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/recursive/regression/bpl/TwoContracts.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 12:04:44,012 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 12:04:44,014 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 12:04:44,026 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 12:04:44,026 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 12:04:44,027 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 12:04:44,029 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 12:04:44,031 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 12:04:44,033 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 12:04:44,034 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 12:04:44,035 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 12:04:44,036 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 12:04:44,036 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 12:04:44,037 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 12:04:44,038 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 12:04:44,039 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 12:04:44,040 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 12:04:44,041 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 12:04:44,043 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 12:04:44,045 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 12:04:44,047 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 12:04:44,048 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 12:04:44,049 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 12:04:44,050 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 12:04:44,053 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 12:04:44,053 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 12:04:44,053 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 12:04:44,054 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 12:04:44,055 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 12:04:44,056 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 12:04:44,056 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 12:04:44,057 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 12:04:44,058 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 12:04:44,059 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 12:04:44,060 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 12:04:44,060 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 12:04:44,061 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 12:04:44,061 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 12:04:44,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 12:04:44,063 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 12:04:44,064 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 12:04:44,097 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 12:04:44,110 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 12:04:44,113 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 12:04:44,115 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 12:04:44,115 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 12:04:44,116 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/recursive/regression/bpl/TwoContracts.bpl [2019-08-05 12:04:44,116 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/recursive/regression/bpl/TwoContracts.bpl' [2019-08-05 12:04:44,148 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 12:04:44,149 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-05 12:04:44,150 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 12:04:44,150 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 12:04:44,150 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 12:04:44,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "TwoContracts.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:04:44" (1/1) ... [2019-08-05 12:04:44,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "TwoContracts.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:04:44" (1/1) ... [2019-08-05 12:04:44,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "TwoContracts.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:04:44" (1/1) ... [2019-08-05 12:04:44,183 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "TwoContracts.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:04:44" (1/1) ... [2019-08-05 12:04:44,186 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "TwoContracts.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:04:44" (1/1) ... [2019-08-05 12:04:44,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "TwoContracts.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:04:44" (1/1) ... [2019-08-05 12:04:44,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "TwoContracts.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:04:44" (1/1) ... [2019-08-05 12:04:44,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 12:04:44,190 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 12:04:44,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 12:04:44,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 12:04:44,191 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "TwoContracts.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:04:44" (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 12:04:44,265 INFO L130 BoogieDeclarations]: Found specification of procedure caller [2019-08-05 12:04:44,265 INFO L138 BoogieDeclarations]: Found implementation of procedure caller [2019-08-05 12:04:44,266 INFO L130 BoogieDeclarations]: Found specification of procedure callee [2019-08-05 12:04:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure callee [2019-08-05 12:04:44,566 INFO L275 CfgBuilder]: Using library mode [2019-08-05 12:04:44,566 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 12:04:44,567 INFO L202 PluginConnector]: Adding new model TwoContracts.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 12:04:44 BoogieIcfgContainer [2019-08-05 12:04:44,567 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 12:04:44,568 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-05 12:04:44,568 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-05 12:04:44,568 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-05 12:04:44,570 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "TwoContracts.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 12:04:44" (1/1) ... [2019-08-05 12:04:44,582 INFO L148 IcfgInterpreter]: Started Sifa with 2 locations of interest [2019-08-05 12:04:44,587 INFO L155 IcfgInterpreter]: Building call graph [2019-08-05 12:04:44,598 INFO L160 IcfgInterpreter]: Initial procedures are [caller] [2019-08-05 12:04:44,611 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-05 12:04:44,612 INFO L184 IcfgInterpreter]: Interpreting procedure caller with input of size 1 [2019-08-05 12:04:44,839 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-05 12:04:44,840 INFO L176 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-05 12:04:44,843 INFO L178 IcfgInterpreter]: Location callerErr0ASSERT_VIOLATIONASSERT has predicate 14#(and (= caller_x 2) (not (= 1 g))) [2019-08-05 12:04:44,844 INFO L178 IcfgInterpreter]: Location callerErr1ASSERT_VIOLATIONASSERT has predicate 11#false [2019-08-05 12:04:44,870 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-05 12:04:44,876 INFO L168 Benchmark]: Toolchain (without parser) took 722.61 ms. Allocated memory is still 134.2 MB. Free memory was 111.9 MB in the beginning and 94.2 MB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 7.1 GB. [2019-08-05 12:04:44,882 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 134.2 MB. Free memory was 112.9 MB in the beginning and 112.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-08-05 12:04:44,884 INFO L168 Benchmark]: Boogie Preprocessor took 38.98 ms. Allocated memory is still 134.2 MB. Free memory was 111.7 MB in the beginning and 109.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-08-05 12:04:44,888 INFO L168 Benchmark]: RCFGBuilder took 377.80 ms. Allocated memory is still 134.2 MB. Free memory was 109.7 MB in the beginning and 100.0 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-08-05 12:04:44,890 INFO L168 Benchmark]: Symbolic Interpretation took 302.46 ms. Allocated memory is still 134.2 MB. Free memory was 100.0 MB in the beginning and 94.2 MB in the end (delta: 5.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 7.1 GB. [2019-08-05 12:04:44,902 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 18]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Interpreter reached this location of interest. Location might be reachable.. Possible FailurePath: - PositiveResult [Line: 19]: assertion always holds For all program executions holds that assertion always holds at this location * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 134.2 MB. Free memory was 112.9 MB in the beginning and 112.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * Boogie Preprocessor took 38.98 ms. Allocated memory is still 134.2 MB. Free memory was 111.7 MB in the beginning and 109.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 377.80 ms. Allocated memory is still 134.2 MB. Free memory was 109.7 MB in the beginning and 100.0 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 302.46 ms. Allocated memory is still 134.2 MB. Free memory was 100.0 MB in the beginning and 94.2 MB in the end (delta: 5.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...