./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be --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 82f10acf23a705ed9ee52063aab9490fd4596871d88518858bc1e47422aca9cc .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:32:41,794 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:32:41,798 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:32:41,859 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:32:41,860 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:32:41,862 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:32:41,865 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:32:41,868 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:32:41,871 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:32:41,873 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:32:41,874 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:32:41,876 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:32:41,877 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:32:41,879 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:32:41,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:32:41,892 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:32:41,894 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:32:41,896 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:32:41,899 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:32:41,903 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:32:41,912 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:32:41,916 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:32:41,926 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:32:41,927 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:32:41,932 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:32:41,940 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:32:41,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:32:41,942 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:32:41,943 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:32:41,944 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:32:41,947 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:32:41,956 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:32:41,957 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:32:41,959 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:32:41,961 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:32:41,962 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:32:41,964 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:32:41,964 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:32:41,964 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:32:41,966 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:32:41,967 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:32:41,968 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-21 19:32:42,026 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:32:42,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:32:42,028 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:32:42,028 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:32:42,030 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:32:42,030 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:32:42,031 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:32:42,031 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:32:42,031 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:32:42,031 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:32:42,033 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:32:42,033 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:32:42,033 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:32:42,034 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:32:42,034 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:32:42,034 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:32:42,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:32:42,035 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:32:42,035 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:32:42,035 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:32:42,036 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:32:42,036 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:32:42,036 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:32:42,036 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:32:42,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:32:42,037 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:32:42,039 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:32:42,040 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:32:42,040 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:32:42,041 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:32:42,041 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_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82f10acf23a705ed9ee52063aab9490fd4596871d88518858bc1e47422aca9cc [2021-10-21 19:32:42,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:32:42,400 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:32:42,403 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:32:42,405 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:32:42,405 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:32:42,406 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9.c [2021-10-21 19:32:42,478 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/data/bef2bc934/fa391c098dd04ff697ff945b068f8f38/FLAG9d4003cd4 [2021-10-21 19:32:43,059 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:32:43,059 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9.c [2021-10-21 19:32:43,066 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/data/bef2bc934/fa391c098dd04ff697ff945b068f8f38/FLAG9d4003cd4 [2021-10-21 19:32:43,425 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/data/bef2bc934/fa391c098dd04ff697ff945b068f8f38 [2021-10-21 19:32:43,428 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:32:43,430 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:32:43,450 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:32:43,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:32:43,454 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:32:43,454 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:32:43" (1/1) ... [2021-10-21 19:32:43,456 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f9c5950 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:32:43, skipping insertion in model container [2021-10-21 19:32:43,456 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:32:43" (1/1) ... [2021-10-21 19:32:43,464 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:32:43,481 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:32:43,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:32:43,638 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:32:43,654 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:32:43,668 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:32:43,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:32:43 WrapperNode [2021-10-21 19:32:43,669 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:32:43,671 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:32:43,671 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:32:43,671 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:32:43,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:32:43" (1/1) ... [2021-10-21 19:32:43,686 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:32:43" (1/1) ... [2021-10-21 19:32:43,706 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:32:43,707 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:32:43,707 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:32:43,708 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:32:43,718 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:32:43" (1/1) ... [2021-10-21 19:32:43,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:32:43" (1/1) ... [2021-10-21 19:32:43,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:32:43" (1/1) ... [2021-10-21 19:32:43,719 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:32:43" (1/1) ... [2021-10-21 19:32:43,721 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:32:43" (1/1) ... [2021-10-21 19:32:43,726 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:32:43" (1/1) ... [2021-10-21 19:32:43,727 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:32:43" (1/1) ... [2021-10-21 19:32:43,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:32:43,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:32:43,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:32:43,730 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:32:43,731 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:32:43" (1/1) ... [2021-10-21 19:32:43,740 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:43,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:43,769 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:43,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:32:43,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:32:43,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:32:44,035 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:32:44,036 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-21 19:32:44,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:32:44 BoogieIcfgContainer [2021-10-21 19:32:44,039 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:32:44,041 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:32:44,041 