./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loops/verisec_NetBSD-libc_loop.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/loops/verisec_NetBSD-libc_loop.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 19c675897a6506757b73d61913c0ceb3a779b5c8 ................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 03:17:12,741 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 03:17:12,744 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 03:17:12,761 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 03:17:12,762 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 03:17:12,764 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 03:17:12,766 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 03:17:12,768 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 03:17:12,770 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 03:17:12,770 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 03:17:12,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 03:17:12,773 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 03:17:12,773 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 03:17:12,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 03:17:12,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 03:17:12,777 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 03:17:12,777 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 03:17:12,778 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 03:17:12,780 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 03:17:12,782 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 03:17:12,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 03:17:12,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 03:17:12,790 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 03:17:12,791 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 03:17:12,796 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 03:17:12,796 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 03:17:12,796 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 03:17:12,797 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 03:17:12,797 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 03:17:12,801 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 03:17:12,801 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 03:17:12,802 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 03:17:12,803 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 03:17:12,804 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 03:17:12,806 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 03:17:12,808 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 03:17:12,809 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 03:17:12,810 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 03:17:12,810 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 03:17:12,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 03:17:12,814 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 03:17:12,815 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 03:17:12,831 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 03:17:12,832 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 03:17:12,833 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 03:17:12,833 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 03:17:12,833 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 03:17:12,834 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 03:17:12,834 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 03:17:12,834 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 03:17:12,834 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 03:17:12,835 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 03:17:12,835 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 03:17:12,835 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 03:17:12,836 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 03:17:12,836 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 03:17:12,836 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 03:17:12,836 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 03:17:12,837 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 03:17:12,837 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 03:17:12,837 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 03:17:12,837 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 03:17:12,838 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 03:17:12,838 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 03:17:12,838 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 03:17:12,838 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 03:17:12,839 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 03:17:12,839 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 03:17:12,839 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 03:17:12,840 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 03:17:12,840 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 03:17:12,840 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 03:17:12,840 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 03:17:12,841 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 03:17:12,842 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19c675897a6506757b73d61913c0ceb3a779b5c8 [2019-11-28 03:17:13,169 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 03:17:13,191 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 03:17:13,195 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 03:17:13,197 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 03:17:13,198 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 03:17:13,198 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/verisec_NetBSD-libc_loop.i [2019-11-28 03:17:13,274 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/955aee6e6/d84b20e804c04d13a57843cb655c6c1b/FLAG6dcb9ce1e [2019-11-28 03:17:13,714 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 03:17:13,716 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/verisec_NetBSD-libc_loop.i [2019-11-28 03:17:13,723 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/955aee6e6/d84b20e804c04d13a57843cb655c6c1b/FLAG6dcb9ce1e [2019-11-28 03:17:14,092 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/955aee6e6/d84b20e804c04d13a57843cb655c6c1b [2019-11-28 03:17:14,096 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 03:17:14,098 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 03:17:14,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 03:17:14,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 03:17:14,103 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 03:17:14,104 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:17:14" (1/1) ... [2019-11-28 03:17:14,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66bfba7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:14, skipping insertion in model container [2019-11-28 03:17:14,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:17:14" (1/1) ... [2019-11-28 03:17:14,116 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 03:17:14,134 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 03:17:14,297 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:17:14,307 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 03:17:14,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:17:14,335 INFO L208 MainTranslator]: Completed translation [2019-11-28 03:17:14,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:14 WrapperNode [2019-11-28 03:17:14,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 03:17:14,337 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 03:17:14,337 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 03:17:14,338 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 03:17:14,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:14" (1/1) ... [2019-11-28 03:17:14,410 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:14" (1/1) ... [2019-11-28 03:17:14,427 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 03:17:14,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 03:17:14,428 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 03:17:14,428 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 03:17:14,435 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:14" (1/1) ... [2019-11-28 03:17:14,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:14" (1/1) ... [2019-11-28 03:17:14,437 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:14" (1/1) ... [2019-11-28 03:17:14,437 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:14" (1/1) ... [2019-11-28 03:17:14,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:14" (1/1) ... [2019-11-28 03:17:14,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:14" (1/1) ... [2019-11-28 03:17:14,450 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:14" (1/1) ... [2019-11-28 03:17:14,452 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 03:17:14,453 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 03:17:14,453 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 03:17:14,453 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 03:17:14,454 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:14" (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 [2019-11-28 