15:52,368 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:52" (1/1) ... [2025-04-30 10:15:52,379 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2025-04-30 10:15:52,380 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:52" (1/1) ... [2025-04-30 10:15:52,380 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:52" (1/1) ... [2025-04-30 10:15:52,382 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:52" (1/1) ... [2025-04-30 10:15:52,382 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:52" (1/1) ... [2025-04-30 10:15:52,384 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:52" (1/1) ... [2025-04-30 10:15:52,385 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:52" (1/1) ... [2025-04-30 10:15:52,385 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:52" (1/1) ... [2025-04-30 10:15:52,387 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-30 10:15:52,388 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-30 10:15:52,388 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-30 10:15:52,388 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-30 10:15:52,389 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:52" (1/1) ... [2025-04-30 10:15:52,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:15:52,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:15:52,413 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) [2025-04-30 10:15:52,416 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 [2025-04-30 10:15:52,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-30 10:15:52,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-30 10:15:52,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-30 10:15:52,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-30 10:15:52,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-30 10:15:52,502 INFO L234 CfgBuilder]: Building ICFG [2025-04-30 10:15:52,503 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-30 10:15:52,577 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2025-04-30 10:15:52,578 INFO L283 CfgBuilder]: Performing block encoding [2025-04-30 10:15:52,584 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-30 10:15:52,585 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-04-30 10:15:52,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:15:52 BoogieIcfgContainer [2025-04-30 10:15:52,585 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-30 10:15:52,587 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-30 10:15:52,587 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-30 10:15:52,590 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-30 10:15:52,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.04 10:15:51" (1/3) ... [2025-04-30 10:15:52,591 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b9e507e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:15:52, skipping insertion in model container [2025-04-30 10:15:52,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:52" (2/3) ... [2025-04-30 10:15:52,592 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b9e507e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:15:52, skipping insertion in model container [2025-04-30 10:15:52,593 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:15:52" (3/3) ... [2025-04-30 10:15:52,594 INFO L128 eAbstractionObserver]: Analyzing ICFG loop5.i [2025-04-30 10:15:52,605 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-30 10:15:52,606 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG loop5.i that has 1 procedures, 17 locations, 21 edges, 1 initial locations, 1 loop locations, and 1 error locations. [2025-04-30 10:15:52,646 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-30 10:15:52,654 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;@69ac85fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-30 10:15:52,656 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-04-30 10:15:52,659 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) [2025-04-30 10:15:52,662 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-04-30 10:15:52,662 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:15:52,663 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:15:52,663 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-30 10:15:52,667 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:15:52,667 INFO L85 PathProgramCache]: Analyzing trace with hash 620393963, now seen corresponding path program 1 times [2025-04-30 10:15:52,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:15:52,673 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919098178] [2025-04-30 10:15:52,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:15:52,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:15:52,741 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-30 10:15:52,750 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-30 10:15:52,751 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:15:52,751 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:15:52,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:15:52,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:15:52,790 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919098178] [2025-04-30 10:15:52,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919098178] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:15:52,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:15:52,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:15:52,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591189422] [2025-04-30 10:15:52,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:15:52,794 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-04-30 10:15:52,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:15:52,805 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-04-30 10:15:52,805 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-30 10:15:52,807 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) [2025-04-30 10:15:52,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:15:52,816 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2025-04-30 10:15:52,817 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-30 10:15:52,818 