./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/a.06.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 906a4fb5 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/termination-restricted-15/a.06.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-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 64bit --witnessprinter.graph.data.programhash ce15724170406b51a8a212822f3e961f133e76f0 ................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 18:43:20,770 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:43:20,773 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:43:20,815 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:43:20,815 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:43:20,824 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:43:20,827 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:43:20,831 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:43:20,833 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:43:20,836 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:43:20,838 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:43:20,839 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:43:20,839 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:43:20,843 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:43:20,844 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:43:20,846 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:43:20,847 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:43:20,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:43:20,851 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:43:20,855 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:43:20,856 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:43:20,857 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:43:20,858 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:43:20,859 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:43:20,861 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:43:20,862 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:43:20,862 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:43:20,863 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:43:20,863 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:43:20,864 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:43:20,864 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:43:20,865 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:43:20,866 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:43:20,866 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:43:20,867 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:43:20,868 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:43:20,868 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:43:20,869 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:43:20,869 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:43:20,870 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:43:20,870 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:43:20,871 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-19 18:43:20,904 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:43:20,905 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:43:20,906 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:43:20,906 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:43:20,906 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:43:20,907 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 18:43:20,907 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 18:43:20,907 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 18:43:20,907 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 18:43:20,907 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 18:43:20,908 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 18:43:20,908 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:43:20,908 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:43:20,908 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:43:20,909 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:43:20,909 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 18:43:20,909 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 18:43:20,909 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 18:43:20,909 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 18:43:20,910 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 18:43:20,910 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:43:20,910 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 18:43:20,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:43:20,911 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:43:20,911 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 18:43:20,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:43:20,911 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:43:20,912 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:43:20,912 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 18:43:20,913 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 18:43:20,913 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce15724170406b51a8a212822f3e961f133e76f0 [2020-10-19 18:43:21,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:43:21,280 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:43:21,284 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:43:21,286 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:43:21,286 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:43:21,288 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/a.06.c [2020-10-19 18:43:21,346 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/570847cb0/4409bcb4da594be28a8ebe54d86a3317/FLAG678651257 [2020-10-19 18:43:21,742 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:43:21,743 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/a.06.c [2020-10-19 18:43:21,749 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/570847cb0/4409bcb4da594be28a8ebe54d86a3317/FLAG678651257 [2020-10-19 18:43:22,095 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/570847cb0/4409bcb4da594be28a8ebe54d86a3317 [2020-10-19 18:43:22,098 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:43:22,104 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 18:43:22,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:43:22,106 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:43:22,109 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:43:22,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:43:22" (1/1) ... [2020-10-19 18:43:22,113 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77734979 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:43:22, skipping insertion in model container [2020-10-19 18:43:22,113 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:43:22" (1/1) ... [2020-10-19 18:43:22,120 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:43:22,139 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:43:22,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:43:22,302 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:43:22,325 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:43:22,341 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:43:22,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:43:22 WrapperNode [2020-10-19 18:43:22,342 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:43:22,343 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 18:43:22,343 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 18:43:22,343 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 18:43:22,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:43:22" (1/1) ... [2020-10-19 18:43:22,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:43:22" (1/1) ... [2020-10-19 18:43:22,378 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 18:43:22,379 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:43:22,379 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:43:22,379 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:43:22,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:43:22" (1/1) ... [2020-10-19 18:43:22,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:43:22" (1/1) ... [2020-10-19 18:43:22,389 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:43:22" (1/1) ... [2020-10-19 18:43:22,389 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:43:22" (1/1) ... [2020-10-19 18:43:22,392 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:43:22" (1/1) ... [2020-10-19 18:43:22,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:43:22" (1/1) ... [2020-10-19 18:43:22,459 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:43:22" (1/1) ... [2020-10-19 18:43:22,461 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:43:22,466 