./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF --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 b91dcc12f43fdd03af0529f07bf7885945925554291ddde3b9ca40d8f32b93c1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:00:24,713 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:00:24,716 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:00:24,766 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:00:24,767 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:00:24,773 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:00:24,777 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:00:24,784 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:00:24,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:00:24,795 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:00:24,797 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:00:24,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:00:24,801 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:00:24,804 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:00:24,807 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:00:24,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:00:24,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:00:24,815 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:00:24,821 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:00:24,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:00:24,834 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:00:24,837 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:00:24,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:00:24,843 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:00:24,855 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:00:24,856 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:00:24,856 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:00:24,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:00:24,860 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:00:24,862 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:00:24,862 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:00:24,864 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:00:24,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:00:24,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:00:24,870 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:00:24,871 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:00:24,872 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:00:24,872 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:00:24,873 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:00:24,874 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:00:24,875 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:00:24,876 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-20 07:00:24,936 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:00:24,937 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:00:24,937 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:00:24,937 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:00:24,939 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:00:24,939 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:00:24,939 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:00:24,939 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-20 07:00:24,940 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-20 07:00:24,940 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-20 07:00:24,940 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-20 07:00:24,940 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-20 07:00:24,941 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-20 07:00:24,941 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:00:24,941 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 07:00:24,941 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:00:24,942 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:00:24,942 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-20 07:00:24,942 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-20 07:00:24,942 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-20 07:00:24,943 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:00:24,943 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-20 07:00:24,943 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:00:24,943 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-20 07:00:24,944 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:00:24,944 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:00:24,944 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:00:24,945 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:00:24,945 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:00:24,946 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-20 07:00:24,947 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b91dcc12f43fdd03af0529f07bf7885945925554291ddde3b9ca40d8f32b93c1 [2021-11-20 07:00:25,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:00:25,335 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:00:25,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:00:25,340 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:00:25,341 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:00:25,343 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex2.i [2021-11-20 07:00:25,449 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/data/71d1cc18f/46ba2a4c671e429eb38dda8305f6febe/FLAGc10fb0782 [2021-11-20 07:00:25,989 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:00:25,990 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex2.i [2021-11-20 07:00:25,997 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/data/71d1cc18f/46ba2a4c671e429eb38dda8305f6febe/FLAGc10fb0782 [2021-11-20 07:00:26,365 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/data/71d1cc18f/46ba2a4c671e429eb38dda8305f6febe [2021-11-20 07:00:26,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:00:26,370 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:00:26,372 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:00:26,373 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:00:26,392 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:00:26,393 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:00:26" (1/1) ... [2021-11-20 07:00:26,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3427662b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:26, skipping insertion in model container [2021-11-20 07:00:26,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:00:26" (1/1) ... [2021-11-20 07:00:26,403 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:00:26,418 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:00:26,610 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:00:26,626 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:00:26,642 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:00:26,655 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:00:26,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:26 WrapperNode [2021-11-20 07:00:26,656 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:00:26,657 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:00:26,657 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:00:26,657 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:00:26,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:26" (1/1) ... [2021-11-20 07:00:26,673 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:26" (1/1) ... [2021-11-20 07:00:26,690 INFO L137 Inliner]: procedures = 11, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 28 [2021-11-20 07:00:26,691 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:00:26,692 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:00:26,692 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:00:26,692 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:00:26,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:26" (1/1) ... [2021-11-20 07:00:26,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:26" (1/1) ... [2021-11-20 07:00:26,704 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:26" (1/1) ... [2021-11-20 07:00:26,705 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:26" (1/1) ... [2021-11-20 07:00:26,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:26" (1/1) ... [2021-11-20 07:00:26,715 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:26" (1/1) ... [2021-11-20 07:00:26,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:26" (1/1) ... [2021-11-20 07:00:26,719 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:00:26,720 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:00:26,720 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:00:26,720 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:00:26,721 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:26" (1/1) ... [2021-11-20 07:00:26,731 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:00:26,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:00:26,761 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:00:26,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-20 07:00:26,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 07:00:26,811 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2021-11-20 07:00:26,811 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2021-11-20 07:00:26,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 07:00:26,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:00:26,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:00:26,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 07:00:26,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 07:00:26,896 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:00:26,898 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:00:27,107 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:00:27,115 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:00:27,116 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 07:00:27,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:00:27 BoogieIcfgContainer [2021-11-20 07:00:27,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:00:27,130 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-20 07:00:27,131 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-20 07:00:27,134 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-20 07:00:27,135 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:00:27,136 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 07:00:26" (1/3) ... [2021-11-20 07:00:27,137 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@581b3f4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:00:27, skipping insertion in model container [2021-11-20 07:00:27,137 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:00:27,138 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:26" (2/3) ... [2021-11-20 07:00:27,139 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@581b3f4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:00:27, skipping insertion in model container [2021-11-20 07:00:27,139 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:00:27,139 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:00:27" (3/3) ... [2021-11-20 07:00:27,141 INFO L388 chiAutomizerObserver]: Analyzing ICFG rec_malloc_ex2.i [2021-11-20 07:00:27,241 