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 [2025-04-30 10:15:52,818 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:15:52,821 INFO L225 Difference]: With dead ends: 32 [2025-04-30 10:15:52,821 INFO L226 Difference]: Without dead ends: 13 [2025-04-30 10:15:52,823 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 [2025-04-30 10:15:52,824 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 [2025-04-30 10:15:52,825 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] [2025-04-30 10:15:52,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2025-04-30 10:15:52,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2025-04-30 10:15:52,839 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) [2025-04-30 10:15:52,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2025-04-30 10:15:52,842 INFO L79 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 8 [2025-04-30 10:15:52,842 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:15:52,842 INFO L485 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2025-04-30 10:15:52,842 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) [2025-04-30 10:15:52,843 INFO L278 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2025-04-30 10:15:52,843 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-04-30 10:15:52,843 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:15:52,843 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:15:52,844 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-30 10:15:52,844 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-30 10:15:52,844 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:15:52,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1325873706, now seen corresponding path program 1 times [2025-04-30 10:15:52,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:15:52,845 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711374913] [2025-04-30 10:15:52,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:15:52,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:15:52,861 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-30 10:15:52,884 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-30 10:15:52,885 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:15:52,885 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-30 10:15:52,885 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-30 10:15:52,893 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-30 10:15:52,906 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-30 10:15:52,907 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:15:52,907 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-30 10:15:52,923 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-30 10:15:52,923 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-30 10:15:52,924 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-04-30 10:15:52,926 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-30 10:15:52,928 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-04-30 10:15:52,951 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-30 10:15:52,953 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.04 10:15:52 BoogieIcfgContainer [2025-04-30 10:15:52,953 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-30 10:15:52,954 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-30 10:15:52,954 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-30 10:15:52,954 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-30 10:15:52,955 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:15:52" (3/4) ... [2025-04-30 10:15:52,957 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-04-30 10:15:52,957 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-30 10:15:52,958 INFO L158 Benchmark]: Toolchain (without parser) took 1231.36ms. Allocated memory is still 142.6MB. Free memory was 110.6MB in the beginning and 93.8MB in the end (delta: 16.7MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2025-04-30 10:15:52,958 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 226.5MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:15:52,959 INFO L158 Benchmark]: CACSL2BoogieTranslator took 584.63ms. Allocated memory is still 142.6MB. Free memory was 110.6MB in the beginning and 63.2MB in the end (delta: 47.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-04-30 10:15:52,959 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.39ms. Allocated memory is still 142.6MB. Free memory was 63.2MB in the beginning and 60.6MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:15:52,959 INFO L158 Benchmark]: Boogie Preprocessor took 32.14ms. Allocated memory is still 142.6MB. Free memory was 60.6MB in the beginning and 59.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:15:52,960 INFO L158 Benchmark]: RCFGBuilder took 196.98ms. Allocated memory is still 142.6MB. Free memory was 59.0MB in the beginning and 47.6MB in the end (delta: 11.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-30 10:15:52,960 INFO L158 Benchmark]: TraceAbstraction took 366.79ms. Allocated memory is still 142.6MB. Free memory was 47.0MB in the beginning and 93.8MB in the end (delta: -46.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:15:52,960 INFO L158 Benchmark]: Witness Printer took 3.56ms. Allocated memory is still 142.6MB. Free memory was 93.8MB in the beginning and 93.8MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:15:52,961 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 226.5MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 584.63ms. Allocated memory is still 142.6MB. Free memory was 110.6MB in the beginning and 63.2MB in the end (delta: 47.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.39ms. Allocated memory is still 142.6MB. Free memory was 63.2MB in the beginning and 60.6MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.14ms. Allocated memory is still 142.6MB. Free memory was 60.6MB in the beginning and 59.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 196.98ms. Allocated memory is still 142.6MB. Free memory was 59.0MB in the beginning and 47.6MB in the end (delta: 11.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 366.79ms. Allocated memory is still 142.6MB. Free memory was 47.0MB in the beginning and 93.8MB in the end (delta: -46.