./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/Copenhagen.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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-crafted/Copenhagen.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 9bcaeaea390de0d2b32b8c11c56b4b66e7b2005e ................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 04:13:25,486 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:13:25,490 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:13:25,538 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:13:25,539 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:13:25,545 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:13:25,548 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:13:25,556 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:13:25,560 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:13:25,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:13:25,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:13:25,575 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:13:25,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:13:25,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:13:25,583 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:13:25,586 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:13:25,587 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:13:25,593 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:13:25,597 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:13:25,607 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:13:25,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:13:25,612 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:13:25,616 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:13:25,617 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:13:25,626 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:13:25,627 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:13:25,627 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:13:25,630 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:13:25,631 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:13:25,632 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:13:25,633 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:13:25,634 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:13:25,637 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:13:25,638 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:13:25,639 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:13:25,640 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:13:25,643 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:13:25,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:13:25,644 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:13:25,647 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:13:25,648 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:13:25,649 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-26 04:13:25,716 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:13:25,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:13:25,721 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:13:25,722 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:13:25,722 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:13:25,722 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-26 04:13:25,722 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-26 04:13:25,723 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-26 04:13:25,723 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-26 04:13:25,724 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-26 04:13:25,725 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-26 04:13:25,726 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:13:25,726 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:13:25,726 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:13:25,726 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:13:25,727 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-26 04:13:25,727 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-26 04:13:25,727 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-26 04:13:25,728 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:13:25,728 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-26 04:13:25,728 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:13:25,728 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-26 04:13:25,729 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:13:25,729 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:13:25,729 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-26 04:13:25,730 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:13:25,730 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:13:25,730 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:13:25,731 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-26 04:13:25,732 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-26 04:13:25,733 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9bcaeaea390de0d2b32b8c11c56b4b66e7b2005e [2020-10-26 04:13:26,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:13:26,233 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:13:26,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:13:26,238 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:13:26,238 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:13:26,240 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Copenhagen.c [2020-10-26 04:13:26,322 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b52b90c74/198f347a6f084e1a9c293382d20127c4/FLAG9b7d37066 [2020-10-26 04:13:27,038 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:13:27,038 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Copenhagen.c [2020-10-26 04:13:27,046 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b52b90c74/198f347a6f084e1a9c293382d20127c4/FLAG9b7d37066 [2020-10-26 04:13:27,404 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b52b90c74/198f347a6f084e1a9c293382d20127c4 [2020-10-26 04:13:27,408 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:13:27,415 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:13:27,417 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:13:27,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:13:27,421 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:13:27,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:13:27" (1/1) ... [2020-10-26 04:13:27,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@269d2dde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:13:27, skipping insertion in model container [2020-10-26 04:13:27,426 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:13:27" (1/1) ... [2020-10-26 04:13:27,435 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:13:27,452 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:13:27,657 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:13:27,662 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:13:27,678 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:13:27,690 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:13:27,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:13:27 WrapperNode [2020-10-26 04:13:27,691 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:13:27,692 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:13:27,692 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:13:27,692 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:13:27,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:13:27" (1/1) ... [2020-10-26 04:13:27,707 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:13:27" (1/1) ... [2020-10-26 04:13:27,725 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:13:27,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:13:27,727 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:13:27,727 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:13:27,736 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:13:27" (1/1) ... [2020-10-26 04:13:27,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:13:27" (1/1) ... [2020-10-26 04:13:27,738 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:13:27" (1/1) ... [2020-10-26 04:13:27,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:13:27" (1/1) ... [2020-10-26 