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-20 07:00:27,242 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-20 07:00:27,242 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-20 07:00:27,242 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-20 07:00:27,242 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-20 07:00:27,242 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-20 07:00:27,242 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-20 07:00:27,243 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-20 07:00:27,260 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 07:00:27,307 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-11-20 07:00:27,307 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:00:27,308 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:00:27,317 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-20 07:00:27,317 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:00:27,317 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-20 07:00:27,317 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 07:00:27,322 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-11-20 07:00:27,322 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:00:27,322 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:00:27,323 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-20 07:00:27,323 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:00:27,331 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~nondet8#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~mem11#1, main_#t~mem13#1, main_#t~ret12#1, main_~op~0#1.base, main_~op~0#1.offset, main_#t~mem9#1, main_~ip~0#1.base, main_~ip~0#1.offset;call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnHeap(4);main_~ip~0#1.base, main_~ip~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;havoc main_#t~malloc7#1.base, main_#t~malloc7#1.offset;call write~int(main_#t~nondet8#1, main_~ip~0#1.base, main_~ip~0#1.offset, 4);havoc main_#t~nondet8#1; 12#L23-3true [2021-11-20 07:00:27,334 INFO L793 eck$LassoCheckResult]: Loop: 12#L23-3true call main_#t~mem9#1 := read~int(main_~ip~0#1.base, main_~ip~0#1.offset, 4); 9#L23-1true assume !!(main_#t~mem9#1 > 1);havoc main_#t~mem9#1;call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnHeap(4);main_~op~0#1.base, main_~op~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;havoc main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~mem11#1 := read~int(main_~ip~0#1.base, main_~ip~0#1.offset, 4);call write~int(main_#t~mem11#1, main_~op~0#1.base, main_~op~0#1.offset, 4);havoc main_#t~mem11#1;call main_#t~mem13#1 := read~int(main_~ip~0#1.base, main_~ip~0#1.offset, 4); 7#L26true call main_#t~ret12#1 := rec(main_~op~0#1.base, main_~op~0#1.offset, main_~ip~0#1.base, main_~ip~0#1.offset);< 11#recENTRYtrue ~p.base, ~p.offset := #in~p.base, #in~p.offset;~up.base, ~up.offset := #in~up.base, #in~up.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 10#L9true assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);call ULTIMATE.dealloc(~up.base, ~up.offset);#res := ~pv~0; 15#recFINALtrue assume true; 13#recEXITtrue >#31#return; 5#L26-1true call write~int(main_#t~mem13#1 + main_#t~ret12#1, main_~ip~0#1.base, main_~ip~0#1.offset, 4);havoc main_#t~mem13#1;havoc main_#t~ret12#1; 12#L23-3true [2021-11-20 07:00:27,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:00:27,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1219, now seen corresponding path program 1 times [2021-11-20 07:00:27,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:00:27,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649237627] [2021-11-20 07:00:27,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:00:27,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:00:27,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:00:27,510 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:00:27,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:00:27,566 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:00:27,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:00:27,572 INFO L85 PathProgramCache]: Analyzing trace with hash -5927165, now seen corresponding path program 1 times [2021-11-20 07:00:27,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:00:27,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857358813] [2021-11-20 07:00:27,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:00:27,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:00:27,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:00:27,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:00:27,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:00:27,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:00:27,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:00:27,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857358813] [2021-11-20 07:00:27,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857358813] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:00:27,883 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:00:27,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 07:00:27,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932971397] [2021-11-20 07:00:27,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:00:27,890 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-20 07:00:27,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:00:27,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 07:00:27,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 07:00:27,935 INFO L87 Difference]: Start difference. First operand has 15 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 07:00:28,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:00:28,053 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2021-11-20 07:00:28,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:00:28,060 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 19 transitions. [2021-11-20 07:00:28,063 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-11-20 07:00:28,071 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 14 states and 16 transitions. [2021-11-20 07:00:28,072 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-11-20 07:00:28,073 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-11-20 07:00:28,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 16 transitions. [2021-11-20 07:00:28,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:00:28,075 INFO L681 BuchiCegarLoop]: Abstraction has 14 states and 16 transitions. [2021-11-20 07:00:28,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 16 transitions. [2021-11-20 07:00:28,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-11-20 07:00:28,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-20 07:00:28,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2021-11-20 07:00:28,111 INFO L704 BuchiCegarLoop]: Abstraction has 14 states and 16 transitions. [2021-11-20 07:00:28,111 INFO L587 BuchiCegarLoop]: Abstraction has 14 states and 16 transitions. [2021-11-20 07:00:28,113 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-20 07:00:28,113 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 16 transitions. [2021-11-20 07:00:28,114 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-11-20 07:00:28,115 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:00:28,115 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:00:28,116 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-20 07:00:28,117 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:00:28,118 INFO L791 eck$LassoCheckResult]: Stem: 51#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 52#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~nondet8#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~mem11#1, main_#t~mem13#1, main_#t~ret12#1, main_~op~0#1.base, main_~op~0#1.offset, main_#t~mem9#1, main_~ip~0#1.base, main_~ip~0#1.offset;call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnHeap(4);main_~ip~0#1.base, main_~ip~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;havoc main_#t~malloc7#1.base, main_#t~malloc7#1.offset;call write~int(main_#t~nondet8#1, main_~ip~0#1.base, main_~ip~0#1.offset, 4);havoc main_#t~nondet8#1; 58#L23-3 [2021-11-20 07:00:28,118 INFO L793 eck$LassoCheckResult]: Loop: 58#L23-3 call main_#t~mem9#1 := read~int(main_~ip~0#1.base, main_~ip~0#1.offset, 4); 60#L23-1 assume !!(main_#t~mem9#1 > 1);havoc main_#t~mem9#1;call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnHeap(4);main_~op~0#1.base, main_~op~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;havoc main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~mem11#1 := read~int(main_~ip~0#1.base, main_~ip~0#1.offset, 4);call write~int(main_#t~mem11#1, main_~op~0#1.base, main_~op~0#1.offset, 4);havoc main_#t~mem11#1;call main_#t~mem13#1 := read~int(main_~ip~0#1.base, main_~ip~0#1.offset, 4); 54#L26 call main_#t~ret12#1 := rec(main_~op~0#1.base, main_~op~0#1.offset, main_~ip~0#1.base, main_~ip~0#1.offset);< 59#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;~up.base, ~up.offset := #in~up.base, #in~up.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 53#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~upn~0.base, ~upn~0.offset := #t~malloc3.base, #t~malloc3.offset;havoc #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~p.base, ~p.offset, 4);#t~post5 := #t~mem4;call write~int(#t~post5 - 1, ~p.base, ~p.offset, 4);havoc #t~mem4;havoc #t~post5; 55#L17 call #t~ret6 := rec(~p.base, ~p.offset, ~upn~0.base, ~upn~0.offset);< 59#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;~up.base, ~up.offset := #in~up.base, #in~up.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 53#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);call ULTIMATE.dealloc(~up.base, ~up.offset);#res := ~pv~0; 56#recFINAL assume true; 61#recEXIT >#29#return; 62#L17-1 #res := #t~ret6;havoc #t~ret6; 63#recFINAL assume true; 64#recEXIT >#31#return; 57#L26-1 call write~int(main_#t~mem13#1 + main_#t~ret12#1, main_~ip~0#1.base, main_~ip~0#1.offset, 4);havoc main_#t~mem13#1;havoc main_#t~ret12#1; 58#L23-3 [2021-11-20 07:00:28,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:00:28,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1219, now seen corresponding path program 2 times [2021-11-20 07:00:28,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:00:28,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52094775] [2021-11-20 07:00:28,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:00:28,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:00:28,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:00:28,140 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:00:28,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:00:28,167 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:00:28,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:00:28,168 INFO L85 PathProgramCache]: Analyzing trace with hash -741726607, now seen corresponding path program 1 times [2021-11-20 07:00:28,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:00:28,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070470090] [2021-11-20 07:00:28,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:00:28,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:00:28,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:00:28,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:00:28,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:00:28,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:00:28,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:00:28,574 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-20 07:00:28,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:00:28,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070470090] [2021-11-20 07:00:28,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070470090] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:00:28,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263164406] [2021-11-20 07:00:28,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:00:28,576 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:00:28,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:00:28,578 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:00:28,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 07:00:28,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:00:28,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-20 07:00:28,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:00:28,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 07:00:28,876 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-20 07:00:28,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 18 [2021-11-20 07:00:29,714 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:00:29,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:00:30,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1263164406] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:00:30,034 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-20 07:00:30,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10] total 17 [2021-11-20 07:00:30,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200024276] [2021-11-20 07:00:30,035 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-20 07:00:30,036 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-20 07:00:30,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:00:30,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-20 07:00:30,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-11-20 07:00:30,040 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. cyclomatic complexity: 4 Second operand has 18 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-20 07:00:30,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:00:30,232 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2021-11-20 07:00:30,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:00:30,234 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 19 transitions. [2021-11-20 07:00:30,235 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-11-20 07:00:30,237 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 19 transitions. [2021-11-20 07:00:30,237 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-11-20 07:00:30,237 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-11-20 07:00:30,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 19 transitions. [2021-11-20 07:00:30,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:00:30,238 INFO L681 BuchiCegarLoop]: Abstraction has 17 states and 19 transitions. [2021-11-20 07:00:30,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 19 transitions. [2021-11-20 07:00:30,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-11-20 07:00:30,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 07:00:30,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2021-11-20 07:00:30,242 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 19 transitions. [2021-11-20 07:00:30,242 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 19 transitions. [2021-11-20 07:00:30,243 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-20 07:00:30,243 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 19 transitions. [2021-11-20 07:00:30,244 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-11-20 07:00:30,244 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:00:30,244 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:00:30,245 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-20 07:00:30,246 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-11-20 07:00:30,246 INFO L791 eck$LassoCheckResult]: Stem: 170#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 171#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~nondet8#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~mem11#1, main_#t~mem13#1, main_#t~ret12#1, main_~op~0#1.base, main_~op~0#1.offset, main_#t~mem9#1, main_~ip~0#1.base, main_~ip~0#1.offset;call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnHeap(4);main_~ip~0#1.base, main_~ip~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;havoc main_#t~malloc7#1.base, main_#t~malloc7#1.offset;call write~int(main_#t~nondet8#1, main_~ip~0#1.base, main_~ip~0#1.offset, 4);havoc main_#t~nondet8#1; 177#L23-3 [2021-11-20 07:00:30,246 INFO L793 eck$LassoCheckResult]: Loop: 177#L23-3 call main_#t~mem9#1 := read~int(main_~ip~0#1.base, main_~ip~0#1.offset, 4); 179#L23-1 assume !!(main_#t~mem9#1 > 1);havoc main_#t~mem9#1;call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnHeap(4);main_~op~0#1.base, main_~op~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;havoc main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~mem11#1 := read~int(main_~ip~0#1.base, main_~ip~0#1.offset, 4);call write~int(main_#t~mem11#1, main_~op~0#1.base, main_~op~0#1.offset, 4);havoc main_#t~mem11#1;call main_#t~mem13#1 := read~int(main_~ip~0#1.base, main_~ip~0#1.offset, 4); 173#L26 call main_#t~ret12#1 := rec(main_~op~0#1.base, main_~op~0#1.offset, main_~ip~0#1.base, main_~ip~0#1.offset);< 178#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;~up.base, ~up.offset := #in~up.base, #in~up.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 172#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~upn~0.base, ~upn~0.offset := #t~malloc3.base, #t~malloc3.offset;havoc #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~p.base, ~p.offset, 4);#t~post5 := #t~mem4;call write~int(#t~post5 - 1, ~p.base, ~p.offset, 4);havoc #t~mem4;havoc #t~post5; 174#L17 call #t~ret6 := rec(~p.base, ~p.offset, ~upn~0.base, ~upn~0.offset);< 178#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;~up.base, ~up.offset := #in~up.base, #in~up.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 172#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~upn~0.base, ~upn~0.offset := #t~malloc3.base, #t~malloc3.offset;havoc #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~p.base, ~p.offset, 4);#t~post5 := #t~mem4;call write~int(#t~post5 - 1, ~p.base, ~p.offset, 4);havoc #t~mem4;havoc #t~post5; 174#L17 call #t~ret6 := rec(~p.base, ~p.offset, ~upn~0.base, ~upn~0.offset);< 178#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;~up.base, ~up.offset := #in~up.base, #in~up.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 172#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);call ULTIMATE.dealloc(~up.base, ~up.offset);#res := ~pv~0; 175#recFINAL assume true; 180#recEXIT >#29#return; 181#L17-1 #res := #t~ret6;havoc #t~ret6; 182#recFINAL assume true; 186#recEXIT >#29#return; 184#L17-1 #res := #t~ret6;havoc #t~ret6; 185#recFINAL assume true; 183#recEXIT >#31#return; 176#L26-1 call write~int(main_#t~mem13#1 + main_#t~ret12#1, main_~ip~0#1.base, main_~ip~0#1.offset, 4);havoc main_#t~mem13#1;havoc main_#t~ret12#1; 177#L23-3 [2021-11-20 07:00:30,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:00:30,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1219, now seen corresponding path program 3 times [2021-11-20 07:00:30,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:00:30,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615162676] [2021-11-20 07:00:30,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:00:30,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:00:30,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:00:30,263 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:00:30,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:00:30,275 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:00:30,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:00:30,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1620168125, now seen corresponding path program 2 times [2021-11-20 07:00:30,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:00:30,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948669774] [2021-11-20 07:00:30,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:00:30,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:00:30,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:00:30,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:00:30,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:00:30,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:00:30,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:00:30,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:00:30,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:00:30,619 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-20 07:00:30,620 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:00:30,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948669774] [2021-11-20 07:00:30,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948669774] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:00:30,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114833713] [2021-11-20 07:00:30,622 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 07:00:30,623 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:00:30,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:00:30,627 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:00:30,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 07:00:30,736 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-20 07:00:30,736 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 07:00:30,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-20 07:00:30,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:00:30,796 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-20 07:00:30,797 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 18 [2021-11-20 07:00:31,232 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-20 07:00:31,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:00:32,038 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:00:32,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2114833713] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:00:32,039 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:00:32,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 14] total 27 [2021-11-20 07:00:32,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844074126] [2021-11-20 07:00:32,040 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:00:32,040 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-20 07:00:32,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:00:32,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-20 07:00:32,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=614, Unknown=0, NotChecked=0, Total=756 [2021-11-20 07:00:32,044 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. cyclomatic complexity: 4 Second operand has 28 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 22 states have internal predecessors, (30), 6 states have call successors, (7), 5 states have call predecessors, (7), 6 states have return successors, (8), 5 states have call predecessors, (8), 6 states have call successors, (8) [2021-11-20 07:00:32,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:00:32,311 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2021-11-20 07:00:32,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-20 07:00:32,314 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 22 transitions. [2021-11-20 07:00:32,315 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-11-20 07:00:32,316 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 20 states and 22 transitions. [2021-11-20 07:00:32,317 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-11-20 07:00:32,317 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-11-20 07:00:32,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 22 transitions. [2021-11-20 07:00:32,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:00:32,317 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 22 transitions. [2021-11-20 07:00:32,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 22 transitions. [2021-11-20 07:00:32,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-11-20 07:00:32,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 07:00:32,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2021-11-20 07:00:32,327 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 22 transitions. [2021-11-20 07:00:32,327 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 22 transitions. [2021-11-20 07:00:32,327 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-20 07:00:32,328 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 22 transitions. [2021-11-20 07:00:32,329 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-11-20 07:00:32,331 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:00:32,332 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:00:32,333 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-20 07:00:32,333 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2021-11-20 07:00:32,343 INFO L791 eck$LassoCheckResult]: Stem: 390#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 391#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~nondet8#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~mem11#1, main_#t~mem13#1, main_#t~ret12#1, main_~op~0#1.base, main_~op~0#1.offset, main_#t~mem9#1, main_~ip~0#1.base, main_~ip~0#1.offset;call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnHeap(4);main_~ip~0#1.base, main_~ip~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;havoc main_#t~malloc7#1.base, main_#t~malloc7#1.offset;call write~int(main_#t~nondet8#1, main_~ip~0#1.base, main_~ip~0#1.offset, 4);havoc main_#t~nondet8#1; 397#L23-3 [2021-11-20 07:00:32,343 INFO L793 eck$LassoCheckResult]: Loop: 397#L23-3 call main_#t~mem9#1 := read~int(main_~ip~0#1.base, main_~ip~0#1.offset, 4); 399#L23-1 assume !!(main_#t~mem9#1 > 1);havoc main_#t~mem9#1;call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnHeap(4);main_~op~0#1.base, main_~op~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;havoc main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~mem11#1 := read~int(main_~ip~0#1.base, main_~ip~0#1.offset, 4);call write~int(main_#t~mem11#1, main_~op~0#1.base, main_~op~0#1.offset, 4);havoc main_#t~mem11#1;call main_#t~mem13#1 := read~int(main_~ip~0#1.base, main_~ip~0#1.offset, 4); 393#L26 call main_#t~ret12#1 := rec(main_~op~0#1.base, main_~op~0#1.offset, main_~ip~0#1.base, main_~ip~0#1.offset);< 398#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;~up.base, ~up.offset := #in~up.base, #in~up.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 392#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~upn~0.base, ~upn~0.offset := #t~malloc3.base, #t~malloc3.offset;havoc #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~p.base, ~p.offset, 4);#t~post5 := #t~mem4;call write~int(#t~post5 - 1, ~p.base, ~p.offset, 4);havoc #t~mem4;havoc #t~post5; 394#L17 call #t~ret6 := rec(~p.base, ~p.offset, ~upn~0.base, ~upn~0.offset);< 398#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;~up.base, ~up.offset := #in~up.base, #in~up.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 392#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~upn~0.base, ~upn~0.offset := #t~malloc3.base, #t~malloc3.offset;havoc #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~p.base, ~p.offset, 4);#t~post5 := #t~mem4;call write~int(#t~post5 - 1, ~p.base, ~p.offset, 4);havoc #t~mem4;havoc #t~post5; 394#L17 call #t~ret6 := rec(~p.base, ~p.offset, ~upn~0.base, ~upn~0.offset);< 398#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;~up.base, ~up.offset := #in~up.base, #in~up.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 392#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~upn~0.base, ~upn~0.offset := #t~malloc3.base, #t~malloc3.offset;havoc #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~p.base, ~p.offset, 4);#t~post5 := #t~mem4;call write~int(#t~post5 - 1, ~p.base, ~p.offset, 4);havoc #t~mem4;havoc #t~post5; 394#L17 call #t~ret6 := rec(~p.base, ~p.offset, ~upn~0.base, ~upn~0.offset);< 398#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;~up.base, ~up.offset := #in~up.base, #in~up.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 392#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);call ULTIMATE.dealloc(~up.base, ~up.offset);#res := ~pv~0; 395#recFINAL assume true; 400#recEXIT >#29#return; 401#L17-1 #res := #t~ret6;havoc #t~ret6; 402#recFINAL assume true; 409#recEXIT >#29#return; 408#L17-1 #res := #t~ret6;havoc #t~ret6; 407#recFINAL assume true; 406#recEXIT >#29#return; 404#L17-1 #res := #t~ret6;havoc #t~ret6; 405#recFINAL assume true; 403#recEXIT >#31#return; 396#L26-1 call write~int(main_#t~mem13#1 + main_#t~ret12#1, main_~ip~0#1.base, main_~ip~0#1.offset, 4);havoc main_#t~mem13#1;havoc main_#t~ret12#1; 397#L23-3 [2021-11-20 07:00:32,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:00:32,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1219, now seen corresponding path program 4 times [2021-11-20 07:00:32,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:00:32,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259903629] [2021-11-20 07:00:32,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:00:32,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:00:32,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:00:32,352 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:00:32,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:00:32,358 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:00:32,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:00:32,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1930575665, now seen corresponding path program 3 times [2021-11-20 07:00:32,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:00:32,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006821779] [2021-11-20 07:00:32,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:00:32,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:00:32,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:00:32,402 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:00:32,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:00:32,492 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:00:32,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:00:32,494 INFO L85 PathProgramCache]: Analyzing trace with hash 650376563, now seen corresponding path program 1 times [2021-11-20 07:00:32,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:00:32,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428508430] [2021-11-20 07:00:32,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:00:32,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:00:32,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:00:32,553 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:00:32,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:00:32,600 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:00:36,586 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:00:36,587 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:00:36,587 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:00:36,587 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:00:36,587 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 07:00:36,588 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:00:36,588 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:00:36,588 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:00:36,588 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex2.i_Iteration4_Lasso [2021-11-20 07:00:36,588 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:00:36,588 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:00:36,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:00:36,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:00:36,611 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:00:36,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:00:36,614 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:00:36,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:00:36,760 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:00:36,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:00:36,764 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:00:36,766 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:00:36,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:00:36,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:00:36,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:00:37,300 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:00:37,305 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 07:00:37,307 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:00:37,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:00:37,323 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:00:37,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-20 07:00:37,328 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:00:37,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:00:37,339 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:00:37,340 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:00:37,340 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:00:37,340 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:00:37,342 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:00:37,342 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:00:37,351 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:00:37,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-20 07:00:37,383 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:00:37,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:00:37,384 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:00:37,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-20 07:00:37,385 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:00:37,393 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:00:37,393 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:00:37,393 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:00:37,393 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:00:37,397 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 07:00:37,397 