./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-lit/cggmp2005b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-lit/cggmp2005b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD --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 5a85ef4e6caed20a9aa6e00fcf3a476ebe3f071202fc083a4545018fb19b4c9c .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:18:11,874 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:18:11,878 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:18:11,940 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:18:11,941 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:18:11,943 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:18:11,945 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:18:11,949 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:18:11,952 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:18:11,954 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:18:11,955 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:18:11,957 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:18:11,958 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:18:11,960 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:18:11,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:18:11,965 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:18:11,966 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:18:11,968 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:18:11,972 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:18:11,975 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:18:11,978 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:18:11,981 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:18:11,983 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:18:11,984 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:18:11,989 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:18:11,997 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:18:11,998 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:18:11,999 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:18:12,000 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:18:12,002 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:18:12,004 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:18:12,005 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:18:12,007 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:18:12,008 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:18:12,011 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:18:12,013 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:18:12,015 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:18:12,015 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:18:12,016 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:18:12,017 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:18:12,018 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:18:12,019 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 23:18:12,075 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:18:12,075 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:18:12,076 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:18:12,077 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:18:12,079 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:18:12,079 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:18:12,080 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:18:12,080 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:18:12,080 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:18:12,081 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:18:12,082 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:18:12,082 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:18:12,083 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:18:12,083 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:18:12,083 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:18:12,083 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:18:12,084 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:18:12,084 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:18:12,084 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:18:12,084 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:18:12,085 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:18:12,085 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:18:12,085 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:18:12,086 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:18:12,086 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:18:12,086 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:18:12,086 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:18:12,087 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:18:12,087 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:18:12,087 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:18:12,088 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:18:12,088 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:18:12,090 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:18:12,090 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_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a85ef4e6caed20a9aa6e00fcf3a476ebe3f071202fc083a4545018fb19b4c9c [2021-10-28 23:18:12,418 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:18:12,447 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:18:12,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:18:12,452 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:18:12,453 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:18:12,454 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/loop-lit/cggmp2005b.i [2021-10-28 23:18:12,542 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/data/5d72ad838/e376d7a383694ad58c47a8ed608ba65f/FLAG464b16a86 [2021-10-28 23:18:13,063 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:18:13,064 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/sv-benchmarks/c/loop-lit/cggmp2005b.i [2021-10-28 23:18:13,071 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/data/5d72ad838/e376d7a383694ad58c47a8ed608ba65f/FLAG464b16a86 [2021-10-28 23:18:13,431 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/data/5d72ad838/e376d7a383694ad58c47a8ed608ba65f [2021-10-28 23:18:13,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:18:13,436 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:18:13,461 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:18:13,461 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:18:13,468 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:18:13,469 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:18:13" (1/1) ... [2021-10-28 23:18:13,470 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53bf8f9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:18:13, skipping insertion in model container [2021-10-28 23:18:13,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:18:13" (1/1) ... [2021-10-28 23:18:13,480 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:18:13,499 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:18:13,710 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_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/sv-benchmarks/c/loop-lit/cggmp2005b.i[895,908] [2021-10-28 23:18:13,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:18:13,748 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:18:13,775 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_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/sv-benchmarks/c/loop-lit/cggmp2005b.i[895,908] [2021-10-28 23:18:13,787 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:18:13,811 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:18:13,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:18:13 WrapperNode [2021-10-28 23:18:13,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:18:13,815 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:18:13,816 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:18:13,816 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:18:13,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:18:13" (1/1) ... [2021-10-28 23:18:13,841 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:18:13" (1/1) ... [2021-10-28 23:18:13,877 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:18:13,879 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:18:13,879 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:18:13,879 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:18:13,890 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:18:13" (1/1) ... [2021-10-28 23:18:13,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:18:13" (1/1) ... [2021-10-28 23:18:13,906 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:18:13" (1/1) ... [2021-10-28 23:18:13,907 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:18:13" (1/1) ... [2021-10-28 23:18:13,911 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:18:13" (1/1) ... [2021-10-28 23:18:13,920 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:18:13" (1/1) ... [2021-10-28 23:18:13,924 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:18:13" (1/1) ... [2021-10-28 23:18:13,934 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:18:13,935 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:18:13,935 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:18:13,935 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:18:13,937 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:18:13" (1/1) ... [2021-10-28 23:18:13,948 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:13,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:13,979 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:14,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:18:14,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:18:14,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:18:14,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:18:14,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:18:14,268 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:18:14,268 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-28 23:18:14,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:18:14 BoogieIcfgContainer [2021-10-28 23:18:14,270 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:18:14,272 