./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_1+soft_float_1-2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_1+soft_float_1-2a.c.cil.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 2f3d0efaf33b93df425f185e68aa4bb5fd862b42784228ced2cb70c663695e18 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 05:07:43,656 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 05:07:43,714 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 05:07:43,718 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 05:07:43,718 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 05:07:43,733 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 05:07:43,734 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 05:07:43,734 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 05:07:43,734 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 05:07:43,735 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 05:07:43,735 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 05:07:43,735 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 05:07:43,736 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 05:07:43,736 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 05:07:43,736 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 05:07:43,737 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 05:07:43,737 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 05:07:43,737 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 05:07:43,737 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 05:07:43,738 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 05:07:43,738 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 05:07:43,738 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 05:07:43,739 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 05:07:43,739 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 05:07:43,739 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 05:07:43,740 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 05:07:43,740 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 05:07:43,740 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 05:07:43,740 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 05:07:43,741 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 05:07:43,741 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 05:07:43,741 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 05:07:43,741 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 05:07:43,742 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 05:07:43,742 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 05:07:43,742 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 05:07:43,742 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 05:07:43,742 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 05:07:43,743 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 05:07:43,743 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 05:07:43,743 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 05:07:43,744 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 05:07:43,744 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f3d0efaf33b93df425f185e68aa4bb5fd862b42784228ced2cb70c663695e18 [2024-10-11 05:07:44,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 05:07:44,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 05:07:44,042 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 05:07:44,044 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 05:07:44,045 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 05:07:44,046 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_1+soft_float_1-2a.c.cil.c [2024-10-11 05:07:45,624 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 05:07:45,823 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 05:07:45,824 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_1+soft_float_1-2a.c.cil.c [2024-10-11 05:07:45,833 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/8e40d3bf5/4bbbf369fc9641838e7ff7d012ca697c/FLAG0c4674bef [2024-10-11 05:07:45,852 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/8e40d3bf5/4bbbf369fc9641838e7ff7d012ca697c [2024-10-11 05:07:45,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 05:07:45,857 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 05:07:45,860 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 05:07:45,860 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 05:07:45,866 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 05:07:45,872 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:07:45" (1/1) ... [2024-10-11 05:07:45,872 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@622213 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:45, skipping insertion in model container [2024-10-11 05:07:45,872 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:07:45" (1/1) ... [2024-10-11 05:07:45,909 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 05:07:46,057 WARN L248 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_1+soft_float_1-2a.c.cil.c[1996,2009] [2024-10-11 05:07:46,066 WARN L248 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_1+soft_float_1-2a.c.cil.c[2390,2403] [2024-10-11 05:07:46,127 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 05:07:46,141 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 05:07:46,155 WARN L248 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_1+soft_float_1-2a.c.cil.c[1996,2009] [2024-10-11 05:07:46,159 WARN L248 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_1+soft_float_1-2a.c.cil.c[2390,2403] [2024-10-11 05:07:46,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 05:07:46,226 INFO L204 MainTranslator]: Completed translation [2024-10-11 05:07:46,227 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:46 WrapperNode [2024-10-11 05:07:46,227 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 05:07:46,229 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 05:07:46,229 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 05:07:46,229 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 05:07:46,236 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:46" (1/1) ... [2024-10-11 05:07:46,247 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:46" (1/1) ... [2024-10-11 05:07:46,342 INFO L138 Inliner]: procedures = 27, calls = 20, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 211 [2024-10-11 05:07:46,342 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 05:07:46,342 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 05:07:46,343 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 05:07:46,343 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 05:07:46,353 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:46" (1/1) ... [2024-10-11 05:07:46,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:46" (1/1) ... [2024-10-11 05:07:46,360 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:46" (1/1) ... [2024-10-11 05:07:46,396 