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/nested.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 11:43:15,812 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 11:43:15,814 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 11:43:15,831 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 11:43:15,832 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 11:43:15,833 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 11:43:15,834 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 11:43:15,837 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 11:43:15,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 11:43:15,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 11:43:15,843 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 11:43:15,843 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 11:43:15,843 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 11:43:15,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 11:43:15,848 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 11:43:15,856 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 11:43:15,857 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 11:43:15,858 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 11:43:15,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 11:43:15,867 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 11:43:15,869 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 11:43:15,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 11:43:15,874 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 11:43:15,875 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 11:43:15,878 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 11:43:15,878 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 11:43:15,878 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 11:43:15,879 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 11:43:15,880 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 11:43:15,882 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 11:43:15,882 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 11:43:15,883 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 11:43:15,886 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 11:43:15,887 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 11:43:15,888 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 11:43:15,889 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 11:43:15,890 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 11:43:15,890 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 11:43:15,890 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 11:43:15,892 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 11:43:15,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 11:43:15,943 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 11:43:15,960 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 11:43:15,964 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 11:43:15,966 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 11:43:15,967 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 11:43:15,968 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/nested.i_4.bpl [2019-08-05 11:43:15,968 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/nested.i_4.bpl' [2019-08-05 11:43:16,014 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 11:43:16,016 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-05 11:43:16,016 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 11:43:16,016 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 11:43:16,017 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 11:43:16,040 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:43:15" (1/1) ... [2019-08-05 11:43:16,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:43:15" (1/1) ... [2019-08-05 11:43:16,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:43:15" (1/1) ... [2019-08-05 11:43:16,051 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:43:15" (1/1) ... [2019-08-05 11:43:16,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:43:15" (1/1) ... [2019-08-05 11:43:16,058 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:43:15" (1/1) ... [2019-08-05 11:43:16,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:43:15" (1/1) ... [2019-08-05 11:43:16,060 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 11:43:16,062 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 11:43:16,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 11:43:16,063 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 11:43:16,064 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:43:15" (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 [2019-08-05 11:43:16,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 11:43:16,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 11:43:16,306 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2019-08-05 11:43:16,308 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 11:43:16,309 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-08-05 11:43:16,310 INFO L202 PluginConnector]: Adding new model nested.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:43:16 BoogieIcfgContainer [2019-08-05 11:43:16,310 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 11:43:16,310 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-05 11:43:16,311 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-05 11:43:16,311 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-05 11:43:16,313 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:43:16" (1/1) ... [2019-08-05 11:43:16,324 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-05 11:43:16,327 INFO L155 IcfgInterpreter]: Building call graph [2019-08-05 11:43:16,334 INFO L160 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-05 11:43:16,343 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-05 11:43:16,344 INFO L184 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 [2019-08-05 11:43:16,666 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 16 [2019-08-05 11:43:17,017 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2019-08-05 11:43:17,211 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2019-08-05 11:43:17,534 WARN L188 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2019-08-05 11:43:17,980 WARN L188 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 23 [2019-08-05 11:43:18,214 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2019-08-05 11:43:18,358 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2019-08-05 11:43:18,539 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2019-08-05 11:43:18,884 WARN L188 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2019-08-05 11:43:19,119 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2019-08-05 11:43:19,503 WARN L188 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2019-08-05 11:43:19,837 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 25 [2019-08-05 11:43:19,872 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-05 11:43:19,873 INFO L176 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-05 11:43:19,876 INFO L178 IcfgInterpreter]: Location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT has predicate 93#(and (not (< ULTIMATE.start_main_~i~5 ULTIMATE.start_main_~n~5)) (= |ULTIMATE.start___VERIFIER_assert_#in~cond| ULTIMATE.start___VERIFIER_assert_~cond) (= 0 ULTIMATE.start___VERIFIER_assert_~cond) (not (< ULTIMATE.start_main_~j~5 ULTIMATE.start_main_~m~5)) (= (ite (<= 100 ULTIMATE.start_main_~k~5) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond|) (< ULTIMATE.start_main_~j~5 (+ ULTIMATE.start_main_~m~5 1))) [2019-08-05 11:43:19,884 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-05 11:43:19,886 INFO L168 Benchmark]: Toolchain (without parser) took 3870.38 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 110.0 MB in the beginning and 114.5 MB in the end (delta: -4.5 MB). Peak memory consumption was 91.0 MB. Max. memory is 7.1 GB. [2019-08-05 11:43:19,887 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 111.3 MB in the beginning and 111.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-08-05 11:43:19,888 INFO L168 Benchmark]: Boogie Preprocessor took 44.68 ms. Allocated memory is still 140.5 MB. Free memory was 109.8 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 11:43:19,889 INFO L168 Benchmark]: RCFGBuilder took 247.80 ms. Allocated memory is still 140.5 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 11:43:19,890 INFO L168 Benchmark]: Symbolic Interpretation took 3574.10 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 97.7 MB in the beginning and 114.5 MB in the end (delta: -16.8 MB). Peak memory consumption was 78.7 MB. Max. memory is 7.1 GB. [2019-08-05 11:43:19,894 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 50]: 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 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 111.3 MB in the beginning and 111.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * Boogie Preprocessor took 44.68 ms. Allocated memory is still 140.5 MB. Free memory was 109.8 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 247.80 ms. Allocated memory is still 140.5 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 3574.10 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 97.7 MB in the beginning and 114.5 MB in the end (delta: -16.8 MB). Peak memory consumption was 78.7 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...