04:13:27,740 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:13:27" (1/1) ... [2020-10-26 04:13:27,745 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:13:27" (1/1) ... [2020-10-26 04:13:27,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:13:27" (1/1) ... [2020-10-26 04:13:27,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:13:27,749 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:13:27,749 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:13:27,750 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:13:27,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:13:27" (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 [2020-10-26 04:13:27,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:13:27,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:13:28,003 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:13:28,004 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-26 04:13:28,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:13:28 BoogieIcfgContainer [2020-10-26 04:13:28,006 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:13:28,008 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-26 04:13:28,008 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-26 04:13:28,013 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-26 04:13:28,014 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:13:28,015 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.10 04:13:27" (1/3) ... [2020-10-26 04:13:28,016 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@93d0ece and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:13:28, skipping insertion in model container [2020-10-26 04:13:28,017 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:13:28,017 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:13:27" (2/3) ... [2020-10-26 04:13:28,018 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@93d0ece and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:13:28, skipping insertion in model container [2020-10-26 04:13:28,018 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:13:28,018 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:13:28" (3/3) ... [2020-10-26 04:13:28,020 INFO L373 chiAutomizerObserver]: Analyzing ICFG Copenhagen.c [2020-10-26 04:13:28,122 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-26 04:13:28,122 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-26 04:13:28,123 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-26 04:13:28,123 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:13:28,123 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:13:28,123 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-26 04:13:28,124 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:13:28,124 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-26 04:13:28,143 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-10-26 04:13:28,173 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-26 04:13:28,174 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:13:28,174 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:13:28,182 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-26 04:13:28,182 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-26 04:13:28,183 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-26 04:13:28,183 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-10-26 04:13:28,184 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-26 04:13:28,184 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:13:28,184 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:13:28,185 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-26 04:13:28,185 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-26 04:13:28,195 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~oldx~0;havoc main_~x~0;havoc main_~y~0;havoc main_~oldx~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 8#L16-2true [2020-10-26 04:13:28,195 INFO L796 eck$LassoCheckResult]: Loop: 8#L16-2true assume !!(main_~x~0 >= 0 && main_~y~0 >= 0);main_~oldx~0 := main_~x~0;main_~x~0 := main_~y~0 - 1;main_~y~0 := main_~oldx~0 - 1; 8#L16-2true [2020-10-26 04:13:28,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:13:28,203 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-10-26 04:13:28,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:13:28,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326075604] [2020-10-26 04:13:28,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:13:28,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:13:28,333 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:13:28,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:13:28,346 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:13:28,368 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:13:28,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:13:28,376 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2020-10-26 04:13:28,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:13:28,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762450972] [2020-10-26 04:13:28,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:13:28,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:13:28,406 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:13:28,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:13:28,425 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:13:28,429 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:13:28,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:13:28,434 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-10-26 04:13:28,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:13:28,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105956877] [2020-10-26 04:13:28,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:13:28,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:13:28,459 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:13:28,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:13:28,466 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:13:28,468 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:13:28,598 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:13:28,599 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:13:28,599 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:13:28,599 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:13:28,600 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-26 04:13:28,600 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:13:28,600 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:13:28,600 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:13:28,601 INFO L133 ssoRankerPreferences]: Filename of dumped script: Copenhagen.c_Iteration1_Loop [2020-10-26 04:13:28,601 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:13:28,601 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:13:28,629 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:13:28,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:13:28,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:13:28,966 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:13:28,967 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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:13:28,975 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:13:28,976 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 [2020-10-26 04:13:29,026 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-26 04:13:29,026 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-26 04:13:29,870 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-26 04:13:29,876 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:13:29,876 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:13:29,876 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:13:29,876 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:13:29,876 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:13:29,876 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:13:29,876 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:13:29,877 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:13:29,877 INFO L133 ssoRankerPreferences]: Filename of dumped script: Copenhagen.c_Iteration1_Loop [2020-10-26 04:13:29,877 