./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-lit/mcmillan2006.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/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_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-lit/mcmillan2006.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/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 32bit --witnessprinter.graph.data.programhash 45cd9f1eda35cecb580d3b7fe5199506be9e5041f2297c1c3e22e0a862fa68be .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 20:23:39,794 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:23:39,796 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:23:39,859 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:23:39,859 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:23:39,860 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:23:39,869 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:23:39,873 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:23:39,875 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:23:39,880 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:23:39,881 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:23:39,883 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:23:39,884 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:23:39,886 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:23:39,890 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:23:39,892 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:23:39,893 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:23:39,894 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:23:39,899 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:23:39,904 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:23:39,905 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:23:39,909 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:23:39,912 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:23:39,913 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:23:39,918 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:23:39,918 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:23:39,919 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:23:39,920 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:23:39,921 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:23:39,922 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:23:39,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:23:39,923 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:23:39,925 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:23:39,926 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:23:39,927 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:23:39,927 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:23:39,928 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:23:39,928 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:23:39,928 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:23:39,929 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:23:39,929 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:23:39,930 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 20:23:39,978 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:23:39,978 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:23:39,979 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:23:39,979 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:23:39,980 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:23:39,980 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:23:39,980 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:23:39,981 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 20:23:39,981 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 20:23:39,981 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 20:23:39,982 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 20:23:39,982 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 20:23:39,982 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 20:23:39,983 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:23:39,983 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:23:39,983 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 20:23:39,983 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:23:39,983 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:23:39,983 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:23:39,984 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 20:23:39,984 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 20:23:39,984 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 20:23:39,984 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:23:39,984 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:23:39,985 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 20:23:39,985 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:23:39,986 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 20:23:39,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:23:39,986 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:23:39,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:23:39,987 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:23:39,987 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:23:39,988 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 20:23:39,988 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_228e89a8-05eb-47e9-a143-79585e1535f6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45cd9f1eda35cecb580d3b7fe5199506be9e5041f2297c1c3e22e0a862fa68be [2021-10-21 20:23:40,233 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:23:40,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:23:40,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:23:40,266 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:23:40,267 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:23:40,268 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/loop-lit/mcmillan2006.i [2021-10-21 20:23:40,337 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/data/091fc227c/2583cfed269545308666840286f3796c/FLAGe5748e747 [2021-10-21 20:23:40,787 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:23:40,787 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/sv-benchmarks/c/loop-lit/mcmillan2006.i [2021-10-21 20:23:40,793 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/data/091fc227c/2583cfed269545308666840286f3796c/FLAGe5748e747 [2021-10-21 20:23:41,205 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/data/091fc227c/2583cfed269545308666840286f3796c [2021-10-21 20:23:41,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:23:41,210 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:23:41,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:23:41,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:23:41,231 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:23:41,232 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:23:41" (1/1) ... [2021-10-21 20:23:41,233 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b0f1aa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:23:41, skipping insertion in model container [2021-10-21 20:23:41,233 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:23:41" (1/1) ... [2021-10-21 20:23:41,240 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:23:41,254 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:23:41,456 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/sv-benchmarks/c/loop-lit/mcmillan2006.i[1009,1022] [2021-10-21 20:23:41,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:23:41,474 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:23:41,487 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/sv-benchmarks/c/loop-lit/mcmillan2006.i[1009,1022] [2021-10-21 20:23:41,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:23:41,504 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:23:41,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:23:41 WrapperNode [2021-10-21 20:23:41,505 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:23:41,506 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:23:41,506 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:23:41,506 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:23:41,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:23:41" (1/1) ... [2021-10-21 20:23:41,520 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:23:41" (1/1) ... [2021-10-21 20:23:41,537 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:23:41,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:23:41,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:23:41,538 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:23:41,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:23:41" (1/1) ... [2021-10-21 20:23:41,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:23:41" (1/1) ... [2021-10-21 20:23:41,547 