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/invert_string.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-3b9210c [2019-08-06 16:52:24,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-06 16:52:24,968 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-06 16:52:24,980 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-06 16:52:24,981 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-06 16:52:24,982 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-06 16:52:24,983 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-06 16:52:24,985 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-06 16:52:24,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-06 16:52:24,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-06 16:52:24,989 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-06 16:52:24,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-06 16:52:24,990 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-06 16:52:24,991 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-06 16:52:24,992 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-06 16:52:24,993 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-06 16:52:24,994 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-06 16:52:24,995 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-06 16:52:24,997 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-06 16:52:24,999 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-06 16:52:25,001 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-06 16:52:25,002 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-06 16:52:25,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-06 16:52:25,004 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-06 16:52:25,007 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-06 16:52:25,007 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-06 16:52:25,008 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-06 16:52:25,009 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-06 16:52:25,009 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-06 16:52:25,010 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-06 16:52:25,010 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-06 16:52:25,011 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-06 16:52:25,012 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-06 16:52:25,013 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-06 16:52:25,014 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-06 16:52:25,014 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-06 16:52:25,015 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-06 16:52:25,015 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-06 16:52:25,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-06 16:52:25,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-06 16:52:25,017 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-06 16:52:25,052 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-06 16:52:25,069 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-06 16:52:25,072 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-06 16:52:25,074 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-06 16:52:25,075 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-06 16:52:25,076 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/invert_string.i_4.bpl [2019-08-06 16:52:25,077 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/invert_string.i_4.bpl' [2019-08-06 16:52:25,122 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-06 16:52:25,124 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-06 16:52:25,125 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-06 16:52:25,125 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-06 16:52:25,125 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-06 16:52:25,149 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "invert_string.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:52:25" (1/1) ... [2019-08-06 16:52:25,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "invert_string.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:52:25" (1/1) ... [2019-08-06 16:52:25,162 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "invert_string.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:52:25" (1/1) ... [2019-08-06 16:52:25,163 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "invert_string.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:52:25" (1/1) ... [2019-08-06 16:52:25,169 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "invert_string.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:52:25" (1/1) ... [2019-08-06 16:52:25,171 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "invert_string.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:52:25" (1/1) ... [2019-08-06 16:52:25,173 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "invert_string.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:52:25" (1/1) ... [2019-08-06 16:52:25,175 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-06 16:52:25,176 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-06 16:52:25,176 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-06 16:52:25,176 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-06 16:52:25,177 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "invert_string.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:52:25" (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 [2019-08-06 16:52:25,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-06 16:52:25,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-06 16:52:25,528 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-06 16:52:25,528 INFO L283 CfgBuilder]: Removed 3 assume(true) statements. [2019-08-06 16:52:25,530 INFO L202 PluginConnector]: Adding new model invert_string.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 04:52:25 BoogieIcfgContainer [2019-08-06 16:52:25,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-06 16:52:25,530 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-06 16:52:25,531 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-06 16:52:25,531 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-06 16:52:25,532 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "invert_string.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 04:52:25" (1/1) ... [2019-08-06 16:52:25,543 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-06 16:52:25,545 INFO L155 IcfgInterpreter]: Building call graph [2019-08-06 16:52:25,552 INFO L160 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-06 16:52:25,560 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-06 16:52:25,561 INFO L185 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 [2019-08-06 16:52:25,721 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-06 16:52:25,721 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-06 16:52:25,724 INFO L179 IcfgInterpreter]: Location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT has predicate 40#(and (= |ULTIMATE.start___VERIFIER_assert_#in~cond| ULTIMATE.start___VERIFIER_assert_~cond) (< ULTIMATE.start_main_~i~6 ULTIMATE.start_main_~MAX~6) (= (ite (= (select ULTIMATE.start_main_~str1~6 ULTIMATE.start_main_~i~6) (select ULTIMATE.start_main_~str2~6 ULTIMATE.start_main_~j~6)) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond|) (= 0 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~i~6 0) (= ULTIMATE.start_main_~j~6 (+ ULTIMATE.start_main_~MAX~6 (- 1))) (exists ((v_ULTIMATE.start_main_~i~6_20 Int)) (and (not (<= 0 v_ULTIMATE.start_main_~i~6_20)) (<= 0 (+ v_ULTIMATE.start_main_~i~6_20 1)))) (exists ((v_ULTIMATE.start_main_~str2~6_9 (Array Int Int)) (v_ULTIMATE.start_main_~j~6_11 Int)) (= (store v_ULTIMATE.start_main_~str2~6_9 (+ v_ULTIMATE.start_main_~j~6_11 (- 1)) (select ULTIMATE.start_main_~str1~6 0)) ULTIMATE.start_main_~str2~6))) [2019-08-06 16:52:25,725 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-06 16:52:25,731 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-06 16:52:25,734 INFO L168 Benchmark]: Toolchain (without parser) took 609.49 ms. Allocated memory is still 131.6 MB. Free memory was 106.5 MB in the beginning and 87.0 MB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 7.1 GB. [2019-08-06 16:52:25,735 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.24 ms. Allocated memory is still 131.6 MB. Free memory was 108.0 MB in the beginning and 107.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-08-06 16:52:25,736 INFO L168 Benchmark]: Boogie Preprocessor took 50.49 ms. Allocated memory is still 131.6 MB. Free memory was 106.5 MB in the beginning and 104.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-08-06 16:52:25,737 INFO L168 Benchmark]: RCFGBuilder took 353.99 ms. Allocated memory is still 131.6 MB. Free memory was 104.3 MB in the beginning and 93.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2019-08-06 16:52:25,739 INFO L168 Benchmark]: Symbolic Interpretation took 200.92 ms. Allocated memory is still 131.6 MB. Free memory was 93.8 MB in the beginning and 87.2 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 7.1 GB. [2019-08-06 16:52:25,743 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 80]: 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 131.6 MB. Free memory was 108.0 MB in the beginning and 107.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * Boogie Preprocessor took 50.49 ms. Allocated memory is still 131.6 MB. Free memory was 106.5 MB in the beginning and 104.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 353.99 ms. Allocated memory is still 131.6 MB. Free memory was 104.3 MB in the beginning and 93.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 200.92 ms. Allocated memory is still 131.6 MB. Free memory was 93.8 MB in the beginning and 87.2 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...