./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/square_2+soft_float_4-2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_1.5.800.v20200727-1323.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_4-2a.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 af68db482217344707737f8e87f1bf38c34023f3266d60519ba723388f89d51c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 16:22:49,369 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 16:22:49,472 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 16:22:49,478 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 16:22:49,481 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 16:22:49,514 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 16:22:49,515 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 16:22:49,516 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 16:22:49,517 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 16:22:49,518 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 16:22:49,519 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 16:22:49,519 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 16:22:49,519 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 16:22:49,522 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 16:22:49,522 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 16:22:49,522 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 16:22:49,523 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 16:22:49,523 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 16:22:49,523 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 16:22:49,523 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 16:22:49,523 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 16:22:49,524 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 16:22:49,527 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 16:22:49,527 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 16:22:49,528 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 16:22:49,528 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 16:22:49,528 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 16:22:49,528 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 16:22:49,528 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 16:22:49,529 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 16:22:49,529 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 16:22:49,529 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 16:22:49,529 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 16:22:49,529 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 16:22:49,530 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 16:22:49,530 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 16:22:49,530 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 16:22:49,530 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 16:22:49,531 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 16:22:49,531 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 16:22:49,531 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 16:22:49,532 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 16:22:49,532 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af68db482217344707737f8e87f1bf38c34023f3266d60519ba723388f89d51c [2024-11-18 16:22:49,788 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 16:22:49,814 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 16:22:49,818 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 16:22:49,819 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 16:22:49,820 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 16:22:49,821 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_2+soft_float_4-2a.c.cil.c [2024-11-18 16:22:51,268 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 16:22:51,512 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 16:22:51,515 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_2+soft_float_4-2a.c.cil.c [2024-11-18 16:22:51,532 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f83264e3/bf831d05492f4e1291fed4ab2daa97c0/FLAG03da10bd0 [2024-11-18 16:22:51,552 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f83264e3/bf831d05492f4e1291fed4ab2daa97c0 [2024-11-18 16:22:51,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 16:22:51,558 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 16:22:51,561 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 16:22:51,561 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 16:22:51,567 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 16:22:51,567 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:22:51" (1/1) ... [2024-11-18 16:22:51,568 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40c103ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:51, skipping insertion in model container [2024-11-18 16:22:51,570 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:22:51" (1/1) ... [2024-11-18 16:22:51,606 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 16:22:51,828 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_4-2a.c.cil.c[1997,2010] [2024-11-18 16:22:51,836 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_4-2a.c.cil.c[2391,2404] [2024-11-18 16:22:51,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 16:22:51,946 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 16:22:51,963 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_4-2a.c.cil.c[1997,2010] [2024-11-18 16:22:51,966 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_4-2a.c.cil.c[2391,2404] [2024-11-18 16:22:52,009 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 16:22:52,031 INFO L204 MainTranslator]: Completed translation [2024-11-18 16:22:52,032 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:52 WrapperNode [2024-11-18 16:22:52,032 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 16:22:52,034 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 16:22:52,034 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 16:22:52,035 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 16:22:52,042 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:52" (1/1) ... [2024-11-18 16:22:52,055 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:52" (1/1) ... [2024-11-18 16:22:52,085 INFO L138 Inliner]: procedures = 27, calls = 19, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 77 [2024-11-18 16:22:52,087 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 16:22:52,088 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 16:22:52,088 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 16:22:52,088 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 16:22:52,099 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:52" (1/1) ... [2024-11-18 16:22:52,099 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:52" (1/1) ... [2024-11-18 16:22:52,102 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:52" (1/1) ... [2024-11-18 16:22:52,127 