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:23:41" (1/1) ... [2021-10-21 20:23:41,547 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:23:41" (1/1) ... [2021-10-21 20:23:41,552 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:23:41" (1/1) ... [2021-10-21 20:23:41,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:23:41" (1/1) ... [2021-10-21 20:23:41,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:23:41" (1/1) ... [2021-10-21 20:23:41,558 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:23:41,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:23:41,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:23:41,559 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:23:41,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:23:41" (1/1) ... [2021-10-21 20:23:41,567 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:23:41,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:23:41,589 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:23:41,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 20:23:41,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 20:23:41,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:23:41,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-21 20:23:41,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-21 20:23:41,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:23:41,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:23:41,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-21 20:23:41,814 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:23:41,814 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-21 20:23:41,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:23:41 BoogieIcfgContainer [2021-10-21 20:23:41,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:23:41,817 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 20:23:41,817 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 20:23:41,821 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 20:23:41,821 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:23:41,822 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 08:23:41" (1/3) ... [2021-10-21 20:23:41,823 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@814ff1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:23:41, skipping insertion in model container [2021-10-21 20:23:41,823 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:23:41,823 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:23:41" (2/3) ... [2021-10-21 20:23:41,824 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@814ff1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:23:41, skipping insertion in model container [2021-10-21 20:23:41,824 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:23:41,824 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:23:41" (3/3) ... [2021-10-21 20:23:41,825 INFO L389 chiAutomizerObserver]: Analyzing ICFG mcmillan2006.i [2021-10-21 20:23:41,867 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 20:23:41,867 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 20:23:41,867 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 20:23:41,868 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 20:23:41,868 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 20:23:41,868 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 20:23:41,868 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 20:23:41,868 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 20:23:41,880 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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 20:23:41,894 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-21 20:23:41,895 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:23:41,895 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:23:41,900 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-21 20:23:41,900 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:23:41,900 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 20:23:41,901 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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 20:23:41,902 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-21 20:23:41,902 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:23:41,903 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:23:41,903 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-21 20:23:41,903 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:23:41,910 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 7#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~post5, main_~i~0, main_#t~mem7, main_#t~post6, main_~i~1, main_~n~0, main_~x~0.base, main_~x~0.offset;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 10#L28true assume !!(0 <= main_~n~0 && main_~n~0 <= 1000);call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~x~0.base, main_~x~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;havoc main_#t~malloc4.base, main_#t~malloc4.offset;main_~i~0 := 0; 15#L30-3true [2021-10-21 20:23:41,910 INFO L793 eck$LassoCheckResult]: Loop: 15#L30-3true assume !!(main_~i~0 < main_~n~0);call write~int(0, main_~x~0.base, main_~x~0.offset + 4 * main_~i~0, 4); 5#L30-2true main_#t~post5 := main_~i~0;main_~i~0 := 1 + main_#t~post5;havoc main_#t~post5; 15#L30-3true [2021-10-21 20:23:41,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:23:41,915 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2021-10-21 20:23:41,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:23:41,925 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372455902] [2021-10-21 20:23:41,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:23:41,926 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:23:42,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:23:42,033 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:23:42,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:23:42,090 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:23:42,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:23:42,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1443, now seen corresponding path program 1 times [2021-10-21 20:23:42,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:23:42,099 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256640054] [2021-10-21 20:23:42,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:23:42,100 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:23:42,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:23:42,110 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:23:42,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:23:42,120 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:23:42,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:23:42,122 INFO L82 PathProgramCache]: Analyzing trace with hash 28695942, now seen corresponding path program 1 times [2021-10-21 20:23:42,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:23:42,122 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522487676] [2021-10-21 20:23:42,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:23:42,123 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:23:42,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:23:42,146 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:23:42,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:23:42,172 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:23:42,784 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:23:42,785 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:23:42,785 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:23:42,785 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:23:42,785 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:23:42,785 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:23:42,786 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:23:42,786 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:23:42,786 INFO L133 ssoRankerPreferences]: Filename of dumped script: mcmillan2006.i_Iteration1_Lasso [2021-10-21 20:23:42,786 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:23:42,786 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:23:42,804 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 20:23:42,809 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 20:23:42,811 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 20:23:42,814 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 20:23:42,816 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 20:23:42,818 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 20:23:42,990 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 20:23:42,993 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 20:23:42,996 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 20:23:42,999 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 20:23:43,001 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 20:23:43,004 