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/InvariantSynthesis/Paper_PathInvariants_Fig1_Forward.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b03553c [2019-08-05 18:13:00,771 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 18:13:00,774 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 18:13:00,786 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 18:13:00,787 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 18:13:00,788 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 18:13:00,790 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 18:13:00,792 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 18:13:00,794 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 18:13:00,795 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 18:13:00,796 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 18:13:00,797 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 18:13:00,798 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 18:13:00,799 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 18:13:00,800 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 18:13:00,802 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 18:13:00,803 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 18:13:00,804 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 18:13:00,806 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 18:13:00,809 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 18:13:00,810 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 18:13:00,812 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 18:13:00,813 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 18:13:00,814 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 18:13:00,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 18:13:00,818 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 18:13:00,818 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 18:13:00,819 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 18:13:00,820 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 18:13:00,821 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 18:13:00,821 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 18:13:00,825 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 18:13:00,826 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 18:13:00,827 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 18:13:00,828 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 18:13:00,828 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 18:13:00,829 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 18:13:00,830 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 18:13:00,830 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 18:13:00,831 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 18:13:00,832 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 18:13:00,860 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 18:13:00,878 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 18:13:00,882 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 18:13:00,885 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 18:13:00,885 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 18:13:00,887 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/InvariantSynthesis/Paper_PathInvariants_Fig1_Forward.bpl [2019-08-05 18:13:00,888 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/InvariantSynthesis/Paper_PathInvariants_Fig1_Forward.bpl' [2019-08-05 18:13:00,930 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 18:13:00,932 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-05 18:13:00,932 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 18:13:00,933 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 18:13:00,933 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 18:13:00,960 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Paper_PathInvariants_Fig1_Forward.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:13:00" (1/1) ... [2019-08-05 18:13:00,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Paper_PathInvariants_Fig1_Forward.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:13:00" (1/1) ... [2019-08-05 18:13:00,973 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Paper_PathInvariants_Fig1_Forward.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:13:00" (1/1) ... [2019-08-05 18:13:00,974 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Paper_PathInvariants_Fig1_Forward.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:13:00" (1/1) ... [2019-08-05 18:13:00,978 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Paper_PathInvariants_Fig1_Forward.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:13:00" (1/1) ... [2019-08-05 18:13:00,986 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Paper_PathInvariants_Fig1_Forward.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:13:00" (1/1) ... [2019-08-05 18:13:00,987 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Paper_PathInvariants_Fig1_Forward.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:13:00" (1/1) ... [2019-08-05 18:13:00,989 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 18:13:00,991 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 18:13:00,991 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 18:13:00,991 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 18:13:00,992 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Paper_PathInvariants_Fig1_Forward.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:13:00" (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 18:13:01,069 INFO L124 BoogieDeclarations]: Specification and implementation of procedure forward given in one single declaration [2019-08-05 18:13:01,069 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-08-05 18:13:01,069 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-08-05 18:13:01,342 INFO L275 CfgBuilder]: Using library mode [2019-08-05 18:13:01,342 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 18:13:01,345 INFO L202 PluginConnector]: Adding new model Paper_PathInvariants_Fig1_Forward.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 06:13:01 BoogieIcfgContainer [2019-08-05 18:13:01,346 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 18:13:01,347 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-05 18:13:01,347 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-05 18:13:01,347 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-05 18:13:01,348 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "Paper_PathInvariants_Fig1_Forward.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 06:13:01" (1/1) ... [2019-08-05 18:13:01,365 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-05 18:13:01,369 INFO L155 IcfgInterpreter]: Building call graph [2019-08-05 18:13:01,379 INFO L160 IcfgInterpreter]: Initial procedures are [forward] [2019-08-05 18:13:01,390 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-05 18:13:01,392 INFO L185 IcfgInterpreter]: Interpreting procedure forward with input of size 1 [2019-08-05 18:13:01,513 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-05 18:13:01,514 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-05 18:13:01,517 INFO L179 IcfgInterpreter]: Location forwardErr0ASSERT_VIOLATIONASSERT has predicate 23#(and (not (= (* 3 n) (+ b a))) (< i (+ n 1)) (not (< i n))) [2019-08-05 18:13:01,518 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-05 18:13:01,527 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-05 18:13:01,530 INFO L168 Benchmark]: Toolchain (without parser) took 597.11 ms. Allocated memory is still 132.6 MB. Free memory was 109.1 MB in the beginning and 90.4 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. [2019-08-05 18:13:01,531 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.33 ms. Allocated memory is still 132.6 MB. Free memory was 110.3 MB in the beginning and 110.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-08-05 18:13:01,533 INFO L168 Benchmark]: Boogie Preprocessor took 57.19 ms. Allocated memory is still 132.6 MB. Free memory was 109.1 MB in the beginning and 107.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-08-05 18:13:01,534 INFO L168 Benchmark]: RCFGBuilder took 355.20 ms. Allocated memory is still 132.6 MB. Free memory was 106.8 MB in the beginning and 95.5 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2019-08-05 18:13:01,536 INFO L168 Benchmark]: Symbolic Interpretation took 180.16 ms. Allocated memory is still 132.6 MB. Free memory was 95.5 MB in the beginning and 90.4 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2019-08-05 18:13:01,540 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 27]: 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 0.33 ms. Allocated memory is still 132.6 MB. Free memory was 110.3 MB in the beginning and 110.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * Boogie Preprocessor took 57.19 ms. Allocated memory is still 132.6 MB. Free memory was 109.1 MB in the beginning and 107.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 355.20 ms. Allocated memory is still 132.6 MB. Free memory was 106.8 MB in the beginning and 95.5 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 180.16 ms. Allocated memory is still 132.6 MB. Free memory was 95.5 MB in the beginning and 90.4 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...