java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/Sifa.xml -i ../../../trunk/examples/programs/toy/UselessIncrement.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 11:46:26,797 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 11:46:26,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 11:46:26,815 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 11:46:26,816 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 11:46:26,818 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 11:46:26,819 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 11:46:26,822 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 11:46:26,825 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 11:46:26,831 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 11:46:26,834 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 11:46:26,835 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 11:46:26,835 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 11:46:26,836 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 11:46:26,841 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 11:46:26,842 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 11:46:26,843 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 11:46:26,846 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 11:46:26,850 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 11:46:26,854 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 11:46:26,856 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 11:46:26,859 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 11:46:26,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 11:46:26,863 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 11:46:26,865 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 11:46:26,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 11:46:26,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 11:46:26,867 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 11:46:26,868 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 11:46:26,869 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 11:46:26,870 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 11:46:26,870 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 11:46:26,874 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 11:46:26,875 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 11:46:26,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 11:46:26,877 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 11:46:26,880 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 11:46:26,880 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 11:46:26,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 11:46:26,883 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 11:46:26,884 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 11:46:26,924 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 11:46:26,939 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 11:46:26,945 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 11:46:26,947 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 11:46:26,947 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 11:46:26,948 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/UselessIncrement.bpl [2019-08-05 11:46:26,949 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/UselessIncrement.bpl' [2019-08-05 11:46:26,985 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 11:46:26,986 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-05 11:46:26,987 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 11:46:26,987 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 11:46:26,987 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 11:46:27,013 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "UselessIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:46:26" (1/1) ... [2019-08-05 11:46:27,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "UselessIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:46:26" (1/1) ... [2019-08-05 11:46:27,022 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "UselessIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:46:26" (1/1) ... [2019-08-05 11:46:27,023 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "UselessIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:46:26" (1/1) ... [2019-08-05 11:46:27,027 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "UselessIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:46:26" (1/1) ... [2019-08-05 11:46:27,035 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "UselessIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:46:26" (1/1) ... [2019-08-05 11:46:27,037 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "UselessIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:46:26" (1/1) ... [2019-08-05 11:46:27,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 11:46:27,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 11:46:27,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 11:46:27,040 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 11:46:27,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "UselessIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:46:26" (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:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-08-05 11:46:27,113 INFO L130 BoogieDeclarations]: Found specification of procedure UselessIncrement [2019-08-05 11:46:27,114 INFO L138 BoogieDeclarations]: Found implementation of procedure UselessIncrement [2019-08-05 11:46:27,177 WARN L731 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-08-05 11:46:27,343 INFO L275 CfgBuilder]: Using library mode [2019-08-05 11:46:27,343 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-05 11:46:27,344 INFO L202 PluginConnector]: Adding new model UselessIncrement.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:46:27 BoogieIcfgContainer [2019-08-05 11:46:27,344 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 11:46:27,345 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-05 11:46:27,345 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-05 11:46:27,345 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-05 11:46:27,347 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "UselessIncrement.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:46:27" (1/1) ... [2019-08-05 11:46:27,357 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-05 11:46:27,360 INFO L155 IcfgInterpreter]: Building call graph [2019-08-05 11:46:27,367 INFO L160 IcfgInterpreter]: Initial procedures are [UselessIncrement] [2019-08-05 11:46:27,375 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-05 11:46:27,377 INFO L184 IcfgInterpreter]: Interpreting procedure UselessIncrement with input of size 1 [2019-08-05 11:46:27,559 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2019-08-05 11:46:27,998 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2019-08-05 11:46:28,159 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2019-08-05 11:46:28,519 WARN L188 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2019-08-05 11:46:28,837 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 14 [2019-08-05 11:46:29,286 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-05 11:46:29,287 INFO L176 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-05 11:46:29,289 INFO L178 IcfgInterpreter]: Location UselessIncrementErr0ENSURES_VIOLATIONPOST_CONDITION has predicate 67#(and (= UselessIncrement_z 23) (= UselessIncrement_i 0) (= (+ UselessIncrement_y UselessIncrement_x) UselessIncrement_z)) [2019-08-05 11:46:29,296 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-05 11:46:29,298 INFO L168 Benchmark]: Toolchain (without parser) took 2311.38 ms. Allocated memory was 134.2 MB in the beginning and 169.9 MB in the end (delta: 35.7 MB). Free memory was 110.4 MB in the beginning and 118.0 MB in the end (delta: -7.5 MB). Peak memory consumption was 54.8 MB. Max. memory is 7.1 GB. [2019-08-05 11:46:29,299 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 134.2 MB. Free memory was 111.7 MB in the beginning and 111.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-08-05 11:46:29,300 INFO L168 Benchmark]: Boogie Preprocessor took 52.85 ms. Allocated memory is still 134.2 MB. Free memory was 110.4 MB in the beginning and 108.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-08-05 11:46:29,301 INFO L168 Benchmark]: RCFGBuilder took 304.62 ms. Allocated memory is still 134.2 MB. Free memory was 108.3 MB in the beginning and 98.7 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-08-05 11:46:29,302 INFO L168 Benchmark]: Symbolic Interpretation took 1951.05 ms. Allocated memory was 134.2 MB in the beginning and 169.9 MB in the end (delta: 35.7 MB). Free memory was 98.7 MB in the beginning and 118.0 MB in the end (delta: -19.3 MB). Peak memory consumption was 43.0 MB. Max. memory is 7.1 GB. [2019-08-05 11:46:29,306 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 9]: Unable to prove that procedure postcondition always holds Unable to prove that procedure postcondition always holds Reason: Interpreter reached this location of interest. Location might be reachable.. Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 134.2 MB. Free memory was 111.7 MB in the beginning and 111.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * Boogie Preprocessor took 52.85 ms. Allocated memory is still 134.2 MB. Free memory was 110.4 MB in the beginning and 108.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 304.62 ms. Allocated memory is still 134.2 MB. Free memory was 108.3 MB in the beginning and 98.7 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 1951.05 ms. Allocated memory was 134.2 MB in the beginning and 169.9 MB in the end (delta: 35.7 MB). Free memory was 98.7 MB in the beginning and 118.0 MB in the end (delta: -19.3 MB). Peak memory consumption was 43.0 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...