./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.14.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8d72c157-6899-465b-bd66-2559166b2125/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8d72c157-6899-465b-bd66-2559166b2125/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8d72c157-6899-465b-bd66-2559166b2125/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8d72c157-6899-465b-bd66-2559166b2125/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.14.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8d72c157-6899-465b-bd66-2559166b2125/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8d72c157-6899-465b-bd66-2559166b2125/bin/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 95b7495f0c2baf7340e092922372d61d5e360ef5 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 00:19:43,761 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 00:19:43,763 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 00:19:43,780 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 00:19:43,780 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 00:19:43,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 00:19:43,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 00:19:43,795 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 00:19:43,801 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 00:19:43,804 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 00:19:43,806 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 00:19:43,808 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 00:19:43,809 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 00:19:43,811 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 00:19:43,813 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 00:19:43,814 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 00:19:43,815 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 00:19:43,817 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 00:19:43,820 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 00:19:43,824 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 00:19:43,829 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 00:19:43,831 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 00:19:43,834 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 00:19:43,836 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 00:19:43,839 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 00:19:43,840 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 00:19:43,840 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 00:19:43,842 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 00:19:43,842 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 00:19:43,843 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 00:19:43,843 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 00:19:43,844 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 00:19:43,845 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 00:19:43,846 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 00:19:43,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 00:19:43,848 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 00:19:43,848 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 00:19:43,848 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 00:19:43,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 00:19:43,850 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 00:19:43,851 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 00:19:43,852 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8d72c157-6899-465b-bd66-2559166b2125/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-20 00:19:43,884 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 00:19:43,896 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 00:19:43,897 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 00:19:43,898 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 00:19:43,898 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 00:19:43,898 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 00:19:43,899 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 00:19:43,899 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 00:19:43,899 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 00:19:43,899 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 00:19:43,900 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 00:19:43,900 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 00:19:43,900 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 00:19:43,900 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 00:19:43,901 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 00:19:43,901 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 00:19:43,901 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 00:19:43,901 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 00:19:43,902 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 00:19:43,902 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 00:19:43,902 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 00:19:43,902 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 00:19:43,903 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 00:19:43,903 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 00:19:43,903 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 00:19:43,904 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 00:19:43,904 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 00:19:43,904 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 00:19:43,905 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 00:19:43,905 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8d72c157-6899-465b-bd66-2559166b2125/bin/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 -> 95b7495f0c2baf7340e092922372d61d5e360ef5 [2019-11-20 00:19:44,115 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 00:19:44,134 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 00:19:44,137 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 00:19:44,139 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 00:19:44,140 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 00:19:44,142 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8d72c157-6899-465b-bd66-2559166b2125/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/b.14.c [2019-11-20 00:19:44,214 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8d72c157-6899-465b-bd66-2559166b2125/bin/uautomizer/data/3f05106f9/e51c8f38dbcb4fb5aa9ca8b3b2f96e81/FLAGc0892840f [2019-11-20 00:19:44,716 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 00:19:44,717 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8d72c157-6899-465b-bd66-2559166b2125/sv-benchmarks/c/termination-restricted-15/b.14.c [2019-11-20 00:19:44,722 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8d72c157-6899-465b-bd66-2559166b2125/bin/uautomizer/data/3f05106f9/e51c8f38dbcb4fb5aa9ca8b3b2f96e81/FLAGc0892840f [2019-11-20 00:19:45,136 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8d72c157-6899-465b-bd66-2559166b2125/bin/uautomizer/data/3f05106f9/e51c8f38dbcb4fb5aa9ca8b3b2f96e81 [2019-11-20 00:19:45,138 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 00:19:45,139 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 00:19:45,140 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 00:19:45,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 00:19:45,144 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 00:19:45,145 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:19:45" (1/1) ... [2019-11-20 00:19:45,148 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@665cdbed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:45, skipping insertion in model container [2019-11-20 00:19:45,149 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:19:45" (1/1) ... [2019-11-20 