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]. [2024-10-11 05:07:46,396 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:46" (1/1) ... [2024-10-11 05:07:46,396 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:46" (1/1) ... [2024-10-11 05:07:46,401 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:46" (1/1) ... [2024-10-11 05:07:46,404 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:46" (1/1) ... [2024-10-11 05:07:46,405 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:46" (1/1) ... [2024-10-11 05:07:46,407 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:46" (1/1) ... [2024-10-11 05:07:46,408 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 05:07:46,409 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 05:07:46,409 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 05:07:46,409 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 05:07:46,410 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:46" (1/1) ... [2024-10-11 05:07:46,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 05:07:46,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 05:07:46,443 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 05:07:46,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 05:07:46,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 05:07:46,492 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-10-11 05:07:46,492 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-10-11 05:07:46,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 05:07:46,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 05:07:46,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 05:07:46,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-11 05:07:46,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-11 05:07:46,576 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 05:07:46,581 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 05:07:46,979 INFO L? ?]: Removed 81 outVars from TransFormulas that were not future-live. [2024-10-11 05:07:46,979 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 05:07:47,000 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 05:07:47,001 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 05:07:47,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:07:47 BoogieIcfgContainer [2024-10-11 05:07:47,001 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 05:07:47,003 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 05:07:47,003 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 05:07:47,009 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 05:07:47,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:07:45" (1/3) ... [2024-10-11 05:07:47,009 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e4dfeee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:07:47, skipping insertion in model container [2024-10-11 05:07:47,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:46" (2/3) ... [2024-10-11 05:07:47,010 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e4dfeee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:07:47, skipping insertion in model container [2024-10-11 05:07:47,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:07:47" (3/3) ... [2024-10-11 05:07:47,011 INFO L112 eAbstractionObserver]: Analyzing ICFG square_1+soft_float_1-2a.c.cil.c [2024-10-11 05:07:47,024 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 05:07:47,025 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 05:07:47,089 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 05:07:47,094 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;@6d93a440, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 05:07:47,095 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-11 05:07:47,099 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 86 states have (on average 1.6162790697674418) internal successors, (139), 90 states have internal predecessors, (139), 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) [2024-10-11 05:07:47,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-11 05:07:47,105 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:07:47,107 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-11 05:07:47,107 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:07:47,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:07:47,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1201248947, now seen corresponding path program 1 times [2024-10-11 05:07:47,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:07:47,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410075106] [2024-10-11 05:07:47,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:07:47,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:07:47,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:07:47,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 05:07:47,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:07:47,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410075106] [2024-10-11 05:07:47,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410075106] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:07:47,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:07:47,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 05:07:47,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147104311] [2024-10-11 05:07:47,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:07:47,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 05:07:47,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:07:47,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 05:07:47,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 05:07:47,235 INFO L87 Difference]: Start difference. First operand has 99 states, 86 states have (on average 1.6162790697674418) internal successors, (139), 90 states have internal predecessors, (139), 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 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2024-10-11 05:07:47,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:07:47,272 INFO L93 Difference]: Finished difference Result 194 states and 311 transitions. [2024-10-11 05:07:47,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 05:07:47,274 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2024-10-11 05:07:47,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:07:47,280 INFO L225 Difference]: With dead ends: 194 [2024-10-11 05:07:47,280 INFO L226 Difference]: Without dead ends: 95 [2024-10-11 05:07:47,284 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 [2024-10-11 05:07:47,288 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 05:07:47,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 05:07:47,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-10-11 05:07:47,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2024-10-11 05:07:47,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 83 states have (on average 1.4939759036144578) internal successors, (124), 86 states have internal predecessors, (124), 