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-esbmc-regression/Float_div.i.p+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-a32b1f7 [2019-08-18 06:18:43,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-18 06:18:43,314 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-18 06:18:43,326 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-18 06:18:43,326 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-18 06:18:43,327 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-18 06:18:43,328 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-18 06:18:43,330 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-18 06:18:43,332 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-18 06:18:43,333 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-18 06:18:43,334 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-18 06:18:43,335 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-18 06:18:43,335 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-18 06:18:43,336 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-18 06:18:43,338 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-18 06:18:43,339 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-18 06:18:43,340 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-18 06:18:43,341 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-18 06:18:43,342 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-18 06:18:43,344 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-18 06:18:43,346 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-18 06:18:43,347 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-18 06:18:43,348 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-18 06:18:43,349 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-18 06:18:43,351 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-18 06:18:43,354 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-18 06:18:43,355 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-18 06:18:43,355 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-18 06:18:43,356 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-18 06:18:43,357 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-18 06:18:43,357 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-18 06:18:43,358 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-18 06:18:43,358 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-18 06:18:43,359 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-18 06:18:43,359 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-18 06:18:43,360 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-18 06:18:43,361 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 [2019-08-18 06:18:43,375 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-18 06:18:43,375 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-18 06:18:43,376 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-18 06:18:43,377 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-18 06:18:43,377 INFO L138 SettingsManager]: * Use SBE=true [2019-08-18 06:18:43,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-18 06:18:43,377 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-18 06:18:43,378 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-18 06:18:43,378 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-18 06:18:43,378 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-18 06:18:43,378 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-18 06:18:43,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-18 06:18:43,379 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-18 06:18:43,379 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-18 06:18:43,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-18 06:18:43,379 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-18 06:18:43,379 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-18 06:18:43,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-18 06:18:43,380 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-18 06:18:43,380 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-18 06:18:43,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-18 06:18:43,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-18 06:18:43,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-18 06:18:43,381 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-18 06:18:43,381 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-18 06:18:43,381 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-18 06:18:43,381 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-18 06:18:43,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-18 06:18:43,382 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-18 06:18:43,410 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-18 06:18:43,422 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-18 06:18:43,426 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-18 06:18:43,427 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-18 06:18:43,427 INFO L275 PluginConnector]: CDTParser initialized [2019-08-18 06:18:43,428 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-esbmc-regression/Float_div.i.p+cfa-reducer.c [2019-08-18 06:18:43,503 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9379e6566/20b05ed3a2d24c9e86141a886a9b55c2/FLAG6fba39a0d [2019-08-18 06:18:43,960 INFO L306 CDTParser]: Found 1 translation units. [2019-08-18 06:18:43,961 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/Float_div.i.p+cfa-reducer.c [2019-08-18 06:18:43,967 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9379e6566/20b05ed3a2d24c9e86141a886a9b55c2/FLAG6fba39a0d [2019-08-18 06:18:44,317 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9379e6566/20b05ed3a2d24c9e86141a886a9b55c2 [2019-08-18 06:18:44,326 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-18 06:18:44,327 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-18 06:18:44,328 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-18 06:18:44,328 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-18 06:18:44,332 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-18 06:18:44,333 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 06:18:44" (1/1) ... [2019-08-18 06:18:44,336 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68591fcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:18:44, skipping insertion in model container [2019-08-18 06:18:44,336 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 06:18:44" (1/1) ... [2019-08-18 06:18:44,343 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-18 06:18:44,359 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-18 06:18:44,600 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-18 