03:17:14,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 03:17:14,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 03:17:14,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 03:17:14,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 03:17:14,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 03:17:14,732 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 03:17:14,732 INFO L297 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-28 03:17:14,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:17:14 BoogieIcfgContainer [2019-11-28 03:17:14,733 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 03:17:14,734 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 03:17:14,734 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 03:17:14,738 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 03:17:14,739 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:17:14,739 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:17:14" (1/3) ... [2019-11-28 03:17:14,740 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@39172aca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:17:14, skipping insertion in model container [2019-11-28 03:17:14,740 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:17:14,741 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:14" (2/3) ... [2019-11-28 03:17:14,741 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@39172aca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:17:14, skipping insertion in model container [2019-11-28 03:17:14,741 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:17:14,742 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:17:14" (3/3) ... [2019-11-28 03:17:14,743 INFO L371 chiAutomizerObserver]: Analyzing ICFG verisec_NetBSD-libc_loop.i [2019-11-28 03:17:14,794 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 03:17:14,795 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 03:17:14,795 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 03:17:14,795 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 03:17:14,795 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 03:17:14,796 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 03:17:14,796 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 03:17:14,796 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 03:17:14,814 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2019-11-28 03:17:14,844 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-28 03:17:14,845 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:17:14,846 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:17:14,857 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-28 03:17:14,858 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-11-28 03:17:14,858 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 03:17:14,859 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2019-11-28 03:17:14,860 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-28 03:17:14,861 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:17:14,861 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:17:14,862 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-28 03:17:14,862 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-11-28 03:17:14,874 INFO L794 eck$LassoCheckResult]: Stem: 8#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~tmp~0.base, ~tmp~0.offset := 0, 0; 7#L-1true havoc main_#res;havoc main_#t~ret1, main_~#pathbuf~0.base, main_~#pathbuf~0.offset, main_~bound~0.base, main_~bound~0.offset;call main_~#pathbuf~0.base, main_~#pathbuf~0.offset := #Ultimate.allocOnStack(8);main_~bound~0.base, main_~bound~0.offset := main_~#pathbuf~0.base, 32 + main_~#pathbuf~0.offset - 4;~tmp~0.base, ~tmp~0.offset := main_~#pathbuf~0.base, 8 + main_~#pathbuf~0.offset - 4;glob2_#in~pathbuf.base, glob2_#in~pathbuf.offset, glob2_#in~pathlim.base, glob2_#in~pathlim.offset := main_~#pathbuf~0.base, main_~#pathbuf~0.offset, main_~bound~0.base, main_~bound~0.offset;havoc glob2_#res;havoc glob2_#t~post0.base, glob2_#t~post0.offset, glob2_~pathbuf.base, glob2_~pathbuf.offset, glob2_~pathlim.base, glob2_~pathlim.offset, glob2_~p~0.base, glob2_~p~0.offset;glob2_~pathbuf.base, glob2_~pathbuf.offset := glob2_#in~pathbuf.base, glob2_#in~pathbuf.offset;glob2_~pathlim.base, glob2_~pathlim.offset := glob2_#in~pathlim.base, glob2_#in~pathlim.offset;havoc glob2_~p~0.base, glob2_~p~0.offset;glob2_~p~0.base, glob2_~p~0.offset := glob2_~pathbuf.base, glob2_~pathbuf.offset; 14#L18-4true [2019-11-28 03:17:14,875 INFO L796 eck$LassoCheckResult]: Loop: 14#L18-4true assume glob2_~p~0.base == glob2_~pathlim.base; 6#L18-1true assume !!(glob2_~p~0.offset <= glob2_~pathlim.offset);assume glob2_~p~0.base == ~tmp~0.base;__VERIFIER_assert_#in~cond := (if glob2_~p~0.offset <= ~tmp~0.offset then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 15#L4true assume !(0 == __VERIFIER_assert_~cond); 10#L4-2true call write~int(1, glob2_~p~0.base, glob2_~p~0.offset, 4); 3#L18-3true glob2_#t~post0.base, glob2_#t~post0.offset := glob2_~p~0.base, glob2_~p~0.offset;glob2_~p~0.base, glob2_~p~0.offset := glob2_#t~post0.base, 4 + glob2_#t~post0.offset;havoc glob2_#t~post0.base, glob2_#t~post0.offset; 14#L18-4true [2019-11-28 03:17:14,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:17:14,885 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-11-28 03:17:14,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:17:14,897 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990160295] [2019-11-28 03:17:14,897 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:17:15,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:17:15,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:17:15,048 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:17:15,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:17:15,050 INFO L82 PathProgramCache]: Analyzing trace with hash 34515950, now seen corresponding path program 1 times [2019-11-28 03:17:15,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:17:15,051 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313165017] [2019-11-28 03:17:15,051 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:17:15,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:17:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:17:15,080 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:17:15,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:17:15,082 INFO L82 PathProgramCache]: Analyzing trace with hash 1805955436, now seen corresponding path program 1 times [2019-11-28 03:17:15,083 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:17:15,083 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038062568] [2019-11-28 03:17:15,083 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:17:15,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:17:15,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:17:15,164 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:17:15,515 WARN L192 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-11-28 03:17:15,639 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2019-11-28 03:17:15,654 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:17:15,656 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:17:15,656 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:17:15,657 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:17:15,657 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:17:15,657 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:17:15,657 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:17:15,658 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:17:15,658 INFO L133 ssoRankerPreferences]: Filename of dumped script: verisec_NetBSD-libc_loop.i_Iteration1_Lasso [2019-11-28 03:17:15,658 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:17:15,659 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:17:15,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:17:15,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:17:15,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:17:15,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:17:15,914 WARN L192 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2019-11-28 03:17:16,038 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 41 [2019-11-28 03:17:16,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:17:16,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:17:16,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:17:16,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:17:16,535 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:17:16,541 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 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 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:17:16,556 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:17:16,559 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:17:16,560 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:17:16,561 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:17:16,561 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:17:16,561 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:17:16,563 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:17:16,564 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:17:16,568 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 