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 20:23:43,271 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:23:43,276 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:23:43,277 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:23:43,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:23:43,285 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:23:43,289 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 20:23:43,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 20:23:43,297 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:23:43,298 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:23:43,298 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:23:43,298 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:23:43,298 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:23:43,302 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:23:43,302 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:23:43,311 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:23:43,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-10-21 20:23:43,341 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:23:43,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:23:43,343 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:23:43,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 20:23:43,346 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 20:23:43,355 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:23:43,355 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:23:43,356 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:23:43,356 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:23:43,356 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:23:43,357 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:23:43,357 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:23:43,373 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:23:43,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-21 20:23:43,406 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:23:43,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:23:43,407 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:23:43,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 20:23:43,411 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 20:23:43,418 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:23:43,418 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:23:43,419 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:23:43,419 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:23:43,419 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:23:43,420 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:23:43,420 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:23:43,441 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:23:43,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-10-21 20:23:43,466 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:23:43,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:23:43,477 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:23:43,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 20:23:43,479 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 20:23:43,489 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:23:43,489 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:23:43,489 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:23:43,489 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:23:43,489 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:23:43,490 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:23:43,490 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:23:43,513 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:23:43,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-21 20:23:43,538 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:23:43,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:23:43,542 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:23:43,544 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 20:23:43,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-21 20:23:43,551 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:23:43,551 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:23:43,551 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:23:43,551 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:23:43,551 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:23:43,552 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:23:43,552 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:23:43,555 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:23:43,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-21 20:23:43,576 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:23:43,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:23:43,577 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:23:43,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-21 20:23:43,581 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 20:23:43,588 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:23:43,589 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-10-21 20:23:43,589 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:23:43,589 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:23:43,596 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-10-21 20:23:43,596 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:23:43,621 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:23:43,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-21 20:23:43,656 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:23:43,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:23:43,657 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:23:43,666 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 20:23:43,675 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:23:43,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:23:43,675 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:23:43,675 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:23:43,678 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:23:43,679 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:23:43,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-21 20:23:43,697 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:23:43,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-21 20:23:43,733 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:23:43,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:23:43,734 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:23:43,740 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 20:23:43,748 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:23:43,749 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:23:43,749 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:23:43,749 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:23:43,752 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:23:43,752 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:23:43,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-21 20:23:43,777 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:23:43,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-21 20:23:43,812 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:23:43,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:23:43,813 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:23:43,819 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 20:23:43,828 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:23:43,828 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:23:43,828 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:23:43,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:23:43,829 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:23:43,829 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:23:43,830 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:23:43,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-21 20:23:43,849 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:23:43,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-21 20:23:43,884 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:23:43,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:23:43,890 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:23:43,899 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 20:23:43,907 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:23:43,908 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:23:43,908 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:23:43,908 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:23:43,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-21 20:23:43,912 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:23:43,912 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:23:43,925 