06:18:44,607 INFO L188 MainTranslator]: Completed pre-run [2019-08-18 06:18:44,628 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-18 06:18:44,644 INFO L192 MainTranslator]: Completed translation [2019-08-18 06:18:44,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:18:44 WrapperNode [2019-08-18 06:18:44,645 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-18 06:18:44,646 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-18 06:18:44,646 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-18 06:18:44,646 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-18 06:18:44,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:18:44" (1/1) ... [2019-08-18 06:18:44,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:18:44" (1/1) ... [2019-08-18 06:18:44,746 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:18:44" (1/1) ... [2019-08-18 06:18:44,747 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:18:44" (1/1) ... [2019-08-18 06:18:44,754 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:18:44" (1/1) ... [2019-08-18 06:18:44,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:18:44" (1/1) ... [2019-08-18 06:18:44,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:18:44" (1/1) ... [2019-08-18 06:18:44,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-18 06:18:44,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-18 06:18:44,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-18 06:18:44,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-18 06:18:44,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:18:44" (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 [2019-08-18 06:18:44,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-18 06:18:44,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-18 06:18:44,828 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-18 06:18:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-18 06:18:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-08-18 06:18:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-18 06:18:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-18 06:18:44,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-18 06:18:44,981 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-18 06:18:44,981 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-18 06:18:44,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 06:18:44 BoogieIcfgContainer [2019-08-18 06:18:44,982 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-18 06:18:44,983 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-18 06:18:44,983 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-18 06:18:44,983 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-18 06:18:44,984 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 06:18:44" (1/1) ... [2019-08-18 06:18:44,996 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-18 06:18:44,999 INFO L155 IcfgInterpreter]: Building call graph [2019-08-18 06:18:45,005 INFO L160 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-18 06:18:45,013 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-18 06:18:45,015 INFO L185 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 [2019-08-18 06:18:45,064 INFO L185 IcfgInterpreter]: Interpreting procedure main with input of size 3 [2019-08-18 06:18:45,085 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-18 06:18:45,085 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-18 06:18:45,088 INFO L179 IcfgInterpreter]: Location mainErr0ASSERT_VIOLATIONERROR_FUNCTION has predicate 22#(and (= main_~__VERIFIER_assert__cond~0 0) (or (and (= 1.0 main_~main__x~0) (= ~__return_main~0 0)) (= ~__return_main~0 0)) (= main_~__tmp_1~0 main_~__VERIFIER_assert__cond~0) (or (= main_~__tmp_1~0 1) (= main_~__tmp_1~0 0))) [2019-08-18 06:18:45,098 INFO L92 terpretationObserver]: ✘ Some locations of interest might be reachable, see reported results. [2019-08-18 06:18:45,098 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-18 06:18:45,100 INFO L168 Benchmark]: Toolchain (without parser) took 772.54 ms. Allocated memory was 132.1 MB in the beginning and 198.7 MB in the end (delta: 66.6 MB). Free memory was 88.5 MB in the beginning and 159.8 MB in the end (delta: -71.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-08-18 06:18:45,101 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 132.1 MB. Free memory is still 106.0 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-18 06:18:45,102 INFO L168 Benchmark]: CACSL2BoogieTranslator took 317.79 ms. Allocated memory is still 132.1 MB. Free memory was 88.1 MB in the beginning and 79.1 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-08-18 06:18:45,103 INFO L168 Benchmark]: Boogie Preprocessor took 113.18 ms. Allocated memory was 132.1 MB in the beginning and 198.7 MB in the end (delta: 66.6 MB). Free memory was 79.1 MB in the beginning and 176.0 MB in the end (delta: -96.9 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. [2019-08-18 06:18:45,104 INFO L168 Benchmark]: RCFGBuilder took 223.17 ms. Allocated memory is still 198.7 MB. Free memory was 176.0 MB in the beginning and 165.5 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2019-08-18 06:18:45,105 INFO L168 Benchmark]: Symbolic Interpretation took 115.09 ms. Allocated memory is still 198.7 MB. Free memory was 165.5 MB in the beginning and 159.8 MB in the end (delta: 5.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 7.1 GB. [2019-08-18 06:18:45,109 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 25]: 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 22#(and (= main_~__VERIFIER_assert__cond~0 0) (or (and (= 1.0 main_~main__x~0) (= ~__return_main~0 0)) (= ~__return_main~0 0)) (= main_~__tmp_1~0 main_~__VERIFIER_assert__cond~0) (or (= main_~__tmp_1~0 1) (= main_~__tmp_1~0 0))). Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 132.1 MB. Free memory is still 106.0 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 317.79 ms. Allocated memory is still 132.1 MB. Free memory was 88.1 MB in the beginning and 79.1 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.18 ms. Allocated memory was 132.1 MB in the beginning and 198.7 MB in the end (delta: 66.6 MB). Free memory was 79.1 MB in the beginning and 176.0 MB in the end (delta: -96.9 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 223.17 ms. Allocated memory is still 198.7 MB. Free memory was 176.0 MB in the beginning and 165.5 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 115.09 ms. Allocated memory is still 198.7 MB. Free memory was 165.5 MB in the beginning and 159.8 MB in the end (delta: 5.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...