java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AbstractInterpretationC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/float-benchs/Muller_Kahan.c.p+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-11 16:03:17,723 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-11 16:03:17,725 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-11 16:03:17,737 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-11 16:03:17,746 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-11 16:03:17,747 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-11 16:03:17,748 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-11 16:03:17,749 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-11 16:03:17,750 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-11 16:03:17,750 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-11 16:03:17,752 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-11 16:03:17,754 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-11 16:03:17,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-11 16:03:17,757 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-11 16:03:17,758 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-11 16:03:17,758 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-11 16:03:17,760 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-11 16:03:17,770 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-11 16:03:17,771 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-11 16:03:17,772 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-11 16:03:17,772 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-11 16:03:17,794 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-11 16:03:17,794 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-11 16:03:17,794 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-11 16:03:17,795 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-11 16:03:17,795 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-11 16:03:17,795 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-11 16:03:17,796 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-11 16:03:17,796 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-11 16:03:17,796 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-11 16:03:17,796 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-11 16:03:17,797 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-11 16:03:17,797 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-11 16:03:17,797 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-11 16:03:17,798 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-11 16:03:17,798 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-11 16:03:17,798 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-11 16:03:17,798 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-11 16:03:17,798 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-11 16:03:17,799 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-11 16:03:17,799 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-11 16:03:17,799 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-11 16:03:17,800 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-11 16:03:17,801 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-11 16:03:17,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-11 16:03:17,801 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-11 16:03:17,801 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-11 16:03:17,802 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-11 16:03:17,802 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-11 16:03:17,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-11 16:03:17,802 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-11 16:03:17,852 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-11 16:03:17,864 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-11 16:03:17,867 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-11 16:03:17,869 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-11 16:03:17,869 INFO L275 PluginConnector]: CDTParser initialized [2019-09-11 16:03:17,870 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/Muller_Kahan.c.p+cfa-reducer.c [2019-09-11 16:03:17,927 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/355559dcf/28eaae69536a464789e3edbb7025783e/FLAG94b7b521f [2019-09-11 16:03:18,328 INFO L306 CDTParser]: Found 1 translation units. [2019-09-11 16:03:18,328 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/Muller_Kahan.c.p+cfa-reducer.c [2019-09-11 16:03:18,334 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/355559dcf/28eaae69536a464789e3edbb7025783e/FLAG94b7b521f [2019-09-11 16:03:18,746 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/355559dcf/28eaae69536a464789e3edbb7025783e [2019-09-11 16:03:18,755 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-11 16:03:18,757 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-11 16:03:18,758 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-11 16:03:18,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-11 16:03:18,762 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-11 16:03:18,763 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:03:18" (1/1) ... [2019-09-11 16:03:18,766 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@445f4559 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:03:18, skipping insertion in model container [2019-09-11 16:03:18,766 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:03:18" (1/1) ... [2019-09-11 16:03:18,773 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-11 16:03:18,790 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-11 16:03:18,968 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:03:18,973 INFO L188 MainTranslator]: Completed pre-run [2019-09-11 16:03:18,987 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:03:19,001 INFO L192 MainTranslator]: Completed translation [2019-09-11 16:03:19,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:03:19 WrapperNode [2019-09-11 16:03:19,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-11 16:03:19,002 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-11 16:03:19,002 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-11 16:03:19,003 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-11 16:03:19,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:03:19" (1/1) ... [2019-09-11 16:03:19,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:03:19" (1/1) ... [2019-09-11 16:03:19,110 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:03:19" (1/1) ... [2019-09-11 16:03:19,111 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:03:19" (1/1) ... [2019-09-11 16:03:19,114 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:03:19" (1/1) ... [2019-09-11 16:03:19,117 