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.56ms. Allocated memory is still 142.6MB. Free memory was 93.8MB in the beginning and 93.8MB in the end (delta: 27.1kB). 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: 991]: 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 1002, overapproximation of someBinaryArithmeticDOUBLEoperation at line 1027, overapproximation of someBinaryDOUBLEComparisonOperation at line 1001, overapproximation of someBinaryDOUBLEComparisonOperation at line 1035, overapproximation of someBinaryArithmeticFLOAToperation at line 1015, overapproximation of someBinaryArithmeticFLOAToperation at line 1009. Possible FailurePath: [L994] float pi = 3.14159 ; VAL [pi=314159/100000] [L1013] int x ; [L1014] float angleInRadian ; [L1015] float phaseLag = pi/2, phaseLead=pi ; [L1016] double sum1=0.0, sum2 = 0.0 ; [L1017] int temp; [L1018] double count=0.0 ; VAL [pi=314159/100000, sum1=0, sum2=0] [L1024] x = __VERIFIER_nondet_int() [L1025] CALL assume_abort_if_not(x > -180 && x < 180) [L989] COND FALSE !(!cond) VAL [pi=314159/100000] [L1025] RET assume_abort_if_not(x > -180 && x < 180) [L1026] CALL, EXPR radianMeasure(x) [L1009] return (degrees * (pi/180)) ; VAL [pi=314159/100000] [L1026] RET, EXPR radianMeasure(x) [L1026] angleInRadian = radianMeasure(x) [L1027] sum2 = sum2 + sin(angleInRadian+2*phaseLead) [L1028] sum1 = sum1 + cos(angleInRadian+3*phaseLag) [L1030] temp = __VERIFIER_nondet_int() [L1031] count++ VAL [pi=314159/100000, temp=0] [L1032] COND TRUE temp == 0 VAL [pi=314159/100000] [L1035] CALL, EXPR diff(sum1,sum2) [L1001] COND TRUE x1 > x2 [L1002] return (x1-x2) ; VAL [pi=314159/100000] [L1035] RET, EXPR diff(sum1,sum2) [L1035] CALL __VERIFIER_assert(diff(sum1,sum2) <= count*2) [L991] COND TRUE !(cond) VAL [pi=314159/100000] [L991] 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: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 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 [2025-04-30 10:15:52,978 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 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.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6b555c1a190100d81472ccbf1fd7aa38859f39559581e0e1305f19efc021162a --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-30 10:15:54,764 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-30 10:15:54,828 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-04-30 10:15:54,832 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-30 10:15:54,832 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-30 10:15:54,857 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-30 10:15:54,859 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-30 10:15:54,859 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-30 10:15:54,859 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-30 10:15:54,859 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-30 10:15:54,859 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-30 10:15:54,859 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-30 10:15:54,860 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-30 10:15:54,860 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-30 10:15:54,860 INFO L153 SettingsManager]: * Use SBE=true [2025-04-30 10:15:54,861 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-30 10:15:54,861 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-30 10:15:54,861 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-30 10:15:54,861 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-30 10:15:54,861 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-30 10:15:54,861 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-30 10:15:54,861 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-30 10:15:54,861 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-30 10:15:54,861 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-04-30 10:15:54,861 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-04-30 10:15:54,862 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-04-30 10:15:54,862 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-30 10:15:54,862 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-30 10:15:54,863 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-30 10:15:54,863 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-30 10:15:54,863 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-30 10:15:54,863 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:15:54,863 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:15:54,863 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:15:54,863 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:15:54,863 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-30 10:15:54,863 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:15:54,863 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:15:54,863 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:15:54,863 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:15:54,863 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-30 10:15:54,863 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-30 10:15:54,863 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-30 10:15:54,863 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-30 10:15:54,863 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-04-30 10:15:54,863 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-04-30 10:15:54,863 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-30 10:15:54,863 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-30 10:15:54,863 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-30 10:15:54,863 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 -> 6b555c1a190100d81472ccbf1fd7aa38859f39559581e0e1305f19efc021162a [2025-04-30 10:15:55,110 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-30 10:15:55,118 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-30 10:15:55,121 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-30 10:15:55,122 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-30 10:15:55,124 INFO L274 PluginConnector]: CDTParser initialized [2025-04-30 