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/nonlinear/Power2-Unsafe.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-3b9210c [2019-08-06 16:54:15,193 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-06 16:54:15,195 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-06 16:54:15,206 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-06 16:54:15,207 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-06 16:54:15,208 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-06 16:54:15,209 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-06 16:54:15,211 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-06 16:54:15,213 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-06 16:54:15,213 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-06 16:54:15,214 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-06 16:54:15,215 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-06 16:54:15,216 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-06 16:54:15,217 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-06 16:54:15,217 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-06 16:54:15,219 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-06 16:54:15,219 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-06 16:54:15,220 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-06 16:54:15,222 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-06 16:54:15,224 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-06 16:54:15,225 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-06 16:54:15,226 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-06 16:54:15,228 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-06 16:54:15,228 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-06 16:54:15,231 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-06 16:54:15,231 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-06 16:54:15,231 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-06 16:54:15,232 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-06 16:54:15,232 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-06 16:54:15,233 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-06 16:54:15,234 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-06 16:54:15,234 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-06 16:54:15,235 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-06 16:54:15,236 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-06 16:54:15,237 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-06 16:54:15,237 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-06 16:54:15,238 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-06 16:54:15,238 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-06 16:54:15,238 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-06 16:54:15,239 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-06 16:54:15,240 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-06 16:54:15,266 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-06 16:54:15,279 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-06 16:54:15,282 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-06 16:54:15,284 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-06 16:54:15,285 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-06 16:54:15,285 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/nonlinear/Power2-Unsafe.bpl [2019-08-06 16:54:15,286 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/nonlinear/Power2-Unsafe.bpl' [2019-08-06 16:54:15,316 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-06 16:54:15,318 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-06 16:54:15,318 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-06 16:54:15,319 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-06 16:54:15,319 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-06 16:54:15,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Power2-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:15" (1/1) ... [2019-08-06 16:54:15,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Power2-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:15" (1/1) ... [2019-08-06 16:54:15,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Power2-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:15" (1/1) ... [2019-08-06 16:54:15,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Power2-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:15" (1/1) ... [2019-08-06 16:54:15,355 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Power2-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:15" (1/1) ... [2019-08-06 16:54:15,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Power2-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:15" (1/1) ... [2019-08-06 16:54:15,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Power2-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:15" (1/1) ... [2019-08-06 16:54:15,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-06 16:54:15,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-06 16:54:15,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-06 16:54:15,363 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-06 16:54:15,364 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Power2-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:15" (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 [2019-08-06 16:54:15,437 INFO L124 BoogieDeclarations]: Specification and implementation of procedure power given in one single declaration [2019-08-06 16:54:15,437 INFO L130 BoogieDeclarations]: Found specification of procedure power [2019-08-06 16:54:15,438 INFO L138 BoogieDeclarations]: Found implementation of procedure power [2019-08-06 16:54:15,513 WARN L731 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-08-06 16:54:15,700 INFO L275 CfgBuilder]: Using library mode [2019-08-06 16:54:15,700 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-06 16:54:15,702 INFO L202 PluginConnector]: Adding new model Power2-Unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 04:54:15 BoogieIcfgContainer [2019-08-06 16:54:15,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-06 16:54:15,703 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-06 16:54:15,703 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-06 16:54:15,703 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-06 16:54:15,704 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "Power2-Unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 04:54:15" (1/1) ... [2019-08-06 16:54:15,716 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-06 16:54:15,719 INFO L155 IcfgInterpreter]: Building call graph [2019-08-06 16:54:15,726 INFO L160 IcfgInterpreter]: Initial procedures are [power] [2019-08-06 16:54:15,734 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-06 16:54:15,736 INFO L185 IcfgInterpreter]: Interpreting procedure power with input of size 1 [2019-08-06 16:54:15,837 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-06 16:54:15,838 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-06 16:54:15,842 INFO L179 IcfgInterpreter]: Location powerErr0ENSURES_VIOLATIONPOST_CONDITION has predicate 23#(and (< 0 (+ power_tmp 1)) (not (>= power_res (* power_a power_b))) (not (< 0 power_tmp)) (exists ((v_power_res_10 Int)) (= power_res (* v_power_res_10 power_a)))) [2019-08-06 16:54:15,844 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-06 16:54:15,850 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-06 16:54:15,853 INFO L168 Benchmark]: Toolchain (without parser) took 534.44 ms. Allocated memory is still 133.7 MB. Free memory was 110.3 MB in the beginning and 93.3 MB in the end (delta: 16.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 7.1 GB. [2019-08-06 16:54:15,855 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 133.7 MB. Free memory was 111.3 MB in the beginning and 111.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-08-06 16:54:15,856 INFO L168 Benchmark]: Boogie Preprocessor took 43.11 ms. Allocated memory is still 133.7 MB. Free memory was 110.1 MB in the beginning and 108.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-08-06 16:54:15,857 INFO L168 Benchmark]: RCFGBuilder took 340.35 ms. Allocated memory is still 133.7 MB. Free memory was 108.0 MB in the beginning and 98.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-08-06 16:54:15,859 INFO L168 Benchmark]: Symbolic Interpretation took 147.63 ms. Allocated memory is still 133.7 MB. Free memory was 98.5 MB in the beginning and 93.3 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2019-08-06 16:54:15,863 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 0.20 ms. Allocated memory is still 133.7 MB. Free memory was 111.3 MB in the beginning and 111.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * Boogie Preprocessor took 43.11 ms. Allocated memory is still 133.7 MB. Free memory was 110.1 MB in the beginning and 108.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 340.35 ms. Allocated memory is still 133.7 MB. Free memory was 108.0 MB in the beginning and 98.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 147.63 ms. Allocated memory is still 133.7 MB. Free memory was 98.5 MB in the beginning and 93.3 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...