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/20181010-MemSafetyPathprograms/sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-4ddfff8 [2019-08-09 14:17:54,239 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-09 14:17:54,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-09 14:17:54,253 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-09 14:17:54,253 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-09 14:17:54,254 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-09 14:17:54,255 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-09 14:17:54,257 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-09 14:17:54,259 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-09 14:17:54,260 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-09 14:17:54,261 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-09 14:17:54,262 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-09 14:17:54,262 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-09 14:17:54,263 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-09 14:17:54,264 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-09 14:17:54,265 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-09 14:17:54,266 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-09 14:17:54,267 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-09 14:17:54,269 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-09 14:17:54,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-09 14:17:54,273 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-09 14:17:54,274 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-09 14:17:54,275 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-09 14:17:54,276 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-09 14:17:54,279 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-09 14:17:54,279 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-09 14:17:54,279 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-09 14:17:54,280 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-09 14:17:54,281 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-09 14:17:54,282 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-09 14:17:54,282 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-09 14:17:54,283 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-09 14:17:54,283 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-09 14:17:54,284 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-09 14:17:54,285 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-09 14:17:54,286 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-09 14:17:54,286 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-09 14:17:54,287 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-09 14:17:54,287 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-09 14:17:54,288 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-09 14:17:54,289 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-09 14:17:54,323 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-09 14:17:54,343 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-09 14:17:54,347 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-09 14:17:54,349 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-09 14:17:54,350 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-09 14:17:54,351 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl [2019-08-09 14:17:54,351 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl' [2019-08-09 14:17:54,442 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-09 14:17:54,444 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-09 14:17:54,445 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-09 14:17:54,445 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-09 14:17:54,446 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-09 14:17:54,470 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:17:54" (1/1) ... [2019-08-09 14:17:54,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:17:54" (1/1) ... [2019-08-09 14:17:54,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:17:54" (1/1) ... [2019-08-09 14:17:54,493 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:17:54" (1/1) ... [2019-08-09 14:17:54,502 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:17:54" (1/1) ... [2019-08-09 14:17:54,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:17:54" (1/1) ... [2019-08-09 14:17:54,507 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:17:54" (1/1) ... [2019-08-09 14:17:54,511 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-09 14:17:54,512 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-09 14:17:54,512 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-09 14:17:54,512 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-09 14:17:54,513 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:17:54" (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 [2019-08-09 14:17:54,575 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2019-08-09 14:17:54,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-09 14:17:54,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-09 14:17:54,868 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-09 14:17:54,868 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-09 14:17:54,871 INFO L202 PluginConnector]: Adding new model sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.08 02:17:54 BoogieIcfgContainer [2019-08-09 14:17:54,871 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-09 14:17:54,873 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-09 14:17:54,873 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-09 14:17:54,874 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-09 14:17:54,875 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.08 02:17:54" (1/1) ... [2019-08-09 14:17:55,563 WARN L188 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 95 [2019-08-09 14:17:55,751 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2019-08-09 14:17:55,916 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-08-09 14:17:57,134 WARN L188 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 159 DAG size of output: 149 [2019-08-09 14:17:57,609 WARN L188 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2019-08-09 14:17:57,988 WARN L188 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2019-08-09 14:17:59,046 WARN L188 SmtUtils]: Spent 984.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 163 [2019-08-09 14:17:59,428 WARN L188 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2019-08-09 14:17:59,688 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-08-09 14:18:00,989 WARN L188 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 193 DAG size of output: 183 [2019-08-09 14:18:01,555 WARN L188 SmtUtils]: Spent 486.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2019-08-09 14:18:02,026 WARN L188 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2019-08-09 14:18:05,635 WARN L188 SmtUtils]: Spent 3.32 s on a formula simplification. DAG size of input: 212 DAG size of output: 194 [2019-08-09 14:18:06,084 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 85 [2019-08-09 14:18:11,597 WARN L188 SmtUtils]: Spent 5.04 s on a formula simplification. DAG size of input: 598 DAG size of output: 190 [2019-08-09 14:18:11,659 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-08-09 14:18:11,829 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-08-09 14:18:16,770 WARN L188 SmtUtils]: Spent 4.77 s on a formula simplification. DAG size of input: 227 DAG size of output: 217 [2019-08-09 14:18:18,710 WARN L188 SmtUtils]: Spent 1.75 s on a formula simplification that was a NOOP. DAG size: 213 [2019-08-09 14:18:21,805 WARN L188 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 231 DAG size of output: 208 [2019-08-09 14:18:22,027 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2019-08-09 14:18:22,195 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2019-08-09 14:18:22,342 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-08-09 14:18:23,004 WARN L188 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 137 [2019-08-09 14:18:23,608 WARN L188 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 137 [2019-08-09 14:18:23,646 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-09 14:18:23,668 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-09 14:18:23,670 INFO L168 Benchmark]: Toolchain (without parser) took 29226.80 ms. Allocated memory was 143.1 MB in the beginning and 359.7 MB in the end (delta: 216.5 MB). Free memory was 110.8 MB in the beginning and 202.2 MB in the end (delta: -91.4 MB). Peak memory consumption was 267.8 MB. Max. memory is 7.1 GB. [2019-08-09 14:18:23,671 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 143.1 MB. Free memory was 112.8 MB in the beginning and 112.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-09 14:18:23,672 INFO L168 Benchmark]: Boogie Preprocessor took 66.42 ms. Allocated memory is still 143.1 MB. Free memory was 110.8 MB in the beginning and 108.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2019-08-09 14:18:23,673 INFO L168 Benchmark]: RCFGBuilder took 360.79 ms. Allocated memory is still 143.1 MB. Free memory was 108.3 MB in the beginning and 90.5 MB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 7.1 GB. [2019-08-09 14:18:23,674 INFO L168 Benchmark]: Symbolic Interpretation took 28795.20 ms. Allocated memory was 143.1 MB in the beginning and 359.7 MB in the end (delta: 216.5 MB). Free memory was 90.5 MB in the beginning and 202.2 MB in the end (delta: -111.7 MB). Peak memory consumption was 247.5 MB. Max. memory is 7.1 GB. [2019-08-09 14:18:23,677 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 242]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Interpreter reached this location of interest. Location might be reachable. Predicate is 27#(not (= 1 (select |#valid| |ULTIMATE.start_read~$Pointer$_#ptr.base|))). Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 143.1 MB. Free memory was 112.8 MB in the beginning and 112.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * Boogie Preprocessor took 66.42 ms. Allocated memory is still 143.1 MB. Free memory was 110.8 MB in the beginning and 108.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 360.79 ms. Allocated memory is still 143.1 MB. Free memory was 108.3 MB in the beginning and 90.5 MB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 28795.20 ms. Allocated memory was 143.1 MB in the beginning and 359.7 MB in the end (delta: 216.5 MB). Free memory was 90.5 MB in the beginning and 202.2 MB in the end (delta: -111.7 MB). Peak memory consumption was 247.5 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...