10:15:55,125 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-floats-scientific-comp/loop5.i [2025-04-30 10:15:56,516 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83a58dc8f/8d4571bc1b554cc0acda328570045651/FLAG994b74e96 [2025-04-30 10:15:56,718 INFO L389 CDTParser]: Found 1 translation units. [2025-04-30 10:15:56,721 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-floats-scientific-comp/loop5.i [2025-04-30 10:15:56,734 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83a58dc8f/8d4571bc1b554cc0acda328570045651/FLAG994b74e96 [2025-04-30 10:15:57,567 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83a58dc8f/8d4571bc1b554cc0acda328570045651 [2025-04-30 10:15:57,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-30 10:15:57,572 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-30 10:15:57,574 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-30 10:15:57,574 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-30 10:15:57,578 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-30 10:15:57,580 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:15:57" (1/1) ... [2025-04-30 10:15:57,581 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4092bd95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:57, skipping insertion in model container [2025-04-30 10:15:57,581 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:15:57" (1/1) ... [2025-04-30 10:15:57,627 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-30 10:15:57,992 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.i[40788,40801] [2025-04-30 10:15:58,011 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:15:58,024 INFO L200 MainTranslator]: Completed pre-run [2025-04-30 10:15:58,063 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.i[40788,40801] [2025-04-30 10:15:58,068 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:15:58,162 INFO L204 MainTranslator]: Completed translation [2025-04-30 10:15:58,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:58 WrapperNode [2025-04-30 10:15:58,164 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-30 10:15:58,165 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-30 10:15:58,165 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-30 10:15:58,165 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-30 10:15:58,171 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:58" (1/1) ... [2025-04-30 10:15:58,203 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:58" (1/1) ... [2025-04-30 10:15:58,228 INFO L138 Inliner]: procedures = 453, calls = 18, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 69 [2025-04-30 10:15:58,231 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-30 10:15:58,231 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-30 10:15:58,231 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-30 10:15:58,231 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-30 10:15:58,237 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:58" (1/1) ... [2025-04-30 10:15:58,238 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:58" (1/1) ... [2025-04-30 10:15:58,240 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:58" (1/1) ... [2025-04-30 10:15:58,259 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2025-04-30 10:15:58,260 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:58" (1/1) ... [2025-04-30 10:15:58,260 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:58" (1/1) ... [2025-04-30 10:15:58,265 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:58" (1/1) ... [2025-04-30 10:15:58,269 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:58" (1/1) ... [2025-04-30 10:15:58,272 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:58" (1/1) ... [2025-04-30 10:15:58,274 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:58" (1/1) ... [2025-04-30 10:15:58,278 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:58" (1/1) ... [2025-04-30 10:15:58,282 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-30 10:15:58,284 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-30 10:15:58,284 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-30 10:15:58,284 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-30 10:15:58,285 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:58" (1/1) ... [2025-04-30 10:15:58,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:15:58,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:15:58,335 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) [2025-04-30 10:15:58,340 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 [2025-04-30 10:15:58,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-04-30 10:15:58,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-04-30 10:15:58,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-30 10:15:58,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-30 10:15:58,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-30 10:15:58,421 INFO L234 CfgBuilder]: Building ICFG [2025-04-30 10:15:58,422 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-30 10:16:04,712 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2025-04-30 10:16:04,713 INFO L283 CfgBuilder]: Performing block encoding [2025-04-30 10:16:04,718 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-30 10:16:04,718 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-04-30 10:16:04,718 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:16:04 BoogieIcfgContainer [2025-04-30 10:16:04,718 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-30 10:16:04,720 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-30 10:16:04,720 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-30 10:16:04,723 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-30 10:16:04,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.04 10:15:57" (1/3) ... [2025-04-30 10:16:04,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44d0d58f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:16:04, skipping insertion in model container [2025-04-30 10:16:04,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:58" (2/3) ... [2025-04-30 10:16:04,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44d0d58f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:16:04, skipping