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:23:43,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-21 20:23:43,962 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:23:43,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:23:43,964 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:23:43,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-21 20:23:43,970 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 20:23:43,979 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:23:43,980 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:23:43,980 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:23:43,980 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:23:43,987 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:23:43,987 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:23:43,995 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:23:44,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-21 20:23:44,024 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:23:44,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:23:44,025 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:23:44,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-21 20:23:44,033 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 20:23:44,042 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:23:44,043 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:23:44,043 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:23:44,043 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:23:44,045 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:23:44,045 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:23:44,065 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:23:44,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-21 20:23:44,104 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:23:44,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:23:44,105 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:23:44,111 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 20:23:44,120 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:23:44,120 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:23:44,120 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:23:44,120 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:23:44,127 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:23:44,127 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:23:44,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-21 20:23:44,145 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:23:44,177 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-10-21 20:23:44,177 INFO L444 ModelExtractionUtils]: 9 out of 19 variables were initially zero. Simplification set additionally 7 variables to zero. [2021-10-21 20:23:44,178 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:23:44,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:23:44,190 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:23:44,233 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:23:44,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-21 20:23:44,251 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 20:23:44,251 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:23:44,252 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-10-21 20:23:44,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-21 20:23:44,314 INFO L297 tatePredicateManager]: 7 out of 7 supporting invariants were superfluous and have been removed [2021-10-21 20:23:44,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:23:44,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:23:44,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:23:44,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:23:44,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:23:44,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:23:44,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:23:44,430 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 20:23:44,446 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 20:23:44,448 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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 1.6666666666666667) 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 20:23:44,505 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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 1.6666666666666667) 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 40 states and 51 transitions. Complement of second has 7 states. [2021-10-21 20:23:44,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-21 20:23:44,507 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 20:23:44,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 34 transitions. [2021-10-21 20:23:44,509 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-21 20:23:44,510 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:23:44,510 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-21 20:23:44,511 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:23:44,511 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 3 letters. Loop has 4 letters. [2021-10-21 20:23:44,511 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:23:44,512 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 51 transitions. [2021-10-21 20:23:44,517 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-21 20:23:44,521 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 11 states and 13 transitions. [2021-10-21 20:23:44,522 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-10-21 20:23:44,522 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-10-21 20:23:44,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 13 transitions. [2021-10-21 20:23:44,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:23:44,523 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-10-21 20:23:44,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 13 transitions. [2021-10-21 20:23:44,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-21 20:23:44,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 10 states have internal predecessors, (13), 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 20:23:44,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2021-10-21 20:23:44,548 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-10-21 20:23:44,548 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-10-21 20:23:44,548 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 20:23:44,548 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 13 transitions. [2021-10-21 20:23:44,549 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-21 20:23:44,549 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:23:44,549 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:23:44,550 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-21 20:23:44,550 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-21 20:23:44,550 INFO L791 eck$LassoCheckResult]: Stem: 129#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 130#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~post5, main_~i~0, main_#t~mem7, main_#t~post6, main_~i~1, main_~n~0, main_~x~0.base, main_~x~0.offset;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 131#L28 assume !!(0 <= main_~n~0 && main_~n~0 <= 1000);call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~x~0.base, main_~x~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;havoc main_#t~malloc4.base, main_#t~malloc4.offset;main_~i~0 := 0; 132#L30-3 assume !(main_~i~0 < main_~n~0); 135#L30-4 main_~i~1 := 0; 133#L31-3 [2021-10-21 20:23:44,551 INFO L793 eck$LassoCheckResult]: Loop: 133#L31-3 assume !!(main_~i~1 < main_~n~0);call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset + 4 * main_~i~1, 4);__VERIFIER_assert_#in~cond := (if 0 == main_#t~mem7 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 134#L19 assume !