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:32:44,045 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:32:44,046 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:32:44,047 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:32:43" (1/3) ... [2021-10-21 19:32:44,049 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c466164 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:32:44, skipping insertion in model container [2021-10-21 19:32:44,050 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:32:44,050 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:32:43" (2/3) ... [2021-10-21 19:32:44,051 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c466164 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:32:44, skipping insertion in model container [2021-10-21 19:32:44,052 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:32:44,052 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:32:44" (3/3) ... [2021-10-21 19:32:44,054 INFO L389 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-cousot9.c [2021-10-21 19:32:44,126 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:32:44,127 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:32:44,127 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:32:44,127 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:32:44,127 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:32:44,127 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:32:44,128 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:32:44,128 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:32:44,146 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:32:44,169 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:32:44,170 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:32:44,170 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:32:44,177 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-21 19:32:44,178 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:32:44,178 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:32:44,178 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:32:44,180 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:32:44,180 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:32:44,180 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:32:44,181 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-21 19:32:44,181 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:32:44,190 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~j~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~N~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~i~0 := main_~N~0; 3#L19-2true [2021-10-21 19:32:44,191 INFO L793 eck$LassoCheckResult]: Loop: 3#L19-2true assume !!(main_~i~0 > 0); 8#L19true assume main_~j~0 > 0;main_~j~0 := main_~j~0 - 1; 3#L19-2true [2021-10-21 19:32:44,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:44,199 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-21 19:32:44,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:44,215 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814669983] [2021-10-21 19:32:44,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:44,217 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:44,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:44,296 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:32:44,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:44,318 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:32:44,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:44,322 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2021-10-21 19:32:44,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:44,325 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179936207] [2021-10-21 19:32:44,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:44,326 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:44,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:44,368 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:32:44,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:44,388 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:32:44,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:44,390 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2021-10-21 19:32:44,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:44,391 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710135165] [2021-10-21 19:32:44,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:44,391 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:44,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:44,400 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:32:44,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:44,408 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:32:44,568 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:32:44,569 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:32:44,569 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:32:44,569 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:32:44,570 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 19:32:44,570 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:44,570 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:32:44,570 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:32:44,571 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration1_Loop [2021-10-21 19:32:44,571 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:32:44,571 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:32:44,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:44,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:44,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:44,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:44,797 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:32:44,797 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 19:32:44,811 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:44,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:44,814 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:44,820 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:32:44,820 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:32:44,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 19:32:44,850 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:32:44,851 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:32:44,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:44,897 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:44,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:44,901 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:44,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 19:32:44,905 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:32:44,905 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:32:44,937 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:32:44,937 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:32:44,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:44,976 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:44,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:44,978 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:44,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 19:32:44,980 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:32:44,982 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:32:45,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:45,029 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:45,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:45,031 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:45,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 19:32:45,033 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 19:32:45,033 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:32:45,080 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 19:32:45,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:45,084 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:32:45,085 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:32:45,085 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:32:45,085 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:32:45,085 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:32:45,085 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:45,085 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:32:45,085 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:32:45,085 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration1_Loop [2021-10-21 19:32:45,086 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:32:45,086 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:32:45,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:45,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:45,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:45,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:45,210 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:32:45,216 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:32:45,218 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:45,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:45,219 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:45,226 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 [2021-10-21 19:32:45,238 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:32:45,239 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:32:45,239 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:32:45,239 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:32:45,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-21 19:32:45,257 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:32:45,257 