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:03:19" (1/1) ... [2019-09-11 16:03:19,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:03:19" (1/1) ... [2019-09-11 16:03:19,119 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-11 16:03:19,119 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-11 16:03:19,119 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-11 16:03:19,120 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-11 16:03:19,120 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:03:19" (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 [2019-09-11 16:03:19,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-11 16:03:19,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-11 16:03:19,171 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-11 16:03:19,171 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-11 16:03:19,171 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-11 16:03:19,171 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-11 16:03:19,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-11 16:03:19,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-11 16:03:19,341 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-11 16:03:19,342 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-11 16:03:19,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:03:19 BoogieIcfgContainer [2019-09-11 16:03:19,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-11 16:03:19,344 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-11 16:03:19,344 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-11 16:03:19,344 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-11 16:03:19,345 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:03:19" (1/1) ... [2019-09-11 16:03:19,374 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-11 16:03:19,477 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator COMPLT has no precise implementation. [2019-09-11 16:03:19,479 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator COMPGT has no precise implementation. [2019-09-11 16:03:19,493 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-11 16:03:19,514 INFO L272 AbstractInterpreter]: Visited 21 different actions 44 times. Merged at 6 different actions 14 times. Widened at 1 different actions 3 times. Performed 121 root evaluator evaluations with a maximum evaluation depth of 4. Performed 121 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 2 different actions. Largest state had 10 variables. [2019-09-11 16:03:19,514 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-11 16:03:19,517 INFO L168 Benchmark]: Toolchain (without parser) took 759.05 ms. Allocated memory was 141.6 MB in the beginning and 200.8 MB in the end (delta: 59.2 MB). Free memory was 88.4 MB in the beginning and 158.7 MB in the end (delta: -70.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-11 16:03:19,517 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 141.6 MB. Free memory is still 106.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-11 16:03:19,518 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.48 ms. Allocated memory is still 141.6 MB. Free memory was 88.0 MB in the beginning and 79.1 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. [2019-09-11 16:03:19,520 INFO L168 Benchmark]: Boogie Preprocessor took 116.63 ms. Allocated memory was 141.6 MB in the beginning and 200.8 MB in the end (delta: 59.2 MB). Free memory was 78.7 MB in the beginning and 178.4 MB in the end (delta: -99.7 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2019-09-11 16:03:19,521 INFO L168 Benchmark]: RCFGBuilder took 224.10 ms. Allocated memory is still 200.8 MB. Free memory was 178.4 MB in the beginning and 167.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2019-09-11 16:03:19,522 INFO L168 Benchmark]: Abstract Interpretation took 170.35 ms. Allocated memory is still 200.8 MB. Free memory was 167.4 MB in the beginning and 158.7 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 7.1 GB. [2019-09-11 16:03:19,526 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 141.6 MB. Free memory is still 106.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 243.48 ms. Allocated memory is still 141.6 MB. Free memory was 88.0 MB in the beginning and 79.1 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.63 ms. Allocated memory was 141.6 MB in the beginning and 200.8 MB in the end (delta: 59.2 MB). Free memory was 78.7 MB in the beginning and 178.4 MB in the end (delta: -99.7 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 224.10 ms. Allocated memory is still 200.8 MB. Free memory was 178.4 MB in the beginning and 167.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 170.35 ms. Allocated memory is still 200.8 MB. Free memory was 167.4 MB in the beginning and 158.7 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 39]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: abstract domain could reach this error location. Possible FailurePath: [L1] int __return_main; [L7] double main__x0; [L8] double main__x1; [L9] double main__x2; [L10] int main__i; [L11] main__x0 = 5.5 [L12] main__x1 = 5.545454545454546 [L13] main__i = 0 [L15] COND TRUE main__i < 100 [L17] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1) [L18] main__x0 = main__x1 [L19] main__x1 = main__x2 [L20] main__i = main__i + 1 [L15] COND TRUE main__i < 100 [L17] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1) [L18] main__x0 = main__x1 [L19] main__x1 = main__x2 [L20] main__i = main__i + 1 [L15] COND TRUE main__i < 100 [L17] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1) [L18] main__x0 = main__x1 [L19] main__x1 = main__x2 [L20] main__i = main__i + 1 [L15] COND TRUE main__i < 100 [L17] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1) [L18] main__x0 = main__x1 [L19] main__x1 = main__x2 [L20] main__i = main__i + 1 [L15] COND TRUE main__i < 100 [L17] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1) [L18] main__x0 = main__x1 [L19] main__x1 = main__x2 [L20] main__i = main__i + 1 [L15] COND TRUE main__i < 100 [L17] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1) [L18] main__x0 = main__x1 [L19] main__x1 = main__x2 [L20] main__i = main__i + 1 [L15] COND TRUE main__i < 100 [L17] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1) [L18] main__x0 = main__x1 [L19] main__x1 = main__x2 [L20] main__i = main__i + 1 [L15] COND FALSE !(main__i < 100) [L25] int main____CPAchecker_TMP_0; [L26] COND FALSE !(main__x0 >= 99.0) [L51] main____CPAchecker_TMP_0 = 0 [L33] int __tmp_1; [L34] __tmp_1 = main____CPAchecker_TMP_0 [L35] int __VERIFIER_assert__cond; [L36] __VERIFIER_assert__cond = __tmp_1 [L37] COND TRUE __VERIFIER_assert__cond == 0 [L39] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...