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:18:14,272 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:18:14,276 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:18:14,282 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:18:14,290 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:18:13" (1/3) ... [2021-10-28 23:18:14,292 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3990fab1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:18:14, skipping insertion in model container [2021-10-28 23:18:14,292 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:18:14,292 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:18:13" (2/3) ... [2021-10-28 23:18:14,293 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3990fab1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:18:14, skipping insertion in model container [2021-10-28 23:18:14,293 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:18:14,293 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:18:14" (3/3) ... [2021-10-28 23:18:14,295 INFO L389 chiAutomizerObserver]: Analyzing ICFG cggmp2005b.i [2021-10-28 23:18:14,383 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:18:14,383 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:18:14,384 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:18:14,384 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:18:14,384 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:18:14,384 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:18:14,384 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:18:14,384 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:18:14,418 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 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) [2021-10-28 23:18:14,441 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 23:18:14,441 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:18:14,442 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:18:14,449 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 23:18:14,449 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 23:18:14,449 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:18:14,450 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 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) [2021-10-28 23:18:14,452 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 23:18:14,452 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:18:14,453 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:18:14,453 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 23:18:14,453 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 23:18:14,461 INFO L791 eck$LassoCheckResult]: Stem: 4#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); 5#L-1true havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 6#L35-3true [2021-10-28 23:18:14,462 INFO L793 eck$LassoCheckResult]: Loop: 6#L35-3true assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 11#L31-2true assume !(main_~j~0 < 20); 7#L31-3true main_~k~0 := 4; 10#L35-2true assume !true; 6#L35-3true [2021-10-28 23:18:14,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:14,469 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-28 23:18:14,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:18:14,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117709901] [2021-10-28 23:18:14,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:14,482 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:18:14,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:18:14,591 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:18:14,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:18:14,633 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:18:14,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:14,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1269299, now seen corresponding path program 1 times [2021-10-28 23:18:14,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:18:14,638 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721011696] [2021-10-28 23:18:14,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:14,638 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:18:14,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:14,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:18:14,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:18:14,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721011696] [2021-10-28 23:18:14,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721011696] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:18:14,704 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:18:14,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-28 23:18:14,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140975507] [2021-10-28 23:18:14,711 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:18:14,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:18:14,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:18:14,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:18:14,734 INFO L87 Difference]: Start difference. First operand has 13 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 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 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-10-28 23:18:14,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:18:14,740 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2021-10-28 23:18:14,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:18:14,743 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 15 transitions. [2021-10-28 23:18:14,744 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 23:18:14,748 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 6 states and 8 transitions. [2021-10-28 23:18:14,750 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-28 23:18:14,750 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-28 23:18:14,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 8 transitions. [2021-10-28 23:18:14,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:18:14,751 INFO L681 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2021-10-28 23:18:14,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 8 transitions. [2021-10-28 23:18:14,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2021-10-28 23:18:14,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 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) [2021-10-28 23:18:14,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2021-10-28 23:18:14,779 INFO L704 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2021-10-28 23:18:14,779 INFO L587 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2021-10-28 23:18:14,779 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:18:14,779 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2021-10-28 23:18:14,780 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 23:18:14,780 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:18:14,780 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:18:14,781 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 23:18:14,781 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 23:18:14,781 INFO L791 eck$LassoCheckResult]: Stem: 34#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 35#L-1 havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 37#L35-3 [2021-10-28 23:18:14,781 INFO L793 eck$LassoCheckResult]: Loop: 37#L35-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 38#L31-2 assume !(main_~j~0 < 20); 39#L31-3 main_~k~0 := 4; 36#L35-2 assume !(main_~k~0 <= 3); 37#L35-3 [2021-10-28 23:18:14,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:14,783 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2021-10-28 23:18:14,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:18:14,783 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678628677] [2021-10-28 23:18:14,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:14,784 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:18:14,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:18:14,800 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:18:14,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:18:14,824 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:18:14,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:14,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1269295, now seen corresponding path program 1 times [2021-10-28 23:18:14,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:18:14,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478008768] [2021-10-28 23:18:14,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:14,826 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:18:14,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:18:14,844 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:18:14,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:18:14,859 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:18:14,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:14,860 INFO L85 PathProgramCache]: Analyzing trace with hash 889696497, now seen corresponding path program 1 times [2021-10-28 23:18:14,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:18:14,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726288641] [2021-10-28 23:18:14,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:14,861 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:18:14,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:14,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:18:14,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:18:14,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726288641] [2021-10-28 23:18:14,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726288641] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:18:14,918 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:18:14,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:18:14,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424763210] [2021-10-28 23:18:15,051 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:18:15,052 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:18:15,052 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:18:15,052 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:18:15,053 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:18:15,053 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:15,053 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:18:15,053 