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 [2019-08-05 11:42:27,603 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 11:42:27,605 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 11:42:27,617 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 11:42:27,617 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 11:42:27,618 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 11:42:27,620 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 11:42:27,622 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 11:42:27,624 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 11:42:27,624 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 11:42:27,625 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 11:42:27,626 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 11:42:27,626 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 11:42:27,627 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 11:42:27,628 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 11:42:27,629 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 11:42:27,630 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 11:42:27,631 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 11:42:27,633 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 11:42:27,635 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 11:42:27,637 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 11:42:27,638 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 11:42:27,639 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 11:42:27,640 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 11:42:27,643 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 11:42:27,643 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 11:42:27,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 11:42:27,644 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 11:42:27,645 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 11:42:27,646 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 11:42:27,646 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 11:42:27,647 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 11:42:27,648 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 11:42:27,649 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 11:42:27,650 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 11:42:27,651 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 11:42:27,651 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 11:42:27,652 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 11:42:27,652 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 11:42:27,653 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 11:42:27,654 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 11:42:27,692 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 11:42:27,703 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 11:42:27,706 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 11:42:27,708 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 11:42:27,708 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 11:42:27,709 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/down.i_4.bpl [2019-08-05 11:42:27,709 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/down.i_4.bpl' [2019-08-05 11:42:27,743 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 11:42:27,745 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-05 11:42:27,746 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 11:42:27,746 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 11:42:27,746 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 11:42:27,768 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "down.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:42:27" (1/1) ... [2019-08-05 11:42:27,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "down.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:42:27" (1/1) ... [2019-08-05 11:42:27,777 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "down.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:42:27" (1/1) ... [2019-08-05 11:42:27,777 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "down.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:42:27" (1/1) ... [2019-08-05 11:42:27,780 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "down.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:42:27" (1/1) ... [2019-08-05 11:42:27,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "down.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:42:27" (1/1) ... [2019-08-05 11:42:27,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "down.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:42:27" (1/1) ... [2019-08-05 11:42:27,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 11:42:27,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 11:42:27,786 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 11:42:27,786 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 11:42:27,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "down.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:42:27" (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 11:42:27,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 11:42:27,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 11:42:28,152 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 11:42:28,153 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-08-05 11:42:28,154 INFO L202 PluginConnector]: Adding new model down.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:42:28 BoogieIcfgContainer [2019-08-05 11:42:28,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 11:42:28,154 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-05 11:42:28,154 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-05 11:42:28,155 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-05 11:42:28,156 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 05.08 11:42:28" (1/1) ... [2019-08-05 11:42:28,165 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-05 11:42:28,168 INFO L155 IcfgInterpreter]: Building call graph [2019-08-05 11:42:28,175 INFO L160 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-05 11:42:28,187 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-05 11:42:28,188 INFO L184 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 [2019-08-05 11:42:28,422 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 11 [2019-08-05 11:42:28,978 WARN L188 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 27 [2019-08-05 11:42:29,168 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 27 [2019-08-05 11:42:29,431 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2019-08-05 11:42:29,854 WARN L188 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 33 [2019-08-05 11:42:30,137 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2019-08-05 11:42:30,497 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 34 [2019-08-05 11:42:30,718 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2019-08-05 11:42:30,752 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-05 11:42:30,753 INFO L176 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-05 11:42:30,757 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)) [2019-08-05 11:42:30,765 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-05 11:42:30,767 INFO L168 Benchmark]: Toolchain (without parser) took 3021.48 ms. Allocated memory was 141.6 MB in the beginning and 176.2 MB in the end (delta: 34.6 MB). Free memory was 109.9 MB in the beginning and 63.6 MB in the end (delta: 46.3 MB). Peak memory consumption was 80.9 MB. Max. memory is 7.1 GB. [2019-08-05 11:42:30,768 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 141.6 MB. Free memory was 111.2 MB in the beginning and 111.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-08-05 11:42:30,769 INFO L168 Benchmark]: Boogie Preprocessor took 39.50 ms. Allocated memory is still 141.6 MB. Free memory was 109.7 MB in the beginning and 107.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-08-05 11:42:30,770 INFO L168 Benchmark]: RCFGBuilder took 368.47 ms. Allocated memory is still 141.6 MB. Free memory was 107.7 MB in the beginning and 97.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-08-05 11:42:30,771 INFO L168 Benchmark]: Symbolic Interpretation took 2610.49 ms. Allocated memory was 141.6 MB in the beginning and 176.2 MB in the end (delta: 34.6 MB). Free memory was 97.7 MB in the beginning and 63.6 MB in the end (delta: 34.1 MB). Peak memory consumption was 68.7 MB. Max. memory is 7.1 GB. [2019-08-05 11:42:30,775 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 0.20 ms. Allocated memory is still 141.6 MB. Free memory was 111.2 MB in the beginning and 111.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * Boogie Preprocessor took 39.50 ms. Allocated memory is still 141.6 MB. Free memory was 109.7 MB in the beginning and 107.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 368.47 ms. Allocated memory is still 141.6 MB. Free memory was 107.7 MB in the beginning and 97.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 2610.49 ms. Allocated memory was 141.6 MB in the beginning and 176.2 MB in the end (delta: 34.6 MB). Free memory was 97.7 MB in the beginning and 63.6 MB in the end (delta: 34.1 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...