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) [2024-10-11 05:07:47,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 139 transitions. [2024-10-11 05:07:47,326 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 139 transitions. Word has length 6 [2024-10-11 05:07:47,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:07:47,327 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 139 transitions. [2024-10-11 05:07:47,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2024-10-11 05:07:47,327 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 139 transitions. [2024-10-11 05:07:47,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-11 05:07:47,328 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:07:47,329 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-11 05:07:47,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 05:07:47,329 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:07:47,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:07:47,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1201189365, now seen corresponding path program 1 times [2024-10-11 05:07:47,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:07:47,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11698237] [2024-10-11 05:07:47,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:07:47,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:07:47,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 05:07:47,346 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 05:07:47,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 05:07:47,371 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 05:07:47,371 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 05:07:47,372 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-10-11 05:07:47,374 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-10-11 05:07:47,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 05:07:47,377 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-11 05:07:47,386 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 05:07:47,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 05:07:47 BoogieIcfgContainer [2024-10-11 05:07:47,389 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 05:07:47,390 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 05:07:47,391 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 05:07:47,392 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 05:07:47,392 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:07:47" (3/4) ... [2024-10-11 05:07:47,393 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-11 05:07:47,394 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 05:07:47,395 INFO L158 Benchmark]: Toolchain (without parser) took 1537.70ms. Allocated memory is still 163.6MB. Free memory was 92.7MB in the beginning and 77.3MB in the end (delta: 15.4MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2024-10-11 05:07:47,395 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 163.6MB. Free memory is still 117.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 05:07:47,395 INFO L158 Benchmark]: CACSL2BoogieTranslator took 368.33ms. Allocated memory is still 163.6MB. Free memory was 92.4MB in the beginning and 75.9MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-11 05:07:47,396 INFO L158 Benchmark]: Boogie Procedure Inliner took 113.45ms. Allocated memory is still 163.6MB. Free memory was 75.7MB in the beginning and 133.6MB in the end (delta: -57.8MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2024-10-11 05:07:47,396 INFO L158 Benchmark]: Boogie Preprocessor took 65.90ms. Allocated memory is still 163.6MB. Free memory was 133.6MB in the beginning and 130.9MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 05:07:47,396 INFO L158 Benchmark]: RCFGBuilder took 592.37ms. Allocated memory is still 163.6MB. Free memory was 130.9MB in the beginning and 104.5MB in the end (delta: 26.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-10-11 05:07:47,397 INFO L158 Benchmark]: TraceAbstraction took 386.69ms. Allocated memory is still 163.6MB. Free memory was 103.6MB in the beginning and 77.9MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-10-11 05:07:47,397 INFO L158 Benchmark]: Witness Printer took 4.56ms. Allocated memory is still 163.6MB. Free memory was 77.9MB in the beginning and 77.3MB in the end (delta: 592.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 05:07:47,399 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 163.6MB. Free memory is still 117.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 368.33ms. Allocated memory is still 163.6MB. Free memory was 92.4MB in the beginning and 75.9MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 113.45ms. Allocated memory is still 163.6MB. Free memory was 75.7MB in the beginning and 133.6MB in the end (delta: -57.8MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.90ms. Allocated memory is still 163.6MB. Free memory was 133.6MB in the beginning and 130.9MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 592.37ms. Allocated memory is still 163.6MB. Free memory was 130.9MB in the beginning and 104.5MB in the end (delta: 26.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 386.69ms. Allocated memory is still 163.6MB. Free memory was 103.6MB in the beginning and 77.9MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 4.56ms. Allocated memory is still 163.6MB. Free memory was 77.9MB in the beginning and 77.3MB in the end (delta: 592.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 48]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 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 < 1.39f) [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, 99 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, 139 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 139 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=99occurred 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, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 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 [2024-10-11 05:07:47,429 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_1+soft_float_1-2a.c.cil.