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:18:15,053 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration2_Loop [2021-10-28 23:18:15,054 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:18:15,054 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:18:15,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:15,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:15,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:15,143 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:18:15,144 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:18:15,147 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:15,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:15,150 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:15,153 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:18:15,153 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:18:15,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 23:18:15,177 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:18:15,177 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=20} Honda state: {ULTIMATE.start_main_~j~0=20} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:18:15,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:15,203 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:15,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:15,205 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:15,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 23:18:15,210 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:18:15,210 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:18:15,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:15,261 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:15,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:15,262 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:15,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 23:18:15,264 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:18:15,269 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:18:15,335 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:18:15,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:15,344 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:18:15,344 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:18:15,344 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:18:15,344 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:18:15,344 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:18:15,345 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:15,345 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:18:15,345 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:18:15,345 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration2_Loop [2021-10-28 23:18:15,345 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:18:15,345 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:18:15,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:15,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:15,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:15,398 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:18:15,403 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:18:15,404 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:15,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:15,406 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:15,420 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 [2021-10-28 23:18:15,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 23:18:15,431 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:18:15,431 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:18:15,432 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:18:15,432 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:18:15,432 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:18:15,434 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:18:15,434 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:18:15,446 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:18:15,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:15,481 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:15,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:15,482 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:15,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 23:18:15,494 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 [2021-10-28 23:18:15,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:18:15,505 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:18:15,505 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:18:15,506 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:18:15,506 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:18:15,511 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:18:15,511 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:18:15,538 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:18:15,543 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:18:15,544 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 23:18:15,545 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:15,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:15,549 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:15,567 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:18:15,568 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:18:15,568 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:18:15,568 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 201 Supporting invariants [] [2021-10-28 23:18:15,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 23:18:15,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:15,611 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:18:15,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:15,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:15,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:18:15,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:18:15,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:15,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:18:15,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:18:15,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:15,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:18:15,829 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 [2021-10-28 23:18:15,835 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:15,874 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 21 transitions. Complement of second has 4 states. [2021-10-28 23:18:15,875 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 [2021-10-28 23:18:15,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:15,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2021-10-28 23:18:15,878 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-28 23:18:15,879 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:18:15,880 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 4 letters. [2021-10-28 23:18:15,880 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:18:15,880 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 2 letters. Loop has 8 letters. [2021-10-28 23:18:15,881 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:18:15,881 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 21 transitions. [2021-10-28 23:18:15,883 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2021-10-28 23:18:15,884 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 13 states and 20 transitions. [2021-10-28 23:18:15,885 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-28 23:18:15,885 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-28 23:18:15,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 20 transitions. [2021-10-28 23:18:15,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:18:15,886 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 20 transitions. [2021-10-28 23:18:15,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 20 transitions. [2021-10-28 23:18:15,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2021-10-28 23:18:15,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 10 states have internal predecessors, (17), 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) [2021-10-28 23:18:15,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 17 transitions. [2021-10-28 23:18:15,889 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 17 transitions. [2021-10-28 23:18:15,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:18:15,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:18:15,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:18:15,892 INFO L87 Difference]: Start difference. First operand 11 states and 17 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:15,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:18:15,905 INFO L93 Difference]: Finished difference Result 12 states and 19 transitions. [2021-10-28 23:18:15,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:18:15,906 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 19 transitions. [2021-10-28 23:18:15,907 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2021-10-28 23:18:15,908 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 19 transitions. [2021-10-28 23:18:15,910 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-28 23:18:15,910 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-28 23:18:15,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 19 transitions. [2021-10-28 23:18:15,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:18:15,911 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 19 transitions. [2021-10-28 23:18:15,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 19 transitions. [2021-10-28 23:18:15,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-10-28 23:18:15,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 states have internal predecessors, (19), 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) [2021-10-28 23:18:15,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 19 transitions. [2021-10-28 23:18:15,917 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 19 transitions. [2021-10-28 23:18:15,918 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 19 transitions. [2021-10-28 23:18:15,918 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:18:15,918 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 19 transitions. [2021-10-28 23:18:15,919 