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 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:17:16,576 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:17:16,578 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:17:16,578 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:17:16,579 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:17:16,579 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:17:16,579 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:17:16,580 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:17:16,581 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:17:16,587 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:17:16,596 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:17:16,601 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:17:16,601 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:17:16,602 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:17:16,602 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:17:16,602 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:17:16,605 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:17:16,606 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:17:16,609 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:17:16,630 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:17:16,634 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:17:16,634 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:17:16,634 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:17:16,635 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:17:16,658 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:17:16,659 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:17:16,676 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 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 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:17:16,693 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:17:16,695 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:17:16,695 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:17:16,695 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:17:16,696 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:17:16,696 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:17:16,698 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:17:16,698 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:17:16,700 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:17:16,708 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:17:16,714 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:17:16,714 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:17:16,714 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:17:16,717 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:17:16,739 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:17:16,740 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:17:16,764 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:17:16,878 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2019-11-28 03:17:16,878 INFO L444 ModelExtractionUtils]: 25 out of 40 variables were initially zero. Simplification set additionally 11 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:17:16,941 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:17:16,957 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-28 03:17:16,957 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:17:16,958 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_glob2_~p~0.offset, ULTIMATE.start_glob2_~pathlim.offset) = -1*ULTIMATE.start_glob2_~p~0.offset + 1*ULTIMATE.start_glob2_~pathlim.offset + 2 Supporting invariants [] [2019-11-28 03:17:16,975 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-11-28 03:17:17,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:17:17,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:17:17,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 03:17:17,031 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:17:17,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:17:17,053 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 03:17:17,054 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:17:17,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:17:17,091 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-28 03:17:17,093 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states. Second operand 4 states. [2019-11-28 03:17:17,165 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states.. Second operand 4 states. Result 35 states and 41 transitions. Complement of second has 7 states. [2019-11-28 03:17:17,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-28 03:17:17,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-28 03:17:17,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 28 transitions. [2019-11-28 03:17:17,171 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 2 letters. Loop has 5 letters. [2019-11-28 03:17:17,172 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:17:17,173 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 7 letters. Loop has 5 letters. [2019-11-28 03:17:17,173 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:17:17,174 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 2 letters. Loop has 10 letters. [2019-11-28 03:17:17,174 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:17:17,175 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 41 transitions. [2019-11-28 03:17:17,181 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 03:17:17,186 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 0 states and 0 transitions. [2019-11-28 03:17:17,187 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-28 03:17:17,188 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-28 03:17:17,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-28 03:17:17,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:17:17,189 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:17:17,189 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:17:17,189 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:17:17,189 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 03:17:17,190 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-28 03:17:17,190 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 03:17:17,190 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-28 03:17:17,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:17:17 BoogieIcfgContainer [2019-11-28 03:17:17,198 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 03:17:17,199 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 03:17:17,199 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 03:17:17,200 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 03:17:17,200 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:17:14" (3/4) ... [2019-11-28 03:17:17,204 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 03:17:17,205 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 03:17:17,208 INFO L168 Benchmark]: Toolchain (without parser) took 3108.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 957.7 MB in the beginning and 843.1 MB in the end (delta: 114.5 MB). Peak memory consumption was 235.6 MB. Max. memory is 11.5 GB. [2019-11-28 03:17:17,210 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:17:17,211 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.81 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 946.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 03:17:17,214 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -170.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-28 03:17:17,216 INFO L168 Benchmark]: Boogie Preprocessor took 24.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 03:17:17,218 INFO L168 Benchmark]: RCFGBuilder took 280.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2019-11-28 03:17:17,220 INFO L168 Benchmark]: BuchiAutomizer took 2464.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 843.1 MB in the end (delta: 243.0 MB). Peak memory consumption was 243.0 MB. Max. memory is 11.5 GB. [2019-11-28 03:17:17,225 INFO L168 Benchmark]: Witness Printer took 5.57 ms. Allocated memory is still 1.2 GB. Free memory is still 843.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:17:17,236 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 237.81 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 946.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 90.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -170.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 280.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2464.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 843.1 MB in the end (delta: 243.0 MB). Peak memory consumption was 243.0 MB. Max. memory is 11.5 GB. * Witness Printer took 5.57 ms. Allocated memory is still 1.2 GB. Free memory is still 843.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * p + pathlim + 2 and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 10 SDslu, 12 SDs, 0 SdLazy, 8 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital144 mio100 ax100 hnf100 lsp95 ukn94 mio100 lsp56 div100 bol100 ite110 ukn100 eq191 hnf89 smp84 dnf100 smp100 tf100 neg99 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 59ms VariablesStem: 9 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...