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/abstractInterpretation/regression/non_taipan/loop-skips-unsafe.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-3b9210c [2019-08-06 16:59:01,152 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-06 16:59:01,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-06 16:59:01,167 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-06 16:59:01,168 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-06 16:59:01,169 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-06 16:59:01,170 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-06 16:59:01,173 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-06 16:59:01,175 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-06 16:59:01,176 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-06 16:59:01,177 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-06 16:59:01,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-06 16:59:01,178 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-06 16:59:01,181 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-06 16:59:01,182 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-06 16:59:01,183 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-06 16:59:01,184 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-06 16:59:01,184 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-06 16:59:01,186 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-06 16:59:01,188 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-06 16:59:01,190 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-06 16:59:01,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-06 16:59:01,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-06 16:59:01,195 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-06 16:59:01,198 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-06 16:59:01,199 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-06 16:59:01,199 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-06 16:59:01,200 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-06 16:59:01,200 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-06 16:59:01,201 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-06 16:59:01,202 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-06 16:59:01,203 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-06 16:59:01,203 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-06 16:59:01,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-06 16:59:01,207 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-06 16:59:01,207 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-06 16:59:01,207 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-06 16:59:01,208 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-06 16:59:01,208 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-06 16:59:01,209 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-06 16:59:01,212 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-06 16:59:01,246 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-06 16:59:01,261 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-06 16:59:01,264 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-06 16:59:01,266 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-06 16:59:01,267 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-06 16:59:01,268 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/abstractInterpretation/regression/non_taipan/loop-skips-unsafe.bpl [2019-08-06 16:59:01,268 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/abstractInterpretation/regression/non_taipan/loop-skips-unsafe.bpl' [2019-08-06 16:59:01,299 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-06 16:59:01,301 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-06 16:59:01,302 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-06 16:59:01,302 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-06 16:59:01,302 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-06 16:59:01,329 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "loop-skips-unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:59:01" (1/1) ... [2019-08-06 16:59:01,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "loop-skips-unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:59:01" (1/1) ... [2019-08-06 16:59:01,339 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "loop-skips-unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:59:01" (1/1) ... [2019-08-06 16:59:01,339 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "loop-skips-unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:59:01" (1/1) ... [2019-08-06 16:59:01,342 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "loop-skips-unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:59:01" (1/1) ... [2019-08-06 16:59:01,348 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "loop-skips-unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:59:01" (1/1) ... [2019-08-06 16:59:01,349 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "loop-skips-unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:59:01" (1/1) ... [2019-08-06 16:59:01,350 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-06 16:59:01,351 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-06 16:59:01,351 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-06 16:59:01,351 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-06 16:59:01,352 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "loop-skips-unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:59:01" (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 16:59:01,416 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2019-08-06 16:59:01,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-06 16:59:01,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-06 16:59:01,689 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-06 16:59:01,692 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-06 16:59:01,693 INFO L202 PluginConnector]: Adding new model loop-skips-unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 04:59:01 BoogieIcfgContainer [2019-08-06 16:59:01,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-06 16:59:01,694 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-06 16:59:01,694 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-06 16:59:01,696 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-06 16:59:01,697 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "loop-skips-unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 04:59:01" (1/1) ... [2019-08-06 16:59:01,708 INFO L148 IcfgInterpreter]: Started Sifa with 3 locations of interest [2019-08-06 16:59:01,713 INFO L155 IcfgInterpreter]: Building call graph [2019-08-06 16:59:01,722 INFO L160 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-06 16:59:01,731 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-06 16:59:01,732 INFO L185 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 [2019-08-06 16:59:01,822 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-06 16:59:01,822 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-06 16:59:01,825 INFO L179 IcfgInterpreter]: Location ULTIMATE.startErr1ASSERT_VIOLATIONASSERT has predicate 38#false [2019-08-06 16:59:01,825 INFO L179 IcfgInterpreter]: Location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT has predicate 41#false [2019-08-06 16:59:01,826 INFO L179 IcfgInterpreter]: Location ULTIMATE.startErr2ASSERT_VIOLATIONASSERT has predicate 35#(and (or (and (= 0 ULTIMATE.start_i) (= 1000 ULTIMATE.start_i)) (and (= 1000 ULTIMATE.start_i) (not (= 1001 ULTIMATE.start_i)))) (= 1000 ULTIMATE.start_i)) [2019-08-06 16:59:01,827 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-06 16:59:01,838 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-06 16:59:01,841 INFO L168 Benchmark]: Toolchain (without parser) took 538.66 ms. Allocated memory is still 139.5 MB. Free memory was 107.8 MB in the beginning and 91.0 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 7.1 GB. [2019-08-06 16:59:01,842 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory is still 108.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-06 16:59:01,844 INFO L168 Benchmark]: Boogie Preprocessor took 48.59 ms. Allocated memory is still 139.5 MB. Free memory was 107.8 MB in the beginning and 105.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-08-06 16:59:01,846 INFO L168 Benchmark]: RCFGBuilder took 342.18 ms. Allocated memory is still 139.5 MB. Free memory was 105.5 MB in the beginning and 96.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-08-06 16:59:01,848 INFO L168 Benchmark]: Symbolic Interpretation took 144.37 ms. Allocated memory is still 139.5 MB. Free memory was 96.5 MB in the beginning and 91.0 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 7.1 GB. [2019-08-06 16:59:01,853 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - PositiveResult [Line: 10]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 9]: assertion always holds For all program executions holds that assertion always holds at this location - UnprovableResult [Line: 13]: 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 139.5 MB. Free memory is still 108.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 48.59 ms. Allocated memory is still 139.5 MB. Free memory was 107.8 MB in the beginning and 105.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 342.18 ms. Allocated memory is still 139.5 MB. Free memory was 105.5 MB in the beginning and 96.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 144.37 ms. Allocated memory is still 139.5 MB. Free memory was 96.5 MB in the beginning and 91.0 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...