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/20170304-DifficultPathPrograms/down.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-04 21:56:15,214 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-04 21:56:15,216 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-04 21:56:15,229 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-04 21:56:15,229 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-04 21:56:15,230 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-04 21:56:15,232 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-04 21:56:15,234 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-04 21:56:15,236 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-04 21:56:15,237 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-04 21:56:15,238 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-04 21:56:15,238 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-04 21:56:15,238 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-04 21:56:15,239 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-04 21:56:15,240 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-04 21:56:15,242 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-04 21:56:15,242 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-04 21:56:15,243 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-04 21:56:15,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-04 21:56:15,247 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-04 21:56:15,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-04 21:56:15,250 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-04 21:56:15,252 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-04 21:56:15,253 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-04 21:56:15,255 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-04 21:56:15,256 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-04 21:56:15,256 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-04 21:56:15,257 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-04 21:56:15,257 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-04 21:56:15,259 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-04 21:56:15,259 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-04 21:56:15,260 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-04 21:56:15,260 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-04 21:56:15,261 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-04 21:56:15,262 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-04 21:56:15,263 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-04 21:56:15,263 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-04 21:56:15,264 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-04 21:56:15,264 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-04 21:56:15,265 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-04 21:56:15,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-04 21:56:15,293 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-04 21:56:15,306 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-04 21:56:15,310 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-04 21:56:15,311 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-04 21:56:15,312 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-04 21:56:15,313 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/down.i_4.bpl [2019-08-04 21:56:15,313 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/down.i_4.bpl' [2019-08-04 21:56:15,357 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-04 21:56:15,359 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-04 21:56:15,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-04 21:56:15,360 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-04 21:56:15,360 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-04 21:56:15,387 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "down.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:56:15" (1/1) ... [2019-08-04 21:56:15,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "down.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:56:15" (1/1) ... [2019-08-04 21:56:15,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "down.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:56:15" (1/1) ... [2019-08-04 21:56:15,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "down.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:56:15" (1/1) ... [2019-08-04 21:56:15,403 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "down.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:56:15" (1/1) ... [2019-08-04 21:56:15,405 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "down.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:56:15" (1/1) ... [2019-08-04 21:56:15,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "down.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:56:15" (1/1) ... [2019-08-04 21:56:15,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-04 21:56:15,410 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-04 21:56:15,410 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-04 21:56:15,410 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-04 21:56:15,411 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "down.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:56:15" (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 [2019-08-04 21:56:15,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-04 21:56:15,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-04 21:56:15,775 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-04 21:56:15,775 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-08-04 21:56:15,777 INFO L202 PluginConnector]: Adding new model down.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.08 09:56:15 BoogieIcfgContainer [2019-08-04 21:56:15,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-04 21:56:15,778 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-04 21:56:15,778 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-04 21:56:15,778 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-04 21:56:15,780 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "down.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.08 09:56:15" (1/1) ... [2019-08-04 21:56:15,790 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-04 21:56:15,793 INFO L155 IcfgInterpreter]: Building call graph [2019-08-04 21:56:15,800 INFO L160 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-04 21:56:15,809 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-04 21:56:15,810 INFO L184 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 [2019-08-04 21:56:16,067 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 11 [2019-08-04 21:56:16,289 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 20 [2019-08-04 21:56:16,657 WARN L188 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 27 [2019-08-04 21:56:16,847 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 27 [2019-08-04 21:56:17,115 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2019-08-04 21:56:17,509 WARN L188 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 33 [2019-08-04 21:56:17,790 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2019-08-04 21:56:18,197 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 34 [2019-08-04 21:56:18,436 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2019-08-04 21:56:18,473 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-04 21:56:18,473 INFO L176 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-04 21:56:18,477 INFO L178 IcfgInterpreter]: Location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT has predicate 60#(and (= |ULTIMATE.start___VERIFIER_assert_#in~cond| (ite (< 0 ULTIMATE.start_main_~k~5) 1 0)) (= |ULTIMATE.start___VERIFIER_assert_#in~cond| ULTIMATE.start___VERIFIER_assert_~cond) (= 0 ULTIMATE.start___VERIFIER_assert_~cond) (not (= (ite (< 0 (+ ULTIMATE.start_main_~k~5 1)) 1 0) 0)) (< 0 ULTIMATE.start_main_~j~5)) [2019-08-04 21:56:18,485 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-04 21:56:18,488 INFO L168 Benchmark]: Toolchain (without parser) took 3128.57 ms. Allocated memory was 141.0 MB in the beginning and 177.2 MB in the end (delta: 36.2 MB). Free memory was 109.3 MB in the beginning and 64.5 MB in the end (delta: 44.8 MB). Peak memory consumption was 81.0 MB. Max. memory is 7.1 GB. [2019-08-04 21:56:18,489 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.24 ms. Allocated memory is still 141.0 MB. Free memory was 110.6 MB in the beginning and 110.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-04 21:56:18,491 INFO L168 Benchmark]: Boogie Preprocessor took 49.67 ms. Allocated memory is still 141.0 MB. Free memory was 109.1 MB in the beginning and 107.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-08-04 21:56:18,492 INFO L168 Benchmark]: RCFGBuilder took 367.71 ms. Allocated memory is still 141.0 MB. Free memory was 107.1 MB in the beginning and 97.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-08-04 21:56:18,493 INFO L168 Benchmark]: Symbolic Interpretation took 2707.94 ms. Allocated memory was 141.0 MB in the beginning and 177.2 MB in the end (delta: 36.2 MB). Free memory was 97.1 MB in the beginning and 64.5 MB in the end (delta: 32.6 MB). Peak memory consumption was 68.7 MB. Max. memory is 7.1 GB. [2019-08-04 21:56:18,498 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 66]: 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: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.24 ms. Allocated memory is still 141.0 MB. Free memory was 110.6 MB in the beginning and 110.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * Boogie Preprocessor took 49.67 ms. Allocated memory is still 141.0 MB. Free memory was 109.1 MB in the beginning and 107.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 367.71 ms. Allocated memory is still 141.0 MB. Free memory was 107.1 MB in the beginning and 97.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 2707.94 ms. Allocated memory was 141.0 MB in the beginning and 177.2 MB in the end (delta: 36.2 MB). Free memory was 97.1 MB in the beginning and 64.5 MB in the end (delta: 32.6 MB). Peak memory consumption was 68.7 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...