./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.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 c065a55f68f899d0f20fc5e1ef687a000c7e9a3454841ed8a67112aa421d143f --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 16:25:12,251 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 16:25:12,309 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-03 16:25:12,314 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 16:25:12,314 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 16:25:12,335 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 16:25:12,336 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 16:25:12,337 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 16:25:12,337 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 16:25:12,337 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 16:25:12,338 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 16:25:12,338 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 16:25:12,338 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 16:25:12,338 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 16:25:12,338 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 16:25:12,338 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 16:25:12,339 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 16:25:12,339 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 16:25:12,339 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-03 16:25:12,339 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 16:25:12,339 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 16:25:12,339 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 16:25:12,339 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 16:25:12,339 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 16:25:12,339 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 16:25:12,340 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 16:25:12,340 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 16:25:12,340 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 16:25:12,340 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 16:25:12,340 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 16:25:12,340 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 16:25:12,340 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 16:25:12,340 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 16:25:12,340 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 16:25:12,341 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 16:25:12,341 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 16:25:12,341 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 16:25:12,341 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-03 16:25:12,341 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-03 16:25:12,341 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 16:25:12,341 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 16:25:12,341 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 16:25:12,341 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 16:25:12,341 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 -> c065a55f68f899d0f20fc5e1ef687a000c7e9a3454841ed8a67112aa421d143f [2025-03-03 16:25:12,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 16:25:12,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 16:25:12,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 16:25:12,568 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 16:25:12,568 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 16:25:12,569 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c [2025-03-03 16:25:13,705 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b8bd7031/6e2308cf110e4bc68c562720e1145165/FLAG74f675752 [2025-03-03 16:25:13,959 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 16:25:13,963 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c [2025-03-03 16:25:13,973 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b8bd7031/6e2308cf110e4bc68c562720e1145165/FLAG74f675752 [2025-03-03 16:25:14,292 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b8bd7031/6e2308cf110e4bc68c562720e1145165 [2025-03-03 16:25:14,294 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 16:25:14,296 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 16:25:14,297 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 16:25:14,297 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 16:25:14,300 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 16:25:14,301 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 04:25:14" (1/1) ... [2025-03-03 16:25:14,303 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@547dfb53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:14, skipping insertion in model container [2025-03-03 16:25:14,303 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 04:25:14" (1/1) ... [2025-03-03 16:25:14,320 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 16:25:14,437 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c[1997,2010] [2025-03-03 16:25:14,443 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c[2366,2379] [2025-03-03 16:25:14,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 16:25:14,483 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 16:25:14,492 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c[1997,2010] [2025-03-03 16:25:14,493 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c[2366,2379] [2025-03-03 16:25:14,518 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 16:25:14,527 INFO L204 MainTranslator]: Completed translation [2025-03-03 16:25:14,527 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:14 WrapperNode [2025-03-03 16:25:14,527 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 16:25:14,528 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 16:25:14,528 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 16:25:14,528 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 16:25:14,532 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:14" (1/1) ... [2025-03-03 16:25:14,537 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:14" (1/1) ... [2025-03-03 16:25:14,550 INFO L138 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 168 [2025-03-03 16:25:14,550 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 16:25:14,551 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 16:25:14,551 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 16:25:14,551 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 16:25:14,558 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:14" (1/1) ... [2025-03-03 16:25:14,558 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:14" (1/1) ... [2025-03-03 16:25:14,561 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:14" (1/1) ... [2025-03-03 16:25:14,569 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-03 16:25:14,570 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:14" (1/1) ... [2025-03-03 16:25:14,570 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:14" (1/1) ... [2025-03-03 16:25:14,573 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:14" (1/1) ... [2025-03-03 16:25:14,574 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:14" (1/1) ... [2025-03-03 16:25:14,575 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:14" (1/1) ... [2025-03-03 16:25:14,575 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:14" (1/1) ... [2025-03-03 16:25:14,577 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 16:25:14,577 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 16:25:14,577 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 16:25:14,578 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 16:25:14,578 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:14" (1/1) ... [2025-03-03 16:25:14,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 16:25:14,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 16:25:14,602 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-03 16:25:14,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-03 16:25:14,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 16:25:14,619 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2025-03-03 16:25:14,619 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2025-03-03 16:25:14,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-03 16:25:14,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 16:25:14,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 16:25:14,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-03 