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/2018ProgVerif-Sheet04Ex04.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-3b9210c [2019-08-06 16:54:25,104 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-06 16:54:25,105 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-06 16:54:25,119 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-06 16:54:25,119 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-06 16:54:25,120 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-06 16:54:25,122 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-06 16:54:25,123 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-06 16:54:25,125 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-06 16:54:25,126 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-06 16:54:25,127 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-06 16:54:25,128 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-06 16:54:25,128 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-06 16:54:25,129 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-06 16:54:25,130 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-06 16:54:25,131 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-06 16:54:25,132 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-06 16:54:25,133 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-06 16:54:25,135 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-06 16:54:25,137 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-06 16:54:25,139 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-06 16:54:25,140 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-06 16:54:25,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-06 16:54:25,142 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-06 16:54:25,147 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-06 16:54:25,148 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-06 16:54:25,148 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-06 16:54:25,149 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-06 16:54:25,152 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-06 16:54:25,154 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-06 16:54:25,154 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-06 16:54:25,155 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-06 16:54:25,155 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-06 16:54:25,156 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-06 16:54:25,157 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-06 16:54:25,157 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-06 16:54:25,158 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-06 16:54:25,158 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-06 16:54:25,159 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-06 16:54:25,160 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-06 16:54:25,160 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-06 16:54:25,189 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-06 16:54:25,203 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-06 16:54:25,207 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-06 16:54:25,209 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-06 16:54:25,209 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-06 16:54:25,210 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/InvariantChecking/2018ProgVerif-Sheet04Ex04.bpl [2019-08-06 16:54:25,210 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/InvariantChecking/2018ProgVerif-Sheet04Ex04.bpl' [2019-08-06 16:54:25,237 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-06 16:54:25,238 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-06 16:54:25,239 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-06 16:54:25,239 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-06 16:54:25,239 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-06 16:54:25,266 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "2018ProgVerif-Sheet04Ex04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:25" (1/1) ... [2019-08-06 16:54:25,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "2018ProgVerif-Sheet04Ex04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:25" (1/1) ... [2019-08-06 16:54:25,277 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "2018ProgVerif-Sheet04Ex04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:25" (1/1) ... [2019-08-06 16:54:25,277 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "2018ProgVerif-Sheet04Ex04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:25" (1/1) ... [2019-08-06 16:54:25,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "2018ProgVerif-Sheet04Ex04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:25" (1/1) ... [2019-08-06 16:54:25,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "2018ProgVerif-Sheet04Ex04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:25" (1/1) ... [2019-08-06 16:54:25,290 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "2018ProgVerif-Sheet04Ex04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:25" (1/1) ... [2019-08-06 16:54:25,291 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-06 16:54:25,292 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-06 16:54:25,292 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-06 16:54:25,292 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-06 16:54:25,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "2018ProgVerif-Sheet04Ex04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:25" (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 16:54:25,370 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-08-06 16:54:25,370 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-06 16:54:25,371 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-06 16:54:25,585 INFO L275 CfgBuilder]: Using library mode [2019-08-06 16:54:25,586 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-06 16:54:25,587 INFO L202 PluginConnector]: Adding new model 2018ProgVerif-Sheet04Ex04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 04:54:25 BoogieIcfgContainer [2019-08-06 16:54:25,587 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-06 16:54:25,588 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-06 16:54:25,588 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-06 16:54:25,588 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-06 16:54:25,589 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "2018ProgVerif-Sheet04Ex04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 04:54:25" (1/1) ... [2019-08-06 16:54:25,599 INFO L148 IcfgInterpreter]: Started Sifa with 2 locations of interest [2019-08-06 16:54:25,602 INFO L155 IcfgInterpreter]: Building call graph [2019-08-06 16:54:25,610 INFO L160 IcfgInterpreter]: Initial procedures are [main] [2019-08-06 16:54:25,618 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-06 16:54:25,620 INFO L185 IcfgInterpreter]: Interpreting procedure main with input of size 1 [2019-08-06 16:54:25,729 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-06 16:54:25,729 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-06 16:54:25,732 INFO L179 IcfgInterpreter]: Location mainErr1ASSERT_VIOLATIONASSERT has predicate 27#(and (= main_j main_i) (= main_x 0) (not (= main_y 0)) (or (= main_y main_x) (not (= main_j main_i))) (not (= (+ main_x 1) 0))) [2019-08-06 16:54:25,733 INFO L179 IcfgInterpreter]: Location mainErr0ASSERT_VIOLATIONINVARIANTandASSERT has predicate 33#(and (= main_j main_i) (or (and (not (= (+ main_x 2) 0)) (or (not (= main_j main_i)) (= (+ main_y 1) (+ main_x 1))) (not (= (+ main_x 1) 0))) (and (= main_j main_y) (= main_i main_x))) (not (= main_y main_x))) [2019-08-06 16:54:25,734 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-06 16:54:25,740 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-06 16:54:25,743 INFO L168 Benchmark]: Toolchain (without parser) took 504.12 ms. Allocated memory is still 133.2 MB. Free memory was 109.5 MB in the beginning and 92.3 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 7.1 GB. [2019-08-06 16:54:25,745 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.16 ms. Allocated memory is still 133.2 MB. Free memory was 110.8 MB in the beginning and 110.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-06 16:54:25,746 INFO L168 Benchmark]: Boogie Preprocessor took 52.27 ms. Allocated memory is still 133.2 MB. Free memory was 109.5 MB in the beginning and 107.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-08-06 16:54:25,747 INFO L168 Benchmark]: RCFGBuilder took 295.14 ms. Allocated memory is still 133.2 MB. Free memory was 107.3 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. [2019-08-06 16:54:25,749 INFO L168 Benchmark]: Symbolic Interpretation took 153.17 ms. Allocated memory is still 133.2 MB. Free memory was 97.9 MB in the beginning and 92.3 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 7.1 GB. [2019-08-06 16:54:25,753 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 24]: 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: - UnprovableResult [Line: 18]: Unable to prove that loop invariant is valid and assertion always holds Unable to prove that loop invariant is valid and 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 0.16 ms. Allocated memory is still 133.2 MB. Free memory was 110.8 MB in the beginning and 110.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * Boogie Preprocessor took 52.27 ms. Allocated memory is still 133.2 MB. Free memory was 109.5 MB in the beginning and 107.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 295.14 ms. Allocated memory is still 133.2 MB. Free memory was 107.3 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 153.17 ms. Allocated memory is still 133.2 MB. Free memory was 97.9 MB in the beginning and 92.3 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...