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:32:45,265 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:32:45,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:45,292 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:45,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:45,294 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:45,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-21 19:32:45,296 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 [2021-10-21 19:32:45,305 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:32:45,305 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:32:45,306 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:32:45,306 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:32:45,306 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:32:45,308 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:32:45,308 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:32:45,337 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:32:45,349 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 19:32:45,349 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-21 19:32:45,351 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:45,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:45,352 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:45,373 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:32:45,373 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 19:32:45,373 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:32:45,374 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2021-10-21 19:32:45,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-21 19:32:45,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:45,410 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 19:32:45,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:45,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:32:45,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:32:45,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:32:45,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:32:45,490 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:32:45,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:32:45,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:32:45,531 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-21 19:32:45,532 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:32:45,573 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 23 states and 30 transitions. Complement of second has 6 states. [2021-10-21 19:32:45,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 19:32:45,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:32:45,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2021-10-21 19:32:45,578 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2021-10-21 19:32:45,579 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:32:45,580 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-21 19:32:45,580 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:32:45,580 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2021-10-21 19:32:45,580 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:32:45,582 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2021-10-21 19:32:45,585 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:32:45,589 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2021-10-21 19:32:45,591 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-10-21 19:32:45,591 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-10-21 19:32:45,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2021-10-21 19:32:45,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:32:45,592 INFO L681 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-21 19:32:45,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2021-10-21 19:32:45,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-10-21 19:32:45,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:32:45,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2021-10-21 19:32:45,620 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-21 19:32:45,620 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-21 19:32:45,620 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:32:45,620 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2021-10-21 19:32:45,621 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:32:45,621 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:32:45,621 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:32:45,622 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-21 19:32:45,622 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:32:45,622 INFO L791 eck$LassoCheckResult]: Stem: 68#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~j~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~N~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~i~0 := main_~N~0; 69#L19-2 assume !!(main_~i~0 > 0); 67#L19 assume !(main_~j~0 > 0);main_~j~0 := main_~N~0;main_~i~0 := main_~i~0 - 1; 63#L19-2 [2021-10-21 19:32:45,622 INFO L793 eck$LassoCheckResult]: Loop: 63#L19-2 assume !!(main_~i~0 > 0); 64#L19 assume main_~j~0 > 0;main_~j~0 := main_~j~0 - 1; 63#L19-2 [2021-10-21 19:32:45,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:45,623 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2021-10-21 19:32:45,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:45,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228207064] [2021-10-21 19:32:45,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:45,624 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:45,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:45,632 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:32:45,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:45,638 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:32:45,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:45,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2021-10-21 19:32:45,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:45,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411108520] [2021-10-21 19:32:45,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:45,640 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:45,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:45,646 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:32:45,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:45,653 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:32:45,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:45,654 INFO L82 PathProgramCache]: Analyzing trace with hash 29865320, now seen corresponding path program 1 times [2021-10-21 19:32:45,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:45,655 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268421894] [2021-10-21 19:32:45,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:45,655 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:45,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:45,676 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:32:45,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:45,685 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:32:45,711 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:32:45,712 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:32:45,712 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:32:45,712 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:32:45,712 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 19:32:45,713 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:45,713 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:32:45,713 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:32:45,713 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration2_Loop [2021-10-21 19:32:45,713 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:32:45,713 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:32:45,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:45,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:45,727 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:45,730 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:45,777 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:32:45,778 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 19:32:45,778 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:45,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:45,779 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:45,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-21 19:32:45,788 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:32:45,788 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:32:45,812 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:32:45,812 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:32:45,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:45,848 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:45,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:45,849 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:45,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-21 19:32:45,855 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:32:45,855 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:32:45,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:45,903 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:45,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:45,904 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:45,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-21 19:32:45,909 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 