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2021-10-28 23:18:15,919 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:18:15,920 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:18:15,921 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-28 23:18:15,922 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 23:18:15,922 INFO L791 eck$LassoCheckResult]: Stem: 116#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 117#L-1 havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 125#L35-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 126#L31-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 121#L31-2 [2021-10-28 23:18:15,922 INFO L793 eck$LassoCheckResult]: Loop: 121#L31-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 121#L31-2 [2021-10-28 23:18:15,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:15,924 INFO L85 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2021-10-28 23:18:15,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:18:15,925 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124030827] [2021-10-28 23:18:15,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:15,926 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:18:15,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:18:15,942 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:18:15,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:18:15,962 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:18:15,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:15,963 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2021-10-28 23:18:15,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:18:15,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268580992] [2021-10-28 23:18:15,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:15,964 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:18:15,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:18:15,968 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:18:15,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:18:15,989 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:18:15,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:15,992 INFO L85 PathProgramCache]: Analyzing trace with hash 28699944, now seen corresponding path program 2 times [2021-10-28 23:18:15,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:18:15,993 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095358955] [2021-10-28 23:18:15,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:15,993 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:18:16,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:18:16,019 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:18:16,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:18:16,037 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:18:16,406 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:18:16,407 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:18:16,407 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:18:16,407 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:18:16,407 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:18:16,407 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:16,407 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:18:16,407 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:18:16,407 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration3_Lasso [2021-10-28 23:18:16,407 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:18:16,407 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:18:16,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:16,488 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:16,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:16,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:16,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:16,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:16,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:16,736 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:18:16,736 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:18:16,736 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:16,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:16,739 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:16,766 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 [2021-10-28 23:18:16,778 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:18:16,778 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:18:16,778 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:18:16,778 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:18:16,787 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:18:16,788 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:18:16,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 23:18:16,810 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:18:16,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:16,856 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:16,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:16,858 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:16,861 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 [2021-10-28 23:18:16,873 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:18:16,873 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:18:16,873 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:18:16,873 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:18:16,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 23:18:16,880 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:18:16,880 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:18:16,899 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:18:16,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:16,946 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:16,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:16,949 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:16,956 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 [2021-10-28 23:18:16,967 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:18:16,967 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:18:16,967 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:18:16,967 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:18:16,979 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:18:16,979 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:18:16,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 23:18:16,994 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:18:17,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:17,041 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:17,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:17,047 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:17,061 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 [2021-10-28 23:18:17,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 23:18:17,074 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:18:17,074 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:18:17,074 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:18:17,074 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:18:17,079 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:18:17,085 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:18:17,102 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:18:17,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:17,153 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:17,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:17,155 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:17,167 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:18:17,179 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:18:17,179 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:18:17,179 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:18:17,179 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:18:17,183 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:18:17,183 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:18:17,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 23:18:17,198 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:18:17,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:17,244 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:17,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:17,247 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:17,254 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 [2021-10-28 23:18:17,265 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:18:17,266 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:18:17,266 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:18:17,266 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:18:17,270 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:18:17,271 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:18:17,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 23:18:17,286 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:18:17,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:17,333 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:17,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:17,335 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:17,343 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 [2021-10-28 23:18:17,354 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:18:17,355 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:18:17,355 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:18:17,355 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:18:17,359 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:18:17,360 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:18:17,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 23:18:17,374 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:18:17,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:17,419 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:17,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:17,421 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:17,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 23:18:17,426 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 [2021-10-28 23:18:17,437 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:18:17,437 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:18:17,437 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:18:17,437 