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/float-newlib/float_req_bl_1250.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-55cd5f5 [2019-08-14 20:07:35,058 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-14 20:07:35,060 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-14 20:07:35,071 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-14 20:07:35,072 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-14 20:07:35,073 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-14 20:07:35,074 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-14 20:07:35,076 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-14 20:07:35,078 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-14 20:07:35,078 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-14 20:07:35,080 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-14 20:07:35,081 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-14 20:07:35,081 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-14 20:07:35,082 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-14 20:07:35,083 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-14 20:07:35,084 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-14 20:07:35,085 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-14 20:07:35,086 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-14 20:07:35,088 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-14 20:07:35,090 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-14 20:07:35,092 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-14 20:07:35,093 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-14 20:07:35,094 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-14 20:07:35,095 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-14 20:07:35,098 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-14 20:07:35,101 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-14 20:07:35,102 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-14 20:07:35,103 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-14 20:07:35,104 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-14 20:07:35,105 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-14 20:07:35,105 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-14 20:07:35,106 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-14 20:07:35,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-14 20:07:35,107 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-14 20:07:35,108 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-14 20:07:35,108 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-14 20:07:35,109 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 20:07:35,124 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-14 20:07:35,124 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-14 20:07:35,126 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-14 20:07:35,126 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-14 20:07:35,126 INFO L138 SettingsManager]: * Use SBE=true [2019-08-14 20:07:35,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-14 20:07:35,127 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-14 20:07:35,127 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-14 20:07:35,127 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-14 20:07:35,127 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-14 20:07:35,127 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-14 20:07:35,127 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-14 20:07:35,128 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-14 20:07:35,128 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-14 20:07:35,128 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-14 20:07:35,128 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-14 20:07:35,128 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-14 20:07:35,129 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-14 20:07:35,129 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-14 20:07:35,129 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-14 20:07:35,129 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-14 20:07:35,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-14 20:07:35,130 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-14 20:07:35,130 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-14 20:07:35,130 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-14 20:07:35,132 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-14 20:07:35,133 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-14 20:07:35,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-14 20:07:35,133 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-14 20:07:35,173 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-14 20:07:35,187 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-14 20:07:35,191 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-14 20:07:35,193 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-14 20:07:35,193 INFO L275 PluginConnector]: CDTParser initialized [2019-08-14 20:07:35,193 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1250.c [2019-08-14 20:07:35,271 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed970dbc2/e333b2dc41c048e9a8709e0c9a2bc0ba/FLAG87e7ba500 [2019-08-14 20:07:35,771 INFO L306 CDTParser]: Found 1 translation units. [2019-08-14 20:07:35,773 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1250.c [2019-08-14 20:07:35,781 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed970dbc2/e333b2dc41c048e9a8709e0c9a2bc0ba/FLAG87e7ba500 [2019-08-14 20:07:36,085 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed970dbc2/e333b2dc41c048e9a8709e0c9a2bc0ba [2019-08-14 20:07:36,097 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-14 20:07:36,099 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-14 20:07:36,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-14 20:07:36,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-14 20:07:36,108 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-14 20:07:36,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 08:07:36" (1/1) ... [2019-08-14 20:07:36,113 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c3f275a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:07:36, skipping insertion in model container [2019-08-14 20:07:36,114 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 08:07:36" (1/1) ... [2019-08-14 20:07:36,121 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-14 20:07:36,140 