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-benchs/drift_tenth.c.p+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-2989841 [2019-08-10 01:26:34,707 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-10 01:26:34,709 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-10 01:26:34,726 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-10 01:26:34,727 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-10 01:26:34,728 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-10 01:26:34,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-10 01:26:34,731 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-10 01:26:34,732 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-10 01:26:34,733 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-10 01:26:34,734 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-10 01:26:34,735 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-10 01:26:34,736 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-10 01:26:34,737 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-10 01:26:34,737 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-10 01:26:34,739 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-10 01:26:34,739 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-10 01:26:34,740 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-10 01:26:34,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-10 01:26:34,744 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-10 01:26:34,745 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-10 01:26:34,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-10 01:26:34,748 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-10 01:26:34,748 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-10 01:26:34,751 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-10 01:26:34,758 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-10 01:26:34,759 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-10 01:26:34,760 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-10 01:26:34,760 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 [2019-08-10 01:26:34,781 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-10 01:26:34,783 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-10 01:26:34,785 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-10 01:26:34,785 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-10 01:26:34,785 INFO L138 SettingsManager]: * Use SBE=true [2019-08-10 01:26:34,786 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-10 01:26:34,786 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-10 01:26:34,786 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-10 01:26:34,786 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-10 01:26:34,786 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-10 01:26:34,787 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-10 01:26:34,787 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-10 01:26:34,787 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-10 01:26:34,787 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-10 01:26:34,788 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-10 01:26:34,788 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-10 01:26:34,788 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-10 01:26:34,788 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-10 01:26:34,788 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-10 01:26:34,789 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-10 01:26:34,789 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-10 01:26:34,789 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-10 01:26:34,789 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-10 01:26:34,789 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-10 01:26:34,790 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-10 01:26:34,790 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-10 01:26:34,790 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-10 01:26:34,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-10 01:26:34,792 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-10 01:26:34,822 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-10 01:26:34,836 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-10 01:26:34,843 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-10 01:26:34,844 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-10 01:26:34,845 INFO L275 PluginConnector]: CDTParser initialized [2019-08-10 01:26:34,845 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/drift_tenth.c.p+cfa-reducer.c [2019-08-10 01:26:34,916 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03e3dc8d5/96c3e480ff4d48ccbc13af9e644777ed/FLAGa36c5c38a [2019-08-10 01:26:35,347 INFO L306 CDTParser]: Found 1 translation units. [2019-08-10 01:26:35,347 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/drift_tenth.c.p+cfa-reducer.c [2019-08-10 01:26:35,355 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03e3dc8d5/96c3e480ff4d48ccbc13af9e644777ed/FLAGa36c5c38a [2019-08-10 01:26:35,755 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03e3dc8d5/96c3e480ff4d48ccbc13af9e644777ed [2019-08-10 01:26:35,765 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-10 01:26:35,767 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-10 01:26:35,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-10 01:26:35,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-10 01:26:35,772 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-10 01:26:35,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.08 01:26:35" (1/1) ... [2019-08-10 01:26:35,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@584d23b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:26:35, skipping insertion in model container [2019-08-10 01:26:35,776 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.08 01:26:35" (1/1) ... [2019-08-10 01:26:35,784 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-10 01:26:35,801 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-10 01:26:35,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-10 01:26:35,951 INFO L188 MainTranslator]: Completed pre-run [2019-08-10 01:26:35,968 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-10 01:26:35,983 INFO L192 MainTranslator]: Completed translation [2019-08-10 01:26:35,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:26:35 WrapperNode [2019-08-10 01:26:35,983 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-10 01:26:35,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-10 01:26:35,984 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-10 01:26:35,984 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-10 01:26:36,085 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:26:35" (1/1) ... [2019-08-10 01:26:36,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:26:35" (1/1) ... [2019-08-10 01:26:36,091 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:26:35" (1/1) ... [2019-08-10 01:26:36,091 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:26:35" (1/1) ... [2019-08-10 01:26:36,096 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:26:35" (1/1) ... [2019-08-10 01:26:36,100 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:26:35" (1/1) ... [2019-08-10 01:26:36,101 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:26:35" (1/1) ... [2019-08-10 01:26:36,103 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-10 01:26:36,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-10 01:26:36,103 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-10 01:26:36,103 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-10 01:26:36,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:26:35" (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 [2019-08-10 01:26:36,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-10 01:26:36,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-10 01:26:36,156 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-10 01:26:36,156 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-10 01:26:36,156 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-08-10 01:26:36,156 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-10 01:26:36,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-10 01:26:36,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-10 01:26:36,321 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-10 01:26:36,321 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-10 01:26:36,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.08 01:26:36 BoogieIcfgContainer [2019-08-10 01:26:36,322 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-10 01:26:36,323 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-10 01:26:36,323 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-10 01:26:36,323 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-10 01:26:36,324 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.08 01:26:36" (1/1) ... [2019-08-10 01:26:36,428 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-10 01:26:36,435 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-10 01:26:36,439 INFO L168 Benchmark]: Toolchain (without parser) took 670.02 ms. Allocated memory was 140.5 MB in the beginning and 199.2 MB in the end (delta: 58.7 MB). Free memory was 87.6 MB in the beginning and 161.6 MB in the end (delta: -74.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-08-10 01:26:36,440 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 105.6 MB in the beginning and 105.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-10 01:26:36,441 INFO L168 Benchmark]: CACSL2BoogieTranslator took 215.74 ms. Allocated memory is still 140.5 MB. Free memory was 87.4 MB in the beginning and 78.1 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-08-10 01:26:36,442 INFO L168 Benchmark]: Boogie Preprocessor took 118.73 ms. Allocated memory was 140.5 MB in the beginning and 199.2 MB in the end (delta: 58.7 MB). Free memory was 78.1 MB in the beginning and 177.2 MB in the end (delta: -99.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2019-08-10 01:26:36,443 INFO L168 Benchmark]: RCFGBuilder took 219.22 ms. Allocated memory is still 199.2 MB. Free memory was 177.2 MB in the beginning and 167.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-08-10 01:26:36,444 INFO L168 Benchmark]: Symbolic Interpretation took 112.23 ms. Allocated memory is still 199.2 MB. Free memory was 167.3 MB in the beginning and 161.6 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 7.1 GB. [2019-08-10 01:26:36,449 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 27]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Interpreter reached this location of interest. Location might be reachable. Predicate is 30#(and (not (< main_~main__i~0 10)) (= main_~__VERIFIER_assert__cond~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 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 105.6 MB in the beginning and 105.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 215.74 ms. Allocated memory is still 140.5 MB. Free memory was 87.4 MB in the beginning and 78.1 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.73 ms. Allocated memory was 140.5 MB in the beginning and 199.2 MB in the end (delta: 58.7 MB). Free memory was 78.1 MB in the beginning and 177.2 MB in the end (delta: -99.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 219.22 ms. Allocated memory is still 199.2 MB. Free memory was 177.2 MB in the beginning and 167.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 112.23 ms. Allocated memory is still 199.2 MB. Free memory was 167.3 MB in the beginning and 161.6 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...