19:32:45,909 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:32:45,971 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 19:32:45,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:45,977 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:32:45,978 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:32:45,978 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:32:45,978 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:32:45,978 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:32:45,978 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:45,978 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:32:45,978 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:32:45,978 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration2_Loop [2021-10-21 19:32:45,978 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:32:45,978 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:32:45,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:45,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:46,005 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:46,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:46,075 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:32:46,076 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:32:46,077 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:46,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:46,081 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:46,090 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 [2021-10-21 19:32:46,102 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:32:46,102 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:32:46,102 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:32:46,102 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:32:46,102 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:32:46,105 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:32:46,105 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:32:46,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-21 19:32:46,124 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:32:46,128 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-21 19:32:46,128 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 19:32:46,129 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:46,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:46,131 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:46,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-21 19:32:46,137 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:32:46,138 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 19:32:46,138 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:32:46,138 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2021-10-21 19:32:46,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:46,181 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 19:32:46,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:46,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:32:46,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:32:46,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:32:46,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:32:46,225 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:32:46,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:32:46,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:32:46,245 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-21 19:32:46,245 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:32:46,277 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 16 transitions. Complement of second has 5 states. [2021-10-21 19:32:46,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 19:32:46,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:32:46,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-10-21 19:32:46,279 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-21 19:32:46,280 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:32:46,281 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-21 19:32:46,281 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:32:46,281 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2021-10-21 19:32:46,281 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:32:46,281 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2021-10-21 19:32:46,284 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:32:46,286 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2021-10-21 19:32:46,286 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-21 19:32:46,287 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-21 19:32:46,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2021-10-21 19:32:46,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:32:46,287 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2021-10-21 19:32:46,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2021-10-21 19:32:46,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-21 19:32:46,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:32:46,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2021-10-21 19:32:46,291 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2021-10-21 19:32:46,291 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2021-10-21 19:32:46,291 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 19:32:46,291 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2021-10-21 19:32:46,293 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:32:46,293 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:32:46,294 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:32:46,294 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2021-10-21 19:32:46,295 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:32:46,295 INFO L791 eck$LassoCheckResult]: Stem: 121#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~j~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~N~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~i~0 := main_~N~0; 122#L19-2 assume !!(main_~i~0 > 0); 120#L19 assume !(main_~j~0 > 0);main_~j~0 := main_~N~0;main_~i~0 := main_~i~0 - 1; 123#L19-2 assume !!(main_~i~0 > 0); 124#L19 assume !(main_~j~0 > 0);main_~j~0 := main_~N~0;main_~i~0 := main_~i~0 - 1; 116#L19-2 [2021-10-21 19:32:46,295 INFO L793 eck$LassoCheckResult]: Loop: 116#L19-2 assume !!(main_~i~0 > 0); 117#L19 assume main_~j~0 > 0;main_~j~0 := main_~j~0 - 1; 116#L19-2 [2021-10-21 19:32:46,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:46,296 INFO L82 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 2 times [2021-10-21 19:32:46,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:46,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989242707] [2021-10-21 19:32:46,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:46,299 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:46,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:32:46,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:46,381 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-10-21 19:32:46,423 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:32:46,424 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:32:46,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989242707] [2021-10-21 19:32:46,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989242707] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:32:46,425 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715299032] [2021-10-21 19:32:46,425 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:32:46,426 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:32:46,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:46,427 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:32:46,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-21 19:32:46,481 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:32:46,481 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:32:46,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 19:32:46,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:32:46,575 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:32:46,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715299032] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:32:46,575 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:32:46,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2021-10-21 19:32:46,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131465690] [2021-10-21 19:32:46,581 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:32:46,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:46,582 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2021-10-21 19:32:46,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:46,586 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162087350] [2021-10-21 19:32:46,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:46,587 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:46,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:46,595 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:32:46,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:46,605 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:32:46,635 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:32:46,635 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:32:46,635 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:32:46,635 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:32:46,636 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 19:32:46,636 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:46,636 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:32:46,636 