00:19:45,157 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 00:19:45,175 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 00:19:45,403 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:19:45,409 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 00:19:45,515 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:19:45,531 INFO L192 MainTranslator]: Completed translation [2019-11-20 00:19:45,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:45 WrapperNode [2019-11-20 00:19:45,532 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 00:19:45,533 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 00:19:45,533 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 00:19:45,533 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 00:19:45,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:45" (1/1) ... [2019-11-20 00:19:45,553 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:45" (1/1) ... [2019-11-20 00:19:45,570 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 00:19:45,571 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 00:19:45,571 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 00:19:45,571 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 00:19:45,579 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:45" (1/1) ... [2019-11-20 00:19:45,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:45" (1/1) ... [2019-11-20 00:19:45,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:45" (1/1) ... [2019-11-20 00:19:45,580 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:45" (1/1) ... [2019-11-20 00:19:45,581 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:45" (1/1) ... [2019-11-20 00:19:45,586 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:45" (1/1) ... [2019-11-20 00:19:45,587 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:45" (1/1) ... [2019-11-20 00:19:45,589 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 00:19:45,589 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 00:19:45,589 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 00:19:45,590 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 00:19:45,591 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8d72c157-6899-465b-bd66-2559166b2125/bin/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 [2019-11-20 00:19:45,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 00:19:45,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 00:19:45,823 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 00:19:45,824 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-20 00:19:45,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:19:45 BoogieIcfgContainer [2019-11-20 00:19:45,825 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 00:19:45,826 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 00:19:45,826 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 00:19:45,830 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 00:19:45,831 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 00:19:45,831 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 12:19:45" (1/3) ... [2019-11-20 00:19:45,832 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ecae0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 12:19:45, skipping insertion in model container [2019-11-20 00:19:45,832 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 00:19:45,833 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:45" (2/3) ... [2019-11-20 00:19:45,833 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ecae0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 12:19:45, skipping insertion in model container [2019-11-20 00:19:45,833 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 00:19:45,833 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:19:45" (3/3) ... [2019-11-20 00:19:45,835 INFO L371 chiAutomizerObserver]: Analyzing ICFG b.14.c [2019-11-20 00:19:45,890 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 00:19:45,890 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 00:19:45,890 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 00:19:45,890 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 00:19:45,890 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 00:19:45,891 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 00:19:45,891 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 00:19:45,891 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 00:19:45,906 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-20 00:19:45,929 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 00:19:45,929 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 00:19:45,929 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 00:19:45,936 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-20 00:19:45,937 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 00:19:45,937 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 00:19:45,937 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-20 00:19:45,938 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 00:19:45,938 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 00:19:45,939 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 00:19:45,939 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-20 00:19:45,940 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 00:19:45,949 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 8#L12-3true [2019-11-20 00:19:45,949 INFO L796 eck$LassoCheckResult]: Loop: 8#L12-3true assume !!(main_~x~0 == main_~y~0 && main_~x~0 > 0); 3#L12-2true assume !(main_~y~0 > 0); 8#L12-3true [2019-11-20 00:19:45,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:19:45,957 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-20 00:19:45,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:19:45,971 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401692976] [2019-11-20 00:19:45,971 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:19:46,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:19:46,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:19:46,097 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:19:46,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:19:46,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1288, now seen corresponding path program 1 times [2019-11-20 00:19:46,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:19:46,101 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502435964] [2019-11-20 00:19:46,101 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:19:46,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:19:46,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:19:46,202 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502435964] [2019-11-20 00:19:46,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:19:46,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-20 00:19:46,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508911555] [2019-11-20 00:19:46,213 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-20 00:19:46,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:19:46,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 00:19:46,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 00:19:46,235 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2019-11-20 00:19:46,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:19:46,278 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2019-11-20 00:19:46,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 00:19:46,281 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2019-11-20 00:19:46,282 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 00:19:46,286 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 4 states and 5 transitions. [2019-11-20 00:19:46,287 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-11-20 00:19:46,288 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-11-20 