16:25:14,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-03 16:25:14,671 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 16:25:14,673 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 16:25:14,968 INFO L? ?]: Removed 70 outVars from TransFormulas that were not future-live. [2025-03-03 16:25:14,968 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 16:25:14,982 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 16:25:14,982 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 16:25:14,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 04:25:14 BoogieIcfgContainer [2025-03-03 16:25:14,982 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 16:25:14,985 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 16:25:14,985 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 16:25:14,989 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 16:25:14,989 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 04:25:14" (1/3) ... [2025-03-03 16:25:14,989 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27ef5888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 04:25:14, skipping insertion in model container [2025-03-03 16:25:14,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:14" (2/3) ... [2025-03-03 16:25:14,990 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27ef5888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 04:25:14, skipping insertion in model container [2025-03-03 16:25:14,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 04:25:14" (3/3) ... [2025-03-03 16:25:14,991 INFO L128 eAbstractionObserver]: Analyzing ICFG square_2+soft_float_5a.c.cil.c [2025-03-03 16:25:15,004 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 16:25:15,005 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG square_2+soft_float_5a.c.cil.c that has 3 procedures, 84 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2025-03-03 16:25:15,044 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 16:25:15,053 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@47f4683f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 16:25:15,053 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-03 16:25:15,056 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 74 states have (on average 1.5135135135135136) internal successors, (112), 77 states have internal predecessors, (112), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-03 16:25:15,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-03 16:25:15,060 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:25:15,060 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-03 16:25:15,060 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:25:15,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:25:15,063 INFO L85 PathProgramCache]: Analyzing trace with hash -657991341, now seen corresponding path program 1 times [2025-03-03 16:25:15,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:25:15,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872020536] [2025-03-03 16:25:15,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:25:15,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:25:15,113 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-03 16:25:15,123 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-03 16:25:15,123 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:25:15,123 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:25:15,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 16:25:15,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:25:15,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872020536] [2025-03-03 16:25:15,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872020536] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:25:15,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:25:15,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-03 16:25:15,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505374007] [2025-03-03 16:25:15,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:25:15,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-03 16:25:15,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:25:15,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-03 16:25:15,169 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 16:25:15,171 INFO L87 Difference]: Start difference. First operand has 84 states, 74 states have (on average 1.5135135135135136) internal successors, (112), 77 states have internal predecessors, (112), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:25:15,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:25:15,199 INFO L93 Difference]: Finished difference Result 163 states and 241 transitions. [2025-03-03 16:25:15,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-03 16:25:15,200 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2025-03-03 16:25:15,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:25:15,205 INFO L225 Difference]: With dead ends: 163 [2025-03-03 16:25:15,205 INFO L226 Difference]: Without dead ends: 75 [2025-03-03 16:25:15,208 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 16:25:15,209 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 16:25:15,210 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 16:25:15,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2025-03-03 16:25:15,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2025-03-03 16:25:15,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 67 states have (on average 1.4179104477611941) internal successors, (95), 68 states have internal predecessors, (95), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-03 16:25:15,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 104 transitions. [2025-03-03 16:25:15,235 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 104 transitions. Word has length 7 [2025-03-03 16:25:15,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:25:15,235 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 104 transitions. [2025-03-03 16:25:15,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:25:15,235 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 104 transitions. [2025-03-03 16:25:15,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-03 16:25:15,235 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:25:15,235 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-03 16:25:15,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-03 16:25:15,236 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:25:15,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:25:15,236 INFO L85 PathProgramCache]: Analyzing trace with hash -657961550, now seen corresponding path program 1 times [2025-03-03 16:25:15,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:25:15,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820414344] [2025-03-03 16:25:15,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:25:15,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:25:15,244 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-03 16:25:15,251 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-03 16:25:15,251 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:25:15,251 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-03 16:25:15,251 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-03 16:25:15,252 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-03 16:25:15,257 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-03 16:25:15,257 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:25:15,257 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-03 16:25:15,266 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-03 16:25:15,267 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-03 16:25:15,268 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2025-03-03 16:25:15,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2025-03-03 16:25:15,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-03 16:25:15,271 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-03 16:25:15,279 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-03 16:25:15,283 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 04:25:15 BoogieIcfgContainer [2025-03-03 16:25:15,283 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-03 16:25:15,284 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-03 16:25:15,284 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-03 16:25:15,284 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-03 16:25:15,284 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 04:25:14" (3/4) ... [2025-03-03 16:25:15,286 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-03 16:25:15,286 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-03 16:25:15,287 INFO L158 Benchmark]: Toolchain (without parser) took 991.67ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 49.5MB in the end (delta: 62.7MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-03-03 16:25:15,287 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 16:25:15,288 INFO L158 Benchmark]: CACSL2BoogieTranslator took 230.91ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 97.9MB in the end (delta: 14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-03 16:25:15,288 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.26ms. Allocated memory is still 142.6MB. Free memory was 97.9MB in the beginning and 96.