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:18:17,440 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:18:17,440 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:18:17,458 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:18:17,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:17,499 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:17,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:17,500 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:17,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 23:18:17,508 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 [2021-10-28 23:18:17,519 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:18:17,519 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:18:17,520 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:18:17,520 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:18:17,521 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:18:17,522 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:18:17,538 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:18:17,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:17,577 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:17,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:17,578 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:17,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 23:18:17,581 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 [2021-10-28 23:18:17,590 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:18:17,591 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:18:17,591 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:18:17,591 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:18:17,591 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:18:17,591 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:18:17,591 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:18:17,593 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:18:17,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:17,617 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:17,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:17,618 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:17,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 23:18:17,620 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 [2021-10-28 23:18:17,629 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:18:17,629 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:18:17,629 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:18:17,629 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:18:17,633 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:18:17,633 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:18:17,658 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:18:17,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:17,703 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:17,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:17,704 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:17,716 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 [2021-10-28 23:18:17,727 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:18:17,727 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:18:17,728 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:18:17,728 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:18:17,733 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:18:17,733 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:18:17,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 23:18:17,746 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:18:17,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:17,781 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:17,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:17,782 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:17,789 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 [2021-10-28 23:18:17,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 23:18:17,798 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:18:17,798 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:18:17,798 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:18:17,798 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:18:17,800 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:18:17,800 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:18:17,814 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:18:17,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:17,854 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:17,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:17,855 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:17,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 23:18:17,860 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 [2021-10-28 23:18:17,871 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:18:17,871 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:18:17,871 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:18:17,871 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:18:17,876 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:18:17,876 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:18:17,894 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:18:17,907 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2021-10-28 23:18:17,908 INFO L444 ModelExtractionUtils]: 1 out of 10 variables were initially zero. Simplification set additionally 4 variables to zero. [2021-10-28 23:18:17,908 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:17,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:17,910 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:17,919 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:18:17,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 23:18:17,950 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-10-28 23:18:17,950 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:18:17,951 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 39 Supporting invariants [1*ULTIMATE.start_main_~i~0 - 1 >= 0] [2021-10-28 23:18:17,986 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2021-10-28 23:18:17,997 INFO L297 tatePredicateManager]: 4 out of 5 supporting invariants were superfluous and have been removed [2021-10-28 23:18:18,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:18,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:18,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:18:18,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:18:18,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:18,143 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 23:18:18,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:18:18,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:18:18,144 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 1 loop predicates [2021-10-28 23:18:18,145 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 19 transitions. cyclomatic complexity: 10 Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2021-10-28 23:18:18,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:18,209 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 19 transitions. cyclomatic complexity: 10. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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 21 states and 34 transitions. Complement of second has 6 states. [2021-10-28 23:18:18,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 23:18:18,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2021-10-28 23:18:18,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2021-10-28 23:18:18,213 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 1 letters. [2021-10-28 23:18:18,213 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:18:18,213 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 5 letters. Loop has 1 letters. [2021-10-28 23:18:18,213 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:18:18,214 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-28 23:18:18,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:18:18,214 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 34 transitions. [2021-10-28 23:18:18,219 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 23:18:18,221 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 18 states and 28 transitions. [2021-10-28 23:18:18,221 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-28 23:18:18,222 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-28 23:18:18,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 28 transitions. [2021-10-28 23:18:18,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:18:18,222 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 28 transitions. [2021-10-28 23:18:18,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 28 transitions. [2021-10-28 23:18:18,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2021-10-28 23:18:18,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.588235294117647) internal successors, (27), 16 states have internal predecessors, (27), 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) [2021-10-28 23:18:18,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 27 transitions. [2021-10-28 23:18:18,229 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 27 transitions. [2021-10-28 23:18:18,229 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 27 transitions. [2021-10-28 23:18:18,229 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 23:18:18,230 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 27 transitions. [2021-10-28 23:18:18,238 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 23:18:18,238 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:18:18,239 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:18:18,239 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:18:18,239 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 23:18:18,240 INFO L791 eck$LassoCheckResult]: Stem: 213#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 214#L-1 havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 224#L35-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 225#L31-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 218#L31-2 assume !(main_~j~0 < 20); 219#L31-3 main_~k~0 := 4; 215#L35-2 [2021-10-28 23:18:18,240 INFO L793 eck$LassoCheckResult]: Loop: 215#L35-2 assume !!