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 2f3d0efaf33b93df425f185e68aa4bb5fd862b42784228ced2cb70c663695e18 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 05:07:49,600 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 05:07:49,682 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-11 05:07:49,691 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 05:07:49,692 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 05:07:49,724 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 05:07:49,727 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 05:07:49,728 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 05:07:49,729 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 05:07:49,730 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 05:07:49,730 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 05:07:49,730 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 05:07:49,731 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 05:07:49,731 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 05:07:49,731 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 05:07:49,732 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 05:07:49,733 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 05:07:49,734 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 05:07:49,734 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 05:07:49,734 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 05:07:49,734 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 05:07:49,742 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 05:07:49,742 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 05:07:49,742 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 05:07:49,742 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-11 05:07:49,742 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 05:07:49,743 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-11 05:07:49,743 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 05:07:49,743 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 05:07:49,743 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 05:07:49,743 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 05:07:49,743 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 05:07:49,744 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 05:07:49,744 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 05:07:49,744 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 05:07:49,744 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 05:07:49,744 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 05:07:49,745 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 05:07:49,745 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-11 05:07:49,745 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-11 05:07:49,746 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 05:07:49,747 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 05:07:49,747 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 05:07:49,747 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 05:07:49,748 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-11 05:07:49,748 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f3d0efaf33b93df425f185e68aa4bb5fd862b42784228ced2cb70c663695e18 [2024-10-11 05:07:50,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 05:07:50,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 05:07:50,103 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 05:07:50,105 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 05:07:50,105 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 05:07:50,106 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_1+soft_float_1-2a.c.cil.c [2024-10-11 05:07:51,629 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 05:07:51,820 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 05:07:51,821 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_1+soft_float_1-2a.c.cil.c [2024-10-11 05:07:51,829 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/26ece6997/f0674b38f6534a1b8f26787fe1d46725/FLAG6dce72ae5 [2024-10-11 05:07:51,841 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/26ece6997/f0674b38f6534a1b8f26787fe1d46725 [2024-10-11 05:07:51,843 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 05:07:51,844 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 05:07:51,845 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 05:07:51,845 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 05:07:51,849 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 05:07:51,850 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:07:51" (1/1) ... [2024-10-11 05:07:51,851 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4200827e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:51, skipping insertion in model container [2024-10-11 05:07:51,851 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:07:51" (1/1) ... [2024-10-11 05:07:51,880 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 05:07:52,058 WARN L248 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_1+soft_float_1-2a.c.cil.c[1996,2009] [2024-10-11 05:07:52,065 WARN L248 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_1+soft_float_1-2a.c.cil.c[2390,2403] [2024-10-11 05:07:52,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 05:07:52,129 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 05:07:52,141 WARN L248 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_1+soft_float_1-2a.c.cil.c[1996,2009] [2024-10-11 05:07:52,144 WARN L248 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_1+soft_float_1-2a.c.cil.c[2390,2403] [2024-10-11 05:07:52,177 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 05:07:52,199 INFO L204 MainTranslator]: Completed translation [2024-10-11 05:07:52,199 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:52 WrapperNode [2024-10-11 05:07:52,199 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 05:07:52,200 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 05:07:52,201 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 05:07:52,201 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 05:07:52,206 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:52" (1/1) ... [2024-10-11 05:07:52,220 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:52" (1/1) ... [2024-10-11 05:07:52,247 INFO L138 Inliner]: procedures = 28, calls = 20, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 168 [2024-10-11 05:07:52,247 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 05:07:52,248 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 05:07:52,248 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 05:07:52,248 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 05:07:52,256 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:52" (1/1) ... [2024-10-11 05:07:52,257 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:52" (1/1) ... [2024-10-11 05:07:52,261 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:52" (1/1) ... [2024-10-11 05:07:52,275 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]. [2024-10-11 05:07:52,279 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:52" (1/1) ... [2024-10-11 05:07:52,279 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:52" (1/1) ... [2024-10-11 05:07:52,286 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:52" (1/1) ... [2024-10-11 05:07:52,289 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:52" (1/1) ... [2024-10-11 05:07:52,291 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:52" (1/1) ... [2024-10-11 05:07:52,292 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:52" (1/1) ... [2024-10-11 05:07:52,294 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 05:07:52,295 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 05:07:52,295 