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/string_concat-noarr.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 11:42:42,368 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 11:42:42,370 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 11:42:42,383 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 11:42:42,384 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 11:42:42,386 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 11:42:42,387 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 11:42:42,389 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 11:42:42,392 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 11:42:42,401 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 11:42:42,402 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 11:42:42,403 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 11:42:42,403 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 11:42:42,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 11:42:42,407 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 11:42:42,408 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 11:42:42,409 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 11:42:42,415 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 11:42:42,418 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 11:42:42,423 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 11:42:42,425 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 11:42:42,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 11:42:42,429 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 11:42:42,430 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 11:42:42,432 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 11:42:42,432 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 11:42:42,432 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 11:42:42,433 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 11:42:42,434 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 11:42:42,435 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 11:42:42,435 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 11:42:42,436 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 11:42:42,436 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 11:42:42,437 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 11:42:42,438 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 11:42:42,438 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 11:42:42,439 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 11:42:42,439 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 11:42:42,440 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 11:42:42,441 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 11:42:42,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 11:42:42,470 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 11:42:42,486 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 11:42:42,490 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 11:42:42,492 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 11:42:42,493 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 11:42:42,494 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/string_concat-noarr.i_3.bpl [2019-08-05 11:42:42,494 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/string_concat-noarr.i_3.bpl' [2019-08-05 11:42:42,536 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 11:42:42,537 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-05 11:42:42,538 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 11:42:42,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 11:42:42,538 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 11:42:42,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "string_concat-noarr.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:42:42" (1/1) ... [2019-08-05 11:42:42,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "string_concat-noarr.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:42:42" (1/1) ... [2019-08-05 11:42:42,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "string_concat-noarr.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:42:42" (1/1) ... [2019-08-05 11:42:42,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "string_concat-noarr.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:42:42" (1/1) ... [2019-08-05 11:42:42,578 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "string_concat-noarr.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:42:42" (1/1) ... [2019-08-05 11:42:42,581 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "string_concat-noarr.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:42:42" (1/1) ... [2019-08-05 11:42:42,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "string_concat-noarr.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:42:42" (1/1) ... [2019-08-05 11:42:42,583 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 11:42:42,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 11:42:42,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 11:42:42,585 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 11:42:42,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "string_concat-noarr.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:42:42" (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 11:42:42,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 11:42:42,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 11:42:42,920 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 11:42:42,920 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-08-05 11:42:42,922 INFO L202 PluginConnector]: Adding new model string_concat-noarr.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:42:42 BoogieIcfgContainer [2019-08-05 11:42:42,922 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 11:42:42,922 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-05 11:42:42,922 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-05 11:42:42,923 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-05 11:42:42,925 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "string_concat-noarr.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:42:42" (1/1) ... [2019-08-05 11:42:42,935 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-05 11:42:42,938 INFO L155 IcfgInterpreter]: Building call graph [2019-08-05 11:42:42,944 INFO L160 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-05 11:42:42,953 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-05 11:42:42,954 INFO L184 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 [2019-08-05 11:42:43,131 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 6 [2019-08-05 11:42:43,278 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 11 [2019-08-05 11:42:43,704 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 18 [2019-08-05 11:42:43,704 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-05 11:42:43,705 INFO L176 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-05 11:42:43,707 INFO L178 IcfgInterpreter]: Location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT has predicate 27#(and (= |ULTIMATE.start___VERIFIER_assert_#in~cond| (ite (< ULTIMATE.start_main_~i~5 200) 1 0)) (= |ULTIMATE.start___VERIFIER_assert_#in~cond| ULTIMATE.start___VERIFIER_assert_~cond) (= 0 ULTIMATE.start___VERIFIER_assert_~cond) (not (<= 100 ULTIMATE.start_main_~j~5)) (< ULTIMATE.start_main_~i~5 1000001)) [2019-08-05 11:42:43,715 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-05 11:42:43,717 INFO L168 Benchmark]: Toolchain (without parser) took 1179.65 ms. Allocated memory is still 139.5 MB. Free memory was 109.1 MB in the beginning and 75.7 MB in the end (delta: 33.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. [2019-08-05 11:42:43,718 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory is still 110.0 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 11:42:43,720 INFO L168 Benchmark]: Boogie Preprocessor took 46.37 ms. Allocated memory is still 139.5 MB. Free memory was 108.7 MB in the beginning and 107.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-08-05 11:42:43,721 INFO L168 Benchmark]: RCFGBuilder took 337.26 ms. Allocated memory is still 139.5 MB. Free memory was 106.6 MB in the beginning and 97.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-08-05 11:42:43,722 INFO L168 Benchmark]: Symbolic Interpretation took 792.99 ms. Allocated memory is still 139.5 MB. Free memory was 97.0 MB in the beginning and 75.7 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. [2019-08-05 11:42:43,727 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 53]: 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 139.5 MB. Free memory is still 110.0 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 46.37 ms. Allocated memory is still 139.5 MB. Free memory was 108.7 MB in the beginning and 107.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 337.26 ms. Allocated memory is still 139.5 MB. Free memory was 106.6 MB in the beginning and 97.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 792.99 ms. Allocated memory is still 139.5 MB. Free memory was 97.0 MB in the beginning and 75.7 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...