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]. [2024-11-18 16:22:52,127 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:52" (1/1) ... [2024-11-18 16:22:52,127 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:52" (1/1) ... [2024-11-18 16:22:52,143 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:52" (1/1) ... [2024-11-18 16:22:52,147 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:52" (1/1) ... [2024-11-18 16:22:52,151 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:52" (1/1) ... [2024-11-18 16:22:52,153 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:52" (1/1) ... [2024-11-18 16:22:52,157 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 16:22:52,158 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 16:22:52,159 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 16:22:52,159 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 16:22:52,162 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:52" (1/1) ... [2024-11-18 16:22:52,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 16:22:52,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 16:22:52,200 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) [2024-11-18 16:22:52,206 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 [2024-11-18 16:22:52,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 16:22:52,246 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-11-18 16:22:52,246 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-11-18 16:22:52,246 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2024-11-18 16:22:52,246 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2024-11-18 16:22:52,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 16:22:52,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 16:22:52,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 16:22:52,247 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-18 16:22:52,247 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-18 16:22:52,314 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 16:22:52,316 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 16:22:52,736 INFO L? ?]: Removed 60 outVars from TransFormulas that were not future-live. [2024-11-18 16:22:52,737 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 16:22:52,753 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 16:22:52,754 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-18 16:22:52,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:22:52 BoogieIcfgContainer [2024-11-18 16:22:52,756 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 16:22:52,758 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 16:22:52,758 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 16:22:52,762 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 16:22:52,762 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:22:51" (1/3) ... [2024-11-18 16:22:52,763 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cc383f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:22:52, skipping insertion in model container [2024-11-18 16:22:52,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:52" (2/3) ... [2024-11-18 16:22:52,764 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cc383f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:22:52, skipping insertion in model container [2024-11-18 16:22:52,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:22:52" (3/3) ... [2024-11-18 16:22:52,765 INFO L112 eAbstractionObserver]: Analyzing ICFG square_2+soft_float_4-2a.c.cil.c [2024-11-18 16:22:52,783 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 16:22:52,783 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-18 16:22:52,848 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 16:22:52,854 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;@4cd0c089, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 16:22:52,854 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-18 16:22:52,858 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 73 states have (on average 1.5068493150684932) internal successors, (110), 75 states have internal predecessors, (110), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-18 16:22:52,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-18 16:22:52,866 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:22:52,866 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:22:52,867 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:22:52,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:22:52,874 INFO L85 PathProgramCache]: Analyzing trace with hash 904226015, now seen corresponding path program 1 times [2024-11-18 16:22:52,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:22:52,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292799617] [2024-11-18 16:22:52,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:22:52,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:22:52,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:22:53,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:22:53,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:22:53,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292799617] [2024-11-18 16:22:53,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292799617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:22:53,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:22:53,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 16:22:53,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756872567] [2024-11-18 16:22:53,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:22:53,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 16:22:53,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:22:53,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 16:22:53,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 16:22:53,059 INFO L87 Difference]: Start difference. First operand has 87 states, 73 states have (on average 1.5068493150684932) internal successors, (110), 75 states have internal predecessors, (110), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 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) [2024-11-18 16:22:53,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:22:53,095 INFO L93 Difference]: Finished difference Result 169 states and 252 transitions. [2024-11-18 16:22:53,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 16:22:53,098 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 [2024-11-18 16:22:53,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:22:53,107 INFO L225 Difference]: With dead ends: 169 [2024-11-18 16:22:53,108 INFO L226 Difference]: Without dead ends: 80 [2024-11-18 16:22:53,112 INFO L431 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 [2024-11-18 16:22:53,118 INFO L432 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 [2024-11-18 16:22:53,119 INFO L433 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] [2024-11-18 