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 16:25:15,289 INFO L158 Benchmark]: Boogie Preprocessor took 26.24ms. Allocated memory is still 142.6MB. Free memory was 96.0MB in the beginning and 94.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 16:25:15,289 INFO L158 Benchmark]: IcfgBuilder took 405.09ms. Allocated memory is still 142.6MB. Free memory was 94.2MB in the beginning and 71.4MB in the end (delta: 22.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-03 16:25:15,289 INFO L158 Benchmark]: TraceAbstraction took 298.41ms. Allocated memory is still 142.6MB. Free memory was 70.9MB in the beginning and 50.0MB in the end (delta: 20.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-03 16:25:15,291 INFO L158 Benchmark]: Witness Printer took 2.82ms. Allocated memory is still 142.6MB. Free memory was 50.0MB in the beginning and 49.5MB in the end (delta: 460.3kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 16:25:15,292 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 230.91ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 97.9MB in the end (delta: 14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.26ms. Allocated memory is still 142.6MB. Free memory was 97.9MB in the beginning and 96.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.24ms. Allocated memory is still 142.6MB. Free memory was 96.0MB in the beginning and 94.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 405.09ms. Allocated memory is still 142.6MB. Free memory was 94.2MB in the beginning and 71.4MB in the end (delta: 22.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 298.41ms. Allocated memory is still 142.6MB. Free memory was 70.9MB in the beginning and 50.0MB in the end (delta: 20.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 2.82ms. Allocated memory is still 142.6MB. Free memory was 50.0MB in the beginning and 49.5MB in the end (delta: 460.3kB). 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: 48]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 40, overapproximation of someBinaryFLOATComparisonOperation at line 47, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L322] COND TRUE __VERIFIER_nondet_int() [L323] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; [L47] COND TRUE !(result >= 0.0f && result < 1.398f) [L48] reach_error() - UnprovableResult [Line: 60]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 84 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, 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, 109 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 109 mSDtfsCounter, 6 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=84occurred 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, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-03-03 16:25:15,306 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 ../sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.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 c065a55f68f899d0f20fc5e1ef687a000c7e9a3454841ed8a67112aa421d143f --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 16:25:17,122 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 16:25:17,219 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-03 16:25:17,224 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 16:25:17,225 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 16:25:17,245 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 16:25:17,246 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 16:25:17,247 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 16:25:17,247 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 16:25:17,247 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 16:25:17,247 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 16:25:17,248 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 16:25:17,248 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 16:25:17,248 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 16:25:17,248 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 16:25:17,249 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 16:25:17,249 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 16:25:17,249 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 16:25:17,249 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 16:25:17,249 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 16:25:17,249 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 16:25:17,249 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 16:25:17,250 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 16:25:17,250 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-03 16:25:17,250 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-03 16:25:17,250 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-03 16:25:17,250 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 16:25:17,250 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 16:25:17,250 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 16:25:17,250 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 16:25:17,251 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 16:25:17,251 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 16:25:17,251 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 16:25:17,251 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 16:25:17,251 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 16:25:17,251 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 16:25:17,251 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 16:25:17,252 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 16:25:17,252 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 16:25:17,252 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-03 16:25:17,252 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-03 16:25:17,252 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 16:25:17,252 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 16:25:17,252 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 16:25:17,252 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 16:25:17,252 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 -> c065a55f68f899d0f20fc5e1ef687a000c7e9a3454841ed8a67112aa421d143f [2025-03-03 16:25:17,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 16:25:17,501 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 16:25:17,503 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 16:25:17,504 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 16:25:17,504 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 16:25:17,505 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c [2025-03-03 16:25:18,714 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29335c558/1100ca11f0274ff8b4c9fb574dd9cabb/FLAG03113da20 [2025-03-03 16:25:18,892 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 16:25:18,894 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c [2025-03-03 16:25:18,901 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29335c558/1100ca11f0274ff8b4c9fb574dd9cabb/FLAG03113da20 [2025-03-03 16:25:18,916 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29335c558/1100ca11f0274ff8b4c9fb574dd9cabb [2025-03-03 16:25:18,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 16:25:18,920 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 16:25:18,921 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 16:25:18,921 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 16:25:18,925 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 16:25:18,926 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 04:25:18" (1/1) ... [2025-03-03 16:25:18,928 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1900a6f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:18, skipping insertion in