(0 == __VERIFIER_assert_~cond); 125#L19-2 havoc main_#t~mem7; 126#L31-2 main_#t~post6 := main_~i~1;main_~i~1 := 1 + main_#t~post6;havoc main_#t~post6; 133#L31-3 [2021-10-21 20:23:44,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:23:44,552 INFO L82 PathProgramCache]: Analyzing trace with hash 28695884, now seen corresponding path program 1 times [2021-10-21 20:23:44,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:23:44,553 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112425885] [2021-10-21 20:23:44,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:23:44,553 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:23:44,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:23:44,586 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:23:44,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:23:44,602 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:23:44,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:23:44,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1823306, now seen corresponding path program 1 times [2021-10-21 20:23:44,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:23:44,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64426937] [2021-10-21 20:23:44,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:23:44,604 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:23:44,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:23:44,613 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:23:44,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:23:44,622 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:23:44,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:23:44,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1304171029, now seen corresponding path program 1 times [2021-10-21 20:23:44,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:23:44,623 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450758101] [2021-10-21 20:23:44,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:23:44,624 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:23:44,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:23:44,686 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 20:23:44,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:23:44,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450758101] [2021-10-21 20:23:44,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450758101] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:23:44,687 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:23:44,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 20:23:44,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860728050] [2021-10-21 20:23:44,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:23:44,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 20:23:44,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-21 20:23:44,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:23:44,807 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 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 20:23:44,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:23:44,851 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2021-10-21 20:23:44,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 20:23:44,852 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 15 transitions. [2021-10-21 20:23:44,854 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-21 20:23:44,858 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 12 states and 13 transitions. [2021-10-21 20:23:44,859 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-10-21 20:23:44,859 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-10-21 20:23:44,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 13 transitions. [2021-10-21 20:23:44,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:23:44,859 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2021-10-21 20:23:44,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 13 transitions. [2021-10-21 20:23:44,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2021-10-21 20:23:44,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 states have internal predecessors, (12), 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 20:23:44,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2021-10-21 20:23:44,866 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-10-21 20:23:44,866 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-10-21 20:23:44,866 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 20:23:44,866 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 12 transitions. [2021-10-21 20:23:44,867 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-21 20:23:44,867 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:23:44,867 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:23:44,868 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:23:44,868 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-21 20:23:44,868 INFO L791 eck$LassoCheckResult]: Stem: 168#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 169#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~post5, main_~i~0, main_#t~mem7, main_#t~post6, main_~i~1, main_~n~0, main_~x~0.base, main_~x~0.offset;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 170#L28 assume !!(0 <= main_~n~0 && main_~n~0 <= 1000);call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~x~0.base, main_~x~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;havoc main_#t~malloc4.base, main_#t~malloc4.offset;main_~i~0 := 0; 171#L30-3 assume !!(main_~i~0 < main_~n~0);call write~int(0, main_~x~0.base, main_~x~0.offset + 4 * main_~i~0, 4); 166#L30-2 main_#t~post5 := main_~i~0;main_~i~0 := 1 + main_#t~post5;havoc main_#t~post5; 167#L30-3 assume !(main_~i~0 < main_~n~0); 174#L30-4 main_~i~1 := 0; 173#L31-3 [2021-10-21 20:23:44,868 INFO L793 eck$LassoCheckResult]: Loop: 173#L31-3 assume !!(main_~i~1 < main_~n~0);call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset + 4 * main_~i~1, 4);__VERIFIER_assert_#in~cond := (if 0 == main_#t~mem7 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 172#L19 assume !(0 == __VERIFIER_assert_~cond); 164#L19-2 havoc main_#t~mem7; 165#L31-2 main_#t~post6 := main_~i~1;main_~i~1 := 1 + main_#t~post6;havoc main_#t~post6; 173#L31-3 [2021-10-21 20:23:44,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:23:44,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1806996910, now seen corresponding path program 1 times [2021-10-21 20:23:44,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:23:44,869 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141667043] [2021-10-21 20:23:44,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:23:44,870 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:23:44,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:23:44,901 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:23:44,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:23:44,939 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:23:44,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:23:44,942 INFO L82 PathProgramCache]: Analyzing trace with hash 1823306, now seen corresponding path program 2 times [2021-10-21 20:23:44,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:23:44,943 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807589192] [2021-10-21 20:23:44,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:23:44,943 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:23:44,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:23:44,953 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:23:44,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:23:44,969 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:23:44,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:23:44,969 INFO L82 PathProgramCache]: Analyzing trace with hash -1358706313, now seen corresponding path program 1 times [2021-10-21 20:23:44,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:23:44,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749816350] [2021-10-21 20:23:44,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:23:44,970 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:23:44,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:23:44,984 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:23:44,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:23:45,002 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:23:45,436 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:23:45,436 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:23:45,436 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:23:45,436 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:23:45,436 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:23:45,437 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:23:45,437 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:23:45,437 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:23:45,437 INFO L133 ssoRankerPreferences]: Filename of dumped script: mcmillan2006.i_Iteration3_Lasso [2021-10-21 20:23:45,437 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:23:45,437 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:23:45,440 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 20:23:45,443 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 20:23:45,445 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 20:23:45,447 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 20:23:45,449 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 20:23:45,451 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 20:23:45,453 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 20:23:45,618 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 20:23:45,620 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 20:23:45,625 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 20:23:45,628 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 20:23:45,630 