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-b8c145f [2019-08-05 11:47:50,267 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 11:47:50,269 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 11:47:50,280 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 11:47:50,280 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 11:47:50,282 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 11:47:50,283 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 11:47:50,285 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 11:47:50,286 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 11:47:50,287 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 11:47:50,288 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 11:47:50,289 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 11:47:50,289 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 11:47:50,290 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 11:47:50,291 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 11:47:50,292 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 11:47:50,293 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 11:47:50,294 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 11:47:50,296 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 11:47:50,298 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 11:47:50,300 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 11:47:50,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 11:47:50,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 11:47:50,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 11:47:50,305 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 11:47:50,305 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 11:47:50,306 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 11:47:50,307 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 11:47:50,307 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 11:47:50,308 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 11:47:50,308 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 11:47:50,309 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 11:47:50,310 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 11:47:50,311 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 11:47:50,312 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 11:47:50,312 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 11:47:50,315 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 11:47:50,315 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 11:47:50,316 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 11:47:50,317 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 11:47:50,318 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 11:47:50,371 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 11:47:50,396 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 11:47:50,400 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 11:47:50,402 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 11:47:50,403 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 11:47:50,403 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/InvariantChecking/showcase/2019ProgVerif-Sheet12Ex04-Minimum.bpl [2019-08-05 11:47:50,404 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/InvariantChecking/showcase/2019ProgVerif-Sheet12Ex04-Minimum.bpl' [2019-08-05 11:47:50,441 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 11:47:50,443 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-05 11:47:50,443 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 11:47:50,443 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 11:47:50,443 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 11:47:50,468 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 11:47:50" (1/1) ... [2019-08-05 11:47:50,470 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 11:47:50" (1/1) ... [2019-08-05 11:47:50,479 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 11:47:50" (1/1) ... [2019-08-05 11:47:50,479 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 11:47:50" (1/1) ... [2019-08-05 11:47:50,483 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 11:47:50" (1/1) ... [2019-08-05 11:47:50,488 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 11:47:50" (1/1) ... [2019-08-05 11:47:50,489 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 11:47:50" (1/1) ... [2019-08-05 11:47:50,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 11:47:50,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 11:47:50,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 11:47:50,493 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 11:47:50,493 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 11:47:50" (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 11:47:50,566 INFO L124 BoogieDeclarations]: Specification and implementation of procedure findmin given in one single declaration [2019-08-05 11:47:50,566 INFO L130 BoogieDeclarations]: Found specification of procedure findmin [2019-08-05 11:47:50,566 INFO L138 BoogieDeclarations]: Found implementation of procedure findmin [2019-08-05 11:47:50,639 WARN L731 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-08-05 11:47:50,983 INFO L275 CfgBuilder]: Using library mode [2019-08-05 11:47:50,983 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 11:47:50,985 INFO L202 PluginConnector]: Adding new model 2019ProgVerif-Sheet12Ex04-Minimum.