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:32:46,636 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration3_Loop [2021-10-21 19:32:46,636 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:32:46,637 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:32:46,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:46,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:46,648 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:46,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:46,698 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:32:46,698 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 19:32:46,699 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:46,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:46,701 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:46,709 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:32:46,710 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:32:46,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-21 19:32:46,733 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:32:46,733 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=1} Honda state: {ULTIMATE.start_main_~i~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:32:46,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:46,758 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:46,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:46,759 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:46,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-21 19:32:46,762 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:32:46,762 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:32:46,778 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:32:46,778 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:32:46,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:46,808 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:46,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:46,809 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:46,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-21 19:32:46,811 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:32:46,811 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:32:46,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:46,854 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:46,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:46,855 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:46,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-21 19:32:46,857 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 19:32:46,857 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:32:46,899 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 19:32:46,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:46,905 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:32:46,905 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:32:46,905 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:32:46,905 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:32:46,905 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:32:46,906 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:46,906 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:32:46,906 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:32:46,906 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration3_Loop [2021-10-21 19:32:46,906 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:32:46,906 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:32:46,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:46,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:46,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:46,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:46,971 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:32:46,972 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:32:46,972 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:46,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:46,973 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:46,986 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 [2021-10-21 19:32:46,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:32:46,997 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:32:46,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:32:46,998 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:32:46,998 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:32:46,999 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:32:46,999 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:32:47,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-21 19:32:47,016 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:32:47,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:47,057 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:47,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:47,058 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:47,069 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 [2021-10-21 19:32:47,080 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:32:47,081 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:32:47,081 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:32:47,081 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:32:47,084 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:32:47,085 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:32:47,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-21 19:32:47,104 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:32:47,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:47,150 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:47,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:47,152 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:47,167 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 [2021-10-21 19:32:47,178 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:32:47,178 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:32:47,178 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:32:47,178 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:32:47,178 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:32:47,180 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:32:47,180 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:32:47,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-21 19:32:47,200 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:32:47,203 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-21 19:32:47,203 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 19:32:47,204 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:47,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:47,205 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:47,211 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:32:47,211 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 19:32:47,211 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:32:47,212 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2021-10-21 19:32:47,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-21 19:32:47,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:47,257 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 19:32:47,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:47,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:32:47,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:32:47,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:32:47,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:32:47,303 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:32:47,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:32:47,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:32:47,321 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-21 19:32:47,321 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:32:47,330 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 20 transitions. Complement of second has 5 states. [2021-10-21 19:32:47,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 19:32:47,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:32:47,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-10-21 19:32:47,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-21 19:32:47,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:32:47,332 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 19:32:47,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:47,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:32:47,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:32:47,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:32:47,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:32:47,371 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:32:47,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:32:47,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:32:47,381 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-21 19:32:47,381 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:32:47,389 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 20 transitions. Complement of second has 5 states. [2021-10-21 19:32:47,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 19:32:47,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:32:47,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-10-21 19:32:47,390 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-21 19:32:47,390 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:32:47,390 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 