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 20:23:45,899 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:23:45,899 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:23:45,899 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:23:45,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:23:45,905 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:23:45,912 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 20:23:45,920 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:23:45,921 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:23:45,921 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:23:45,921 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:23:45,921 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:23:45,921 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:23:45,922 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:23:45,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-21 20:23:45,929 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:23:45,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-21 20:23:45,958 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:23:45,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:23:45,959 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:23:45,965 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 20:23:45,974 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:23:45,974 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:23:45,974 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:23:45,974 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:23:45,974 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:23:45,975 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:23:45,975 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:23:45,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-21 20:23:45,997 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:23:46,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-21 20:23:46,033 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:23:46,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:23:46,035 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:23:46,045 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 20:23:46,054 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:23:46,055 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:23:46,055 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:23:46,055 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:23:46,055 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:23:46,055 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:23:46,055 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:23:46,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-21 20:23:46,069 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:23:46,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-21 20:23:46,103 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:23:46,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:23:46,105 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:23:46,111 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 20:23:46,119 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:23:46,119 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:23:46,120 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:23:46,120 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:23:46,120 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:23:46,122 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:23:46,122 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:23:46,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-21 20:23:46,137 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:23:46,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-21 20:23:46,172 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:23:46,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:23:46,173 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:23:46,184 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 20:23:46,193 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:23:46,193 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:23:46,194 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:23:46,194 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:23:46,194 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:23:46,194 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:23:46,194 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:23:46,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-21 20:23:46,205 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:23:46,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-21 20:23:46,239 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:23:46,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:23:46,240 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:23:46,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-21 20:23:46,249 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 20:23:46,262 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:23:46,262 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:23:46,262 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:23:46,262 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:23:46,262 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:23:46,263 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:23:46,263 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:23:46,264 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:23:46,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-21 20:23:46,283 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:23:46,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:23:46,284 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:23:46,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-21 20:23:46,285 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 20:23:46,292 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:23:46,292 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:23:46,292 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:23:46,292 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:23:46,295 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:23:46,295 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:23:46,322 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:23:46,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-21 20:23:46,358 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:23:46,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:23:46,359 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:23:46,361 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 20:23:46,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:23:46,370 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:23:46,370 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:23:46,370 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:23:46,372 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:23:46,372 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:23:46,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-21 20:23:46,397 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:23:46,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-21 20:23:46,428 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:23:46,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:23:46,433 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:23:46,435 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 20:23:46,444 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:23:46,445 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-10-21 20:23:46,445 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:23:46,445 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:23:46,449 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-10-21 20:23:46,449 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:23:46,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-21 20:23:46,465 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:23:46,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-21 20:23:46,499 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:23:46,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:23:46,502 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:23:46,504 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 20:23:46,513 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:23:46,513 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:23:46,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:23:46,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:23:46,513 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:23:46,514 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:23:46,514 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:23:46,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-21 20:23:46,529 