java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/floats-cbmc-regression/float1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-55cd5f5 [2019-08-14 19:38:41,214 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-14 19:38:41,216 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-14 19:38:41,227 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-14 19:38:41,228 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-14 19:38:41,229 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-14 19:38:41,230 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-14 19:38:41,232 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-14 19:38:41,234 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-14 19:38:41,235 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-14 19:38:41,236 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-14 19:38:41,237 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-14 19:38:41,237 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-14 19:38:41,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-14 19:38:41,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-14 19:38:41,240 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-14 19:38:41,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-14 19:38:41,241 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-14 19:38:41,243 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-14 19:38:41,245 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-14 19:38:41,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-14 19:38:41,247 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-14 19:38:41,248 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-14 19:38:41,249 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-14 19:38:41,251 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-14 19:38:41,254 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-14 19:38:41,255 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-14 19:38:41,255 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-14 19:38:41,256 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-14 19:38:41,257 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-14 19:38:41,257 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-14 19:38:41,258 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-14 19:38:41,258 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-14 19:38:41,258 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-14 19:38:41,259 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-14 19:38:41,260 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-14 19:38:41,261 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-08-14 19:38:41,274 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-14 19:38:41,274 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-14 19:38:41,275 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-14 19:38:41,276 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-14 19:38:41,276 INFO L138 SettingsManager]: * Use SBE=true [2019-08-14 19:38:41,276 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-14 19:38:41,276 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-14 19:38:41,276 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-14 19:38:41,277 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-14 19:38:41,277 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-14 19:38:41,277 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-14 19:38:41,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-14 19:38:41,277 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-14 19:38:41,278 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-14 19:38:41,278 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-14 19:38:41,278 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-14 19:38:41,278 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-14 19:38:41,279 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-14 19:38:41,279 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-14 19:38:41,279 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-14 19:38:41,279 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-14 19:38:41,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-14 19:38:41,280 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-14 19:38:41,280 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-14 19:38:41,280 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-14 19:38:41,280 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-14 19:38:41,280 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-14 19:38:41,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-14 19:38:41,281 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-14 19:38:41,313 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-14 19:38:41,328 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-14 19:38:41,332 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-14 19:38:41,333 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-14 19:38:41,334 INFO L275 PluginConnector]: CDTParser initialized [2019-08-14 19:38:41,334 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float1.c [2019-08-14 19:38:41,403 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0d0786fc/f13c2b3d64234ea18b62d6738378731e/FLAG92121482c [2019-08-14 19:38:41,879 INFO L306 CDTParser]: Found 1 translation units. [2019-08-14 19:38:41,880 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float1.c [2019-08-14 19:38:41,886 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0d0786fc/f13c2b3d64234ea18b62d6738378731e/FLAG92121482c [2019-08-14 19:38:42,378 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0d0786fc/f13c2b3d64234ea18b62d6738378731e [2019-08-14 19:38:42,387 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-14 19:38:42,388 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-14 19:38:42,389 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-14 19:38:42,390 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-14 19:38:42,393 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-14 19:38:42,394 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 07:38:42" (1/1) ... [2019-08-14 19:38:42,396 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cdec86d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 07:38:42, skipping insertion in model container [2019-08-14 19:38:42,397 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 07:38:42" (1/1) ... [2019-08-14 19:38:42,404 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-14 19:38:42,418 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-14 19:38:42,574 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-14 19:38:42,579 INFO L188 MainTranslator]: Completed pre-run [2019-08-14 19:38:42,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-14 19:38:42,603 INFO L192 MainTranslator]: Completed translation [2019-08-14 19:38:42,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 07:38:42 WrapperNode [2019-08-14 19:38:42,603 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-14 19:38:42,604 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-14 19:38:42,604 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-14 19:38:42,604 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-14 19:38:42,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 07:38:42" (1/1) ... [2019-08-14 19:38:42,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 07:38:42" (1/1) ... [2019-08-14 19:38:42,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 07:38:42" (1/1) ... [2019-08-14 19:38:42,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 07:38:42" (1/1) ... [2019-08-14 19:38:42,707 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 07:38:42" (1/1) ... [2019-08-14 19:38:42,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 07:38:42" (1/1) ... [2019-08-14 19:38:42,720 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 07:38:42" (1/1) ... [2019-08-14 19:38:42,721 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-14 19:38:42,721 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-14 19:38:42,722 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-14 19:38:42,722 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-14 19:38:42,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 07:38:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-14 19:38:42,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-14 19:38:42,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-14 19:38:42,766 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-14 19:38:42,766 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-14 19:38:42,766 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-14 19:38:42,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-14 19:38:42,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-14 19:38:42,902 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-14 19:38:42,902 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-14 19:38:42,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.08 07:38:42 BoogieIcfgContainer [2019-08-14 19:38:42,904 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-14 19:38:42,905 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-14 19:38:42,906 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-14 19:38:42,906 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-14 19:38:42,907 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.08 07:38:42" (1/1) ... [2019-08-14 19:38:43,001 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-14 19:38:43,004 INFO L168 Benchmark]: Toolchain (without parser) took 614.35 ms. Allocated memory was 138.4 MB in the beginning and 198.2 MB in the end (delta: 59.8 MB). Free memory was 86.3 MB in the beginning and 161.4 MB in the end (delta: -75.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-08-14 19:38:43,005 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 138.4 MB. Free memory was 104.4 MB in the beginning and 104.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-14 19:38:43,006 INFO L168 Benchmark]: CACSL2BoogieTranslator took 214.15 ms. Allocated memory is still 138.4 MB. Free memory was 86.1 MB in the beginning and 77.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-08-14 19:38:43,008 INFO L168 Benchmark]: Boogie Preprocessor took 117.31 ms. Allocated memory was 138.4 MB in the beginning and 198.2 MB in the end (delta: 59.8 MB). Free memory was 77.1 MB in the beginning and 175.7 MB in the end (delta: -98.6 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2019-08-14 19:38:43,009 INFO L168 Benchmark]: RCFGBuilder took 182.83 ms. Allocated memory is still 198.2 MB. Free memory was 175.7 MB in the beginning and 165.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-08-14 19:38:43,010 INFO L168 Benchmark]: Symbolic Interpretation took 96.65 ms. Allocated memory is still 198.2 MB. Free memory was 165.7 MB in the beginning and 161.4 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2019-08-14 19:38:43,014 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Over-approximation of reachable states at this location is 23#(not (= main_~y~0 1)). Possible FailurePath: - UnprovableResult [Line: 17]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Over-approximation of reachable states at this location is 20#(not (= main_~y~0 1)). Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 138.4 MB. Free memory was 104.4 MB in the beginning and 104.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 214.15 ms. Allocated memory is still 138.4 MB. Free memory was 86.1 MB in the beginning and 77.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.31 ms. Allocated memory was 138.4 MB in the beginning and 198.2 MB in the end (delta: 59.8 MB). Free memory was 77.1 MB in the beginning and 175.7 MB in the end (delta: -98.6 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 182.83 ms. Allocated memory is still 198.2 MB. Free memory was 175.7 MB in the beginning and 165.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 96.65 ms. Allocated memory is still 198.2 MB. Free memory was 165.7 MB in the beginning and 161.4 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...