model container [2025-03-03 16:25:18,928 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 04:25:18" (1/1) ... [2025-03-03 16:25:18,948 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 16:25:19,071 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c[1997,2010] [2025-03-03 16:25:19,077 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c[2366,2379] [2025-03-03 16:25:19,122 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 16:25:19,135 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 16:25:19,145 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c[1997,2010] [2025-03-03 16:25:19,150 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c[2366,2379] [2025-03-03 16:25:19,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 16:25:19,193 INFO L204 MainTranslator]: Completed translation [2025-03-03 16:25:19,194 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:19 WrapperNode [2025-03-03 16:25:19,194 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 16:25:19,196 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 16:25:19,196 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 16:25:19,196 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 16:25:19,200 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:19" (1/1) ... [2025-03-03 16:25:19,211 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:19" (1/1) ... [2025-03-03 16:25:19,233 INFO L138 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 132 [2025-03-03 16:25:19,235 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 16:25:19,235 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 16:25:19,235 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 16:25:19,236 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 16:25:19,242 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:19" (1/1) ... [2025-03-03 16:25:19,242 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:19" (1/1) ... [2025-03-03 16:25:19,246 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:19" (1/1) ... [2025-03-03 16:25:19,259 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-03 16:25:19,263 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:19" (1/1) ... [2025-03-03 16:25:19,263 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:19" (1/1) ... [2025-03-03 16:25:19,271 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:19" (1/1) ... [2025-03-03 16:25:19,272 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:19" (1/1) ... [2025-03-03 16:25:19,273 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:19" (1/1) ... [2025-03-03 16:25:19,274 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:19" (1/1) ... [2025-03-03 16:25:19,276 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 16:25:19,277 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 16:25:19,277 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 16:25:19,277 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 16:25:19,278 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:19" (1/1) ... [2025-03-03 16:25:19,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 16:25:19,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 16:25:19,313 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-03 16:25:19,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-03 16:25:19,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 16:25:19,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-03 16:25:19,336 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2025-03-03 16:25:19,336 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2025-03-03 16:25:19,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 16:25:19,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 16:25:19,337 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-03 16:25:19,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-03 16:25:19,393 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 16:25:19,395 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 16:25:24,077 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2025-03-03 16:25:24,077 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 16:25:24,086 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 16:25:24,086 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 16:25:24,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 04:25:24 BoogieIcfgContainer [2025-03-03 16:25:24,087 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 16:25:24,089 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 16:25:24,089 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 16:25:24,092 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 16:25:24,092 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 04:25:18" (1/3) ... [2025-03-03 16:25:24,092 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61c6f3a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 04:25:24, skipping insertion in model container [2025-03-03 16:25:24,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:19" (2/3) ... [2025-03-03 16:25:24,093 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61c6f3a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 04:25:24, skipping insertion in model container [2025-03-03 16:25:24,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 04:25:24" (3/3) ... [2025-03-03 16:25:24,094 INFO L128 eAbstractionObserver]: Analyzing ICFG square_2+soft_float_5a.c.cil.c [2025-03-03 16:25:24,103 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 16:25:24,104 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG square_2+soft_float_5a.c.cil.c that has 3 procedures, 61 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2025-03-03 16:25:24,143 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 16:25:24,153 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@9896a71, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 16:25:24,153 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-03 16:25:24,157 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 51 states have (on average 1.5098039215686274) internal successors, (77), 54 states have internal predecessors, (77), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-03 16:25:24,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-03 16:25:24,160 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:25:24,160 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-03 16:25:24,161 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:25:24,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:25:24,164 INFO L85 PathProgramCache]: Analyzing trace with hash 422862246, now seen corresponding path program 1 times [2025-03-03 16:25:24,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-03 16:25:24,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [125736658] [2025-03-03 16:25:24,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:25:24,170 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-03 16:25:24,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-03 16:25:24,173 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-03 16:25:24,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2025-03-03 16:25:24,204 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-03 16:25:24,508 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-03 16:25:24,508 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:25:24,508 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:25:24,521 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-03 16:25:24,523 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 16:25:24,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 16:25:24,534 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 16:25:24,535 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-03 16:25:24,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [125736658] [2025-03-03 16:25:24,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [125736658] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:25:24,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:25:24,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-03 16:25:24,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489804076] [2025-03-03 16:25:24,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:25:24,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-03 16:25:24,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-03 16:25:24,551 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-03 16:25:24,551 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 16:25:24,552 INFO L87 Difference]: Start difference. First operand has 