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:23:46,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-21 20:23:46,566 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:23:46,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:23:46,567 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:23:46,569 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 20:23:46,578 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:23:46,578 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:23:46,578 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:23:46,579 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:23:46,586 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:23:46,586 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:23:46,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-21 20:23:46,601 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:23:46,633 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2021-10-21 20:23:46,633 INFO L444 ModelExtractionUtils]: 7 out of 22 variables were initially zero. Simplification set additionally 12 variables to zero. [2021-10-21 20:23:46,633 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:23:46,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:23:46,634 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:23:46,636 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:23:46,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-21 20:23:46,662 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 20:23:46,662 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:23:46,663 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~1) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~1 Supporting invariants [] [2021-10-21 20:23:46,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-21 20:23:46,721 INFO L297 tatePredicateManager]: 9 out of 9 supporting invariants were superfluous and have been removed [2021-10-21 20:23:46,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:23:46,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:23:46,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:23:46,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:23:46,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:23:46,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:23:46,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:23:46,803 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 20:23:46,804 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 20:23:46,804 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 12 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 20:23:46,812 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 12 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 17 transitions. Complement of second has 4 states. [2021-10-21 20:23:46,812 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 20:23:46,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 20:23:46,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2021-10-21 20:23:46,813 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 7 letters. Loop has 4 letters. [2021-10-21 20:23:46,814 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:23:46,814 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 4 letters. [2021-10-21 20:23:46,814 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:23:46,814 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 7 letters. Loop has 8 letters. [2021-10-21 20:23:46,814 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:23:46,814 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 17 transitions. [2021-10-21 20:23:46,815 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 20:23:46,815 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2021-10-21 20:23:46,815 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 20:23:46,816 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 20:23:46,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 20:23:46,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:23:46,816 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:23:46,816 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:23:46,816 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:23:46,816 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-21 20:23:46,816 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-21 20:23:46,817 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 20:23:46,817 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-21 20:23:46,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 08:23:46 BoogieIcfgContainer [2021-10-21 20:23:46,822 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 20:23:46,822 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:23:46,823 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:23:46,823 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:23:46,823 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:23:41" (3/4) ... [2021-10-21 20:23:46,826 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 20:23:46,826 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:23:46,827 INFO L168 Benchmark]: Toolchain (without parser) took 5616.05 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 76.2 MB in the beginning and 63.0 MB in the end (delta: 13.3 MB). Peak memory consumption was 35.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:23:46,828 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 81.8 MB. Free memory was 40.0 MB in the beginning and 39.9 MB in the end (delta: 36.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:23:46,828 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.72 ms. Allocated memory is still 109.1 MB. Free memory was 76.0 MB in the beginning and 84.6 MB in the end (delta: -8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:23:46,829 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.87 ms. Allocated memory is still 109.1 MB. Free memory was 84.6 MB in the beginning and 83.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:23:46,829 INFO L168 Benchmark]: Boogie Preprocessor took 21.12 ms. Allocated memory is still 109.1 MB. Free memory was 83.2 MB in the beginning and 82.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:23:46,830 INFO L168 Benchmark]: RCFGBuilder took 256.85 ms. Allocated memory is still 109.1 MB. Free memory was 82.0 MB in the beginning and 72.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:23:46,830 INFO L168 Benchmark]: BuchiAutomizer took 5005.24 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 72.4 MB in the beginning and 63.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 34.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:23:46,831 INFO L168 Benchmark]: Witness Printer took 3.51 ms. Allocated memory is still 132.1 MB. Free memory is still 63.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:23:46,833 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 81.8 MB. Free memory was 40.0 MB in the beginning and 39.9 MB in the end (delta: 36.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 292.72 ms. Allocated memory is still 109.1 MB. Free memory was 76.0 MB in the beginning and 84.6 MB in the end (delta: -8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.87 ms. Allocated memory is still 109.1 MB. Free memory was 84.6 MB in the beginning and 83.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.12 ms. Allocated memory is still 109.1 MB. Free memory was 83.2 MB in the beginning and 82.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 256.85 ms. Allocated memory is still 109.1 MB. Free memory was 82.0 MB in the beginning and 72.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 5005.24 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 72.4 MB in the beginning and 63.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 34.1 MB. Max. memory is 16.1 GB. * Witness Printer took 3.51 ms. Allocated memory is still 132.1 MB. Free memory is still 63.0 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function n + -1 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * i + n and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 4.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 18.3ms AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 31 SDtfs, 29 SDslu, 32 SDs, 0 SdLazy, 36 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 31.7ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital177 mio100 ax100 hnf99 lsp93 ukn64 mio100 lsp55 div100 bol100 ite100 ukn100 eq163 hnf94 smp100 dnf100 smp100 tf100 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 44ms VariablesStem: 4 VariablesLoop: 0 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-21 20:23:46,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-21 20:23:47,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228e89a8-05eb-47e9-a143-79585e1535f6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...