(main_~k~0 <= 3);main_~k~0 := 1 + main_~k~0; 215#L35-2 [2021-10-28 23:18:18,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:18,241 INFO L85 PathProgramCache]: Analyzing trace with hash 889698226, now seen corresponding path program 1 times [2021-10-28 23:18:18,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:18:18,248 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661702187] [2021-10-28 23:18:18,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:18,249 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:18:18,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:18,345 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:18:18,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:18:18,346 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661702187] [2021-10-28 23:18:18,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661702187] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:18:18,347 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126932675] [2021-10-28 23:18:18,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:18,347 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:18:18,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:18,349 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:18:18,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-10-28 23:18:18,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:18,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 23:18:18,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:18:18,477 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:18:18,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2126932675] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:18:18,478 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:18:18,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-10-28 23:18:18,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408434899] [2021-10-28 23:18:18,479 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:18:18,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:18,479 INFO L85 PathProgramCache]: Analyzing trace with hash 64, now seen corresponding path program 1 times [2021-10-28 23:18:18,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:18:18,480 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016671640] [2021-10-28 23:18:18,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:18,481 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:18:18,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:18:18,485 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:18:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:18:18,488 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:18:18,503 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:18:18,503 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:18:18,503 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:18:18,504 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:18:18,504 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:18:18,504 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:18,504 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:18:18,504 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:18:18,505 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration4_Loop [2021-10-28 23:18:18,505 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:18:18,505 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:18:18,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:18,525 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:18:18,526 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:18:18,526 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:18,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:18,527 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:18,535 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:18:18,535 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:18:18,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 23:18:18,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:18,600 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:18,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:18,603 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:18,606 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:18:18,606 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:18:18,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 23:18:18,653 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:18:18,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:18,658 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:18:18,658 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:18:18,658 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:18:18,658 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:18:18,658 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:18:18,658 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:18,658 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:18:18,658 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:18:18,658 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration4_Loop [2021-10-28 23:18:18,659 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:18:18,659 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:18:18,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:18,681 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:18:18,682 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:18:18,682 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:18,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:18,684 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:18,693 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 [2021-10-28 23:18:18,704 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:18:18,705 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:18:18,705 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:18:18,705 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:18:18,705 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:18:18,706 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:18:18,707 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:18:18,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 23:18:18,709 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:18:18,712 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:18:18,712 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 23:18:18,713 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:18,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:18,715 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:18,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 23:18:18,717 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:18:18,717 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:18:18,717 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:18:18,717 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0) = -2*ULTIMATE.start_main_~k~0 + 7 Supporting invariants [] [2021-10-28 23:18:18,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:18,742 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:18:18,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:18,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:18,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:18:18,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:18:18,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:18,811 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:18:18,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:18:18,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:18:18,812 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-28 23:18:18,812 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 27 transitions. cyclomatic complexity: 14 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:18,839 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 27 transitions. cyclomatic complexity: 14. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 48 states and 76 transitions. Complement of second has 5 states. [2021-10-28 23:18:18,839 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 [2021-10-28 23:18:18,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:18,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2021-10-28 23:18:18,844 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 1 letters. [2021-10-28 23:18:18,844 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:18:18,845 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 7 letters. Loop has 1 letters. [2021-10-28 23:18:18,845 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:18:18,845 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 2 letters. [2021-10-28 23:18:18,846 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:18:18,846 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 76 transitions. [2021-10-28 23:18:18,851 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 23:18:18,852 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 32 states and 52 transitions. [2021-10-28 23:18:18,852 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-10-28 23:18:18,853 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-28 23:18:18,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 52 transitions. [2021-10-28 23:18:18,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:18:18,853 INFO L681 BuchiCegarLoop]: Abstraction has 32 states and 52 transitions. [2021-10-28 23:18:18,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 52 transitions. [2021-10-28 23:18:18,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 17. [2021-10-28 23:18:18,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 16 states have internal predecessors, (26), 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) [2021-10-28 23:18:18,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 26 transitions. [2021-10-28 23:18:18,859 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2021-10-28 23:18:18,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:18:18,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:18:18,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:18:18,862 INFO L87 Difference]: Start difference. First operand 17 states and 26 transitions. Second operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 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) [2021-10-28 23:18:18,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:18:18,885 INFO L93 Difference]: Finished difference