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/unrolling-tests/ReachDef-NestedLoop.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b03553c [2019-08-05 18:05:55,931 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 18:05:55,936 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 18:05:55,948 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 18:05:55,948 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 18:05:55,949 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 18:05:55,950 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 18:05:55,952 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 18:05:55,954 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 18:05:55,955 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 18:05:55,956 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 18:05:55,957 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 18:05:55,957 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 18:05:55,958 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 18:05:55,959 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 18:05:55,960 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 18:05:55,961 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 18:05:55,962 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 18:05:55,964 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 18:05:55,966 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 18:05:55,968 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 18:05:55,969 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 18:05:55,970 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 18:05:55,971 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 18:05:55,973 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 18:05:55,974 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 18:05:55,974 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 18:05:55,975 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 18:05:55,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 18:05:55,979 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 18:05:55,979 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 18:05:55,980 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 18:05:55,980 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 18:05:55,981 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 18:05:55,982 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 18:05:55,983 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 18:05:55,983 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 18:05:55,984 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 18:05:55,984 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 18:05:55,985 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 18:05:55,986 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 18:05:56,013 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 18:05:56,025 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 18:05:56,029 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 18:05:56,030 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 18:05:56,031 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 18:05:56,031 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/unrolling-tests/ReachDef-NestedLoop.bpl [2019-08-05 18:05:56,032 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/unrolling-tests/ReachDef-NestedLoop.bpl' [2019-08-05 18:05:56,065 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 18:05:56,066 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-05 18:05:56,067 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 18:05:56,067 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 18:05:56,068 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 18:05:56,092 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ReachDef-NestedLoop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:05:56" (1/1) ... [2019-08-05 18:05:56,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ReachDef-NestedLoop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:05:56" (1/1) ... [2019-08-05 18:05:56,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ReachDef-NestedLoop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:05:56" (1/1) ... [2019-08-05 18:05:56,102 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ReachDef-NestedLoop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:05:56" (1/1) ... [2019-08-05 18:05:56,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ReachDef-NestedLoop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:05:56" (1/1) ... [2019-08-05 18:05:56,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ReachDef-NestedLoop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:05:56" (1/1) ... [2019-08-05 18:05:56,110 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ReachDef-NestedLoop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:05:56" (1/1) ... [2019-08-05 18:05:56,111 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 18:05:56,114 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 18:05:56,114 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 18:05:56,114 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 18:05:56,117 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ReachDef-NestedLoop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:05:56" (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 18:05:56,191 INFO L130 BoogieDeclarations]: Found specification of procedure Main [2019-08-05 18:05:56,192 INFO L138 BoogieDeclarations]: Found implementation of procedure Main [2019-08-05 18:05:56,192 INFO L130 BoogieDeclarations]: Found specification of procedure ~init [2019-08-05 18:05:56,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ~init [2019-08-05 18:05:56,485 INFO L275 CfgBuilder]: Using library mode [2019-08-05 18:05:56,486 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-08-05 18:05:56,487 INFO L202 PluginConnector]: Adding new model ReachDef-NestedLoop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 06:05:56 BoogieIcfgContainer [2019-08-05 18:05:56,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 18:05:56,488 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-05 18:05:56,488 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-05 18:05:56,488 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-05 18:05:56,489 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "ReachDef-NestedLoop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 06:05:56" (1/1) ... [2019-08-05 18:05:56,501 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-05 18:05:56,503 INFO L155 IcfgInterpreter]: Building call graph [2019-08-05 18:05:56,510 INFO L160 IcfgInterpreter]: Initial procedures are [Main] [2019-08-05 18:05:56,518 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-05 18:05:56,520 INFO L185 IcfgInterpreter]: Interpreting procedure Main with input of size 1 [2019-08-05 18:05:56,639 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-05 18:05:56,639 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-05 18:05:56,642 INFO L179 IcfgInterpreter]: Location MainErr0ASSERT_VIOLATIONASSERT has predicate 44#(and (= Main_z 2) (not (= Main_z (+ (* (- 1) Main_y) Main_x)))) [2019-08-05 18:05:56,643 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-05 18:05:56,650 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-05 18:05:56,653 INFO L168 Benchmark]: Toolchain (without parser) took 585.86 ms. Allocated memory is still 133.2 MB. Free memory was 109.6 MB in the beginning and 91.9 MB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 7.1 GB. [2019-08-05 18:05:56,655 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 133.2 MB. Free memory was 110.7 MB in the beginning and 110.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-05 18:05:56,656 INFO L168 Benchmark]: Boogie Preprocessor took 44.47 ms. Allocated memory is still 133.2 MB. Free memory was 109.4 MB in the beginning and 107.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-08-05 18:05:56,658 INFO L168 Benchmark]: RCFGBuilder took 373.59 ms. Allocated memory is still 133.2 MB. Free memory was 107.2 MB in the beginning and 97.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-08-05 18:05:56,659 INFO L168 Benchmark]: Symbolic Interpretation took 162.72 ms. Allocated memory is still 133.2 MB. Free memory was 97.9 MB in the beginning and 92.1 MB in the end (delta: 5.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 7.1 GB. [2019-08-05 18:05:56,665 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 23]: 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: * 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 133.2 MB. Free memory was 110.7 MB in the beginning and 110.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * Boogie Preprocessor took 44.47 ms. Allocated memory is still 133.2 MB. Free memory was 109.4 MB in the beginning and 107.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 373.59 ms. Allocated memory is still 133.2 MB. Free memory was 107.2 MB in the beginning and 97.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 162.72 ms. Allocated memory is still 133.2 MB. Free memory was 97.9 MB in the beginning and 92.1 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...