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 05:07:52,295 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 05:07:52,296 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:52" (1/1) ... [2024-10-11 05:07:52,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 05:07:52,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 05:07:52,328 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 05:07:52,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 05:07:52,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 05:07:52,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-11 05:07:52,368 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-10-11 05:07:52,369 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-10-11 05:07:52,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 05:07:52,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 05:07:52,370 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-11 05:07:52,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-11 05:07:52,441 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 05:07:52,442 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 05:07:57,217 INFO L? ?]: Removed 65 outVars from TransFormulas that were not future-live. [2024-10-11 05:07:57,217 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 05:07:57,243 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 05:07:57,246 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 05:07:57,246 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:07:57 BoogieIcfgContainer [2024-10-11 05:07:57,247 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 05:07:57,249 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 05:07:57,249 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 05:07:57,252 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 05:07:57,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:07:51" (1/3) ... [2024-10-11 05:07:57,253 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59272331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:07:57, skipping insertion in model container [2024-10-11 05:07:57,253 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:52" (2/3) ... [2024-10-11 05:07:57,253 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59272331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:07:57, skipping insertion in model container [2024-10-11 05:07:57,254 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:07:57" (3/3) ... [2024-10-11 05:07:57,255 INFO L112 eAbstractionObserver]: Analyzing ICFG square_1+soft_float_1-2a.c.cil.c [2024-10-11 05:07:57,268 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 05:07:57,269 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 05:07:57,322 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 05:07:57,332 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;@7cc05e48, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 05:07:57,336 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-11 05:07:57,340 INFO L276 IsEmpty]: Start isEmpty. Operand has 75 states, 62 states have (on average 1.6451612903225807) internal successors, (102), 66 states have internal predecessors, (102), 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) [2024-10-11 05:07:57,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-11 05:07:57,346 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:07:57,347 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-11 05:07:57,347 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:07:57,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:07:57,352 INFO L85 PathProgramCache]: Analyzing trace with hash 693641191, now seen corresponding path program 1 times [2024-10-11 05:07:57,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 05:07:57,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1638143437] [2024-10-11 05:07:57,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:07:57,365 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 [2024-10-11 05:07:57,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 05:07:57,373 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/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) [2024-10-11 05:07:57,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 05:07:57,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:07:57,857 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-11 05:07:57,861 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 05:07:57,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 05:07:57,879 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 05:07:57,880 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 05:07:57,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1638143437] [2024-10-11 05:07:57,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1638143437] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:07:57,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:07:57,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 05:07:57,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711532194] [2024-10-11 05:07:57,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:07:57,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 05:07:57,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 05:07:57,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 05:07:57,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 05:07:57,920 INFO L87 Difference]: Start difference. First operand has 75 states, 62 states have (on average 1.6451612903225807) internal successors, (102), 66 states have internal predecessors, (102), 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 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2024-10-11 05:07:58,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:07:58,010 INFO L93 Difference]: Finished difference Result 146 states and 237 transitions. [2024-10-11 05:07:58,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 05:07:58,013 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2024-10-11 05:07:58,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:07:58,021 INFO L225 Difference]: With dead ends: 146 [2024-10-11 05:07:58,021 INFO L226 Difference]: Without dead ends: 71 [2024-10-11 05:07:58,024 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 05:07:58,028 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 05:07:58,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 104 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 05:07:58,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-10-11 05:07:58,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2024-10-11 05:07:58,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 59 states have (on average 1.5084745762711864) internal successors, (89), 62 states have internal predecessors, (89), 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) [2024-10-11 05:07:58,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 104 transitions. [2024-10-11 05:07:58,074 