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-Sheet12Ex04-Minimum.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-3b9210c [2019-08-06 16:54:18,582 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-06 16:54:18,584 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-06 16:54:18,596 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-06 16:54:18,596 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-06 16:54:18,597 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-06 16:54:18,599 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-06 16:54:18,601 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-06 16:54:18,602 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-06 16:54:18,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-06 16:54:18,604 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-06 16:54:18,606 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-06 16:54:18,606 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-06 16:54:18,607 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-06 16:54:18,608 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-06 16:54:18,609 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-06 16:54:18,610 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-06 16:54:18,611 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-06 16:54:18,613 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-06 16:54:18,616 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-06 16:54:18,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-06 16:54:18,619 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-06 16:54:18,620 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-06 16:54:18,621 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-06 16:54:18,624 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-06 16:54:18,625 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-06 16:54:18,625 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-06 16:54:18,626 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-06 16:54:18,627 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-06 16:54:18,628 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-06 16:54:18,628 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-06 16:54:18,629 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-06 16:54:18,630 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-06 16:54:18,631 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-06 16:54:18,632 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-06 16:54:18,632 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-06 16:54:18,633 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-06 16:54:18,633 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-06 16:54:18,634 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-06 16:54:18,635 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-06 16:54:18,636 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-06 16:54:18,666 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-06 16:54:18,683 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-06 16:54:18,686 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-06 16:54:18,688 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-06 16:54:18,690 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-06 16:54:18,691 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/InvariantChecking/showcase/2019ProgVerif-Sheet12Ex04-Minimum.bpl [2019-08-06 16:54:18,691 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/InvariantChecking/showcase/2019ProgVerif-Sheet12Ex04-Minimum.bpl' [2019-08-06 16:54:18,731 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-06 16:54:18,733 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-06 16:54:18,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-06 16:54:18,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-06 16:54:18,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-06 16:54:18,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "2019ProgVerif-Sheet12Ex04-Minimum.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:18" (1/1) ... [2019-08-06 16:54:18,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "2019ProgVerif-Sheet12Ex04-Minimum.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:18" (1/1) ... [2019-08-06 16:54:18,771 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "2019ProgVerif-Sheet12Ex04-Minimum.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:18" (1/1) ... [2019-08-06 16:54:18,771 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "2019ProgVerif-Sheet12Ex04-Minimum.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:18" (1/1) ... [2019-08-06 16:54:18,774 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "2019ProgVerif-Sheet12Ex04-Minimum.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:18" (1/1) ... [2019-08-06 16:54:18,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "2019ProgVerif-Sheet12Ex04-Minimum.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:18" (1/1) ... [2019-08-06 16:54:18,784 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "2019ProgVerif-Sheet12Ex04-Minimum.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:18" (1/1) ... [2019-08-06 16:54:18,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-06 16:54:18,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-06 16:54:18,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-06 16:54:18,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-06 16:54:18,792 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "2019ProgVerif-Sheet12Ex04-Minimum.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:18" (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 16:54:18,859 INFO L124 BoogieDeclarations]: Specification and implementation of procedure findmin given in one single declaration [2019-08-06 16:54:18,860 INFO L130 BoogieDeclarations]: Found specification of procedure findmin [2019-08-06 16:54:18,860 INFO L138 BoogieDeclarations]: Found implementation of procedure findmin [2019-08-06 16:54:18,933 WARN L731 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-08-06 16:54:19,212 INFO L275 CfgBuilder]: Using library mode [2019-08-06 16:54:19,213 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-06 16:54:19,218 INFO L202 PluginConnector]: Adding new model 2019ProgVerif-Sheet12Ex04-Minimum.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 04:54:19 BoogieIcfgContainer [2019-08-06 16:54:19,218 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-06 16:54:19,218 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-06 16:54:19,219 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-06 16:54:19,219 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-06 16:54:19,221 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "2019ProgVerif-Sheet12Ex04-Minimum.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 04:54:19" (1/1) ... [2019-08-06 16:54:19,235 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-06 16:54:19,243 INFO L155 IcfgInterpreter]: Building call graph [2019-08-06 16:54:19,252 INFO L160 IcfgInterpreter]: Initial procedures are [findmin] [2019-08-06 16:54:19,263 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-06 16:54:19,265 INFO L185 IcfgInterpreter]: Interpreting procedure findmin with input of size 1 [2019-08-06 16:54:19,460 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-06 16:54:19,460 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-06 16:54:19,463 INFO L179 IcfgInterpreter]: Location findminErr0ENSURES_VIOLATIONPOST_CONDITION has predicate 49#(and (not (<= findmin_j findmin_hi)) (<= findmin_j (+ findmin_hi 1)) (or (<= findmin_min (select (select findmin_a (+ findmin_i (- 1))) (+ findmin_j (- 1)))) (and (= findmin_min (select (select findmin_a (+ findmin_i (- 1))) (+ findmin_j (- 1)))) (exists ((v_findmin_min_22 Int)) (< (select (select findmin_a (+ findmin_i (- 1))) (+ findmin_j (- 1))) v_findmin_min_22)))) (exists ((v_skolemized_qj_2 Int) (v_skolemized_qi_2 Int)) (and (<= v_skolemized_qi_2 findmin_hi) (<= findmin_lo v_skolemized_qj_2) (not (<= findmin_min (select (select findmin_a v_skolemized_qi_2) v_skolemized_qj_2))) (<= v_skolemized_qj_2 findmin_hi) (<= findmin_lo v_skolemized_qi_2))) (not (<= findmin_i findmin_hi))) [2019-08-06 16:54:19,464 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-06 16:54:19,471 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-06 16:54:19,474 INFO L168 Benchmark]: Toolchain (without parser) took 740.85 ms. Allocated memory is still 130.0 MB. Free memory was 106.5 MB in the beginning and 84.5 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2019-08-06 16:54:19,476 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 130.0 MB. Free memory was 107.7 MB in the beginning and 107.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-08-06 16:54:19,477 INFO L168 Benchmark]: Boogie Preprocessor took 51.63 ms. Allocated memory is still 130.0 MB. Free memory was 106.5 MB in the beginning and 104.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-08-06 16:54:19,478 INFO L168 Benchmark]: RCFGBuilder took 430.08 ms. Allocated memory is still 130.0 MB. Free memory was 104.1 MB in the beginning and 92.2 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. [2019-08-06 16:54:19,479 INFO L168 Benchmark]: Symbolic Interpretation took 253.05 ms. Allocated memory is still 130.0 MB. Free memory was 92.0 MB in the beginning and 84.5 MB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 7.1 GB. [2019-08-06 16:54:19,483 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.. Possible FailurePath: * 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 130.0 MB. Free memory was 107.7 MB in the beginning and 107.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * Boogie Preprocessor took 51.63 ms. Allocated memory is still 130.0 MB. Free memory was 106.5 MB in the beginning and 104.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 430.08 ms. Allocated memory is still 130.0 MB. Free memory was 104.1 MB in the beginning and 92.2 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 253.05 ms. Allocated memory is still 130.0 MB. Free memory was 92.0 MB in the beginning and 84.5 MB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...