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:43:22,466 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:43:22,467 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:43:22,468 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:43:22" (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 [2020-10-19 18:43:22,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:43:22,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:43:22,719 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:43:22,720 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-19 18:43:22,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:43:22 BoogieIcfgContainer [2020-10-19 18:43:22,722 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:43:22,723 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 18:43:22,723 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 18:43:22,727 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 18:43:22,728 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:43:22,729 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 06:43:22" (1/3) ... [2020-10-19 18:43:22,730 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a7a44a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:43:22, skipping insertion in model container [2020-10-19 18:43:22,730 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:43:22,730 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:43:22" (2/3) ... [2020-10-19 18:43:22,731 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a7a44a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:43:22, skipping insertion in model container [2020-10-19 18:43:22,731 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:43:22,731 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:43:22" (3/3) ... [2020-10-19 18:43:22,733 INFO L373 chiAutomizerObserver]: Analyzing ICFG a.06.c [2020-10-19 18:43:22,792 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 18:43:22,792 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 18:43:22,792 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 18:43:22,792 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:43:22,792 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:43:22,794 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 18:43:22,795 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:43:22,795 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 18:43:22,808 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-10-19 18:43:22,827 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-19 18:43:22,828 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:43:22,828 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:43:22,834 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-19 18:43:22,835 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-19 18:43:22,835 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 18:43:22,835 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-10-19 18:43:22,836 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-19 18:43:22,836 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:43:22,836 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:43:22,836 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-19 18:43:22,836 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-19 18:43:22,844 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~c~0, main_~x~0, main_~y~0, main_~z~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~c~0 := 0; 3#L12-2true [2020-10-19 18:43:22,845 INFO L796 eck$LassoCheckResult]: Loop: 3#L12-2true assume !!(((((main_~y~0 >= 0 && main_~z~0 < 2147483647 - main_~y~0) || (main_~y~0 < 0 && main_~z~0 > -2147483648 - main_~y~0)) && main_~x~0 > main_~y~0 + main_~z~0) && main_~y~0 < 2147483647) && main_~z~0 < 2147483647);main_~y~0 := 1 + main_~y~0;main_~z~0 := 1 + main_~z~0; 3#L12-2true [2020-10-19 18:43:22,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:43:22,851 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-10-19 18:43:22,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:43:22,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921823208] [2020-10-19 18:43:22,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:43:22,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:43:22,949 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:43:22,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:43:22,954 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:43:22,967 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:43:22,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:43:22,969 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2020-10-19 18:43:22,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:43:22,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365825377] [2020-10-19 18:43:22,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:43:22,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:43:22,984 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:43:22,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:43:22,992 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:43:22,994 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:43:22,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:43:22,996 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-10-19 18:43:22,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:43:22,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717108647] [2020-10-19 18:43:22,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:43:23,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:43:23,007 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:43:23,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:43:23,016 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:43:23,018 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:43:23,159 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:43:23,160 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:43:23,160 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:43:23,161 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:43:23,161 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 18:43:23,161 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:43:23,161 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:43:23,162 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:43:23,162 INFO L133 ssoRankerPreferences]: Filename of dumped script: a.06.c_Iteration1_Loop [2020-10-19 18:43:23,162 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:43:23,163 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:43:23,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:43:23,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:43:23,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:43:23,515 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 26 [2020-10-19 18:43:23,524 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:43:23,525 INFO L404 LassoAnalysis]: Checking for nontermination... 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) [2020-10-19 18:43:23,540 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:43:23,541 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:43:23,551 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 18:43:23,552 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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) [2020-10-19 18:43:23,601 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:43:23,601 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:43:23,606 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 18:43:23,606 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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) [2020-10-19 18:43:23,653 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:43:23,653 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 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) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:43:23,690 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 18:43:23,691 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 18:43:23,744 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-19 18:43:23,747 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:43:23,747 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:43:23,748 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:43:23,748 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:43:23,748 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:43:23,748 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:43:23,748 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:43:23,749 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:43:23,749 INFO L133 ssoRankerPreferences]: Filename of dumped script: a.06.c_Iteration1_Loop [2020-10-19 18:43:23,750 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:43:23,751 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:43:23,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:43:23,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:43:23,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:43:24,012 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 26 [2020-10-19 18:43:24,014 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:43:24,020 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2020-10-19 18:43:24,025 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 Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:43:24,028 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:43:24,029 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:43:24,030 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:43:24,030 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:43:24,035 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:43:24,036 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:43:24,045 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 [2020-10-19 18:43:24,087 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 [2020-10-19 18:43:24,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:43:24,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:43:24,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:43:24,090 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:43:24,094 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:43:24,094 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:43:24,104 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:43:24,151 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 [2020-10-19 18:43:24,153 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:43:24,153 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:43:24,154 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:43:24,154 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-19 18:43:24,155 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:43:24,159 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-19 18:43:24,160 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:43:24,167 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:43:24,174 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-19 18:43:24,174 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:43:24,188 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 18:43:24,188 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-19 18:43:24,188 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:43:24,189 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -2*ULTIMATE.start_main_~y~0 + 4294967293 Supporting invariants [] Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:43:24,228 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-19 18:43:24,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:43:24,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:43:24,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:43:24,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:43:24,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:43:24,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:43:24,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:43:24,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:43:24,302 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-10-19 18:43:24,304 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states. Second operand 2 states. [2020-10-19 18:43:24,345 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states.. Second operand 2 states. Result 15 states and 18 transitions. Complement of second has 5 states. [2020-10-19 18:43:24,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-19 18:43:24,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-19 18:43:24,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2020-10-19 18:43:24,350 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 1 letters. [2020-10-19 18:43:24,351 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:43:24,351 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2020-10-19 18:43:24,351 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:43:24,351 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 2 letters. [2020-10-19 18:43:24,352 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:43:24,353 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2020-10-19 18:43:24,355 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 18:43:24,358 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2020-10-19 18:43:24,360 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 18:43:24,360 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 18:43:24,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 18:43:24,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 18:43:24,361 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:43:24,361 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:43:24,361 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:43:24,361 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-19 18:43:24,362 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-19 18:43:24,362 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 18:43:24,362 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-19 18:43:24,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 06:43:24 BoogieIcfgContainer [2020-10-19 18:43:24,369 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 18:43:24,369 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:43:24,369 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:43:24,370 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:43:24,370 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:43:22" (3/4) ... [2020-10-19 18:43:24,374 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 18:43:24,374 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:43:24,377 INFO L168 Benchmark]: Toolchain (without parser) took 2276.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 955.9 MB in the beginning and 939.9 MB in the end (delta: 16.0 MB). Peak memory consumption was 131.4 MB. Max. memory is 11.5 GB. [2020-10-19 18:43:24,378 INFO L168 Benchmark]: CDTParser took 1.02 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:43:24,379 INFO L168 Benchmark]: CACSL2BoogieTranslator took 236.62 ms. Allocated memory is still 1.0 GB. Free memory was 955.9 MB in the beginning and 945.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:43:24,379 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.80 ms. Allocated memory is still 1.0 GB. Free memory is still 945.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:43:24,380 INFO L168 Benchmark]: Boogie Preprocessor took 82.33 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -165.9 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2020-10-19 18:43:24,381 INFO L168 Benchmark]: RCFGBuilder took 256.21 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 11.5 GB. [2020-10-19 18:43:24,382 INFO L168 Benchmark]: BuchiAutomizer took 1646.04 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 939.9 MB in the end (delta: 153.0 MB). Peak memory consumption was 153.0 MB. Max. memory is 11.5 GB. [2020-10-19 18:43:24,383 INFO L168 Benchmark]: Witness Printer took 5.25 ms. Allocated memory is still 1.1 GB. Free memory is still 939.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:43:24,388 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.02 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 236.62 ms. Allocated memory is still 1.0 GB. Free memory was 955.9 MB in the beginning and 945.2 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 35.80 ms. Allocated memory is still 1.0 GB. Free memory is still 945.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 82.33 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -165.9 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 256.21 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1646.04 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 939.9 MB in the end (delta: 153.0 MB). Peak memory consumption was 153.0 MB. Max. memory is 11.5 GB. * Witness Printer took 5.25 ms. Allocated memory is still 1.1 GB. Free memory is still 939.9 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 -2 * y + 4294967293 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. 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: 4 SDtfs, 4 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital43 mio100 ax127 hnf100 lsp110 ukn62 mio100 lsp100 div100 bol100 ite100 ukn100 eq131 hnf95 smp100 dnf177 smp96 tf102 neg100 sie119 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 23ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...