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 104 transitions. Word has length 6 [2024-10-11 05:07:58,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:07:58,075 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 104 transitions. [2024-10-11 05:07:58,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2024-10-11 05:07:58,075 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 104 transitions. [2024-10-11 05:07:58,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-11 05:07:58,076 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:07:58,077 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-11 05:07:58,095 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 05:07:58,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/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 [2024-10-11 05:07:58,283 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:07:58,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:07:58,285 INFO L85 PathProgramCache]: Analyzing trace with hash 693700773, now seen corresponding path program 1 times [2024-10-11 05:07:58,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 05:07:58,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [631426813] [2024-10-11 05:07:58,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:07:58,292 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 [2024-10-11 05:07:58,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 05:07:58,294 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/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) [2024-10-11 05:07:58,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 05:08:19,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 05:08:19,334 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 05:08:42,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 05:08:42,361 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-10-11 05:08:42,365 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 05:08:42,367 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-10-11 05:08:42,372 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-10-11 05:08:42,401 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 05:08:42,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-clean/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 [2024-10-11 05:08:42,582 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-11 05:08:42,607 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 05:08:42,612 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 05:08:42 BoogieIcfgContainer [2024-10-11 05:08:42,613 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 05:08:42,614 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 05:08:42,614 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 05:08:42,614 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 05:08:42,615 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:07:57" (3/4) ... [2024-10-11 05:08:42,616 INFO L133 WitnessPrinter]: Generating witness for reachability counterexample [2024-10-11 05:08:42,673 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 05:08:42,674 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 05:08:42,674 INFO L158 Benchmark]: Toolchain (without parser) took 50829.84ms. Allocated memory was 75.5MB in the beginning and 148.9MB in the end (delta: 73.4MB). Free memory was 37.2MB in the beginning and 83.9MB in the end (delta: -46.7MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. [2024-10-11 05:08:42,675 INFO L158 Benchmark]: CDTParser took 1.06ms. Allocated memory is still 75.5MB. Free memory is still 51.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 05:08:42,675 INFO L158 Benchmark]: CACSL2BoogieTranslator took 354.33ms. Allocated memory is still 75.5MB. Free memory was 37.0MB in the beginning and 43.6MB in the end (delta: -6.6MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2024-10-11 05:08:42,675 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.26ms. Allocated memory is still 75.5MB. Free memory was 43.6MB in the beginning and 41.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 05:08:42,675 INFO L158 Benchmark]: Boogie Preprocessor took 46.67ms. Allocated memory is still 75.5MB. Free memory was 41.5MB in the beginning and 38.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 05:08:42,676 INFO L158 Benchmark]: RCFGBuilder took 4952.00ms. Allocated memory was 75.5MB in the beginning and 148.9MB in the end (delta: 73.4MB). Free memory was 38.4MB in the beginning and 111.8MB in the end (delta: -73.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-11 05:08:42,685 INFO L158 Benchmark]: TraceAbstraction took 45364.28ms. Allocated memory is still 148.9MB. Free memory was 111.2MB in the beginning and 85.8MB in the end (delta: 25.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-10-11 05:08:42,686 INFO L158 Benchmark]: Witness Printer took 60.10ms. Allocated memory is still 148.9MB. Free memory was 85.2MB in the beginning and 83.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 05:08:42,687 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.06ms. Allocated memory is still 75.5MB. Free memory is still 51.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 354.33ms. Allocated memory is still 75.5MB. Free memory was 37.0MB in the beginning and 43.6MB in the end (delta: -6.6MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.26ms. Allocated memory is still 75.5MB. Free memory was 43.6MB in the beginning and 41.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.67ms. Allocated memory is still 75.5MB. Free memory was 41.5MB in the beginning and 38.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 4952.00ms. Allocated memory was 75.5MB in the beginning and 148.9MB in the end (delta: 73.4MB). Free memory was 38.4MB in the beginning and 111.8MB in the end (delta: -73.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 45364.28ms. Allocated memory is still 148.9MB. Free memory was 111.2MB in the beginning and 85.8MB in the end (delta: 25.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 60.10ms. Allocated memory is still 148.9MB. Free memory was 85.2MB in the beginning and 83.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 48]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [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=1.3978164196014404] [L47] COND TRUE !(result >= 0.0f && result < 1.39f) [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, 75 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 45.3s, 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, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 104 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 104 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred 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, 21.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 19 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! [2024-10-11 05:08:42,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE