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/toy/InvariantSynthesis/Paper_PathInvariants_Fig1_Forward.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-3b9210c [2019-08-06 16:55:53,632 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-06 16:55:53,634 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-06 16:55:53,650 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-06 16:55:53,651 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-06 16:55:53,652 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-06 16:55:53,653 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-06 16:55:53,657 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-06 16:55:53,659 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-06 16:55:53,660 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-06 16:55:53,661 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-06 16:55:53,662 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-06 16:55:53,662 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-06 16:55:53,663 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-06 16:55:53,664 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-06 16:55:53,665 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-06 16:55:53,666 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-06 16:55:53,667 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-06 16:55:53,669 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-06 16:55:53,671 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-06 16:55:53,672 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-06 16:55:53,674 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-06 16:55:53,675 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-06 16:55:53,676 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-06 16:55:53,678 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-06 16:55:53,678 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-06 16:55:53,679 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-06 16:55:53,679 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-06 16:55:53,680 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-06 16:55:53,681 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-06 16:55:53,681 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-06 16:55:53,682 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-06 16:55:53,683 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-06 16:55:53,684 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-06 16:55:53,685 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-06 16:55:53,685 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-06 16:55:53,686 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-06 16:55:53,686 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-06 16:55:53,686 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-06 16:55:53,687 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-06 16:55:53,688 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-06 16:55:53,727 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-06 16:55:53,742 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-06 16:55:53,745 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-06 16:55:53,748 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-06 16:55:53,749 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-06 16:55:53,749 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/InvariantSynthesis/Paper_PathInvariants_Fig1_Forward.bpl [2019-08-06 16:55:53,750 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/InvariantSynthesis/Paper_PathInvariants_Fig1_Forward.bpl' [2019-08-06 16:55:53,783 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-06 16:55:53,784 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-06 16:55:53,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-06 16:55:53,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-06 16:55:53,785 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-06 16:55:53,808 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Paper_PathInvariants_Fig1_Forward.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:55:53" (1/1) ... [2019-08-06 16:55:53,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Paper_PathInvariants_Fig1_Forward.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:55:53" (1/1) ... [2019-08-06 16:55:53,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Paper_PathInvariants_Fig1_Forward.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:55:53" (1/1) ... [2019-08-06 16:55:53,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Paper_PathInvariants_Fig1_Forward.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:55:53" (1/1) ... [2019-08-06 16:55:53,820 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Paper_PathInvariants_Fig1_Forward.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:55:53" (1/1) ... [2019-08-06 16:55:53,823 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Paper_PathInvariants_Fig1_Forward.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:55:53" (1/1) ... [2019-08-06 16:55:53,824 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Paper_PathInvariants_Fig1_Forward.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:55:53" (1/1) ... [2019-08-06 16:55:53,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-06 16:55:53,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-06 16:55:53,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-06 16:55:53,827 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-06 16:55:53,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Paper_PathInvariants_Fig1_Forward.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:55:53" (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 16:55:53,892 INFO L124 BoogieDeclarations]: Specification and implementation of procedure forward given in one single declaration [2019-08-06 16:55:53,892 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-08-06 16:55:53,892 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-08-06 16:55:54,189 INFO L275 CfgBuilder]: Using library mode [2019-08-06 16:55:54,190 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-06 16:55:54,192 INFO L202 PluginConnector]: Adding new model Paper_PathInvariants_Fig1_Forward.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 04:55:54 BoogieIcfgContainer [2019-08-06 16:55:54,193 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-06 16:55:54,193 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-06 16:55:54,193 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-06 16:55:54,194 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-06 16:55:54,203 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "Paper_PathInvariants_Fig1_Forward.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 04:55:54" (1/1) ... [2019-08-06 16:55:54,220 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-06 16:55:54,224 INFO L155 IcfgInterpreter]: Building call graph [2019-08-06 16:55:54,244 INFO L160 IcfgInterpreter]: Initial procedures are [forward] [2019-08-06 16:55:54,258 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-06 16:55:54,260 INFO L185 IcfgInterpreter]: Interpreting procedure forward with input of size 1 [2019-08-06 16:55:54,358 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-06 16:55:54,358 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-06 16:55:54,361 INFO L179 IcfgInterpreter]: Location forwardErr0ASSERT_VIOLATIONASSERT has predicate 23#(and (not (= (* 3 n) (+ b a))) (< i (+ n 1)) (not (< i n))) [2019-08-06 16:55:54,362 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-06 16:55:54,368 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-06 16:55:54,371 INFO L168 Benchmark]: Toolchain (without parser) took 585.75 ms. Allocated memory is still 131.6 MB. Free memory was 106.7 MB in the beginning and 87.9 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. [2019-08-06 16:55:54,372 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 131.6 MB. Free memory is still 107.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-06 16:55:54,373 INFO L168 Benchmark]: Boogie Preprocessor took 41.25 ms. Allocated memory is still 131.6 MB. Free memory was 106.7 MB in the beginning and 104.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-08-06 16:55:54,374 INFO L168 Benchmark]: RCFGBuilder took 366.46 ms. Allocated memory is still 131.6 MB. Free memory was 104.5 MB in the beginning and 93.0 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2019-08-06 16:55:54,376 INFO L168 Benchmark]: Symbolic Interpretation took 174.89 ms. Allocated memory is still 131.6 MB. Free memory was 93.0 MB in the beginning and 87.9 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2019-08-06 16:55:54,379 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 27]: 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 0.22 ms. Allocated memory is still 131.6 MB. Free memory is still 107.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 41.25 ms. Allocated memory is still 131.6 MB. Free memory was 106.7 MB in the beginning and 104.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 366.46 ms. Allocated memory is still 131.6 MB. Free memory was 104.5 MB in the beginning and 93.0 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 174.89 ms. Allocated memory is still 131.6 MB. Free memory was 93.0 MB in the beginning and 87.9 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...