16:22:53,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-18 16:22:53,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-11-18 16:22:53,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 67 states have (on average 1.3880597014925373) internal successors, (93), 69 states have internal predecessors, (93), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-18 16:22:53,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 108 transitions. [2024-11-18 16:22:53,171 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 108 transitions. Word has length 7 [2024-11-18 16:22:53,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:22:53,172 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 108 transitions. [2024-11-18 16:22:53,172 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) [2024-11-18 16:22:53,172 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 108 transitions. [2024-11-18 16:22:53,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-18 16:22:53,174 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:22:53,174 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:22:53,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 16:22:53,175 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:22:53,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:22:53,176 INFO L85 PathProgramCache]: Analyzing trace with hash 904285597, now seen corresponding path program 1 times [2024-11-18 16:22:53,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:22:53,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61177342] [2024-11-18 16:22:53,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:22:53,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:22:53,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 16:22:53,199 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-18 16:22:53,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 16:22:53,239 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-18 16:22:53,240 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-18 16:22:53,242 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-11-18 16:22:53,247 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-11-18 16:22:53,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 16:22:53,251 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-18 16:22:53,264 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 16:22:53,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 04:22:53 BoogieIcfgContainer [2024-11-18 16:22:53,268 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 16:22:53,269 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 16:22:53,269 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 16:22:53,269 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 16:22:53,269 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:22:52" (3/4) ... [2024-11-18 16:22:53,277 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-18 16:22:53,278 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 16:22:53,279 INFO L158 Benchmark]: Toolchain (without parser) took 1721.04ms. Allocated memory is still 155.2MB. Free memory was 104.0MB in the beginning and 68.9MB in the end (delta: 35.1MB). Peak memory consumption was 34.4MB. Max. memory is 16.1GB. [2024-11-18 16:22:53,279 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 96.5MB. Free memory is still 55.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 16:22:53,280 INFO L158 Benchmark]: CACSL2BoogieTranslator took 472.18ms. Allocated memory is still 155.2MB. Free memory was 104.0MB in the beginning and 122.0MB in the end (delta: -18.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-18 16:22:53,280 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.11ms. Allocated memory is still 155.2MB. Free memory was 121.3MB in the beginning and 119.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 16:22:53,282 INFO L158 Benchmark]: Boogie Preprocessor took 69.56ms. Allocated memory is still 155.2MB. Free memory was 119.9MB in the beginning and 117.1MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-18 16:22:53,282 INFO L158 Benchmark]: RCFGBuilder took 597.45ms. Allocated memory is still 155.2MB. Free memory was 117.1MB in the beginning and 95.4MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-18 16:22:53,282 INFO L158 Benchmark]: TraceAbstraction took 510.48ms. Allocated memory is still 155.2MB. Free memory was 95.4MB in the beginning and 69.6MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-18 16:22:53,283 INFO L158 Benchmark]: Witness Printer took 9.48ms. Allocated memory is still 155.2MB. Free memory was 69.6MB in the beginning and 68.9MB in the end (delta: 736.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 16:22:53,288 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 96.5MB. Free memory is still 55.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 472.18ms. Allocated memory is still 155.2MB. Free memory was 104.0MB in the beginning and 122.0MB in the end (delta: -18.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.11ms. Allocated memory is still 155.2MB. Free memory was 121.3MB in the beginning and 119.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 69.56ms. Allocated memory is still 155.2MB. Free memory was 119.9MB in the beginning and 117.1MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 597.45ms. Allocated memory is still 155.2MB. Free memory was 117.1MB in the beginning and 95.4MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 510.48ms. Allocated memory is still 155.2MB. Free memory was 95.4MB in the beginning and 69.6MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 9.48ms. Allocated memory is still 155.2MB. Free memory was 69.6MB in the beginning and 68.9MB in the end (delta: 736.2kB). Peak memory consumption was 2.1MB. 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 47, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L310] COND TRUE __VERIFIER_nondet_int() [L311] 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: 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 4 procedures, 87 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 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, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-18 16:22:53,323 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_1.5.800.v20200727-1323.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_4-2a.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 af68db482217344707737f8e87f1bf38c34023f3266d60519ba723388f89d51c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 16:22:55,593 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 16:22:55,678 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-18 16:22:55,684 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 16:22:55,685 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 16:22:55,717 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 16:22:55,717 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 16:22:55,719 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 16:22:55,720 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 16:22:55,720 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 16:22:55,721 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 16:22:55,721 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 16:22:55,721 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 16:22:55,722 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 16:22:55,724 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 16:22:55,724 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 16:22:55,725 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 16:22:55,727 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 16:22:55,727 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 16:22:55,728 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 16:22:55,728 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 16:22:55,731 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 16:22:55,732 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 16:22:55,732 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-18 16:22:55,732 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-18 16:22:55,732 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 16:22:55,733 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-18 16:22:55,733 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 16:22:55,733 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 16:22:55,734 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 16:22:55,734 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 16:22:55,734 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 16:22:55,734 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 16:22:55,734 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 16:22:55,735 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 16:22:55,735 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 16:22:55,735 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 16:22:55,736 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 16:22:55,736 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-18 16:22:55,736 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-18 16:22:55,736 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 16:22:55,737 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 16:22:55,738 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 16:22:55,738 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 16:22:55,738 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af68db482217344707737f8e87f1bf38c34023f3266d60519ba723388f89d51c [2024-11-18 16:22:56,058 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 16:22:56,083 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 16:22:56,087 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 16:22:56,088 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 16:22:56,089 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 16:22:56,090 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_2+soft_float_4-2a.c.cil.c [2024-11-18 16:22:57,718 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 16:22:57,998 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 16:22:57,999 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_2+soft_float_4-2a.c.cil.c [2024-11-18 16:22:58,014 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75aa00bd1/eba88297e8764e4d9be7ab6e9080d6f7/FLAG87a30bd13 [2024-11-18 16:22:58,033 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75aa00bd1/eba88297e8764e4d9be7ab6e9080d6f7 [2024-11-18 16:22:58,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 16:22:58,038 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 16:22:58,040 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 16:22:58,041 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 16:22:58,047 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 16:22:58,048 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:22:58" (1/1) ... [2024-11-18 16:22:58,049 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@219c8e33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:58, skipping insertion in model container [2024-11-18 16:22:58,049 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:22:58" (1/1) ... [2024-11-18 16:22:58,078 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 16:22:58,287 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_4-2a.c.cil.c[1997,2010] [2024-11-18 16:22:58,294 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_4-2a.c.cil.c[2391,2404] [2024-11-18 16:22:58,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 16:22:58,373 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 16:22:58,392 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_4-2a.c.cil.c[1997,2010] [2024-11-18 16:22:58,396 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_4-2a.c.cil.c[2391,2404] [2024-11-18 16:22:58,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 16:22:58,468 INFO L204 MainTranslator]: Completed translation [2024-11-18 16:22:58,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:58 WrapperNode [2024-11-18 16:22:58,469 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 16:22:58,470 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 16:22:58,471 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 16:22:58,471 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 16:22:58,478 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:58" (1/1) ... [2024-11-18 16:22:58,493 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:58" (1/1) ... [2024-11-18 16:22:58,525 INFO L138 Inliner]: procedures = 28, calls = 19, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 73 [2024-11-18 16:22:58,526 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 16:22:58,526 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 16:22:58,527 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 16:22:58,527 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 16:22:58,538 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:58" (1/1) ... [2024-11-18 16:22:58,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:58" (1/1) ... [2024-11-18 16:22:58,542 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:58" (1/1) ... [2024-11-18 16:22:58,562 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]. [2024-11-18 16:22:58,563 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:58" (1/1) ... [2024-11-18 16:22:58,563 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:58" (1/1) ... [2024-11-18 16:22:58,574 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:58" (1/1) ... [2024-11-18 16:22:58,577 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:58" (1/1) ... [2024-11-18 16:22:58,579 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:58" (1/1) ... [2024-11-18 16:22:58,581 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:58" (1/1) ... [2024-11-18 