insertion in model container [2025-04-30 10:16:04,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:16:04" (3/3) ... [2025-04-30 10:16:04,725 INFO L128 eAbstractionObserver]: Analyzing ICFG loop5.i [2025-04-30 10:16:04,735 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-30 10:16:04,736 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG loop5.i that has 1 procedures, 17 locations, 21 edges, 1 initial locations, 1 loop locations, and 1 error locations. [2025-04-30 10:16:04,773 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-30 10:16:04,782 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;@220d9a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-30 10:16:04,782 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-04-30 10:16:04,786 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) [2025-04-30 10:16:04,789 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-04-30 10:16:04,789 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:16:04,789 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:16:04,790 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-30 10:16:04,793 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:16:04,793 INFO L85 PathProgramCache]: Analyzing trace with hash 620393963, now seen corresponding path program 1 times [2025-04-30 10:16:04,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-30 10:16:04,800 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [649539157] [2025-04-30 10:16:04,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:16:04,801 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 [2025-04-30 10:16:04,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-04-30 10:16:04,803 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) [2025-04-30 10:16:04,805 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 [2025-04-30 10:16:04,838 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-30 10:16:04,997 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-30 10:16:04,998 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:16:04,998 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:16:05,008 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-04-30 10:16:05,011 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-30 10:16:05,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:16:05,028 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-30 10:16:05,028 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-04-30 10:16:05,029 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [649539157] [2025-04-30 10:16:05,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [649539157] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:16:05,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:16:05,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:16:05,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846851526] [2025-04-30 10:16:05,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:16:05,034 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-04-30 10:16:05,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-04-30 10:16:05,048 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-04-30 10:16:05,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-30 10:16:05,050 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) [2025-04-30 10:16:05,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:16:05,060 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2025-04-30 10:16:05,061 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-30 10:16:05,062 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 [2025-04-30 10:16:05,063 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:16:05,069 INFO L225 Difference]: With dead ends: 32 [2025-04-30 10:16:05,069 INFO L226 Difference]: Without dead ends: 13 [2025-04-30 10:16:05,071 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 [2025-04-30 10:16:05,075 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 [2025-04-30 10:16:05,075 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] [2025-04-30 10:16:05,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2025-04-30 10:16:05,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2025-04-30 10:16:05,090 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) [2025-04-30 10:16:05,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2025-04-30 10:16:05,092 INFO L79 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 8 [2025-04-30 10:16:05,092 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:16:05,093 INFO L485 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2025-04-30 10:16:05,093 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) [2025-04-30 10:16:05,093 INFO L278 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2025-04-30 10:16:05,093 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-04-30 10:16:05,093 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:16:05,093 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:16:05,102 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 [2025-04-30 10:16:05,298 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 [2025-04-30 10:16:05,298 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-30 10:16:05,299 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:16:05,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1325873706, now seen corresponding path program 1 times [2025-04-30 10:16:05,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-30 10:16:05,299 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [116163149] [2025-04-30 10:16:05,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:16:05,300 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 [2025-04-30 10:16:05,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-04-30 10:16:05,302 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) [2025-04-30 10:16:05,303 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 [2025-04-30 10:16:05,337 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-30 10:16:05,751 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-30 10:16:05,751 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:16:05,751 