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/float12.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fab3c18 [2019-08-22 21:23:25,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-22 21:23:25,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-22 21:23:25,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-22 21:23:25,329 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-22 21:23:25,330 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-22 21:23:25,332 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-22 21:23:25,334 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-22 21:23:25,335 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-22 21:23:25,336 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-22 21:23:25,338 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-22 21:23:25,339 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-22 21:23:25,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-22 21:23:25,340 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-22 21:23:25,341 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-22 21:23:25,342 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-22 21:23:25,343 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-22 21:23:25,344 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-22 21:23:25,346 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-22 21:23:25,348 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-22 21:23:25,350 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-22 21:23:25,351 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-22 21:23:25,352 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-22 21:23:25,353 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-22 21:23:25,355 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-22 21:23:25,356 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-22 21:23:25,356 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-22 21:23:25,357 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-22 21:23:25,357 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-22 21:23:25,358 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-22 21:23:25,358 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-22 21:23:25,359 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-22 21:23:25,360 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-22 21:23:25,361 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-22 21:23:25,362 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-22 21:23:25,362 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-22 21:23:25,363 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-22 21:23:25,363 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-22 21:23:25,363 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-22 21:23:25,364 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-22 21:23:25,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-22 21:23:25,366 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 [2019-08-22 21:23:25,384 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-22 21:23:25,384 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-22 21:23:25,387 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-22 21:23:25,387 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-22 21:23:25,388 INFO L138 SettingsManager]: * Use SBE=true [2019-08-22 21:23:25,388 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-22 21:23:25,388 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-22 21:23:25,388 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-22 21:23:25,388 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-22 21:23:25,389 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-22 21:23:25,390 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-22 21:23:25,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-22 21:23:25,390 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-22 21:23:25,391 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-22 21:23:25,391 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-22 21:23:25,391 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-22 21:23:25,391 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-22 21:23:25,392 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-22 21:23:25,392 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-22 21:23:25,392 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-22 21:23:25,392 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-22 21:23:25,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-22 21:23:25,393 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-22 21:23:25,393 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-22 21:23:25,394 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-22 21:23:25,394 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-22 21:23:25,394 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-22 21:23:25,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-22 21:23:25,394 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-22 21:23:25,469 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-22 21:23:25,481 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-22 21:23:25,485 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-22 21:23:25,486 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-22 21:23:25,487 INFO L275 PluginConnector]: CDTParser initialized [2019-08-22 21:23:25,488 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float12.c [2019-08-22 21:23:25,557 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d94667f1c/192b6feb64974f6ca1956309e28ba303/FLAG1cba2bf41 [2019-08-22 21:23:26,048 INFO L306 CDTParser]: Found 1 translation units. [2019-08-22 21:23:26,051 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float12.c [2019-08-22 21:23:26,058 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d94667f1c/192b6feb64974f6ca1956309e28ba303/FLAG1cba2bf41 [2019-08-22 21:23:26,444 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d94667f1c/192b6feb64974f6ca1956309e28ba303 [2019-08-22 21:23:26,453 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-22 21:23:26,454 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-22 21:23:26,455 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-22 21:23:26,455 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-22 21:23:26,459 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-22 21:23:26,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:23:26" (1/1) ... [2019-08-22 21:23:26,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66684ca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:26, skipping insertion in model container [2019-08-22 