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 07:00:37,405 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:00:37,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-11-20 07:00:37,432 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:00:37,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:00:37,433 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:00:37,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-20 07:00:37,438 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:00:37,445 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:00:37,445 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:00:37,445 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:00:37,445 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:00:37,445 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:00:37,446 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:00:37,446 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:00:37,451 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:00:37,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-20 07:00:37,475 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:00:37,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:00:37,476 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:00:37,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-20 07:00:37,480 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:00:37,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:00:37,487 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:00:37,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:00:37,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:00:37,488 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:00:37,488 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:00:37,488 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:00:37,489 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:00:37,510 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-11-20 07:00:37,511 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:00:37,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:00:37,512 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:00:37,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-20 07:00:37,514 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:00:37,522 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:00:37,523 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:00:37,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:00:37,523 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:00:37,528 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 07:00:37,529 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 07:00:37,534 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:00:37,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-20 07:00:37,555 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:00:37,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:00:37,557 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:00:37,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-20 07:00:37,562 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:00:37,569 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:00:37,570 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-11-20 07:00:37,570 INFO L204 nArgumentSynthesizer]: 16 loop disjuncts [2021-11-20 07:00:37,570 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:00:37,959 INFO L401 nArgumentSynthesizer]: We have 608 Motzkin's Theorem applications. [2021-11-20 07:00:37,959 INFO L402 nArgumentSynthesizer]: A total of 32 supporting invariants were added. [2021-11-20 07:00:38,849 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:00:38,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-20 07:00:38,879 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:00:38,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:00:38,880 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:00:38,882 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:00:38,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-20 07:00:38,890 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:00:38,890 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:00:38,890 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:00:38,890 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:00:38,892 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 07:00:38,892 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 07:00:38,895 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:00:38,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-20 07:00:38,922 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:00:38,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:00:38,924 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:00:38,926 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:00:38,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-20 07:00:38,933 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:00:38,933 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:00:38,934 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:00:38,934 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:00:38,934 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:00:38,934 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:00:38,934 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:00:38,935 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:00:38,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-20 07:00:38,958 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:00:38,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:00:38,958 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:00:38,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-20 07:00:38,960 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:00:38,967 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:00:38,967 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:00:38,967 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:00:38,967 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:00:38,970 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 07:00:38,970 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 07:00:38,984 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:00:39,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-20 07:00:39,018 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:00:39,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:00:39,020 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:00:39,035 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:00:39,044 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:00:39,044 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:00:39,045 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:00:39,045 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:00:39,045 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:00:39,045 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:00:39,046 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:00:39,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-20 07:00:39,063 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:00:39,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-20 07:00:39,086 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:00:39,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:00:39,088 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:00:39,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-20 07:00:39,116 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:00:39,123 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:00:39,123 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:00:39,123 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:00:39,123 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:00:39,125 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 07:00:39,125 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 07:00:39,140 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 07:00:39,173 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-20 07:00:39,173 INFO L444 ModelExtractionUtils]: 4 out of 7 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-20 07:00:39,175 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:00:39,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:00:39,199 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:00:39,259 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 07:00:39,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-20 07:00:39,280 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-20 07:00:39,280 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 07:00:39,281 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~ip~0#1.base) ULTIMATE.start_main_~ip~0#1.offset)_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~ip~0#1.base) ULTIMATE.start_main_~ip~0#1.offset)_1 Supporting invariants [] [2021-11-20 07:00:39,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-20 07:00:39,320 INFO L297 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2021-11-20 07:00:39,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:00:39,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:00:39,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:00:39,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:00:39,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:00:39,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-20 07:00:39,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:00:39,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-20 07:00:39,489 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-20 07:00:39,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-20 07:00:39,826 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-20 07:00:39,829 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 8 loop predicates [2021-11-20 07:00:39,830 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 22 transitions. cyclomatic complexity: 4 Second operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 07:00:39,957 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 22 transitions. cyclomatic complexity: 4. Second operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 83 states and 91 transitions. Complement of second has 17 states. [2021-11-20 07:00:39,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2021-11-20 07:00:39,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 07:00:39,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 13 transitions. [2021-11-20 07:00:39,962 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 13 transitions. Stem has 2 letters. Loop has 26 letters. [2021-11-20 07:00:39,964 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:00:39,965 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-20 07:00:39,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:00:39,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:00:39,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:00:39,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:00:40,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:00:40,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-20 07:00:40,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:00:40,082 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-20 07:00:40,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-20 07:00:40,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:40,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-20 07:00:40,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-20 07:00:40,435 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-20 07:00:40,436 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 8 loop predicates [2021-11-20 07:00:40,437 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 22 transitions. cyclomatic complexity: 4 Second operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 07:00:40,529 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 22 transitions. cyclomatic complexity: 4. Second operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 83 states and 91 transitions. Complement of second has 17 states. [2021-11-20 07:00:40,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2021-11-20 07:00:40,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 07:00:40,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 13 transitions. [2021-11-20 07:00:40,534 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 13 transitions. Stem has 2 letters. Loop has 26 letters. [2021-11-20 07:00:40,535 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:00:40,535 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-20 07:00:40,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:00:40,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:00:40,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:00:40,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:00:40,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:00:40,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-20 07:00:40,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:00:40,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-20 07:00:40,690 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-20 07:00:40,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-20 07:00:40,993 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-20 07:00:40,994 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 8 loop predicates [2021-11-20 07:00:40,994 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 22 transitions. cyclomatic complexity: 4 Second operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 07:00:41,087 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 22 transitions. cyclomatic complexity: 4. Second operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 83 states and 91 transitions. Complement of second has 17 states. [2021-11-20 07:00:41,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2021-11-20 07:00:41,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 07:00:41,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 26 transitions. [2021-11-20 07:00:41,092 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 26 transitions. Stem has 2 letters. Loop has 26 letters. [2021-11-20 07:00:41,095 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:00:41,095 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-20 07:00:41,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:00:41,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:00:41,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:00:41,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:00:41,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:00:41,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-20 07:00:41,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:00:41,223 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-20 07:00:41,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-20 07:00:41,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:41,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-20 07:00:41,551 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-20 07:00:41,553 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 8 loop predicates [2021-11-20 07:00:41,553 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 22 transitions. cyclomatic complexity: 4 Second operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 07:00:41,636 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 22 transitions. cyclomatic complexity: 4. Second operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 83 states and 91 transitions. Complement of second has 17 states. [2021-11-20 07:00:41,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2021-11-20 07:00:41,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 07:00:41,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 26 transitions. [2021-11-20 07:00:41,641 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 26 transitions. Stem has 2 letters. Loop has 26 letters. [2021-11-20 07:00:41,643 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:00:41,643 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-20 07:00:41,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:00:41,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:00:41,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:00:41,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:00:41,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:00:41,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 42 conjunts are in the unsatisfiable core [2021-11-20 07:00:41,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:00:41,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-20 07:00:41,759 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-20 07:00:41,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-20 07:00:42,111 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-20 07:00:42,112 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 9 loop predicates [2021-11-20 07:00:42,113 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 20 states and 22 transitions. cyclomatic complexity: 4 Second operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 8 states have internal predecessors, (13), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 07:00:42,256 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,257 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,261 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,263 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:42,264 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,265 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,266 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:42,268 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,274 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,275 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,277 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,278 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,287 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,288 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,289 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:42,290 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:42,290 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,291 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,291 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,292 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,292 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,293 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,294 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:42,296 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:42,296 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:42,297 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:42,298 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,298 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,299 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,299 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,300 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,300 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,302 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,302 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,304 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,305 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,317 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,320 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,332 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,333 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:42,334 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,334 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,335 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,337 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:42,338 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:42,338 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,339 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,339 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,340 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,344 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,345 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:42,346 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,346 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,347 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,349 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,387 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,389 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:42,391 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,392 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,393 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:42,394 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,394 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,403 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,404 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,409 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:42,417 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,418 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,418 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,419 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,421 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:42,423 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:42,423 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:42,425 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:42,425 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,426 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,426 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,426 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,427 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,427 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,428 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,429 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,431 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,432 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,433 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,434 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,435 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:42,436 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:42,436 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,436 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,437 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,437 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,438 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,439 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,445 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,446 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,447 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,447 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,449 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,450 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,452 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:42,454 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:42,454 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:42,456 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:42,456 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,457 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,457 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,457 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,458 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,459 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,460 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,460 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,467 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,468 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,471 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,473 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:42,474 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:42,474 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,475 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,475 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,476 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,480 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,481 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:42,482 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,482 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,482 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,485 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,486 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,487 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:42,488 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,488 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,490 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,496 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,497 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,500 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,501 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,503 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:42,504 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,505 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:42,505 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,506 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,506 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,509 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:42,509 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,510 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,510 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,511 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,529 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,556 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,557 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,561 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,570 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,574 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,580 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:42,582 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,583 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,583 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,593 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,594 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,595 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:42,596 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:42,597 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,597 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,597 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,598 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,598 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,598 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,599 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,600 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,601 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,601 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,602 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,602 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,608 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,609 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:42,609 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,610 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,610 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,611 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,612 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,613 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,776 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,778 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,779 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,781 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,783 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,784 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,802 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,804 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,805 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,807 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,831 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,832 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,833 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:42,836 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,002 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,004 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,005 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,006 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,023 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,025 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,042 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,043 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,091 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,092 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,196 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,197 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,197 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,198 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,198 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,198 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,199 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,204 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,205 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,205 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,205 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,206 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,206 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,207 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,207 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,208 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,208 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,208 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,210 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,210 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,211 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,211 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,211 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,216 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,217 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,217 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,217 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,218 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,218 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,219 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,219 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,220 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,220 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,220 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,222 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,222 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,222 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,223 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,223 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,228 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,229 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,229 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,229 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,230 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,230 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,231 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,231 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,231 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,264 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,265 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,266 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,266 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,267 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,267 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,268 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,268 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,269 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,269 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,292 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,292 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,293 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,293 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,294 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,294 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,295 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,296 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,298 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,299 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,299 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,300 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,300 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,301 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,301 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,301 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,303 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,303 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,303 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,304 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,304 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,306 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,307 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,374 