16:22:58,584 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 16:22:58,585 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 16:22:58,585 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 16:22:58,585 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 16:22:58,586 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:58" (1/1) ... [2024-11-18 16:22:58,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 16:22:58,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 16:22:58,629 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) [2024-11-18 16:22:58,632 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 [2024-11-18 16:22:58,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 16:22:58,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-18 16:22:58,685 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-11-18 16:22:58,685 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-11-18 16:22:58,685 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2024-11-18 16:22:58,685 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2024-11-18 16:22:58,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 16:22:58,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 16:22:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-18 16:22:58,686 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-18 16:22:58,775 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 16:22:58,777 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 16:23:03,511 INFO L? ?]: Removed 44 outVars from TransFormulas that were not future-live. [2024-11-18 16:23:03,511 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 16:23:03,523 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 16:23:03,524 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-18 16:23:03,524 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:23:03 BoogieIcfgContainer [2024-11-18 16:23:03,524 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 16:23:03,526 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 16:23:03,526 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 16:23:03,530 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 16:23:03,530 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:22:58" (1/3) ... [2024-11-18 16:23:03,531 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5188302b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:23:03, skipping insertion in model container [2024-11-18 16:23:03,532 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:22:58" (2/3) ... [2024-11-18 16:23:03,532 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5188302b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:23:03, skipping insertion in model container [2024-11-18 16:23:03,533 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:23:03" (3/3) ... [2024-11-18 16:23:03,534 INFO L112 eAbstractionObserver]: Analyzing ICFG square_2+soft_float_4-2a.c.cil.c [2024-11-18 16:23:03,552 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 16:23:03,553 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-18 16:23:03,626 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 16:23:03,635 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;@7d673104, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 16:23:03,635 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-18 16:23:03,639 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 49 states have (on average 1.489795918367347) internal successors, (73), 51 states have internal predecessors, (73), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-18 16:23:03,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-18 16:23:03,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:23:03,646 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:23:03,646 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:23:03,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:23:03,651 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2024-11-18 16:23:03,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 16:23:03,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [836299865] [2024-11-18 16:23:03,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:23:03,663 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 [2024-11-18 16:23:03,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 16:23:03,666 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) [2024-11-18 16:23:03,668 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 [2024-11-18 16:23:04,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:23:04,052 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 16:23:04,055 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 16:23:04,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:23:04,069 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 16:23:04,070 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 16:23:04,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [836299865] [2024-11-18 16:23:04,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [836299865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:23:04,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:23:04,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 16:23:04,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463305822] [2024-11-18 16:23:04,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:23:04,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 16:23:04,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 16:23:04,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 16:23:04,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 16:23:04,101 INFO L87 Difference]: Start difference. First operand has 63 states, 49 states have (on average 1.489795918367347) internal successors, (73), 51 states have internal predecessors, (73), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 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) [2024-11-18 16:23:04,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:23:04,132 INFO L93 Difference]: Finished difference Result 121 states and 178 transitions. [2024-11-18 16:23:04,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 16:23:04,135 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 [2024-11-18 16:23:04,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:23:04,152 INFO L225 Difference]: With dead ends: 121 [2024-11-18 16:23:04,153 INFO L226 Difference]: Without dead ends: 56 [2024-11-18 16:23:04,160 INFO L431 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 [2024-11-18 16:23:04,165 INFO L432 NwaCegarLoop]: 81 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, 81 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 [2024-11-18 16:23:04,167 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:23:04,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-18 16:23:04,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2024-11-18 16:23:04,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 