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-14 20:07:36,324 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-14 20:07:36,328 INFO L188 MainTranslator]: Completed pre-run [2019-08-14 20:07:36,359 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-14 20:07:36,472 INFO L192 MainTranslator]: Completed translation [2019-08-14 20:07:36,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:07:36 WrapperNode [2019-08-14 20:07:36,472 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-14 20:07:36,473 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-14 20:07:36,473 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-14 20:07:36,474 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-14 20:07:36,487 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:07:36" (1/1) ... [2019-08-14 20:07:36,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:07:36" (1/1) ... [2019-08-14 20:07:36,497 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:07:36" (1/1) ... [2019-08-14 20:07:36,497 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:07:36" (1/1) ... [2019-08-14 20:07:36,506 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:07:36" (1/1) ... [2019-08-14 20:07:36,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:07:36" (1/1) ... [2019-08-14 20:07:36,520 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:07:36" (1/1) ... [2019-08-14 20:07:36,525 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-14 20:07:36,526 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-14 20:07:36,526 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-14 20:07:36,526 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-14 20:07:36,527 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:07:36" (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 20:07:36,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-14 20:07:36,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-14 20:07:36,587 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2019-08-14 20:07:36,587 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_float [2019-08-14 20:07:36,587 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2019-08-14 20:07:36,588 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-14 20:07:36,588 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-14 20:07:36,588 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2019-08-14 20:07:36,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-08-14 20:07:36,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-08-14 20:07:36,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-08-14 20:07:36,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-08-14 20:07:36,589 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_float [2019-08-14 20:07:36,589 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2019-08-14 20:07:36,589 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-14 20:07:36,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-14 20:07:36,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-14 20:07:36,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-08-14 20:07:36,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-08-14 20:07:36,888 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-14 20:07:36,889 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-08-14 20:07:36,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.08 08:07:36 BoogieIcfgContainer [2019-08-14 20:07:36,890 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-14 20:07:36,891 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-14 20:07:36,891 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-14 20:07:36,891 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-14 20:07:36,892 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.08 08:07:36" (1/1) ... [2019-08-14 20:07:37,603 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-14 20:07:37,605 INFO L168 Benchmark]: Toolchain (without parser) took 1505.81 ms. Allocated memory was 138.9 MB in the beginning and 198.7 MB in the end (delta: 59.8 MB). Free memory was 86.7 MB in the beginning and 107.9 MB in the end (delta: -21.2 MB). Peak memory consumption was 38.5 MB. Max. memory is 7.1 GB. [2019-08-14 20:07:37,606 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 138.9 MB. Free memory was 105.0 MB in the beginning and 104.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-14 20:07:37,607 INFO L168 Benchmark]: CACSL2BoogieTranslator took 368.68 ms. Allocated memory was 138.9 MB in the beginning and 198.7 MB in the end (delta: 59.8 MB). Free memory was 86.4 MB in the beginning and 176.5 MB in the end (delta: -90.1 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. [2019-08-14 20:07:37,608 INFO L168 Benchmark]: Boogie Preprocessor took 52.12 ms. Allocated memory is still 198.7 MB. Free memory was 176.5 MB in the beginning and 174.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-08-14 20:07:37,609 INFO L168 Benchmark]: RCFGBuilder took 364.71 ms. Allocated memory is still 198.7 MB. Free memory was 174.7 MB in the beginning and 157.1 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 7.1 GB. [2019-08-14 20:07:37,610 INFO L168 Benchmark]: Symbolic Interpretation took 712.43 ms. Allocated memory is still 198.7 MB. Free memory was 157.1 MB in the beginning and 107.9 MB in the end (delta: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 7.1 GB. [2019-08-14 20:07:37,613 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 65]: 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 82#(and (or (= main_~res~0 main_~y~0) (= main_~res~0 main_~x~0)) (= 0 |#NULL.base|) (= |#NULL.offset| 0) (= 0 (select |old(#valid)| 0))). Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 138.9 MB. Free memory was 105.0 MB in the beginning and 104.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 368.68 ms. Allocated memory was 138.9 MB in the beginning and 198.7 MB in the end (delta: 59.8 MB). Free memory was 86.4 MB in the beginning and 176.5 MB in the end (delta: -90.1 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 52.12 ms. Allocated memory is still 198.7 MB. Free memory was 176.5 MB in the beginning and 174.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 364.71 ms. Allocated memory is still 198.7 MB. Free memory was 174.7 MB in the beginning and 157.1 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 712.43 ms. Allocated memory is still 198.7 MB. Free memory was 157.1 MB in the beginning and 107.9 MB in the end (delta: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...