Result 18 states and 27 transitions. [2021-10-28 23:18:18,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:18:18,886 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 27 transitions. [2021-10-28 23:18:18,889 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 23:18:18,891 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 27 transitions. [2021-10-28 23:18:18,891 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-28 23:18:18,891 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-28 23:18:18,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 27 transitions. [2021-10-28 23:18:18,892 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:18:18,892 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2021-10-28 23:18:18,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 27 transitions. [2021-10-28 23:18:18,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-10-28 23:18:18,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.5) internal successors, (27), 17 states have internal predecessors, (27), 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) [2021-10-28 23:18:18,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 27 transitions. [2021-10-28 23:18:18,900 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2021-10-28 23:18:18,900 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2021-10-28 23:18:18,900 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 23:18:18,900 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 27 transitions. [2021-10-28 23:18:18,903 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 23:18:18,903 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:18:18,903 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:18:18,904 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1] [2021-10-28 23:18:18,905 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 23:18:18,905 INFO L791 eck$LassoCheckResult]: Stem: 372#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); 373#L-1 havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 377#L35-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 381#L31-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 382#L31-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 387#L31-2 assume !(main_~j~0 < 20); 384#L31-3 main_~k~0 := 4; 375#L35-2 assume !(main_~k~0 <= 3); 376#L35-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 383#L31-2 assume !(main_~j~0 < 20); 379#L31-3 main_~k~0 := 4; 374#L35-2 [2021-10-28 23:18:18,905 INFO L793 eck$LassoCheckResult]: Loop: 374#L35-2 assume !!(main_~k~0 <= 3);main_~k~0 := 1 + main_~k~0; 374#L35-2 [2021-10-28 23:18:18,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:18,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1360977536, now seen corresponding path program 1 times [2021-10-28 23:18:18,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:18:18,906 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029863714] [2021-10-28 23:18:18,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:18,907 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:18:18,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:19,007 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 23:18:19,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:18:19,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029863714] [2021-10-28 23:18:19,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029863714] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:18:19,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761208494] [2021-10-28 23:18:19,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:19,012 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:18:19,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:19,014 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:18:19,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-10-28 23:18:19,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:19,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:18:19,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:18:19,215 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 23:18:19,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [761208494] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:18:19,254 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:18:19,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-10-28 23:18:19,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095347698] [2021-10-28 23:18:19,255 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:18:19,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:19,256 INFO L85 PathProgramCache]: Analyzing trace with hash 64, now seen corresponding path program 2 times [2021-10-28 23:18:19,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:18:19,257 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762170648] [2021-10-28 23:18:19,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:19,257 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:18:19,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:18:19,261 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:18:19,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:18:19,264 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:18:19,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:19,288 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:18:19,289 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:18:19,289 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:18:19,289 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:18:19,289 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:18:19,289 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:19,289 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:18:19,289 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:18:19,290 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration5_Loop [2021-10-28 23:18:19,290 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:18:19,290 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:18:19,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:19,311 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:18:19,311 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:18:19,311 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:19,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:19,313 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:19,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 23:18:19,321 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:18:19,321 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:18:19,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:19,383 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:19,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:19,384 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:19,387 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:18:19,387 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:18:19,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 23:18:19,431 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:18:19,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:19,438 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:18:19,438 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:18:19,438 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:18:19,438 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:18:19,438 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:18:19,438 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:19,438 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:18:19,438 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:18:19,438 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration5_Loop [2021-10-28 23:18:19,438 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:18:19,439 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:18:19,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:19,479 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:18:19,479 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:18:19,479 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:19,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:19,480 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:19,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 23:18:19,486 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 [2021-10-28 23:18:19,495 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:18:19,496 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:18:19,496 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:18:19,496 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:18:19,496 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:18:19,498 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:18:19,498 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:18:19,514 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:18:19,520 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:18:19,520 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 23:18:19,520 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:19,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:19,522 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:19,523 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:18:19,523 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:18:19,523 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:18:19,523 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0) = -2*ULTIMATE.start_main_~k~0 + 7 Supporting invariants [] [2021-10-28 23:18:19,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-28 23:18:19,549 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-10-28 23:18:19,549 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:18:19,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:19,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:19,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:18:19,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:18:19,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:19,628 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:18:19,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:18:19,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:18:19,630 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-28 23:18:19,630 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2021-10-28 23:18:19,644 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) Result 