00:19:46,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 5 transitions. [2019-11-20 00:19:46,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 00:19:46,289 INFO L688 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2019-11-20 00:19:46,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states and 5 transitions. [2019-11-20 00:19:46,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2019-11-20 00:19:46,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 00:19:46,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2019-11-20 00:19:46,334 INFO L711 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2019-11-20 00:19:46,334 INFO L591 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2019-11-20 00:19:46,335 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 00:19:46,335 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 5 transitions. [2019-11-20 00:19:46,335 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 00:19:46,335 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 00:19:46,336 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 00:19:46,336 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-20 00:19:46,336 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 00:19:46,336 INFO L794 eck$LassoCheckResult]: Stem: 26#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 27#L12-3 [2019-11-20 00:19:46,336 INFO L796 eck$LassoCheckResult]: Loop: 27#L12-3 assume !!(main_~x~0 == main_~y~0 && main_~x~0 > 0); 24#L12-2 assume !!(main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1;main_~c~0 := 1 + main_~c~0; 25#L12-2 assume !(main_~y~0 > 0); 27#L12-3 [2019-11-20 00:19:46,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:19:46,337 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2019-11-20 00:19:46,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:19:46,337 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562125054] [2019-11-20 00:19:46,338 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:19:46,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:19:46,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:19:46,346 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:19:46,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:19:46,346 INFO L82 PathProgramCache]: Analyzing trace with hash 40007, now seen corresponding path program 1 times [2019-11-20 00:19:46,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:19:46,347 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793352457] [2019-11-20 00:19:46,347 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:19:46,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:19:46,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:19:46,364 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:19:46,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:19:46,364 INFO L82 PathProgramCache]: Analyzing trace with hash 963528, now seen corresponding path program 1 times [2019-11-20 00:19:46,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:19:46,365 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539655965] [2019-11-20 00:19:46,365 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:19:46,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:19:46,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:19:46,383 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:19:46,499 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 00:19:46,500 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 00:19:46,500 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 00:19:46,500 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 00:19:46,500 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 00:19:46,500 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:19:46,500 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 00:19:46,501 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 00:19:46,501 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.14.c_Iteration2_Loop [2019-11-20 00:19:46,501 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 00:19:46,501 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 00:19:46,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:19:46,540 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:19:46,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:19:46,555 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:19:46,778 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 00:19:46,790 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8d72c157-6899-465b-bd66-2559166b2125/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 00:19:46,843 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 00:19:46,844 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:19:46,860 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 00:19:46,860 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Exception during sending of exit command (exit): Broken pipe No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8d72c157-6899-465b-bd66-2559166b2125/bin/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 [2019-11-20 00:19:46,869 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 00:19:46,869 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 00:19:46,876 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 00:19:46,876 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8d72c157-6899-465b-bd66-2559166b2125/bin/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 [2019-11-20 00:19:46,881 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 00:19:46,882 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8d72c157-6899-465b-bd66-2559166b2125/bin/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 [2019-11-20 00:19:46,906 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 00:19:46,907 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 00:19:46,936 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 00:19:46,937 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=-3}, {ULTIMATE.start_main_~c~0=2}, {ULTIMATE.start_main_~c~0=2}] Lambdas: [1, 0, 1] Nus: [0, 1] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8d72c157-6899-465b-bd66-2559166b2125/bin/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 [2019-11-20 00:19:46,944 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 00:19:46,944 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8d72c157-6899-465b-bd66-2559166b2125/bin/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 [2019-11-20 00:19:46,963 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 00:19:46,963 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 00:19:46,990 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 00:19:46,993 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 00:19:46,993 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 00:19:46,993 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 00:19:46,993 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 00:19:46,993 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 00:19:46,993 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:19:46,994 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 00:19:46,994 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 00:19:46,994 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.14.c_Iteration2_Loop [2019-11-20 00:19:46,994 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 00:19:46,994 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 00:19:46,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:19:47,003 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:19:47,008 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:19:47,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:19:47,161 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 00:19:47,167 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8d72c157-6899-465b-bd66-2559166b2125/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 00:19:47,179 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 00:19:47,182 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:19:47,182 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:19:47,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:19:47,183 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:19:47,189 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 00:19:47,189 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:19:47,195 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8d72c157-6899-465b-bd66-2559166b2125/bin/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 [2019-11-20 00:19:47,215 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 00:19:47,217 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:19:47,217 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:19:47,217 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:19:47,217 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:19:47,226 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 00:19:47,226 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 00:19:47,234 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8d72c157-6899-465b-bd66-2559166b2125/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 00:19:47,251 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 00:19:47,253 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:19:47,253 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:19:47,254 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:19:47,254 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:19:47,254 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:19:47,256 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:19:47,256 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:19:47,262 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8d72c157-6899-465b-bd66-2559166b2125/bin/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 [2019-11-20 00:19:47,283 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 00:19:47,286 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:19:47,286 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:19:47,287 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:19:47,287 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:19:47,287 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:19:47,291 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:19:47,292 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 00:19:47,295 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 00:19:47,304 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 00:19:47,304 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8d72c157-6899-465b-bd66-2559166b2125/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 00:19:47,325 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 00:19:47,325 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 00:19:47,325 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 00:19:47,326 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2019-11-20 00:19:47,331 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:19:47,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:19:47,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:19:47,371 INFO L255 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 00:19:47,372 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:19:47,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:19:47,384 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 00:19:47,385 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:19:47,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:19:47,453 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 [2019-11-20 00:19:47,454 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 4 states and 5 transitions. cyclomatic complexity: 2 Second operand 4 states. [2019-11-20 00:19:47,511 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 4 states and 5 transitions. cyclomatic complexity: 2. Second operand 4 states. Result 12 states and 17 transitions. Complement of second has 6 states. [2019-11-20 00:19:47,514 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 [2019-11-20 00:19:47,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 00:19:47,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2019-11-20 00:19:47,517 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 1 letters. Loop has 3 letters. [2019-11-20 00:19:47,518 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 00:19:47,518 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 3 letters. [2019-11-20 00:19:47,518 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 00:19:47,518 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 1 letters. Loop has 6 letters. [2019-11-20 00:19:47,519 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 00:19:47,519 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2019-11-20 00:19:47,521 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-20 00:19:47,522 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 8 states and 11 transitions. [2019-11-20 00:19:47,522 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2019-11-20 00:19:47,522 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-11-20 00:19:47,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2019-11-20 00:19:47,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 00:19:47,523 INFO L688 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2019-11-20 00:19:47,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2019-11-20 00:19:47,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2019-11-20 00:19:47,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-20 00:19:47,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2019-11-20 00:19:47,525 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-20 00:19:47,525 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-20 00:19:47,525 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 00:19:47,525 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2019-11-20 00:19:47,528 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-20 00:19:47,529 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 00:19:47,529 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 00:19:47,530 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2019-11-20 00:19:47,530 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-20 00:19:47,530 INFO L794 eck$LassoCheckResult]: Stem: 79#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 80#L12-3 assume !!(main_~x~0 == main_~y~0 && main_~x~0 > 0); 77#L12-2 assume !!(main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1;main_~c~0 := 1 + main_~c~0; 78#L12-2 assume !!(main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1;main_~c~0 := 1 + main_~c~0; 76#L12-2 [2019-11-20 00:19:47,530 INFO L796 eck$LassoCheckResult]: Loop: 76#L12-2 assume !!