21:23:26,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:23:26" (1/1) ... [2019-08-22 21:23:26,471 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-22 21:23:26,487 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-22 21:23:26,721 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-22 21:23:26,729 INFO L188 MainTranslator]: Completed pre-run [2019-08-22 21:23:26,751 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-22 21:23:26,767 INFO L192 MainTranslator]: Completed translation [2019-08-22 21:23:26,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:26 WrapperNode [2019-08-22 21:23:26,768 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-22 21:23:26,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-22 21:23:26,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-22 21:23:26,770 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-22 21:23:26,918 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:26" (1/1) ... [2019-08-22 21:23:26,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:26" (1/1) ... [2019-08-22 21:23:26,930 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:26" (1/1) ... [2019-08-22 21:23:26,932 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:26" (1/1) ... [2019-08-22 21:23:26,939 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:26" (1/1) ... [2019-08-22 21:23:26,941 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:26" (1/1) ... [2019-08-22 21:23:26,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:26" (1/1) ... [2019-08-22 21:23:26,944 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-22 21:23:26,944 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-22 21:23:26,945 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-22 21:23:26,945 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-22 21:23:26,946 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:26" (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 [2019-08-22 21:23:27,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-22 21:23:27,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-22 21:23:27,003 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-22 21:23:27,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-22 21:23:27,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2019-08-22 21:23:27,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-08-22 21:23:27,003 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-22 21:23:27,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-22 21:23:27,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-22 21:23:27,125 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-22 21:23:27,125 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-22 21:23:27,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:23:27 BoogieIcfgContainer [2019-08-22 21:23:27,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-22 21:23:27,127 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-22 21:23:27,127 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-22 21:23:27,128 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-22 21:23:27,129 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:23:27" (1/1) ... [2019-08-22 21:23:27,140 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-22 21:23:27,142 INFO L155 IcfgInterpreter]: Building call graph [2019-08-22 21:23:27,148 INFO L160 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-22 21:23:27,156 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-22 21:23:27,158 INFO L185 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 [2019-08-22 21:23:27,206 INFO L185 IcfgInterpreter]: Interpreting procedure main with input of size 1 [2019-08-22 21:23:27,230 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-22 21:23:27,231 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-22 21:23:27,233 INFO L179 IcfgInterpreter]: Reachable states at location mainErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 17#(= main_~d~0 main_~f~0) [2019-08-22 21:23:27,242 INFO L91 terpretationObserver]: ✘ Some locations of interest might be reachable, see reported results. [2019-08-22 21:23:27,243 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-22 21:23:27,246 INFO L168 Benchmark]: Toolchain (without parser) took 790.12 ms. Allocated memory was 132.1 MB in the beginning and 202.4 MB in the end (delta: 70.3 MB). Free memory was 87.9 MB in the beginning and 162.9 MB in the end (delta: -75.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-08-22 21:23:27,247 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 132.1 MB. Free memory was 106.4 MB in the beginning and 106.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-22 21:23:27,248 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.69 ms. Allocated memory is still 132.1 MB. Free memory was 87.7 MB in the beginning and 78.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-08-22 21:23:27,249 INFO L168 Benchmark]: Boogie Preprocessor took 174.31 ms. Allocated memory was 132.1 MB in the beginning and 202.4 MB in the end (delta: 70.3 MB). Free memory was 78.3 MB in the beginning and 178.9 MB in the end (delta: -100.6 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. [2019-08-22 21:23:27,250 INFO L168 Benchmark]: RCFGBuilder took 182.42 ms. Allocated memory is still 202.4 MB. Free memory was 178.9 MB in the beginning and 169.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-08-22 21:23:27,251 INFO L168 Benchmark]: Symbolic Interpretation took 115.76 ms. Allocated memory is still 202.4 MB. Free memory was 169.1 MB in the beginning and 162.9 MB in the end (delta: 6.2 MB). Peak memory consumption was 6.2 MB. Max. memory is 7.1 GB. [2019-08-22 21:23:27,255 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 13]: 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 17#(= main_~d~0 main_~f~0). Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 132.1 MB. Free memory was 106.4 MB in the beginning and 106.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 313.69 ms. Allocated memory is still 132.1 MB. Free memory was 87.7 MB in the beginning and 78.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 174.31 ms. Allocated memory was 132.1 MB in the beginning and 202.4 MB in the end (delta: 70.3 MB). Free memory was 78.3 MB in the beginning and 178.9 MB in the end (delta: -100.6 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 182.42 ms. Allocated memory is still 202.4 MB. Free memory was 178.9 MB in the beginning and 169.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 115.76 ms. Allocated memory is still 202.4 MB. Free memory was 169.1 MB in the beginning and 162.9 MB in the end (delta: 6.2 MB). Peak memory consumption was 6.2 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...