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,375 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,376 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,376 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,377 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,377 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,378 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,378 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,380 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,381 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,383 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,384 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,385 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,385 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,385 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,386 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,386 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,387 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,388 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,388 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,389 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,389 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,390 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,430 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,432 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,507 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,507 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,508 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,508 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,509 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,509 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,510 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,510 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,510 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,511 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,512 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,519 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,519 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,520 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,521 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,522 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,523 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,523 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,523 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,524 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,524 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,565 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,567 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,567 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,568 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,569 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,570 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,570 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,570 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,571 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,573 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,574 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,575 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,576 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,577 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,578 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,578 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,578 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,579 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,580 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,581 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,582 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,583 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,583 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,584 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,584 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,659 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,660 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,661 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,662 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,663 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,664 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,664 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,665 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,666 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,667 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,669 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,670 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,671 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,672 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,673 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,674 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,674 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,674 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,675 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,677 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,678 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,679 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,679 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,680 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,680 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,753 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,754 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,755 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,755 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,756 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,757 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,758 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,759 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,759 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,760 WARN L278 uchiComplementFKVNwa]: big16 [2021-11-20 07:00:43,760 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,791 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,794 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,852 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,853 WARN L278 uchiComplementFKVNwa]: big8 [2021-11-20 07:00:43,953 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 20 states and 22 transitions. cyclomatic complexity: 4 Second operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 8 states have internal predecessors, (13), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Result 5585 states and 40908 transitions. Complement of second has 1400 states 14 powerset states1386 rank states. The highest rank that occured is 9 [2021-11-20 07:00:43,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 7 non-accepting loop states 1 accepting loop states [2021-11-20 07:00:43,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 8 states have internal predecessors, (13), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 07:00:43,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 52 transitions. [2021-11-20 07:00:43,956 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 52 transitions. Stem has 2 letters. Loop has 26 letters. [2021-11-20 07:00:43,959 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:00:43,959 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-20 07:00:43,960 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.AssertionError: no settings was sufficient at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.refineBuchi(BuchiCegarLoop.java:785) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:549) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:397) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-20 07:00:43,962 INFO L158 Benchmark]: Toolchain (without parser) took 17591.79ms. Allocated memory was 94.4MB in the beginning and 245.4MB in the end (delta: 151.0MB). Free memory was 61.8MB in the beginning and 173.5MB in the end (delta: -111.7MB). Peak memory consumption was 151.7MB. Max. memory is 16.1GB. [2021-11-20 07:00:43,963 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 94.4MB. Free memory was 49.5MB in the beginning and 49.5MB in the end (delta: 41.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:00:43,963 INFO L158 Benchmark]: CACSL2BoogieTranslator took 284.00ms. Allocated memory is still 94.4MB. Free memory was 61.6MB in the beginning and 71.2MB in the end (delta: -9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 07:00:43,964 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.75ms. Allocated memory is still 94.4MB. Free memory was 71.2MB in the beginning and 69.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:00:43,964 INFO L158 Benchmark]: Boogie Preprocessor took 27.35ms. Allocated memory is still 94.4MB. Free memory was 69.7MB in the beginning and 68.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:00:43,965 INFO L158 Benchmark]: RCFGBuilder took 409.73ms. Allocated memory is still 94.4MB. Free memory was 68.5MB in the beginning and 58.3MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 07:00:43,965 INFO L158 Benchmark]: BuchiAutomizer took 16831.23ms. Allocated memory was 94.4MB in the beginning and 245.4MB in the end (delta: 151.0MB). Free memory was 58.3MB in the beginning and 173.5MB in the end (delta: -115.2MB). Peak memory consumption was 150.5MB. Max. memory is 16.1GB. [2021-11-20 07:00:43,968 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 94.4MB. Free memory was 49.5MB in the beginning and 49.5MB in the end (delta: 41.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 284.00ms. Allocated memory is still 94.4MB. Free memory was 61.6MB in the beginning and 71.2MB in the end (delta: -9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.75ms. Allocated memory is still 94.4MB. Free memory was 71.2MB in the beginning and 69.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.35ms. Allocated memory is still 94.4MB. Free memory was 69.7MB in the beginning and 68.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 409.73ms. Allocated memory is still 94.4MB. Free memory was 68.5MB in the beginning and 58.3MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 16831.23ms. Allocated memory was 94.4MB in the beginning and 245.4MB in the end (delta: 151.0MB). Free memory was 58.3MB in the beginning and 173.5MB in the end (delta: -115.2MB). Peak memory consumption was 150.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: AssertionError: no settings was sufficient de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: AssertionError: no settings was sufficient: de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.refineBuchi(BuchiCegarLoop.java:785) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-20 07:00:44,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 07:00:44,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 07:00:44,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebd4e98d-baeb-4825-9856-3283268aaa9d/bin/uautomizer-DQz5hQGWxF/config using search string *Termination*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: no settings was sufficient