61 states, 51 states have (on average 1.5098039215686274) internal successors, (77), 54 states have internal predecessors, (77), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:25:24,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:25:24,566 INFO L93 Difference]: Finished difference Result 117 states and 171 transitions. [2025-03-03 16:25:24,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-03 16:25:24,567 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2025-03-03 16:25:24,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:25:24,571 INFO L225 Difference]: With dead ends: 117 [2025-03-03 16:25:24,571 INFO L226 Difference]: Without dead ends: 52 [2025-03-03 16:25:24,573 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 16:25:24,574 INFO L435 NwaCegarLoop]: 82 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, 82 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 16:25:24,577 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 16:25:24,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2025-03-03 16:25:24,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2025-03-03 16:25:24,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 45 states have internal predecessors, (62), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-03 16:25:24,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2025-03-03 16:25:24,603 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 7 [2025-03-03 16:25:24,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:25:24,604 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2025-03-03 16:25:24,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:25:24,604 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2025-03-03 16:25:24,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-03 16:25:24,604 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:25:24,604 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-03 16:25:24,618 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2025-03-03 16:25:24,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-03 16:25:24,806 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:25:24,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:25:24,807 INFO L85 PathProgramCache]: Analyzing trace with hash 422892037, now seen corresponding path program 1 times [2025-03-03 16:25:24,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-03 16:25:24,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1445234426] [2025-03-03 16:25:24,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:25:24,807 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-03 16:25:24,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-03 16:25:24,809 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-03 16:25:24,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2025-03-03 16:25:24,827 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-03 16:26:03,190 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-03 16:26:03,191 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:26:03,191 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-03 16:26:03,191 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-03 16:26:03,231 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-03 16:26:17,773 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-03 16:26:17,774 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:26:17,774 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-03 16:26:17,814 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-03-03 16:26:17,814 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-03 16:26:17,816 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2025-03-03 16:26:17,817 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2025-03-03 16:26:17,841 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 [2025-03-03 16:26:18,017 WARN L453 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 [2025-03-03 16:26:18,020 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-03 16:26:18,030 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-03 16:26:18,031 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 04:26:18 BoogieIcfgContainer [2025-03-03 16:26:18,032 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-03 16:26:18,032 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-03 16:26:18,032 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-03 16:26:18,032 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-03 16:26:18,034 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 04:25:24" (3/4) ... [2025-03-03 16:26:18,034 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-03-03 16:26:18,064 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 7. [2025-03-03 16:26:18,097 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-03 16:26:18,097 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-03 16:26:18,098 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-03 16:26:18,098 INFO L158 Benchmark]: Toolchain (without parser) took 59178.06ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 83.6MB in the end (delta: 8.5MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2025-03-03 16:26:18,099 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 83.9MB. Free memory is still 62.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 16:26:18,099 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.13ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 77.3MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-03 16:26:18,099 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.22ms. Allocated memory is still 117.4MB. Free memory was 77.1MB in the beginning and 75.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 16:26:18,100 INFO L158 Benchmark]: Boogie Preprocessor took 40.78ms. Allocated memory is still 117.4MB. Free memory was 75.6MB in the beginning and 73.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 16:26:18,100 INFO L158 Benchmark]: IcfgBuilder took 4810.53ms. Allocated memory is still 117.4MB. Free memory was 73.7MB in the beginning and 55.5MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-03 16:26:18,100 INFO L158 Benchmark]: TraceAbstraction took 53942.79ms. Allocated memory is still 117.4MB. Free memory was 55.1MB in the beginning and 88.8MB in the end (delta: -33.7MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. [2025-03-03 16:26:18,100 INFO L158 Benchmark]: Witness Printer took 65.61ms. Allocated memory is still 117.4MB. Free memory was 88.8MB in the beginning and 83.6MB in the end (delta: 5.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 16:26:18,102 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 83.9MB. Free memory is still 62.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.13ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 77.3MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.22ms. Allocated memory is still 117.4MB. Free memory was 77.1MB in the beginning and 75.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 40.78ms. Allocated memory is still 117.4MB. Free memory was 75.6MB in the beginning and 73.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 4810.53ms. Allocated memory is still 117.4MB. Free memory was 73.7MB in the beginning and 55.5MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 53942.79ms. Allocated memory is still 117.4MB. Free memory was 55.1MB in the beginning and 88.8MB in the end (delta: -33.7MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. * Witness Printer took 65.61ms. Allocated memory is still 117.4MB. Free memory was 88.8MB in the beginning and 83.6MB in the end (delta: 5.2MB). 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 - CounterExampleResult [Line: 48]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L322] COND TRUE __VERIFIER_nondet_int() [L323] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [result=1.3984375] [L47] COND TRUE !(result >= 0.0f && result < 1.398f) [L48] reach_error() - UnprovableResult [Line: 60]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 61 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 53.9s, 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, 82 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, 82 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred 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, 38.7s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 20 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 proved your program to be incorrect! [2025-03-03 16:26:18,151 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE