./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/square_3+soft_float_1-2a.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_3+soft_float_1-2a.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 266a58712a9e3b3c15bc4c8023b36b45db38173e85b035c92eb7b44ae9d55916 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 16:25:14,198 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 16:25:14,255 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-03 16:25:14,261 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 16:25:14,261 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 16:25:14,286 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 16:25:14,286 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 16:25:14,286 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 16:25:14,287 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 16:25:14,287 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 16:25:14,287 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 16:25:14,287 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 16:25:14,287 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 16:25:14,287 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 16:25:14,287 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 16:25:14,287 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 16:25:14,287 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 16:25:14,287 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 16:25:14,287 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-03 16:25:14,287 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 16:25:14,289 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 16:25:14,289 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 16:25:14,289 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 16:25:14,289 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 16:25:14,289 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 16:25:14,289 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 16:25:14,289 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 16:25:14,289 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 16:25:14,289 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 16:25:14,289 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 16:25:14,290 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 16:25:14,290 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 16:25:14,290 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 16:25:14,290 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 16:25:14,290 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 16:25:14,290 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 16:25:14,290 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 16:25:14,290 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-03 16:25:14,290 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-03 16:25:14,290 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 16:25:14,290 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 16:25:14,290 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 16:25:14,290 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 16:25:14,290 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 -> 266a58712a9e3b3c15bc4c8023b36b45db38173e85b035c92eb7b44ae9d55916 [2025-03-03 16:25:14,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 16:25:14,512 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 16:25:14,513 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 16:25:14,514 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 16:25:14,514 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 16:25:14,516 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_3+soft_float_1-2a.c.cil.c [2025-03-03 16:25:15,639 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e99116484/ca1eacc5ed824584bdfa3301888466d9/FLAG42110c230 [2025-03-03 16:25:15,875 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 16:25:15,876 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_1-2a.c.cil.c [2025-03-03 16:25:15,885 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e99116484/ca1eacc5ed824584bdfa3301888466d9/FLAG42110c230 [2025-03-03 16:25:15,899 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e99116484/ca1eacc5ed824584bdfa3301888466d9 [2025-03-03 16:25:15,901 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 16:25:15,903 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 16:25:15,904 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 16:25:15,904 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 16:25:15,907 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 16:25:15,907 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 04:25:15" (1/1) ... [2025-03-03 16:25:15,908 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11d50431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:15, skipping insertion in model container [2025-03-03 16:25:15,908 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 04:25:15" (1/1) ... [2025-03-03 16:25:15,928 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 16:25:16,039 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_3+soft_float_1-2a.c.cil.c[1999,2012] [2025-03-03 16:25:16,045 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_3+soft_float_1-2a.c.cil.c[2393,2406] [2025-03-03 16:25:16,087 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 16:25:16,095 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 16:25:16,106 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_3+soft_float_1-2a.c.cil.c[1999,2012] [2025-03-03 16:25:16,107 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_3+soft_float_1-2a.c.cil.c[2393,2406] [2025-03-03 16:25:16,136 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 16:25:16,152 INFO L204 MainTranslator]: Completed translation [2025-03-03 16:25:16,153 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:16 WrapperNode [2025-03-03 16:25:16,153 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 16:25:16,154 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 16:25:16,154 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 16:25:16,154 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 16:25:16,158 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:16" (1/1) ... [2025-03-03 16:25:16,163 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:16" (1/1) ... [2025-03-03 16:25:16,177 INFO L138 Inliner]: procedures = 27, calls = 20, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 211 [2025-03-03 16:25:16,178 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 16:25:16,178 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 16:25:16,178 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 16:25:16,178 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 16:25:16,184 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:16" (1/1) ... [2025-03-03 16:25:16,184 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:16" (1/1) ... [2025-03-03 16:25:16,186 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:16" (1/1) ... [2025-03-03 16:25:16,202 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 16:25:16,202 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:16" (1/1) ... [2025-03-03 16:25:16,202 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:16" (1/1) ... [2025-03-03 16:25:16,210 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:16" (1/1) ... [2025-03-03 16:25:16,214 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:16" (1/1) ... [2025-03-03 16:25:16,215 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:16" (1/1) ... [2025-03-03 16:25:16,216 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:16" (1/1) ... [2025-03-03 16:25:16,217 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 16:25:16,221 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 16:25:16,221 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 16:25:16,221 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 16:25:16,222 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:16" (1/1) ... [2025-03-03 16:25:16,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 16:25:16,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 16:25:16,253 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 16:25:16,256 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 16:25:16,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 16:25:16,273 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2025-03-03 16:25:16,273 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2025-03-03 16:25:16,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-03 16:25:16,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 16:25:16,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 16:25:16,274 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-03 16:25:16,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-03 16:25:16,332 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 16:25:16,334 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 16:25:16,666 INFO L? ?]: Removed 81 outVars from TransFormulas that were not future-live. [2025-03-03 16:25:16,666 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 16:25:16,685 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 16:25:16,687 INFO L336 CfgBuilder]: Removed 1 assume(true) statements. [2025-03-03 16:25:16,687 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 04:25:16 BoogieIcfgContainer [2025-03-03 16:25:16,687 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 16:25:16,689 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 16:25:16,689 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 16:25:16,692 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 16:25:16,693 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 04:25:15" (1/3) ... [2025-03-03 16:25:16,693 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c300eaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 04:25:16, skipping insertion in model container [2025-03-03 16:25:16,693 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:16" (2/3) ... [2025-03-03 16:25:16,693 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c300eaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 04:25:16, skipping insertion in model container [2025-03-03 16:25:16,693 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 04:25:16" (3/3) ... [2025-03-03 16:25:16,694 INFO L128 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_1-2a.c.cil.c [2025-03-03 16:25:16,704 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 16:25:16,706 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG square_3+soft_float_1-2a.c.cil.c that has 3 procedures, 105 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2025-03-03 16:25:16,744 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 16:25:16,751 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;@2de2509e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 16:25:16,751 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-03 16:25:16,754 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 92 states have (on average 1.5543478260869565) internal successors, (143), 96 states have internal predecessors, (143), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-03 16:25:16,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-03 16:25:16,758 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:25:16,759 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-03 16:25:16,759 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:25:16,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:25:16,764 INFO L85 PathProgramCache]: Analyzing trace with hash 425753875, now seen corresponding path program 1 times [2025-03-03 16:25:16,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:25:16,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814197745] [2025-03-03 16:25:16,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:25:16,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:25:16,821 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-03 16:25:16,830 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-03 16:25:16,832 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:25:16,832 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:25:16,864 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 16:25:16,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:25:16,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814197745] [2025-03-03 16:25:16,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814197745] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:25:16,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:25:16,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-03 16:25:16,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849059830] [2025-03-03 16:25:16,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:25:16,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-03 16:25:16,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:25:16,882 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-03 16:25:16,882 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 16:25:16,885 INFO L87 Difference]: Start difference. First operand has 105 states, 92 states have (on average 1.5543478260869565) internal successors, (143), 96 states have internal predecessors, (143), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) 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 16:25:16,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:25:16,924 INFO L93 Difference]: Finished difference Result 205 states and 318 transitions. [2025-03-03 16:25:16,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-03 16:25:16,927 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 16:25:16,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:25:16,932 INFO L225 Difference]: With dead ends: 205 [2025-03-03 16:25:16,932 INFO L226 Difference]: Without dead ends: 98 [2025-03-03 16:25:16,937 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 16:25:16,940 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 16:25:16,941 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 16:25:16,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2025-03-03 16:25:16,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2025-03-03 16:25:16,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 86 states have (on average 1.4767441860465116) internal successors, (127), 89 states have internal predecessors, (127), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-03 16:25:16,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 142 transitions. [2025-03-03 16:25:16,978 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 142 transitions. Word has length 7 [2025-03-03 16:25:16,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:25:16,979 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 142 transitions. [2025-03-03 16:25:16,979 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 16:25:16,979 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 142 transitions. [2025-03-03 16:25:16,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-03 16:25:16,980 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:25:16,980 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-03 16:25:16,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-03 16:25:16,980 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:25:16,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:25:16,981 INFO L85 PathProgramCache]: Analyzing trace with hash 425783666, now seen corresponding path program 1 times [2025-03-03 16:25:16,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:25:16,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674214892] [2025-03-03 16:25:16,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:25:16,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:25:16,987 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-03 16:25:16,998 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-03 16:25:16,999 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:25:16,999 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-03 16:25:16,999 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-03 16:25:17,002 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-03 16:25:17,006 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-03 16:25:17,007 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:25:17,007 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-03 16:25:17,016 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-03 16:25:17,016 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-03 16:25:17,017 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2025-03-03 16:25:17,019 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2025-03-03 16:25:17,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-03 16:25:17,021 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-03 16:25:17,027 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-03 16:25:17,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 04:25:17 BoogieIcfgContainer [2025-03-03 16:25:17,030 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-03 16:25:17,030 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-03 16:25:17,030 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-03 16:25:17,030 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-03 16:25:17,031 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 04:25:16" (3/4) ... [2025-03-03 16:25:17,032 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-03 16:25:17,033 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-03 16:25:17,034 INFO L158 Benchmark]: Toolchain (without parser) took 1130.78ms. Allocated memory is still 142.6MB. Free memory was 108.8MB in the beginning and 41.3MB in the end (delta: 67.5MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2025-03-03 16:25:17,034 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 126.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 16:25:17,035 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.61ms. Allocated memory is still 142.6MB. Free memory was 108.8MB in the beginning and 93.8MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-03 16:25:17,035 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.16ms. Allocated memory is still 142.6MB. Free memory was 93.8MB in the beginning and 91.6MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 16:25:17,036 INFO L158 Benchmark]: Boogie Preprocessor took 42.25ms. Allocated memory is still 142.6MB. Free memory was 91.6MB in the beginning and 89.4MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 16:25:17,036 INFO L158 Benchmark]: IcfgBuilder took 466.09ms. Allocated memory is still 142.6MB. Free memory was 89.4MB in the beginning and 63.6MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-03 16:25:17,036 INFO L158 Benchmark]: TraceAbstraction took 340.74ms. Allocated memory is still 142.6MB. Free memory was 63.6MB in the beginning and 41.3MB in the end (delta: 22.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-03 16:25:17,036 INFO L158 Benchmark]: Witness Printer took 2.86ms. Allocated memory is still 142.6MB. Free memory is still 41.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 16:25:17,037 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 126.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 249.61ms. Allocated memory is still 142.6MB. Free memory was 108.8MB in the beginning and 93.8MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.16ms. Allocated memory is still 142.6MB. Free memory was 93.8MB in the beginning and 91.6MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.25ms. Allocated memory is still 142.6MB. Free memory was 91.6MB in the beginning and 89.4MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 466.09ms. Allocated memory is still 142.6MB. Free memory was 89.4MB in the beginning and 63.6MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 340.74ms. Allocated memory is still 142.6MB. Free memory was 63.6MB in the beginning and 41.3MB in the end (delta: 22.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 2.86ms. Allocated memory is still 142.6MB. Free memory is still 41.3MB. 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: [L403] COND TRUE __VERIFIER_nondet_int() [L404] 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 < 1.39843f) [L48] reach_error() - UnprovableResult [Line: 61]: 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, 105 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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, 144 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 144 mSDtfsCounter, 7 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=105occurred 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 16:25:17,051 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_3+soft_float_1-2a.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 266a58712a9e3b3c15bc4c8023b36b45db38173e85b035c92eb7b44ae9d55916 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 16:25:18,846 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 16:25:18,934 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-03 16:25:18,943 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 16:25:18,943 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 16:25:18,963 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 16:25:18,964 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 16:25:18,967 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 16:25:18,968 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 16:25:18,968 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 16:25:18,968 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 16:25:18,968 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 16:25:18,968 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 16:25:18,968 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 16:25:18,968 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 16:25:18,968 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 16:25:18,968 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 16:25:18,968 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 16:25:18,968 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 16:25:18,968 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 16:25:18,968 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 16:25:18,968 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 16:25:18,969 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 16:25:18,969 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-03 16:25:18,969 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-03 16:25:18,969 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-03 16:25:18,969 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 16:25:18,969 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 16:25:18,969 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 16:25:18,969 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 16:25:18,969 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 16:25:18,969 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 16:25:18,969 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 16:25:18,969 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 16:25:18,969 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 16:25:18,969 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 16:25:18,969 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 16:25:18,969 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 16:25:18,969 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 16:25:18,969 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-03 16:25:18,969 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-03 16:25:18,969 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 16:25:18,969 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 16:25:18,969 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 16:25:18,970 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 16:25:18,970 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 -> 266a58712a9e3b3c15bc4c8023b36b45db38173e85b035c92eb7b44ae9d55916 [2025-03-03 16:25:19,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 16:25:19,204 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 16:25:19,206 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 16:25:19,206 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 16:25:19,207 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 16:25:19,207 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_3+soft_float_1-2a.c.cil.c [2025-03-03 16:25:20,365 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5aed80f56/2a2f73455e394d14bc2e53e147edebab/FLAG2a530d099 [2025-03-03 16:25:20,575 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 16:25:20,575 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_1-2a.c.cil.c [2025-03-03 16:25:20,586 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5aed80f56/2a2f73455e394d14bc2e53e147edebab/FLAG2a530d099 [2025-03-03 16:25:20,930 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5aed80f56/2a2f73455e394d14bc2e53e147edebab [2025-03-03 16:25:20,932 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 16:25:20,933 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 16:25:20,933 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 16:25:20,933 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 16:25:20,936 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 16:25:20,937 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 04:25:20" (1/1) ... [2025-03-03 16:25:20,937 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67fade63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:20, skipping insertion in model container [2025-03-03 16:25:20,937 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 04:25:20" (1/1) ... [2025-03-03 16:25:20,953 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 16:25:21,055 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_3+soft_float_1-2a.c.cil.c[1999,2012] [2025-03-03 16:25:21,062 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_3+soft_float_1-2a.c.cil.c[2393,2406] [2025-03-03 16:25:21,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 16:25:21,131 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 16:25:21,143 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_3+soft_float_1-2a.c.cil.c[1999,2012] [2025-03-03 16:25:21,149 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_3+soft_float_1-2a.c.cil.c[2393,2406] [2025-03-03 16:25:21,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 16:25:21,184 INFO L204 MainTranslator]: Completed translation [2025-03-03 16:25:21,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:21 WrapperNode [2025-03-03 16:25:21,186 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 16:25:21,187 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 16:25:21,187 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 16:25:21,187 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 16:25:21,192 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:21" (1/1) ... [2025-03-03 16:25:21,204 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:21" (1/1) ... [2025-03-03 16:25:21,225 INFO L138 Inliner]: procedures = 28, calls = 20, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 168 [2025-03-03 16:25:21,228 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 16:25:21,229 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 16:25:21,229 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 16:25:21,229 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 16:25:21,236 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:21" (1/1) ... [2025-03-03 16:25:21,236 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:21" (1/1) ... [2025-03-03 16:25:21,240 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:21" (1/1) ... [2025-03-03 16:25:21,249 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 16:25:21,250 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:21" (1/1) ... [2025-03-03 16:25:21,250 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:21" (1/1) ... [2025-03-03 16:25:21,257 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:21" (1/1) ... [2025-03-03 16:25:21,258 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:21" (1/1) ... [2025-03-03 16:25:21,259 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:21" (1/1) ... [2025-03-03 16:25:21,260 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:21" (1/1) ... [2025-03-03 16:25:21,262 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 16:25:21,263 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 16:25:21,263 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 16:25:21,263 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 16:25:21,265 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:21" (1/1) ... [2025-03-03 16:25:21,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 16:25:21,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 16:25:21,289 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 16:25:21,291 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 16:25:21,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 16:25:21,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-03 16:25:21,310 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2025-03-03 16:25:21,310 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2025-03-03 16:25:21,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 16:25:21,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 16:25:21,310 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-03 16:25:21,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-03 16:25:21,362 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 16:25:21,363 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 16:25:26,219 INFO L? ?]: Removed 65 outVars from TransFormulas that were not future-live. [2025-03-03 16:25:26,220 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 16:25:26,226 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 16:25:26,226 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 16:25:26,226 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 04:25:26 BoogieIcfgContainer [2025-03-03 16:25:26,227 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 16:25:26,228 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 16:25:26,228 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 16:25:26,231 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 16:25:26,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 04:25:20" (1/3) ... [2025-03-03 16:25:26,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@756e6cd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 04:25:26, skipping insertion in model container [2025-03-03 16:25:26,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:25:21" (2/3) ... [2025-03-03 16:25:26,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@756e6cd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 04:25:26, skipping insertion in model container [2025-03-03 16:25:26,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 04:25:26" (3/3) ... [2025-03-03 16:25:26,233 INFO L128 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_1-2a.c.cil.c [2025-03-03 16:25:26,242 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 16:25:26,243 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG square_3+soft_float_1-2a.c.cil.c that has 3 procedures, 81 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2025-03-03 16:25:26,275 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 16:25:26,284 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;@e0856fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 16:25:26,284 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-03 16:25:26,288 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 68 states have (on average 1.5588235294117647) internal successors, (106), 72 states have internal predecessors, (106), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-03 16:25:26,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-03 16:25:26,291 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:25:26,291 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-03 16:25:26,292 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:25:26,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:25:26,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1241791034, now seen corresponding path program 1 times [2025-03-03 16:25:26,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-03 16:25:26,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1022355061] [2025-03-03 16:25:26,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:25:26,301 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 16:25:26,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-03 16:25:26,303 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 16:25:26,304 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 16:25:26,333 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-03 16:25:26,645 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-03 16:25:26,646 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:25:26,646 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:25:26,660 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-03 16:25:26,662 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 16:25:26,672 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 16:25:26,672 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 16:25:26,673 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-03 16:25:26,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1022355061] [2025-03-03 16:25:26,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1022355061] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:25:26,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:25:26,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-03 16:25:26,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145869179] [2025-03-03 16:25:26,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:25:26,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-03 16:25:26,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-03 16:25:26,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-03 16:25:26,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 16:25:26,689 INFO L87 Difference]: Start difference. First operand has 81 states, 68 states have (on average 1.5588235294117647) internal successors, (106), 72 states have internal predecessors, (106), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) 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 16:25:26,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:25:26,706 INFO L93 Difference]: Finished difference Result 157 states and 244 transitions. [2025-03-03 16:25:26,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-03 16:25:26,708 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 16:25:26,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:25:26,715 INFO L225 Difference]: With dead ends: 157 [2025-03-03 16:25:26,715 INFO L226 Difference]: Without dead ends: 74 [2025-03-03 16:25:26,717 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 16:25:26,720 INFO L435 NwaCegarLoop]: 116 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, 116 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 16:25:26,722 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 16:25:26,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2025-03-03 16:25:26,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2025-03-03 16:25:26,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 62 states have (on average 1.4838709677419355) internal successors, (92), 65 states have internal predecessors, (92), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-03 16:25:26,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 107 transitions. [2025-03-03 16:25:26,754 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 107 transitions. Word has length 7 [2025-03-03 16:25:26,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:25:26,754 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 107 transitions. [2025-03-03 16:25:26,755 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 16:25:26,755 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 107 transitions. [2025-03-03 16:25:26,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-03 16:25:26,756 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:25:26,756 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-03 16:25:26,769 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 16:25:26,956 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 16:25:26,957 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:25:26,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:25:26,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1241761243, now seen corresponding path program 1 times [2025-03-03 16:25:26,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-03 16:25:26,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [143934883] [2025-03-03 16:25:26,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:25:26,959 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 16:25:26,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-03 16:25:26,960 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 16:25:26,961 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 16:25:26,977 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-03 16:25:42,593 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-03 16:25:42,593 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:25:42,593 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-03 16:25:42,593 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-03 16:25:42,623 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-03 16:26:54,383 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-03 16:26:54,383 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:26:54,383 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-03 16:26:54,436 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-03-03 16:26:54,436 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-03 16:26:54,437 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2025-03-03 16:26:54,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2025-03-03 16:26:54,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2025-03-03 16:26:54,639 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 16:26:54,641 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-03 16:26:54,653 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-03 16:26:54,657 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 04:26:54 BoogieIcfgContainer [2025-03-03 16:26:54,657 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-03 16:26:54,658 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-03 16:26:54,658 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-03 16:26:54,658 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-03 16:26:54,658 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 04:25:26" (3/4) ... [2025-03-03 16:26:54,659 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-03-03 16:26:54,687 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 7. [2025-03-03 16:26:54,720 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-03 16:26:54,721 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-03 16:26:54,721 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-03 16:26:54,722 INFO L158 Benchmark]: Toolchain (without parser) took 93788.90ms. Allocated memory is still 83.9MB. Free memory was 59.1MB in the beginning and 32.0MB in the end (delta: 27.0MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. [2025-03-03 16:26:54,723 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 83.9MB. Free memory was 62.0MB in the beginning and 61.9MB in the end (delta: 33.7kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 16:26:54,723 INFO L158 Benchmark]: CACSL2BoogieTranslator took 253.06ms. Allocated memory is still 83.9MB. Free memory was 59.1MB in the beginning and 43.8MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-03 16:26:54,724 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.26ms. Allocated memory is still 83.9MB. Free memory was 43.8MB in the beginning and 41.9MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 16:26:54,724 INFO L158 Benchmark]: Boogie Preprocessor took 33.30ms. Allocated memory is still 83.9MB. Free memory was 41.9MB in the beginning and 40.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 16:26:54,724 INFO L158 Benchmark]: IcfgBuilder took 4964.02ms. Allocated memory is still 83.9MB. Free memory was 39.8MB in the beginning and 58.3MB in the end (delta: -18.6MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. [2025-03-03 16:26:54,725 INFO L158 Benchmark]: TraceAbstraction took 88428.67ms. Allocated memory is still 83.9MB. Free memory was 57.3MB in the beginning and 37.1MB in the end (delta: 20.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-03 16:26:54,725 INFO L158 Benchmark]: Witness Printer took 63.36ms. Allocated memory is still 83.9MB. Free memory was 37.1MB in the beginning and 32.0MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 16:26:54,726 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 83.9MB. Free memory was 62.0MB in the beginning and 61.9MB in the end (delta: 33.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 253.06ms. Allocated memory is still 83.9MB. Free memory was 59.1MB in the beginning and 43.8MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.26ms. Allocated memory is still 83.9MB. Free memory was 43.8MB in the beginning and 41.9MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.30ms. Allocated memory is still 83.9MB. Free memory was 41.9MB in the beginning and 40.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 4964.02ms. Allocated memory is still 83.9MB. Free memory was 39.8MB in the beginning and 58.3MB in the end (delta: -18.6MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. * TraceAbstraction took 88428.67ms. Allocated memory is still 83.9MB. Free memory was 57.3MB in the beginning and 37.1MB in the end (delta: 20.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 63.36ms. Allocated memory is still 83.9MB. Free memory was 37.1MB in the beginning and 32.0MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. 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: [L403] COND TRUE __VERIFIER_nondet_int() [L404] 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=1.3984342813491821] [L47] COND TRUE !(result >= 0.0f && result < 1.39843f) [L48] reach_error() - UnprovableResult [Line: 61]: 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, 81 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 88.4s, 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, 116 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, 116 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=81occurred 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, 15.9s 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 16:26:54,777 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