(main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1;main_~c~0 := 1 + main_~c~0; 76#L12-2 [2019-11-20 00:19:47,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:19:47,531 INFO L82 PathProgramCache]: Analyzing trace with hash 963530, now seen corresponding path program 1 times [2019-11-20 00:19:47,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:19:47,531 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768019962] [2019-11-20 00:19:47,531 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:19:47,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:19:47,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:19:47,595 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:19:47,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:19:47,595 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2019-11-20 00:19:47,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:19:47,596 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338973860] [2019-11-20 00:19:47,596 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:19:47,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:19:47,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:19:47,606 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:19:47,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:19:47,606 INFO L82 PathProgramCache]: Analyzing trace with hash 29869449, now seen corresponding path program 2 times [2019-11-20 00:19:47,607 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:19:47,607 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224669398] [2019-11-20 00:19:47,607 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:19:47,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:19:47,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:19:47,638 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:19:47,662 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 00:19:47,662 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 00:19:47,662 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 00:19:47,662 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 00:19:47,662 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 00:19:47,662 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:19:47,662 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 00:19:47,663 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 00:19:47,663 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.14.c_Iteration3_Loop [2019-11-20 00:19:47,663 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 00:19:47,663 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 00:19:47,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:19:47,667 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:19:47,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:19:47,683 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:19:47,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:19:47,784 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 00:19:47,785 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8d72c157-6899-465b-bd66-2559166b2125/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 00:19:47,794 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 00:19:47,795 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:19:47,800 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 00:19:47,800 INFO L440 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/run_dir_8d72c157-6899-465b-bd66-2559166b2125/bin/uautomizer/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:19:47,810 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 00:19:47,811 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8d72c157-6899-465b-bd66-2559166b2125/bin/uautomizer/z3 Starting monitored process 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:19:47,829 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 00:19:47,829 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 00:19:47,851 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 00:19:47,851 INFO L440 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=-4}, {ULTIMATE.start_main_~x~0=-1}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8d72c157-6899-465b-bd66-2559166b2125/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 00:19:47,872 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 00:19:47,872 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:19:47,878 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 00:19:47,878 INFO L440 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/run_dir_8d72c157-6899-465b-bd66-2559166b2125/bin/uautomizer/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:19:47,886 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 00:19:47,887 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8d72c157-6899-465b-bd66-2559166b2125/bin/uautomizer/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:19:47,904 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 00:19:47,904 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 00:19:47,922 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 00:19:47,922 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=-3}, {ULTIMATE.start_main_~c~0=2}, {ULTIMATE.start_main_~c~0=2}] Lambdas: [1, 0, 1] Nus: [0, 1] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8d72c157-6899-465b-bd66-2559166b2125/bin/uautomizer/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:19:47,939 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 00:19:47,939 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8d72c157-6899-465b-bd66-2559166b2125/bin/uautomizer/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:19:47,963 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 00:19:47,963 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 00:19:47,974 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 00:19:47,976 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 00:19:47,977 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 00:19:47,977 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 00:19:47,977 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 00:19:47,977 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 00:19:47,977 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:19:47,977 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 00:19:47,977 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 00:19:47,978 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.14.c_Iteration3_Loop [2019-11-20 00:19:47,978 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 00:19:47,978 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 00:19:47,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:19:47,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:19:47,992 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:19:47,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:19:48,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:19:48,097 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 00:19:48,097 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8d72c157-6899-465b-bd66-2559166b2125/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 00:19:48,107 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 00:19:48,109 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:19:48,110 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:19:48,110 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:19:48,110 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:19:48,114 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 00:19:48,114 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 00:19:48,119 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8d72c157-6899-465b-bd66-2559166b2125/bin/uautomizer/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:19:48,138 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 00:19:48,141 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:19:48,141 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:19:48,141 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:19:48,142 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:19:48,142 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:19:48,143 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:19:48,143 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 00:19:48,146 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8d72c157-6899-465b-bd66-2559166b2125/bin/uautomizer/z3 Starting monitored process 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:19:48,169 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 00:19:48,171 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:19:48,171 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:19:48,171 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:19:48,171 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:19:48,174 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 00:19:48,174 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 00:19:48,186 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8d72c157-6899-465b-bd66-2559166b2125/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 00:19:48,198 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 00:19:48,202 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:19:48,203 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:19:48,203 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:19:48,203 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:19:48,203 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:19:48,205 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:19:48,205 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:19:48,208 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8d72c157-6899-465b-bd66-2559166b2125/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 00:19:48,218 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 00:19:48,220 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:19:48,220 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:19:48,221 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:19:48,221 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:19:48,221 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:19:48,223 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:19:48,223 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:19:48,227 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 00:19:48,231 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-20 00:19:48,231 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8d72c157-6899-465b-bd66-2559166b2125/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 00:19:48,239 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 00:19:48,240 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 00:19:48,240 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 00:19:48,240 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2019-11-20 00:19:48,251 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:19:48,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:19:48,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:19:48,297 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 00:19:48,297 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:19:48,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:19:48,309 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 00:19:48,310 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:19:48,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:19:48,310 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 [2019-11-20 00:19:48,310 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 2 states. [2019-11-20 00:19:48,333 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 11 states and 15 transitions. Complement of second has 4 states. [2019-11-20 00:19:48,334 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 [2019-11-20 00:19:48,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-20 00:19:48,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2019-11-20 00:19:48,335 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 1 letters. [2019-11-20 00:19:48,335 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 00:19:48,335 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 1 letters. [2019-11-20 00:19:48,335 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 00:19:48,336 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2019-11-20 00:19:48,336 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 00:19:48,336 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 15 transitions. [2019-11-20 00:19:48,337 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 00:19:48,337 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2019-11-20 00:19:48,337 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 00:19:48,337 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 00:19:48,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 00:19:48,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 00:19:48,338 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 00:19:48,338 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 00:19:48,338 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 00:19:48,338 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-20 00:19:48,338 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 00:19:48,338 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 00:19:48,338 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 00:19:48,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 12:19:48 BoogieIcfgContainer [2019-11-20 00:19:48,348 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 00:19:48,348 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 00:19:48,348 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 00:19:48,349 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 00:19:48,349 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:19:45" (3/4) ... [2019-11-20 00:19:48,354 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 00:19:48,354 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 00:19:48,362 INFO L168 Benchmark]: Toolchain (without parser) took 3216.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.1 MB). Free memory was 950.1 MB in the beginning and 898.7 MB in the end (delta: 51.5 MB). Peak memory consumption was 226.6 MB. Max. memory is 11.5 GB. [2019-11-20 00:19:48,363 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:19:48,364 INFO L168 Benchmark]: CACSL2BoogieTranslator took 392.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.1 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -218.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-20 00:19:48,365 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.60 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:19:48,365 INFO L168 Benchmark]: Boogie Preprocessor took 18.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:19:48,366 INFO L168 Benchmark]: RCFGBuilder took 236.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 17.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 11.5 GB. [2019-11-20 00:19:48,370 INFO L168 Benchmark]: BuchiAutomizer took 2521.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 898.7 MB in the end (delta: 252.8 MB). Peak memory consumption was 252.8 MB. Max. memory is 11.5 GB. [2019-11-20 00:19:48,370 INFO L168 Benchmark]: Witness Printer took 6.07 ms. Allocated memory is still 1.2 GB. Free memory is still 898.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:19:48,378 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 392.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.1 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -218.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.60 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 236.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 17.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2521.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 898.7 MB in the end (delta: 252.8 MB). Peak memory consumption was 252.8 MB. Max. memory is 11.5 GB. * Witness Printer took 6.07 ms. Allocated memory is still 1.2 GB. Free memory is still 898.7 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function y and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/1 HoareTripleCheckerStatistics: 12 SDtfs, 6 SDslu, 5 SDs, 0 SdLazy, 15 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax152 hnf98 lsp43 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq168 hnf92 smp92 dnf100 smp100 tf110 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 27ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...