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:47:50 BoogieIcfgContainer [2019-08-05 11:47:50,985 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 11:47:50,985 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-05 11:47:50,985 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-05 11:47:50,986 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-05 11:47:50,995 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 11:47:50" (1/1) ... [2019-08-05 11:47:51,006 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-05 11:47:51,011 INFO L155 IcfgInterpreter]: Building call graph [2019-08-05 11:47:51,024 INFO L160 IcfgInterpreter]: Initial procedures are [findmin] [2019-08-05 11:47:51,033 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-05 11:47:51,034 INFO L184 IcfgInterpreter]: Interpreting procedure findmin with input of size 1 [2019-08-05 11:47:51,230 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 15 [2019-08-05 11:47:51,373 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 18 [2019-08-05 11:47:51,716 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2019-08-05 11:47:51,953 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 60 [2019-08-05 11:47:52,223 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 81 [2019-08-05 11:47:52,380 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 102 [2019-08-05 11:47:52,581 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 123 [2019-08-05 11:47:52,933 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 144 [2019-08-05 11:47:53,698 WARN L188 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 165 [2019-08-05 11:47:54,654 WARN L188 SmtUtils]: Spent 880.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 186 [2019-08-05 11:47:56,899 WARN L188 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 297 DAG size of output: 207 [2019-08-05 11:48:01,426 WARN L188 SmtUtils]: Spent 4.41 s on a formula simplification. DAG size of input: 329 DAG size of output: 228 [2019-08-05 11:48:09,056 WARN L188 SmtUtils]: Spent 7.41 s on a formula simplification. DAG size of input: 361 DAG size of output: 249 [2019-08-05 11:48:51,848 WARN L188 SmtUtils]: Spent 40.22 s on a formula simplification that was a NOOP. DAG size: 393 [2019-08-05 11:48:52,142 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2019-08-05 11:48:52,377 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 101 [2019-08-05 11:48:52,628 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 127 [2019-08-05 11:48:52,931 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 153 [2019-08-05 11:48:53,584 WARN L188 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 179 [2019-08-05 11:48:55,635 WARN L188 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 262 DAG size of output: 205 [2019-08-05 11:48:58,423 WARN L188 SmtUtils]: Spent 2.72 s on a formula simplification. DAG size of input: 299 DAG size of output: 231 [2019-08-05 11:49:09,290 WARN L188 SmtUtils]: Spent 10.33 s on a formula simplification. DAG size of input: 336 DAG size of output: 257 [2019-08-05 11:49:46,321 WARN L188 SmtUtils]: Spent 36.95 s on a formula simplification that was a NOOP. DAG size: 373 [2019-08-05 11:49:46,357 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-05 11:49:46,357 INFO L176 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-05 11:49:46,360 INFO L178 IcfgInterpreter]: Location findminErr0ENSURES_VIOLATIONPOST_CONDITION has predicate 144#(and (not (<= findmin_j findmin_hi)) (<= findmin_j (+ findmin_hi 1)) (<= findmin_min (select (select findmin_a (+ findmin_i (- 1))) (+ findmin_j (- 1)))) (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 11:49:46,367 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-05 11:49:46,369 INFO L168 Benchmark]: Toolchain (without parser) took 115926.36 ms. Allocated memory was 131.6 MB in the beginning and 244.8 MB in the end (delta: 113.2 MB). Free memory was 109.1 MB in the beginning and 144.5 MB in the end (delta: -35.4 MB). Peak memory consumption was 119.4 MB. Max. memory is 7.1 GB. [2019-08-05 11:49:46,370 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 131.6 MB. Free memory was 110.3 MB in the beginning and 110.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-08-05 11:49:46,371 INFO L168 Benchmark]: Boogie Preprocessor took 47.70 ms. Allocated memory is still 131.6 MB. Free memory was 109.1 MB in the beginning and 106.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-08-05 11:49:46,372 INFO L168 Benchmark]: RCFGBuilder took 493.01 ms. Allocated memory is still 131.6 MB. Free memory was 106.7 MB in the beginning and 94.8 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. [2019-08-05 11:49:46,373 INFO L168 Benchmark]: Symbolic Interpretation took 115381.91 ms. Allocated memory was 131.6 MB in the beginning and 244.8 MB in the end (delta: 113.2 MB). Free memory was 94.8 MB in the beginning and 144.5 MB in the end (delta: -49.7 MB). Peak memory consumption was 105.1 MB. Max. memory is 7.1 GB. [2019-08-05 11:49:46,377 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 0.20 ms. Allocated memory is still 131.6 MB. Free memory was 110.3 MB in the beginning and 110.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * Boogie Preprocessor took 47.70 ms. Allocated memory is still 131.6 MB. Free memory was 109.1 MB in the beginning and 106.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 493.01 ms. Allocated memory is still 131.6 MB. Free memory was 106.7 MB in the beginning and 94.8 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 115381.91 ms. Allocated memory was 131.6 MB in the beginning and 244.8 MB in the end (delta: 113.2 MB). Free memory was 94.8 MB in the beginning and 144.5 MB in the end (delta: -49.7 MB). Peak memory consumption was 105.1 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...