./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.15_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_7d003122-d446-4bfc-8e33-b080ef082a3b/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7d003122-d446-4bfc-8e33-b080ef082a3b/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7d003122-d446-4bfc-8e33-b080ef082a3b/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7d003122-d446-4bfc-8e33-b080ef082a3b/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.15_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7d003122-d446-4bfc-8e33-b080ef082a3b/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7d003122-d446-4bfc-8e33-b080ef082a3b/bin-2019/uautomizer --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 28b8f223b97939bdb3ffe1e6bb25bd5d633f35c4 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 08:38:58,895 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 08:38:58,896 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 08:38:58,902 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 08:38:58,902 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 08:38:58,903 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 08:38:58,903 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 08:38:58,904 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 08:38:58,905 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 08:38:58,905 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 08:38:58,906 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 08:38:58,906 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 08:38:58,907 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 08:38:58,907 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 08:38:58,908 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 08:38:58,909 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 08:38:58,909 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 08:38:58,910 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 08:38:58,911 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 08:38:58,912 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 08:38:58,913 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 08:38:58,914 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 08:38:58,915 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 08:38:58,915 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 08:38:58,916 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 08:38:58,916 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 08:38:58,917 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 08:38:58,917 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 08:38:58,917 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 08:38:58,918 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 08:38:58,918 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 08:38:58,919 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 08:38:58,919 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 08:38:58,919 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 08:38:58,920 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 08:38:58,920 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 08:38:58,921 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7d003122-d446-4bfc-8e33-b080ef082a3b/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-10 08:38:58,931 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 08:38:58,931 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 08:38:58,932 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 08:38:58,932 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 08:38:58,933 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 08:38:58,933 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-10 08:38:58,933 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-10 08:38:58,933 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-10 08:38:58,933 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-10 08:38:58,933 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-10 08:38:58,933 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-10 08:38:58,933 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 08:38:58,934 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 08:38:58,934 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 08:38:58,934 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 08:38:58,934 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-10 08:38:58,934 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-10 08:38:58,934 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-10 08:38:58,934 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 08:38:58,934 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-10 08:38:58,935 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-10 08:38:58,935 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 08:38:58,935 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 08:38:58,935 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-10 08:38:58,935 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 08:38:58,935 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 08:38:58,935 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-10 08:38:58,936 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-10 08:38:58,936 INFO L133 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_7d003122-d446-4bfc-8e33-b080ef082a3b/bin-2019/uautomizer 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 -> 28b8f223b97939bdb3ffe1e6bb25bd5d633f35c4 [2018-11-10 08:38:58,960 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 08:38:58,969 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 08:38:58,971 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 08:38:58,972 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 08:38:58,973 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 08:38:58,973 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7d003122-d446-4bfc-8e33-b080ef082a3b/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/b.15_true-termination_true-no-overflow.c [2018-11-10 08:38:59,018 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7d003122-d446-4bfc-8e33-b080ef082a3b/bin-2019/uautomizer/data/6b1418928/a9f895b33bf145829a4a84591505a114/FLAGb8c601db3 [2018-11-10 08:38:59,344 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 08:38:59,344 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7d003122-d446-4bfc-8e33-b080ef082a3b/sv-benchmarks/c/termination-restricted-15/b.15_true-termination_true-no-overflow.c [2018-11-10 08:38:59,349 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7d003122-d446-4bfc-8e33-b080ef082a3b/bin-2019/uautomizer/data/6b1418928/a9f895b33bf145829a4a84591505a114/FLAGb8c601db3 [2018-11-10 08:38:59,359 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7d003122-d446-4bfc-8e33-b080ef082a3b/bin-2019/uautomizer/data/6b1418928/a9f895b33bf145829a4a84591505a114 [2018-11-10 08:38:59,362 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 08:38:59,363 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 08:38:59,364 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 08:38:59,364 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 08:38:59,368 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 08:38:59,369 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:38:59" (1/1) ... [2018-11-10 08:38:59,371 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ae94ac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:38:59, skipping insertion in model container [2018-11-10 08:38:59,372 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:38:59" (1/1) ... [2018-11-10 08:38:59,382 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 08:38:59,402 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 08:38:59,529 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:38:59,531 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 08:38:59,542 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:38:59,551 INFO L193 MainTranslator]: Completed translation [2018-11-10 