19:32:47,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:47,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:32:47,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:32:47,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:32:47,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:32:47,429 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:32:47,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:32:47,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:32:47,438 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 1 loop predicates [2021-10-21 19:32:47,438 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:32:47,446 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 15 states and 23 transitions. Complement of second has 4 states. [2021-10-21 19:32:47,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 19:32:47,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:32:47,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-10-21 19:32:47,447 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-21 19:32:47,448 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:32:47,448 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2021-10-21 19:32:47,448 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:32:47,448 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 4 letters. [2021-10-21 19:32:47,449 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:32:47,449 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 23 transitions. [2021-10-21 19:32:47,450 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-21 19:32:47,451 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 19 transitions. [2021-10-21 19:32:47,451 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-10-21 19:32:47,451 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-21 19:32:47,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2021-10-21 19:32:47,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:32:47,452 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2021-10-21 19:32:47,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2021-10-21 19:32:47,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 5. [2021-10-21 19:32:47,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:32:47,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2021-10-21 19:32:47,453 INFO L704 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2021-10-21 19:32:47,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:32:47,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 19:32:47,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:32:47,459 INFO L87 Difference]: Start difference. First operand 5 states and 7 transitions. Second operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:32:47,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:32:47,531 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2021-10-21 19:32:47,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 19:32:47,532 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2021-10-21 19:32:47,533 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-10-21 19:32:47,534 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 16 transitions. [2021-10-21 19:32:47,534 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-21 19:32:47,534 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-21 19:32:47,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2021-10-21 19:32:47,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:32:47,534 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2021-10-21 19:32:47,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2021-10-21 19:32:47,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 8. [2021-10-21 19:32:47,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:32:47,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2021-10-21 19:32:47,536 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2021-10-21 19:32:47,536 INFO L587 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2021-10-21 19:32:47,537 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-21 19:32:47,537 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2021-10-21 19:32:47,537 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-21 19:32:47,537 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:32:47,537 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:32:47,538 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-21 19:32:47,538 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 2, 1] [2021-10-21 19:32:47,538 INFO L791 eck$LassoCheckResult]: Stem: 308#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~j~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~N~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~i~0 := main_~N~0; 309#L19-2 assume !!(main_~i~0 > 0); 310#L19 [2021-10-21 19:32:47,538 INFO L793 eck$LassoCheckResult]: Loop: 310#L19 assume !(main_~j~0 > 0);main_~j~0 := main_~N~0;main_~i~0 := main_~i~0 - 1; 304#L19-2 assume !!(main_~i~0 > 0); 305#L19 assume main_~j~0 > 0;main_~j~0 := main_~j~0 - 1; 306#L19-2 assume !!(main_~i~0 > 0); 307#L19 assume main_~j~0 > 0;main_~j~0 := main_~j~0 - 1; 311#L19-2 assume !!(main_~i~0 > 0); 310#L19 [2021-10-21 19:32:47,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:47,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-10-21 19:32:47,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:47,539 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547225315] [2021-10-21 19:32:47,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:47,540 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:47,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:47,545 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:32:47,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:47,548 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:32:47,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:47,549 INFO L82 PathProgramCache]: Analyzing trace with hash 1326573462, now seen corresponding path program 1 times [2021-10-21 19:32:47,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:47,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936218496] [2021-10-21 19:32:47,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:47,550 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:47,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:47,557 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:32:47,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:47,563 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:32:47,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:47,564 INFO L82 PathProgramCache]: Analyzing trace with hash 659527871, now seen corresponding path program 2 times [2021-10-21 19:32:47,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:47,564 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056945247] [2021-10-21 19:32:47,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:47,565 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:47,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:47,572 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:32:47,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:47,580 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:32:47,642 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:32:47,643 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:32:47,643 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:32:47,643 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:32:47,643 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 19:32:47,643 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:47,643 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:32:47,643 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:32:47,643 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration4_Loop [2021-10-21 19:32:47,644 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:32:47,644 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:32:47,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:47,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:47,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:47,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:47,741 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:32:47,748 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 19:32:47,748 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:47,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:47,749 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:47,753 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:32:47,753 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:32:47,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-21 19:32:47,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:47,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:47,859 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:47,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:47,861 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:47,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-21 19:32:47,863 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 19:32:47,863 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:32:47,992 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 19:32:47,996 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-10-21 19:32:47,997 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:32:47,997 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:32:47,997 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:32:47,997 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:32:47,997 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:32:47,997 