45 states have internal predecessors, (58), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-18 16:23:04,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 73 transitions. [2024-11-18 16:23:04,215 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 73 transitions. Word has length 7 [2024-11-18 16:23:04,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:23:04,217 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 73 transitions. [2024-11-18 16:23:04,217 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) [2024-11-18 16:23:04,217 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 73 transitions. [2024-11-18 16:23:04,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-18 16:23:04,217 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:23:04,218 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:23:04,238 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-18 16:23:04,420 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 [2024-11-18 16:23:04,421 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:23:04,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:23:04,422 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2024-11-18 16:23:04,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 16:23:04,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1437232530] [2024-11-18 16:23:04,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:23:04,423 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 [2024-11-18 16:23:04,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 16:23:04,426 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) [2024-11-18 16:23:04,427 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 [2024-11-18 16:23:16,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 16:23:16,451 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-18 16:23:25,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 16:23:25,524 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-11-18 16:23:25,525 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-18 16:23:25,526 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-11-18 16:23:25,528 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-11-18 16:23:25,553 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 [2024-11-18 16:23:25,729 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 [2024-11-18 16:23:25,732 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-18 16:23:25,749 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 16:23:25,754 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 04:23:25 BoogieIcfgContainer [2024-11-18 16:23:25,755 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 16:23:25,756 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 16:23:25,756 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 16:23:25,757 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 16:23:25,757 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:23:03" (3/4) ... [2024-11-18 16:23:25,758 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-18 16:23:25,791 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-18 16:23:25,792 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 16:23:25,792 INFO L158 Benchmark]: Toolchain (without parser) took 27754.43ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 43.6MB in the beginning and 47.2MB in the end (delta: -3.7MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2024-11-18 16:23:25,793 INFO L158 Benchmark]: CDTParser took 2.04ms. Allocated memory is still 50.3MB. Free memory is still 27.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 16:23:25,793 INFO L158 Benchmark]: CACSL2BoogieTranslator took 429.25ms. Allocated memory is still 67.1MB. Free memory was 43.3MB in the beginning and 45.9MB in the end (delta: -2.6MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2024-11-18 16:23:25,794 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.44ms. Allocated memory is still 67.1MB. Free memory was 45.9MB in the beginning and 44.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 16:23:25,794 INFO L158 Benchmark]: Boogie Preprocessor took 57.43ms. Allocated memory is still 67.1MB. Free memory was 44.1MB in the beginning and 41.5MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-18 16:23:25,795 INFO L158 Benchmark]: RCFGBuilder took 4939.82ms. Allocated memory is still 67.1MB. Free memory was 41.5MB in the beginning and 41.5MB in the end (delta: -28.9kB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2024-11-18 16:23:25,795 INFO L158 Benchmark]: TraceAbstraction took 22228.58ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 40.9MB in the beginning and 48.8MB in the end (delta: -8.0MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2024-11-18 16:23:25,795 INFO L158 Benchmark]: Witness Printer took 36.22ms. Allocated memory is still 81.8MB. Free memory was 48.8MB in the beginning and 47.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 16:23:25,798 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.04ms. Allocated memory is still 50.3MB. Free memory is still 27.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 429.25ms. Allocated memory is still 67.1MB. Free memory was 43.3MB in the beginning and 45.9MB in the end (delta: -2.6MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.44ms. Allocated memory is still 67.1MB. Free memory was 45.9MB in the beginning and 44.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 57.43ms. Allocated memory is still 67.1MB. Free memory was 44.1MB in the beginning and 41.5MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 4939.82ms. Allocated memory is still 67.1MB. Free memory was 41.5MB in the beginning and 41.5MB in the end (delta: -28.9kB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. * TraceAbstraction took 22228.58ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 40.9MB in the beginning and 48.8MB in the end (delta: -8.0MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * Witness Printer took 36.22ms. Allocated memory is still 81.8MB. Free memory was 48.8MB in the beginning and 47.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. 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: [L310] COND TRUE __VERIFIER_nondet_int() [L311] 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=1.3981382846832275] [L47] COND TRUE !(result >= 0.0f && result < 1.398f) [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 4 procedures, 63 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 22.1s, 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, 81 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, 81 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=63occurred 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, 12.3s 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 RESULT: Ultimate proved your program to be incorrect! [2024-11-18 16:23:25,855 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