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/half_2.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 11:43:11,612 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 11:43:11,615 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 11:43:11,627 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 11:43:11,628 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 11:43:11,629 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 11:43:11,630 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 11:43:11,633 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 11:43:11,634 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 11:43:11,635 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 11:43:11,637 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 11:43:11,637 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 11:43:11,637 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 11:43:11,638 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 11:43:11,640 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 11:43:11,641 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 11:43:11,642 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 11:43:11,643 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 11:43:11,644 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 11:43:11,647 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 11:43:11,648 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 11:43:11,650 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 11:43:11,651 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 11:43:11,651 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 11:43:11,654 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 11:43:11,654 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 11:43:11,654 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 11:43:11,655 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 11:43:11,656 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 11:43:11,657 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 11:43:11,657 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 11:43:11,658 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 11:43:11,659 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 11:43:11,659 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 11:43:11,660 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 11:43:11,661 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 11:43:11,662 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 11:43:11,662 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 11:43:11,662 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 11:43:11,665 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 11:43:11,666 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 11:43:11,712 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 11:43:11,729 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 11:43:11,732 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 11:43:11,734 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 11:43:11,735 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 11:43:11,736 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/half_2.i_3.bpl [2019-08-05 11:43:11,736 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/half_2.i_3.bpl' [2019-08-05 11:43:11,783 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 11:43:11,784 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-05 11:43:11,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 11:43:11,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 11:43:11,785 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 11:43:11,807 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:43:11" (1/1) ... [2019-08-05 11:43:11,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:43:11" (1/1) ... [2019-08-05 11:43:11,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:43:11" (1/1) ... [2019-08-05 11:43:11,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:43:11" (1/1) ... [2019-08-05 11:43:11,820 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:43:11" (1/1) ... [2019-08-05 11:43:11,822 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:43:11" (1/1) ... [2019-08-05 11:43:11,823 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:43:11" (1/1) ... [2019-08-05 11:43:11,824 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 11:43:11,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 11:43:11,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 11:43:11,826 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 11:43:11,827 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:43:11" (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 11:43:11,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 11:43:11,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 11:43:12,176 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 11:43:12,178 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-08-05 11:43:12,179 INFO L202 PluginConnector]: Adding new model half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:43:12 BoogieIcfgContainer [2019-08-05 11:43:12,179 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 11:43:12,180 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-05 11:43:12,180 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-05 11:43:12,180 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-05 11:43:12,182 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:43:12" (1/1) ... [2019-08-05 11:43:12,193 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-05 11:43:12,197 INFO L155 IcfgInterpreter]: Building call graph [2019-08-05 11:43:12,209 INFO L160 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-05 11:43:12,219 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-05 11:43:12,221 INFO L184 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 [2019-08-05 11:43:12,464 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 13 [2019-08-05 11:43:12,621 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 20 [2019-08-05 11:43:12,761 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 22 [2019-08-05 11:43:13,124 WARN L188 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 29 [2019-08-05 11:43:13,246 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2019-08-05 11:43:13,247 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-05 11:43:13,247 INFO L176 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-05 11:43:13,250 INFO L178 IcfgInterpreter]: Location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT has predicate 23#(and (= |ULTIMATE.start___VERIFIER_assert_#in~cond| (ite (< 0 ULTIMATE.start_main_~k~5) 1 0)) (< ULTIMATE.start_main_~j~5 (ite (and (not (= (mod ULTIMATE.start_main_~n~5 2) 0)) (< ULTIMATE.start_main_~n~5 0)) (+ (div ULTIMATE.start_main_~n~5 2) 1) (div ULTIMATE.start_main_~n~5 2))) (< ULTIMATE.start_main_~i~5 (+ ULTIMATE.start_main_~n~5 2)) (= ULTIMATE.start_main_~j~5 0) (not (< ULTIMATE.start_main_~i~5 ULTIMATE.start_main_~n~5)) (= |ULTIMATE.start___VERIFIER_assert_#in~cond| ULTIMATE.start___VERIFIER_assert_~cond) (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) [2019-08-05 11:43:13,259 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-05 11:43:13,261 INFO L168 Benchmark]: Toolchain (without parser) took 1476.00 ms. Allocated memory is still 134.7 MB. Free memory was 110.9 MB in the beginning and 69.3 MB in the end (delta: 41.5 MB). Peak memory consumption was 41.5 MB. Max. memory is 7.1 GB. [2019-08-05 11:43:13,262 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 134.7 MB. Free memory is still 111.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 11:43:13,263 INFO L168 Benchmark]: Boogie Preprocessor took 40.12 ms. Allocated memory is still 134.7 MB. Free memory was 110.4 MB in the beginning and 108.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-08-05 11:43:13,264 INFO L168 Benchmark]: RCFGBuilder took 354.13 ms. Allocated memory is still 134.7 MB. Free memory was 108.3 MB in the beginning and 98.8 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-08-05 11:43:13,266 INFO L168 Benchmark]: Symbolic Interpretation took 1079.18 ms. Allocated memory is still 134.7 MB. Free memory was 98.8 MB in the beginning and 69.3 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. [2019-08-05 11:43:13,270 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 51]: 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 134.7 MB. Free memory is still 111.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 40.12 ms. Allocated memory is still 134.7 MB. Free memory was 110.4 MB in the beginning and 108.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 354.13 ms. Allocated memory is still 134.7 MB. Free memory was 108.3 MB in the beginning and 98.8 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 1079.18 ms. Allocated memory is still 134.7 MB. Free memory was 98.8 MB in the beginning and 69.3 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...