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:47,997 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:32:47,997 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:32:47,997 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration4_Loop [2021-10-21 19:32:47,997 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:32:47,997 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:32:47,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:48,008 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:48,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:48,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:48,085 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:32:48,085 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:32:48,085 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:48,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:48,086 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:48,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-21 19:32:48,092 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 [2021-10-21 19:32:48,102 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:32:48,103 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:32:48,103 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:32:48,103 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:32:48,103 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:32:48,104 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:32:48,104 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:32:48,113 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:32:48,117 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 19:32:48,117 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-21 19:32:48,117 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:48,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:48,118 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:48,126 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:32:48,127 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 19:32:48,127 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:32:48,127 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-10-21 19:32:48,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-21 19:32:48,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:48,173 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 19:32:48,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:48,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:32:48,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:32:48,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:32:48,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:32:48,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:32:48,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:32:48,307 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 19:32:48,307 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-21 19:32:48,308 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 3 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:32:48,335 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 3. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 19 states and 24 transitions. Complement of second has 6 states. [2021-10-21 19:32:48,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-21 19:32:48,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:32:48,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2021-10-21 19:32:48,337 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 6 letters. [2021-10-21 19:32:48,338 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:32:48,338 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 8 letters. Loop has 6 letters. [2021-10-21 19:32:48,339 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:32:48,339 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 12 letters. [2021-10-21 19:32:48,339 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:32:48,339 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 24 transitions. [2021-10-21 19:32:48,343 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:32:48,343 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 0 states and 0 transitions. [2021-10-21 19:32:48,343 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 19:32:48,343 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 19:32:48,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 19:32:48,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:32:48,344 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:32:48,344 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:32:48,344 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:32:48,344 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-21 19:32:48,344 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:32:48,345 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:32:48,345 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-21 19:32:48,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:32:48 BoogieIcfgContainer [2021-10-21 19:32:48,354 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:32:48,355 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:32:48,355 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:32:48,355 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:32:48,356 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:32:44" (3/4) ... [2021-10-21 19:32:48,359 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 19:32:48,359 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:32:48,362 INFO L168 Benchmark]: Toolchain (without parser) took 4929.78 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 61.7 MB in the beginning and 72.0 MB in the end (delta: -10.3 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:32:48,363 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 92.3 MB. Free memory is still 60.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:32:48,364 INFO L168 Benchmark]: CACSL2BoogieTranslator took 219.56 ms. Allocated memory is still 92.3 MB. Free memory was 61.3 MB in the beginning and 52.9 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:32:48,374 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.77 ms. Allocated memory is still 92.3 MB. Free memory was 52.9 MB in the beginning and 51.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:32:48,376 INFO L168 Benchmark]: Boogie Preprocessor took 20.99 ms. Allocated memory is still 92.3 MB. Free memory was 51.6 MB in the beginning and 50.7 MB in the end (delta: 859.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:32:48,376 INFO L168 Benchmark]: RCFGBuilder took 310.47 ms. Allocated memory is still 92.3 MB. Free memory was 50.7 MB in the beginning and 43.0 MB in the end (delta: 7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:32:48,377 INFO L168 Benchmark]: BuchiAutomizer took 4313.37 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 42.9 MB in the beginning and 72.0 MB in the end (delta: -29.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:32:48,377 INFO L168 Benchmark]: Witness Printer took 4.86 ms. Allocated memory is still 111.1 MB. Free memory is still 72.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:32:48,382 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 92.3 MB. Free memory is still 60.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 219.56 ms. Allocated memory is still 92.3 MB. Free memory was 61.3 MB in the beginning and 52.9 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.77 ms. Allocated memory is still 92.3 MB. Free memory was 52.9 MB in the beginning and 51.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.99 ms. Allocated memory is still 92.3 MB. Free memory was 51.6 MB in the beginning and 50.7 MB in the end (delta: 859.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 310.47 ms. Allocated memory is still 92.3 MB. Free memory was 50.7 MB in the beginning and 43.0 MB in the end (delta: 7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4313.37 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 42.9 MB in the beginning and 72.0 MB in the end (delta: -29.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.86 ms. Allocated memory is still 111.1 MB. Free memory is still 72.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (1 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function j and consists of 4 locations. One deterministic module has affine ranking function j and consists of 3 locations. One deterministic module has affine ranking function i and consists of 4 locations. One nondeterministic module has affine ranking function j and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.2s and 5 iterations. TraceHistogramMax:3. Analysis of lassos took 3.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 17.6ms AutomataMinimizationTime, 4 MinimizatonAttempts, 13 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 6/6 HoareTripleCheckerStatistics: 31 SDtfs, 31 SDslu, 10 SDs, 0 SdLazy, 49 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 49.6ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax182 hnf98 lsp39 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq156 hnf93 smp100 dnf100 smp100 tf112 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 48ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-21 19:32:48,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:48,649 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-10-21 19:32:48,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6523fe5c-72ea-47f7-80fd-88d69017a036/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...