44 states and 69 transitions. Complement of second has 5 states. [2021-10-28 23:18:19,645 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 [2021-10-28 23:18:19,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2021-10-28 23:18:19,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2021-10-28 23:18:19,646 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 1 letters. [2021-10-28 23:18:19,646 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:18:19,646 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:18:19,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:19,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:19,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:18:19,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:18:19,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:19,730 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:18:19,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:18:19,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:18:19,732 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-28 23:18:19,733 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2021-10-28 23:18:19,755 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) Result 44 states and 69 transitions. Complement of second has 5 states. [2021-10-28 23:18:19,756 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 [2021-10-28 23:18:19,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2021-10-28 23:18:19,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2021-10-28 23:18:19,757 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 1 letters. [2021-10-28 23:18:19,757 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:18:19,757 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:18:19,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:19,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:19,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:18:19,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:18:19,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:19,831 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:18:19,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:18:19,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:18:19,832 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-28 23:18:19,833 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2021-10-28 23:18:19,852 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) Result 33 states and 49 transitions. Complement of second has 4 states. [2021-10-28 23:18:19,853 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 [2021-10-28 23:18:19,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2021-10-28 23:18:19,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2021-10-28 23:18:19,854 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 11 letters. Loop has 1 letters. [2021-10-28 23:18:19,855 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:18:19,855 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 12 letters. Loop has 1 letters. [2021-10-28 23:18:19,855 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:18:19,856 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 11 letters. Loop has 2 letters. [2021-10-28 23:18:19,856 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:18:19,857 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 49 transitions. [2021-10-28 23:18:19,861 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:18:19,861 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 0 states and 0 transitions. [2021-10-28 23:18:19,861 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 23:18:19,862 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 23:18:19,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 23:18:19,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:18:19,862 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:18:19,862 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:18:19,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:18:19,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:18:19,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:18:19,864 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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) [2021-10-28 23:18:19,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:18:19,865 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-10-28 23:18:19,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:18:19,865 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-10-28 23:18:19,865 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:18:19,865 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 23:18:19,866 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 23:18:19,866 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 23:18:19,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 23:18:19,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:18:19,866 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:18:19,866 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:18:19,867 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:18:19,867 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 23:18:19,867 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:18:19,867 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:18:19,867 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 23:18:19,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:18:19 BoogieIcfgContainer [2021-10-28 23:18:19,875 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:18:19,876 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:18:19,876 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:18:19,876 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:18:19,877 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:18:14" (3/4) ... [2021-10-28 23:18:19,881 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:18:19,881 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:18:19,883 INFO L168 Benchmark]: Toolchain (without parser) took 6446.24 ms. Allocated memory was 83.9 MB in the beginning and 121.6 MB in the end (delta: 37.7 MB). Free memory was 47.4 MB in the beginning and 72.2 MB in the end (delta: -24.8 MB). Peak memory consumption was 13.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:18:19,884 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 83.9 MB. Free memory was 63.5 MB in the beginning and 63.5 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:18:19,885 INFO L168 Benchmark]: CACSL2BoogieTranslator took 352.62 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 47.2 MB in the beginning and 77.4 MB in the end (delta: -30.2 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:18:19,887 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.52 ms. Allocated memory is still 100.7 MB. Free memory was 77.4 MB in the beginning and 75.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:18:19,887 INFO L168 Benchmark]: Boogie Preprocessor took 55.26 ms. Allocated memory is still 100.7 MB. Free memory was 75.9 MB in the beginning and 74.9 MB in the end (delta: 931.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:18:19,888 INFO L168 Benchmark]: RCFGBuilder took 335.53 ms. Allocated memory is still 100.7 MB. Free memory was 74.9 MB in the beginning and 66.0 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:18:19,888 INFO L168 Benchmark]: BuchiAutomizer took 5603.74 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 66.0 MB in the beginning and 72.2 MB in the end (delta: -6.2 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:18:19,889 INFO L168 Benchmark]: Witness Printer took 5.30 ms. Allocated memory is still 121.6 MB. Free memory is still 72.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:18:19,894 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 83.9 MB. Free memory was 63.5 MB in the beginning and 63.5 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 352.62 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 47.2 MB in the beginning and 77.4 MB in the end (delta: -30.2 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.52 ms. Allocated memory is still 100.7 MB. Free memory was 77.4 MB in the beginning and 75.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.26 ms. Allocated memory is still 100.7 MB. Free memory was 75.9 MB in the beginning and 74.9 MB in the end (delta: 931.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 335.53 ms. Allocated memory is still 100.7 MB. Free memory was 74.9 MB in the beginning and 66.0 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 5603.74 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 66.0 MB in the beginning and 72.2 MB in the end (delta: -6.2 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. * Witness Printer took 5.30 ms. Allocated memory is still 121.6 MB. Free memory is still 72.2 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 8 terminating modules (4 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * i + 201 and consists of 3 locations. One deterministic module has affine ranking function 39 + -2 * j and consists of 5 locations. One deterministic module has affine ranking function 7 + -2 * k and consists of 3 locations. One nondeterministic module has affine ranking function 7 + -2 * k and consists of 3 locations. 4 modules have a trivial ranking function, the largest among these consists of 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.5s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 4.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 18 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 4. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 81 SDtfs, 52 SDslu, 32 SDs, 0 SdLazy, 43 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT1 SILN0 SILU0 SILI0 SILT2 lasso1 LassoPreprocessingBenchmarks: Lassos: inital24 mio100 ax100 hnf100 lsp85 ukn92 mio100 lsp93 div100 bol100 ite100 ukn100 eq164 hnf93 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 73ms VariablesStem: 3 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 23:18:19,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:20,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:20,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:20,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c3bf4d-5e85-40cd-a1a6-5da58f362cf7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...