08:38:59,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:38:59 WrapperNode [2018-11-10 08:38:59,552 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 08:38:59,552 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 08:38:59,552 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 08:38:59,553 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 08:38:59,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:38:59" (1/1) ... [2018-11-10 08:38:59,563 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:38:59" (1/1) ... [2018-11-10 08:38:59,574 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 08:38:59,574 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 08:38:59,574 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 08:38:59,575 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 08:38:59,581 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:38:59" (1/1) ... [2018-11-10 08:38:59,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:38:59" (1/1) ... [2018-11-10 08:38:59,581 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:38:59" (1/1) ... [2018-11-10 08:38:59,581 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:38:59" (1/1) ... [2018-11-10 08:38:59,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:38:59" (1/1) ... [2018-11-10 08:38:59,586 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:38:59" (1/1) ... [2018-11-10 08:38:59,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:38:59" (1/1) ... [2018-11-10 08:38:59,587 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 08:38:59,587 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 08:38:59,587 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 08:38:59,588 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 08:38:59,588 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:38:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7d003122-d446-4bfc-8e33-b080ef082a3b/bin-2019/uautomizer/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 [2018-11-10 08:38:59,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 08:38:59,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 08:38:59,768 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 08:38:59,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:38:59 BoogieIcfgContainer [2018-11-10 08:38:59,769 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 08:38:59,769 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-10 08:38:59,769 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-10 08:38:59,773 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-10 08:38:59,773 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 08:38:59,774 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 08:38:59" (1/3) ... [2018-11-10 08:38:59,775 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3bc2b806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 08:38:59, skipping insertion in model container [2018-11-10 08:38:59,775 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 08:38:59,775 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:38:59" (2/3) ... [2018-11-10 08:38:59,775 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3bc2b806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 08:38:59, skipping insertion in model container [2018-11-10 08:38:59,775 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 08:38:59,776 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:38:59" (3/3) ... [2018-11-10 08:38:59,777 INFO L375 chiAutomizerObserver]: Analyzing ICFG b.15_true-termination_true-no-overflow.c [2018-11-10 08:38:59,825 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 08:38:59,826 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-10 08:38:59,826 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-10 08:38:59,826 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-10 08:38:59,826 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 08:38:59,826 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 08:38:59,827 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-10 08:38:59,827 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 08:38:59,827 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-10 08:38:59,837 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-11-10 08:38:59,851 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-10 08:38:59,852 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:38:59,852 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:38:59,857 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-10 08:38:59,857 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 08:38:59,858 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-10 08:38:59,858 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-11-10 08:38:59,858 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-10 08:38:59,859 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:38:59,859 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:38:59,859 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-10 08:38:59,859 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 08:38:59,864 INFO L793 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 3#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~c~0, main_~x~0, main_~y~0, main_~z~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~c~0 := 0; 11#L13-4true [2018-11-10 08:38:59,865 INFO L795 eck$LassoCheckResult]: Loop: 11#L13-4true assume true; 6#L12-1true assume !!(main_~x~0 == main_~y~0 && main_~x~0 > main_~z~0); 4#L13-3true assume !true; 11#L13-4true [2018-11-10 08:38:59,868 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:38:59,869 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-11-10 08:38:59,870 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:38:59,871 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:38:59,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:38:59,919 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:38:59,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:38:59,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:38:59,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:38:59,944 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:38:59,944 INFO L82 PathProgramCache]: Analyzing trace with hash 35953, now seen corresponding path program 1 times [2018-11-10 08:38:59,944 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:38:59,944 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:38:59,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:38:59,945 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:38:59,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:38:59,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:38:59,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:38:59,970 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:38:59,970 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-11-10 08:38:59,973 INFO L810 eck$LassoCheckResult]: loop already infeasible [2018-11-10 08:38:59,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 08:38:59,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 08:38:59,986 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 2 states. [2018-11-10 08:38:59,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:38:59,991 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-11-10 08:38:59,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 08:38:59,993 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 11 transitions. [2018-11-10 08:38:59,993 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-10 08:38:59,996 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 6 states and 7 transitions. [2018-11-10 08:38:59,997 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2018-11-10 08:38:59,998 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2018-11-10 08:38:59,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 7 transitions. [2018-11-10 08:38:59,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 08:38:59,999 INFO L705 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2018-11-10 