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-b03553c [2019-08-05 18:12:10,437 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 18:12:10,439 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 18:12:10,451 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 18:12:10,451 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 18:12:10,452 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 18:12:10,454 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 18:12:10,456 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 18:12:10,457 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 18:12:10,458 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 18:12:10,459 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 18:12:10,460 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 18:12:10,460 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 18:12:10,461 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 18:12:10,462 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 18:12:10,464 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 18:12:10,464 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 18:12:10,465 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 18:12:10,467 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 18:12:10,470 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 18:12:10,471 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 18:12:10,473 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 18:12:10,474 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 18:12:10,475 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 18:12:10,477 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 18:12:10,478 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 18:12:10,478 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 18:12:10,479 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 18:12:10,480 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 18:12:10,481 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 18:12:10,481 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 18:12:10,482 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 18:12:10,483 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 18:12:10,483 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 18:12:10,485 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 18:12:10,485 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 18:12:10,486 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 18:12:10,486 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 18:12:10,488 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 18:12:10,490 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 18:12:10,491 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 18:12:10,534 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 18:12:10,553 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 18:12:10,556 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 18:12:10,559 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 18:12:10,560 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 18:12:10,561 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/InvariantChecking/showcase/2019ProgVerif-Sheet12Ex04-Minimum.bpl [2019-08-05 18:12:10,561 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/InvariantChecking/showcase/2019ProgVerif-Sheet12Ex04-Minimum.bpl' [2019-08-05 18:12:10,601 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 18:12:10,602 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-05 18:12:10,603 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 18:12:10,603 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 18:12:10,603 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 18:12:10,628 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "2019ProgVerif-Sheet12Ex04-Minimum.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:12:10" (1/1) ... [2019-08-05 18:12:10,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "2019ProgVerif-Sheet12Ex04-Minimum.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:12:10" (1/1) ... [2019-08-05 18:12:10,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "2019ProgVerif-Sheet12Ex04-Minimum.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:12:10" (1/1) ... [2019-08-05 18:12:10,641 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "2019ProgVerif-Sheet12Ex04-Minimum.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:12:10" (1/1) ... [2019-08-05 18:12:10,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "2019ProgVerif-Sheet12Ex04-Minimum.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:12:10" (1/1) ... [2019-08-05 18:12:10,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "2019ProgVerif-Sheet12Ex04-Minimum.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:12:10" (1/1) ... [2019-08-05 18:12:10,656 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "2019ProgVerif-Sheet12Ex04-Minimum.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:12:10" (1/1) ... [2019-08-05 18:12:10,657 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 18:12:10,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 18:12:10,660 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 18:12:10,660 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 18:12:10,663 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "2019ProgVerif-Sheet12Ex04-Minimum.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:12:10" (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 18:12:10,738 INFO L124 BoogieDeclarations]: Specification and implementation of procedure findmin given in one single declaration [2019-08-05 18:12:10,738 INFO L130 BoogieDeclarations]: Found specification of procedure findmin [2019-08-05 18:12:10,739 INFO L138 BoogieDeclarations]: Found implementation of procedure findmin [2019-08-05 18:12:10,812 WARN L731 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-08-05 18:12:11,049 INFO L275 CfgBuilder]: Using library mode [2019-08-05 18:12:11,049 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 18:12:11,055 INFO L202 PluginConnector]: Adding new model 2019ProgVerif-Sheet12Ex04-Minimum.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 06:12:11 BoogieIcfgContainer [2019-08-05 18:12:11,055 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 18:12:11,056 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-05 18:12:11,056 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-05 18:12:11,056 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-05 18:12:11,059 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 05.08 06:12:11" (1/1) ... [2019-08-05 18:12:11,075 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-05 18:12:11,085 INFO L155 IcfgInterpreter]: Building call graph [2019-08-05 18:12:11,096 INFO L160 IcfgInterpreter]: Initial procedures are [findmin] [2019-08-05 18:12:11,104 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-05 18:12:11,105 INFO L185 IcfgInterpreter]: Interpreting procedure findmin with input of size 1 [2019-08-05 18:12:11,284 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-05 18:12:11,285 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-05 18:12:11,288 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))) [2019-08-05 18:12:11,289 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-05 18:12:11,297 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-05 18:12:11,300 INFO L168 Benchmark]: Toolchain (without parser) took 696.74 ms. Allocated memory is still 138.9 MB. Free memory was 106.1 MB in the beginning and 84.1 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2019-08-05 18:12:11,301 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory is still 106.9 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 18:12:11,302 INFO L168 Benchmark]: Boogie Preprocessor took 54.66 ms. Allocated memory is still 138.9 MB. Free memory was 105.6 MB in the beginning and 103.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-08-05 18:12:11,304 INFO L168 Benchmark]: RCFGBuilder took 395.38 ms. Allocated memory is still 138.9 MB. Free memory was 103.8 MB in the beginning and 91.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. [2019-08-05 18:12:11,305 INFO L168 Benchmark]: Symbolic Interpretation took 241.43 ms. Allocated memory is still 138.9 MB. Free memory was 91.7 MB in the beginning and 84.1 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 7.1 GB. [2019-08-05 18:12:11,308 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 138.9 MB. Free memory is still 106.9 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 54.66 ms. Allocated memory is still 138.9 MB. Free memory was 105.6 MB in the beginning and 103.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 395.38 ms. Allocated memory is still 138.9 MB. Free memory was 103.8 MB in the beginning and 91.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 241.43 ms. Allocated memory is still 138.9 MB. Free memory was 91.7 MB in the beginning and 84.1 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...