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/InvariantChecking/showcase/2019ProgVerif-Sheet12Ex03-Square.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-4ddfff8 [2019-08-09 14:13:35,602 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-09 14:13:35,604 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-09 14:13:35,615 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-09 14:13:35,615 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-09 14:13:35,616 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-09 14:13:35,618 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-09 14:13:35,620 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-09 14:13:35,621 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-09 14:13:35,622 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-09 14:13:35,623 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-09 14:13:35,624 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-09 14:13:35,625 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-09 14:13:35,626 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-09 14:13:35,627 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-09 14:13:35,628 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-09 14:13:35,628 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-09 14:13:35,629 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-09 14:13:35,631 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-09 14:13:35,633 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-09 14:13:35,635 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-09 14:13:35,636 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-09 14:13:35,637 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-09 14:13:35,638 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-09 14:13:35,640 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-09 14:13:35,641 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-09 14:13:35,641 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-09 14:13:35,642 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-09 14:13:35,642 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-09 14:13:35,643 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-09 14:13:35,643 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-09 14:13:35,644 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-09 14:13:35,645 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-09 14:13:35,646 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-09 14:13:35,647 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-09 14:13:35,647 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-09 14:13:35,648 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-09 14:13:35,648 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-09 14:13:35,648 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-09 14:13:35,649 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-09 14:13:35,650 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-09 14:13:35,677 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-09 14:13:35,689 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-09 14:13:35,693 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-09 14:13:35,694 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-09 14:13:35,695 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-09 14:13:35,695 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/InvariantChecking/showcase/2019ProgVerif-Sheet12Ex03-Square.bpl [2019-08-09 14:13:35,696 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/InvariantChecking/showcase/2019ProgVerif-Sheet12Ex03-Square.bpl' [2019-08-09 14:13:35,726 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-09 14:13:35,728 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-09 14:13:35,728 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-09 14:13:35,728 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-09 14:13:35,729 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-09 14:13:35,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "2019ProgVerif-Sheet12Ex03-Square.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:13:35" (1/1) ... [2019-08-09 14:13:35,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "2019ProgVerif-Sheet12Ex03-Square.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:13:35" (1/1) ... [2019-08-09 14:13:35,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "2019ProgVerif-Sheet12Ex03-Square.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:13:35" (1/1) ... [2019-08-09 14:13:35,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "2019ProgVerif-Sheet12Ex03-Square.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:13:35" (1/1) ... [2019-08-09 14:13:35,764 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "2019ProgVerif-Sheet12Ex03-Square.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:13:35" (1/1) ... [2019-08-09 14:13:35,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "2019ProgVerif-Sheet12Ex03-Square.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:13:35" (1/1) ... [2019-08-09 14:13:35,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "2019ProgVerif-Sheet12Ex03-Square.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:13:35" (1/1) ... [2019-08-09 14:13:35,771 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-09 14:13:35,772 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-09 14:13:35,772 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-09 14:13:35,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-09 14:13:35,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "2019ProgVerif-Sheet12Ex03-Square.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:13:35" (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: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 [2019-08-09 14:13:35,840 INFO L124 BoogieDeclarations]: Specification and implementation of procedure square given in one single declaration [2019-08-09 14:13:35,840 INFO L130 BoogieDeclarations]: Found specification of procedure square [2019-08-09 14:13:35,840 INFO L138 BoogieDeclarations]: Found implementation of procedure square [2019-08-09 14:13:35,903 WARN L731 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-08-09 14:13:35,991 INFO L275 CfgBuilder]: Using library mode [2019-08-09 14:13:35,991 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-09 14:13:35,993 INFO L202 PluginConnector]: Adding new model 2019ProgVerif-Sheet12Ex03-Square.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.08 02:13:35 BoogieIcfgContainer [2019-08-09 14:13:35,993 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-09 14:13:35,994 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-09 14:13:35,994 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-09 14:13:35,995 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-09 14:13:35,996 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "2019ProgVerif-Sheet12Ex03-Square.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.08 02:13:35" (1/1) ... [2019-08-09 14:13:36,154 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-09 14:13:36,161 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-09 14:13:36,164 INFO L168 Benchmark]: Toolchain (without parser) took 435.18 ms. Allocated memory is still 133.2 MB. Free memory was 108.3 MB in the beginning and 91.7 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. [2019-08-09 14:13:36,166 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 133.2 MB. Free memory was 109.6 MB in the beginning and 109.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-09 14:13:36,167 INFO L168 Benchmark]: Boogie Preprocessor took 42.90 ms. Allocated memory is still 133.2 MB. Free memory was 108.3 MB in the beginning and 106.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-08-09 14:13:36,168 INFO L168 Benchmark]: RCFGBuilder took 221.64 ms. Allocated memory is still 133.2 MB. Free memory was 106.1 MB in the beginning and 96.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-08-09 14:13:36,169 INFO L168 Benchmark]: Symbolic Interpretation took 167.24 ms. Allocated memory is still 133.2 MB. Free memory was 96.6 MB in the beginning and 91.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2019-08-09 14:13:36,173 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 11]: 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. Predicate is 23#(and (not (<= (* 2 square_n) square_res)) (not (< square_i square_n))). 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 133.2 MB. Free memory was 109.6 MB in the beginning and 109.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * Boogie Preprocessor took 42.90 ms. Allocated memory is still 133.2 MB. Free memory was 108.3 MB in the beginning and 106.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 221.64 ms. Allocated memory is still 133.2 MB. Free memory was 106.1 MB in the beginning and 96.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 167.24 ms. Allocated memory is still 133.2 MB. Free memory was 96.6 MB in the beginning and 91.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...