08:39:00,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 7 transitions. [2018-11-10 08:39:00,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-11-10 08:39:00,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-10 08:39:00,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2018-11-10 08:39:00,019 INFO L728 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2018-11-10 08:39:00,019 INFO L608 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2018-11-10 08:39:00,019 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-10 08:39:00,019 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2018-11-10 08:39:00,019 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-10 08:39:00,020 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:39:00,020 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:39:00,020 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-10 08:39:00,020 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 08:39:00,020 INFO L793 eck$LassoCheckResult]: Stem: 32#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 28#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;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; 29#L13-4 [2018-11-10 08:39:00,021 INFO L795 eck$LassoCheckResult]: Loop: 29#L13-4 assume true; 33#L12-1 assume !!(main_~x~0 == main_~y~0 && main_~x~0 > main_~z~0); 30#L13-3 assume true; 31#L13-1 assume !(main_~y~0 > main_~z~0); 29#L13-4 [2018-11-10 08:39:00,021 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:39:00,021 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2018-11-10 08:39:00,021 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:39:00,021 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:39:00,023 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:39:00,023 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:39:00,023 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:39:00,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:39:00,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:39:00,027 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:39:00,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1114315, now seen corresponding path program 1 times [2018-11-10 08:39:00,027 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:39:00,027 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:39:00,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:39:00,029 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 08:39:00,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:39:00,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:39:00,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:39:00,055 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:39:00,055 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 08:39:00,055 INFO L810 eck$LassoCheckResult]: loop already infeasible [2018-11-10 08:39:00,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 08:39:00,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 08:39:00,056 INFO L87 Difference]: Start difference. First operand 6 states and 7 transitions. cyclomatic complexity: 2 Second operand 3 states. [2018-11-10 08:39:00,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:39:00,071 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2018-11-10 08:39:00,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 08:39:00,072 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2018-11-10 08:39:00,072 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-11-10 08:39:00,073 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 8 states and 9 transitions. [2018-11-10 08:39:00,073 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-11-10 08:39:00,073 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2018-11-10 08:39:00,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 9 transitions. [2018-11-10 08:39:00,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 08:39:00,073 INFO L705 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2018-11-10 08:39:00,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 9 transitions. [2018-11-10 08:39:00,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-11-10 08:39:00,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-10 08:39:00,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2018-11-10 08:39:00,075 INFO L728 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2018-11-10 08:39:00,075 INFO L608 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2018-11-10 08:39:00,075 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-10 08:39:00,075 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 9 transitions. [2018-11-10 08:39:00,075 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-11-10 08:39:00,075 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:39:00,075 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:39:00,076 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-10 08:39:00,076 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1] [2018-11-10 08:39:00,076 INFO L793 eck$LassoCheckResult]: Stem: 52#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 48#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~c~0, main_~x~0, main_~y~0, main_~z~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~c~0 := 0; 49#L13-4 [2018-11-10 08:39:00,076 INFO L795 eck$LassoCheckResult]: Loop: 49#L13-4 assume true; 53#L12-1 assume !!(main_~x~0 == main_~y~0 && main_~x~0 > main_~z~0); 50#L13-3 assume true; 51#L13-1 assume !!(main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 54#L13-3 assume true; 55#L13-1 assume !(main_~y~0 > main_~z~0); 49#L13-4 [2018-11-10 08:39:00,076 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:39:00,076 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2018-11-10 08:39:00,077 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:39:00,077 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:39:00,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:39:00,078 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:39:00,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:39:00,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:39:00,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:39:00,082 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:39:00,082 INFO L82 PathProgramCache]: Analyzing trace with hash 1070859153, now seen corresponding path program 1 times [2018-11-10 08:39:00,082 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:39:00,082 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:39:00,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:39:00,083 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 08:39:00,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:39:00,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:39:00,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:39:00,092 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:39:00,092 INFO L82 PathProgramCache]: Analyzing trace with hash 150908371, now seen corresponding path program 1 times [2018-11-10 08:39:00,092 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:39:00,092 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:39:00,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:39:00,093 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:39:00,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:39:00,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:39:00,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:39:00,160 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 08:39:00,160 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 08:39:00,161 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 08:39:00,161 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 08:39:00,161 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 08:39:00,161 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:39:00,161 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 08:39:00,161 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 08:39:00,161 