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:13:29,878 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:13:29,884 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:13:29,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:13:29,920 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:13:29,996 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:13:30,001 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2020-10-26 04:13:30,013 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 [2020-10-26 04:13:30,016 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:13:30,016 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:13:30,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:13:30,018 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:13:30,018 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:13:30,022 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:13:30,023 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:13:30,032 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:13:30,040 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-26 04:13:30,040 INFO L444 ModelExtractionUtils]: 1 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:13:30,051 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-26 04:13:30,051 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-26 04:13:30,052 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:13:30,053 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~x~0 + 1*ULTIMATE.start_main_~y~0 + 1 Supporting invariants [] Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:13:30,084 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-26 04:13:30,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:13:30,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:13:30,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 04:13:30,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:13:30,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:13:30,156 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-26 04:13:30,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:13:30,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:13:30,175 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 [2020-10-26 04:13:30,176 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states. Second operand 2 states. [2020-10-26 04:13:30,221 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. [2020-10-26 04:13:30,222 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 [2020-10-26 04:13:30,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-26 04:13:30,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2020-10-26 04:13:30,226 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 1 letters. [2020-10-26 04:13:30,227 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:13:30,227 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2020-10-26 04:13:30,227 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:13:30,227 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 2 letters. [2020-10-26 04:13:30,228 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:13:30,229 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2020-10-26 04:13:30,232 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:13:30,235 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2020-10-26 04:13:30,237 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-26 04:13:30,237 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-26 04:13:30,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-26 04:13:30,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 04:13:30,238 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:13:30,238 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:13:30,238 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:13:30,239 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-26 04:13:30,239 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-26 04:13:30,239 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:13:30,239 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-26 04:13:30,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.10 04:13:30 BoogieIcfgContainer [2020-10-26 04:13:30,247 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-26 04:13:30,248 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:13:30,248 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:13:30,248 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:13:30,249 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:13:28" (3/4) ... [2020-10-26 04:13:30,253 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-26 04:13:30,253 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:13:30,257 INFO L168 Benchmark]: Toolchain (without parser) took 2845.26 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 31.2 MB in the beginning and 35.4 MB in the end (delta: -4.3 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. [2020-10-26 04:13:30,258 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 54.5 MB. Free memory was 40.0 MB in the beginning and 39.9 MB in the end (delta: 31.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:13:30,259 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.33 ms. Allocated memory is still 54.5 MB. Free memory was 30.5 MB in the beginning and 35.5 MB in the end (delta: -4.9 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2020-10-26 04:13:30,260 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.64 ms. Allocated memory is still 54.5 MB. Free memory was 35.5 MB in the beginning and 34.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:13:30,260 INFO L168 Benchmark]: Boogie Preprocessor took 21.51 ms. Allocated memory is still 54.5 MB. Free memory was 34.1 MB in the beginning and 33.3 MB in the end (delta: 841.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:13:30,261 INFO L168 Benchmark]: RCFGBuilder took 257.52 ms. Allocated memory is still 54.5 MB. Free memory was 33.3 MB in the beginning and 25.8 MB in the end (delta: 7.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-10-26 04:13:30,262 INFO L168 Benchmark]: BuchiAutomizer took 2239.61 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 25.7 MB in the beginning and 35.8 MB in the end (delta: -10.1 MB). Peak memory consumption was 3.8 MB. Max. memory is 16.1 GB. [2020-10-26 04:13:30,263 INFO L168 Benchmark]: Witness Printer took 5.64 ms. Allocated memory is still 67.1 MB. Free memory was 35.8 MB in the beginning and 35.4 MB in the end (delta: 401.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:13:30,268 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 54.5 MB. Free memory was 40.0 MB in the beginning and 39.9 MB in the end (delta: 31.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 274.33 ms. Allocated memory is still 54.5 MB. Free memory was 30.5 MB in the beginning and 35.5 MB in the end (delta: -4.9 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.64 ms. Allocated memory is still 54.5 MB. Free memory was 35.5 MB in the beginning and 34.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.51 ms. Allocated memory is still 54.5 MB. Free memory was 34.1 MB in the beginning and 33.3 MB in the end (delta: 841.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 257.52 ms. Allocated memory is still 54.5 MB. Free memory was 33.3 MB in the beginning and 25.8 MB in the end (delta: 7.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2239.61 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 25.7 MB in the beginning and 35.8 MB in the end (delta: -10.1 MB). Peak memory consumption was 3.8 MB. Max. memory is 16.1 GB. * Witness Printer took 5.64 ms. Allocated memory is still 67.1 MB. Free memory was 35.8 MB in the beginning and 35.4 MB in the end (delta: 401.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 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 x + y + 1 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.9s. 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: inital21 mio100 ax157 hnf100 lsp63 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq176 hnf91 smp100 dnf100 smp100 tf105 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 49ms VariablesStem: 0 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.9s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...