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 0.1.24-4ddfff8 [2019-08-09 14:13:32,474 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-09 14:13:32,476 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-09 14:13:32,493 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-09 14:13:32,493 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-09 14:13:32,496 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-09 14:13:32,498 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-09 14:13:32,500 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-09 14:13:32,511 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-09 14:13:32,512 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-09 14:13:32,513 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-09 14:13:32,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-09 14:13:32,517 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-09 14:13:32,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-09 14:13:32,518 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-09 14:13:32,521 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-09 14:13:32,523 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-09 14:13:32,523 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-09 14:13:32,525 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-09 14:13:32,532 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-09 14:13:32,534 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-09 14:13:32,536 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-09 14:13:32,538 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-09 14:13:32,539 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-09 14:13:32,541 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-09 14:13:32,541 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-09 14:13:32,542 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-09 14:13:32,543 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-09 14:13:32,543 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-09 14:13:32,544 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-09 14:13:32,544 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-09 14:13:32,545 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-09 14:13:32,546 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-09 14:13:32,546 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-09 14:13:32,547 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-09 14:13:32,547 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-09 14:13:32,548 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-09 14:13:32,549 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-09 14:13:32,549 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-09 14:13:32,550 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-09 14:13:32,551 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-09 14:13:32,585 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-09 14:13:32,597 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-09 14:13:32,600 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-09 14:13:32,602 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-09 14:13:32,602 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-09 14:13:32,603 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/InvariantChecking/showcase/2019ProgVerif-Sheet12Ex04-Minimum.bpl [2019-08-09 14:13:32,603 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/InvariantChecking/showcase/2019ProgVerif-Sheet12Ex04-Minimum.bpl' [2019-08-09 14:13:32,637 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-09 14:13:32,639 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-09 14:13:32,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-09 14:13:32,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-09 14:13:32,640 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-09 14:13:32,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "2019ProgVerif-Sheet12Ex04-Minimum.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:13:32" (1/1) ... [2019-08-09 14:13:32,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "2019ProgVerif-Sheet12Ex04-Minimum.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:13:32" (1/1) ... [2019-08-09 14:13:32,673 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "2019ProgVerif-Sheet12Ex04-Minimum.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:13:32" (1/1) ... [2019-08-09 14:13:32,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "2019ProgVerif-Sheet12Ex04-Minimum.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:13:32" (1/1) ... [2019-08-09 14:13:32,676 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "2019ProgVerif-Sheet12Ex04-Minimum.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:13:32" (1/1) ... [2019-08-09 14:13:32,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "2019ProgVerif-Sheet12Ex04-Minimum.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:13:32" (1/1) ... [2019-08-09 14:13:32,682 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "2019ProgVerif-Sheet12Ex04-Minimum.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:13:32" (1/1) ... [2019-08-09 14:13:32,684 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-09 14:13:32,685 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-09 14:13:32,685 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-09 14:13:32,685 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-09 14:13:32,686 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "2019ProgVerif-Sheet12Ex04-Minimum.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:13:32" (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 14:13:32,754 INFO L124 BoogieDeclarations]: Specification and implementation of procedure findmin given in one single declaration [2019-08-09 14:13:32,754 INFO L130 BoogieDeclarations]: Found specification of procedure findmin [2019-08-09 14:13:32,754 INFO L138 BoogieDeclarations]: Found implementation of procedure findmin [2019-08-09 14:13:32,827 WARN L731 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-08-09 14:13:33,049 INFO L275 CfgBuilder]: Using library mode [2019-08-09 14:13:33,050 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-09 14:13:33,051 INFO L202 PluginConnector]: Adding new model 2019ProgVerif-Sheet12Ex04-Minimum.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.08 02:13:33 BoogieIcfgContainer [2019-08-09 14:13:33,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-09 14:13:33,052 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-09 14:13:33,052 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-09 14:13:33,052 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-09 14:13:33,053 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 09.08 02:13:33" (1/1) ... [2019-08-09 14:13:33,245 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-09 14:13:33,252 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-09 14:13:33,255 INFO L168 Benchmark]: Toolchain (without parser) took 615.37 ms. Allocated memory is still 132.1 MB. Free memory was 108.5 MB in the beginning and 86.1 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2019-08-09 14:13:33,257 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 132.1 MB. Free memory was 109.7 MB in the beginning and 109.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-08-09 14:13:33,258 INFO L168 Benchmark]: Boogie Preprocessor took 44.93 ms. Allocated memory is still 132.1 MB. Free memory was 108.5 MB in the beginning and 106.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2019-08-09 14:13:33,259 INFO L168 Benchmark]: RCFGBuilder took 366.84 ms. Allocated memory is still 132.1 MB. Free memory was 106.2 MB in the beginning and 94.1 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2019-08-09 14:13:33,260 INFO L168 Benchmark]: Symbolic Interpretation took 200.47 ms. Allocated memory is still 132.1 MB. Free memory was 94.1 MB in the beginning and 86.1 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 7.1 GB. [2019-08-09 14:13:33,264 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 49#(exists ((v_skolemized_qj_2 Int) (v_skolemized_qi_2 Int)) (or (and (not (<= findmin_j findmin_hi)) (<= 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))) (and (<= v_skolemized_qi_2 findmin_hi) (<= findmin_lo v_skolemized_qj_2) (= (select (select findmin_a findmin_lo) findmin_lo) findmin_min) (not (<= findmin_min (select (select findmin_a v_skolemized_qi_2) v_skolemized_qj_2))) (<= findmin_lo findmin_hi) (<= v_skolemized_qj_2 findmin_hi) (<= findmin_lo v_skolemized_qi_2) (not (<= findmin_i findmin_hi)) (= findmin_i findmin_lo)))). 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 132.1 MB. Free memory was 109.7 MB in the beginning and 109.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * Boogie Preprocessor took 44.93 ms. Allocated memory is still 132.1 MB. Free memory was 108.5 MB in the beginning and 106.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 366.84 ms. Allocated memory is still 132.1 MB. Free memory was 106.2 MB in the beginning and 94.1 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 200.47 ms. Allocated memory is still 132.1 MB. Free memory was 94.1 MB in the beginning and 86.1 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...