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.15_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-10 08:39:00,161 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 08:39:00,162 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 08:39:00,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:39:00,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:39:00,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:39:00,304 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 08:39:00,305 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7d003122-d446-4bfc-8e33-b080ef082a3b/bin-2019/uautomizer/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 [2018-11-10 08:39:00,318 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:39:00,318 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:39:00,349 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:39:00,349 INFO L446 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 /tmp/vcloud-vcloud-master/worker/working_dir_7d003122-d446-4bfc-8e33-b080ef082a3b/bin-2019/uautomizer/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 [2018-11-10 08:39:00,352 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:39:00,352 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:39:00,379 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:39:00,379 INFO L446 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 /tmp/vcloud-vcloud-master/worker/working_dir_7d003122-d446-4bfc-8e33-b080ef082a3b/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:39:00,382 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:39:00,382 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7d003122-d446-4bfc-8e33-b080ef082a3b/bin-2019/uautomizer/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 [2018-11-10 08:39:00,402 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 08:39:00,402 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:39:00,837 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 08:39:00,838 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 08:39:00,838 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 08:39:00,839 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 08:39:00,839 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 08:39:00,839 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 08:39:00,839 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:39:00,839 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 08:39:00,839 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 08:39:00,839 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.15_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-10 08:39:00,839 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 08:39:00,839 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 08:39:00,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:39:00,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:39:00,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:39:00,924 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 08:39:00,927 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 08:39:00,928 INFO L122 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 [2018-11-10 08:39:00,929 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:39:00,930 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:39:00,930 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:39:00,930 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:39:00,932 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 08:39:00,932 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 08:39:00,936 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:39:00,937 INFO L122 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 [2018-11-10 08:39:00,937 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:39:00,938 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:39:00,938 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:39:00,938 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:39:00,939 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 08:39:00,940 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 08:39:00,945 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:39:00,946 INFO L122 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 [2018-11-10 08:39:00,946 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:39:00,946 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:39:00,947 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:39:00,947 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:39:00,947 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:39:00,948 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:39:00,948 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:39:00,954 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 08:39:00,961 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-10 08:39:00,961 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 08:39:00,962 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 08:39:00,962 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 08:39:00,963 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 08:39:00,963 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~z~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-10 08:39:00,964 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 08:39:00,991 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:39:00,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:39:00,997 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:39:01,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:39:01,005 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:39:01,038 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:39:01,041 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-10 08:39:01,042 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 2 Second operand 5 states. [2018-11-10 08:39:01,070 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 2. Second operand 5 states. Result 18 states and 22 transitions. Complement of second has 6 states. [2018-11-10 08:39:01,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-10 08:39:01,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-10 08:39:01,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2018-11-10 08:39:01,072 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 6 letters. [2018-11-10 08:39:01,073 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:39:01,073 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 8 letters. Loop has 6 letters. [2018-11-10 08:39:01,073 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:39:01,073 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 12 letters. [2018-11-10 08:39:01,073 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:39:01,073 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 22 transitions. [2018-11-10 08:39:01,074 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-10 08:39:01,075 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 13 states and 15 transitions. [2018-11-10 08:39:01,075 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-10 08:39:01,075 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2018-11-10 08:39:01,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 15 transitions. [2018-11-10 08:39:01,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 08:39:01,075 INFO L705 BuchiCegarLoop]: Abstraction has 13 states and 15 transitions. [2018-11-10 08:39:01,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 15 transitions. [2018-11-10 08:39:01,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2018-11-10 08:39:01,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-10 08:39:01,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2018-11-10 08:39:01,077 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2018-11-10 08:39:01,077 INFO L608 BuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2018-11-10 08:39:01,077 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-10 08:39:01,077 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 14 transitions. [2018-11-10 08:39:01,077 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-10 08:39:01,077 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:39:01,078 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:39:01,078 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2018-11-10 08:39:01,078 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-10 08:39:01,078 INFO L793 eck$LassoCheckResult]: Stem: 128#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 122#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~c~0, main_~x~0, main_~y~0, main_~z~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~c~0 := 0; 123#L13-4 assume true; 129#L12-1 assume !!