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-30 10:16:05,751 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-30 10:16:05,794 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-30 10:16:06,195 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-30 10:16:06,196 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:16:06,196 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-30 10:16:06,230 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-04-30 10:16:06,230 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-30 10:16:06,231 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-04-30 10:16:06,255 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 [2025-04-30 10:16:06,436 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 [2025-04-30 10:16:06,438 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-04-30 10:16:06,464 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-30 10:16:06,466 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.04 10:16:06 BoogieIcfgContainer [2025-04-30 10:16:06,467 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-30 10:16:06,467 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-30 10:16:06,468 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-30 10:16:06,468 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-30 10:16:06,468 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:16:04" (3/4) ... [2025-04-30 10:16:06,470 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-04-30 10:16:06,470 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-30 10:16:06,471 INFO L158 Benchmark]: Toolchain (without parser) took 8899.92ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 57.9MB in the end (delta: 33.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2025-04-30 10:16:06,471 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 83.9MB. Free memory is still 61.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:16:06,472 INFO L158 Benchmark]: CACSL2BoogieTranslator took 590.79ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 43.0MB in the end (delta: 48.2MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-04-30 10:16:06,472 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.75ms. Allocated memory is still 117.4MB. Free memory was 42.7MB in the beginning and 40.0MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:16:06,472 INFO L158 Benchmark]: Boogie Preprocessor took 52.09ms. Allocated memory is still 117.4MB. Free memory was 40.0MB in the beginning and 38.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:16:06,473 INFO L158 Benchmark]: RCFGBuilder took 6434.45ms. Allocated memory is still 117.4MB. Free memory was 38.1MB in the beginning and 80.2MB in the end (delta: -42.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2025-04-30 10:16:06,473 INFO L158 Benchmark]: TraceAbstraction took 1746.86ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 58.0MB in the end (delta: 21.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-30 10:16:06,473 INFO L158 Benchmark]: Witness Printer took 2.95ms. Allocated memory is still 117.4MB. Free memory was 58.0MB in the beginning and 57.9MB in the end (delta: 114.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:16:06,474 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 83.9MB. Free memory is still 61.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 590.79ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 43.0MB in the end (delta: 48.2MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.75ms. Allocated memory is still 117.4MB. Free memory was 42.7MB in the beginning and 40.0MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 52.09ms. Allocated memory is still 117.4MB. Free memory was 40.0MB in the beginning and 38.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 6434.45ms. Allocated memory is still 117.4MB. Free memory was 38.1MB in the beginning and 80.2MB in the end (delta: -42.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1746.86ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 58.0MB in the end (delta: 21.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 2.95ms. Allocated memory is still 117.4MB. Free memory was 58.0MB in the beginning and 57.9MB in the end (delta: 114.6kB). 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: 991]: 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 1028, overapproximation of sin at line 1027. Possible FailurePath: [L994] float pi = 3.14159 ; VAL [pi=3.141590118408203] [L1013] int x ; [L1014] float angleInRadian ; [L1015] float phaseLag = pi/2, phaseLead=pi ; [L1016] double sum1=0.0, sum2 = 0.0 ; [L1017] int temp; [L1018] double count=0.0 ; VAL [count=0.0, pi=3.141590118408203, sum1=0.0, sum2=0.0] [L1024] x = __VERIFIER_nondet_int() [L1025] CALL assume_abort_if_not(x > -180 && x < 180) [L989] COND FALSE !(!cond) VAL [pi=3.141590118408203] [L1025] RET assume_abort_if_not(x > -180 && x < 180) [L1026] CALL, EXPR radianMeasure(x) [L1009] return (degrees * (pi/180)) ; VAL [\result=0.0, pi=3.141590118408203] [L1026] RET, EXPR radianMeasure(x) [L1026] angleInRadian = radianMeasure(x) [L1027] sum2 = sum2 + sin(angleInRadian+2*phaseLead) [L1028] sum1 = sum1 + cos(angleInRadian+3*phaseLag) [L1030] temp = __VERIFIER_nondet_int() [L1031] count++ VAL [count=1.0, pi=3.141590118408203, sum1=0.0, sum2=-26815615859885194000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L1032] COND TRUE temp == 0 VAL [count=1.0, pi=3.141590118408203, sum1=0.0, sum2=-26815615859885194000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L1035] CALL, EXPR diff(sum1,sum2) [L1001] COND TRUE x1 > x2 [L1002] return (x1-x2) ; VAL [\result=26815615859885194000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, pi=3.141590118408203] [L1035] RET, EXPR diff(sum1,sum2) [L1035] CALL __VERIFIER_assert(diff(sum1,sum2) <= count*2) [L991] COND TRUE !(cond) VAL [pi=3.141590118408203] [L991] 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: 1.7s, 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, 0.6s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 37 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 [2025-04-30 10:16:06,503 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