(main_~x~0 == main_~y~0 && main_~x~0 > main_~z~0); 126#L13-3 assume true; 127#L13-1 assume !!(main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 130#L13-3 assume true; 125#L13-1 [2018-11-10 08:39:01,078 INFO L795 eck$LassoCheckResult]: Loop: 125#L13-1 assume !!(main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 124#L13-3 assume true; 125#L13-1 [2018-11-10 08:39:01,078 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:39:01,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1805983329, now seen corresponding path program 1 times [2018-11-10 08:39:01,079 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:39:01,079 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:39:01,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:39:01,080 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:39:01,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:39:01,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:39:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:39:01,087 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:39:01,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1659, now seen corresponding path program 1 times [2018-11-10 08:39:01,087 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:39:01,087 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:39:01,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:39:01,088 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:39:01,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:39:01,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:39:01,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:39:01,092 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:39:01,092 INFO L82 PathProgramCache]: Analyzing trace with hash 383192283, now seen corresponding path program 2 times [2018-11-10 08:39:01,092 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:39:01,092 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:39:01,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:39:01,093 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:39:01,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:39:01,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:39:01,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:39:01,114 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 08:39:01,114 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 08:39:01,114 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 08:39:01,114 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 08:39:01,114 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 08:39:01,114 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:39:01,114 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 08:39:01,114 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 08:39:01,115 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.15_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-10 08:39:01,115 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 08:39:01,115 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 08:39:01,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:39:01,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:39:01,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:39:01,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:39:01,158 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 08:39:01,158 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7d003122-d446-4bfc-8e33-b080ef082a3b/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:39:01,167 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:39:01,167 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:39:01,194 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:39:01,195 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7d003122-d446-4bfc-8e33-b080ef082a3b/bin-2019/uautomizer/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 [2018-11-10 08:39:01,200 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:39:01,200 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:39:01,216 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:39:01,217 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7d003122-d446-4bfc-8e33-b080ef082a3b/bin-2019/uautomizer/z3 Starting monitored process 8 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:39:01,219 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:39:01,219 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7d003122-d446-4bfc-8e33-b080ef082a3b/bin-2019/uautomizer/z3 Starting monitored process 9 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:39:01,243 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 08:39:01,243 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:39:01,251 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:39:01,251 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=-4}, {ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=3}] Lambdas: [1, 8, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7d003122-d446-4bfc-8e33-b080ef082a3b/bin-2019/uautomizer/z3 Starting monitored process 10 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:39:01,276 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:39:01,276 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7d003122-d446-4bfc-8e33-b080ef082a3b/bin-2019/uautomizer/z3 Starting monitored process 11 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:39:01,294 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 08:39:01,294 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:39:01,515 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 08:39:01,517 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 08:39:01,517 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 08:39:01,517 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 08:39:01,517 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 08:39:01,517 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 08:39:01,517 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:39:01,517 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 08:39:01,517 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 08:39:01,517 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.15_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-10 08:39:01,517 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 08:39:01,517 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 08:39:01,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:39:01,520 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:39:01,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:39:01,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:39:01,573 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 08:39:01,573 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 08:39:01,573 INFO L122 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 [2018-11-10 08:39:01,574 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:39:01,574 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:39:01,574 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:39:01,574 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:39:01,575 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 08:39:01,575 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 08:39:01,578 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:39:01,578 INFO L122 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 [2018-11-10 08:39:01,578 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:39:01,578 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:39:01,579 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:39:01,579 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:39:01,580 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 08:39:01,580 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 08:39:01,583 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:39:01,583 INFO L122 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 [2018-11-10 08:39:01,583 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:39:01,583 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:39:01,584 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:39:01,584 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:39:01,584 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:39:01,584 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:39:01,584 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:39:01,586 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:39:01,587 INFO L122 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 [2018-11-10 08:39:01,587 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:39:01,587 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:39:01,587 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:39:01,587 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:39:01,588 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:39:01,588 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:39:01,588 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:39:01,591 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 08:39:01,593 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 08:39:01,593 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 08:39:01,593 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 08:39:01,593 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 08:39:01,594 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 08:39:01,594 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~y~0) = -1*ULTIMATE.start_main_~z~0 + 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-10 08:39:01,594 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 08:39:01,602 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:39:01,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:39:01,605 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:39:01,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:39:01,608 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:39:01,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:39:01,617 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-10 08:39:01,617 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4 Second operand 3 states. [2018-11-10 08:39:01,626 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 23 states and 26 transitions. Complement of second has 4 states. [2018-11-10 08:39:01,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-10 08:39:01,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-10 08:39:01,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2018-11-10 08:39:01,627 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 7 letters. Loop has 2 letters. [2018-11-10 08:39:01,627 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:39:01,627 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 9 letters. Loop has 2 letters. [2018-11-10 08:39:01,627 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:39:01,627 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 7 letters. Loop has 4 letters. [2018-11-10 08:39:01,627 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:39:01,627 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 26 transitions. [2018-11-10 08:39:01,629 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 08:39:01,629 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2018-11-10 08:39:01,629 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-10 08:39:01,629 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-10 08:39:01,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-10 08:39:01,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 08:39:01,629 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 08:39:01,629 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 08:39:01,629 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 08:39:01,630 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-10 08:39:01,630 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-10 08:39:01,630 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 08:39:01,630 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-10 08:39:01,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 08:39:01 BoogieIcfgContainer [2018-11-10 08:39:01,634 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-10 08:39:01,634 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 08:39:01,634 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 08:39:01,635 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 08:39:01,635 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:38:59" (3/4) ... [2018-11-10 08:39:01,637 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 08:39:01,637 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 08:39:01,638 INFO L168 Benchmark]: Toolchain (without parser) took 2275.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 959.2 MB in the beginning and 975.4 MB in the end (delta: -16.1 MB). Peak memory consumption was 127.5 MB. Max. memory is 11.5 GB. [2018-11-10 08:39:01,639 INFO L168 Benchmark]: CDTParser took 0.14 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. [2018-11-10 08:39:01,639 INFO L168 Benchmark]: CACSL2BoogieTranslator took 188.37 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 08:39:01,639 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.81 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:39:01,640 INFO L168 Benchmark]: Boogie Preprocessor took 12.80 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 08:39:01,640 INFO L168 Benchmark]: RCFGBuilder took 181.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -188.3 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2018-11-10 08:39:01,641 INFO L168 Benchmark]: BuchiAutomizer took 1864.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 975.4 MB in the end (delta: 158.8 MB). Peak memory consumption was 158.8 MB. Max. memory is 11.5 GB. [2018-11-10 08:39:01,641 INFO L168 Benchmark]: Witness Printer took 2.82 ms. Allocated memory is still 1.2 GB. Free memory is still 975.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:39:01,643 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 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 188.37 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 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 21.81 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.80 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 181.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -188.3 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1864.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 975.4 MB in the end (delta: 158.8 MB). Peak memory consumption was 158.8 MB. Max. memory is 11.5 GB. * Witness Printer took 2.82 ms. Allocated memory is still 1.2 GB. Free memory is still 975.4 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 4 terminating modules (2 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * z + x and consists of 4 locations. One deterministic module has affine ranking function -1 * z + y and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 3. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/2 HoareTripleCheckerStatistics: 28 SDtfs, 13 SDslu, 9 SDs, 0 SdLazy, 17 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax167 hnf98 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq168 hnf92 smp92 dnf100 smp100 tf110 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 8ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...