./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 e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-lit/cggmp2005b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5a85ef4e6caed20a9aa6e00fcf3a476ebe3f071202fc083a4545018fb19b4c9c .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 20:24:34,959 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:24:34,961 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:24:34,996 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:24:34,996 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:24:34,998 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:24:35,000 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:24:35,003 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:24:35,006 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:24:35,008 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:24:35,009 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:24:35,011 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:24:35,012 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:24:35,014 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:24:35,016 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:24:35,018 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:24:35,019 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:24:35,021 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:24:35,024 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:24:35,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:24:35,029 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:24:35,037 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:24:35,039 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:24:35,040 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:24:35,045 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:24:35,053 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:24:35,053 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:24:35,055 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:24:35,056 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:24:35,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:24:35,059 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:24:35,061 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:24:35,063 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:24:35,064 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:24:35,066 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:24:35,067 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:24:35,068 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:24:35,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:24:35,069 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:24:35,070 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:24:35,071 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:24:35,072 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 20:24:35,102 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:24:35,102 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:24:35,103 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:24:35,103 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:24:35,104 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:24:35,104 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:24:35,105 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:24:35,105 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 20:24:35,105 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 20:24:35,105 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 20:24:35,106 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 20:24:35,106 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 20:24:35,106 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 20:24:35,106 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:24:35,106 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:24:35,107 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 20:24:35,107 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:24:35,107 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:24:35,107 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:24:35,108 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 20:24:35,108 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 20:24:35,108 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 20:24:35,108 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:24:35,108 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:24:35,109 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 20:24:35,109 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:24:35,109 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 20:24:35,109 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:24:35,110 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:24:35,110 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:24:35,110 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:24:35,110 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:24:35,117 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 20:24:35,117 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_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a85ef4e6caed20a9aa6e00fcf3a476ebe3f071202fc083a4545018fb19b4c9c [2021-10-21 20:24:35,427 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:24:35,468 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:24:35,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:24:35,473 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:24:35,475 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:24:35,477 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/loop-lit/cggmp2005b.i [2021-10-21 20:24:35,570 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/data/1346084be/6e9fd80aa3ac425c84a37a369a41e6d4/FLAG777f23abf [2021-10-21 20:24:36,080 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:24:36,080 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/sv-benchmarks/c/loop-lit/cggmp2005b.i [2021-10-21 20:24:36,090 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/data/1346084be/6e9fd80aa3ac425c84a37a369a41e6d4/FLAG777f23abf [2021-10-21 20:24:36,447 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/data/1346084be/6e9fd80aa3ac425c84a37a369a41e6d4 [2021-10-21 20:24:36,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:24:36,452 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:24:36,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:24:36,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:24:36,470 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:24:36,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:24:36" (1/1) ... [2021-10-21 20:24:36,475 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61a425a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:24:36, skipping insertion in model container [2021-10-21 20:24:36,475 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:24:36" (1/1) ... [2021-10-21 20:24:36,487 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:24:36,505 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:24:36,700 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_5f2604cb-0a72-4ec4-b91b-54405c836d09/sv-benchmarks/c/loop-lit/cggmp2005b.i[895,908] [2021-10-21 20:24:36,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:24:36,722 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:24:36,738 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_5f2604cb-0a72-4ec4-b91b-54405c836d09/sv-benchmarks/c/loop-lit/cggmp2005b.i[895,908] [2021-10-21 20:24:36,743 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:24:36,759 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:24:36,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:24:36 WrapperNode [2021-10-21 20:24:36,760 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:24:36,761 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:24:36,761 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:24:36,762 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:24:36,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:24:36" (1/1) ... [2021-10-21 20:24:36,780 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:24:36" (1/1) ... [2021-10-21 20:24:36,811 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:24:36,814 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:24:36,814 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:24:36,814 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:24:36,825 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:24:36" (1/1) ... [2021-10-21 20:24:36,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:24:36" (1/1) ... [2021-10-21 20:24:36,842 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:24:36" (1/1) ... [2021-10-21 20:24:36,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:24:36" (1/1) ... [2021-10-21 20:24:36,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:24:36" (1/1) ... [2021-10-21 20:24:36,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:24:36" (1/1) ... [2021-10-21 20:24:36,857 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:24:36" (1/1) ... [2021-10-21 20:24:36,859 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:24:36,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:24:36,861 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:24:36,861 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:24:36,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:24:36" (1/1) ... [2021-10-21 20:24:36,876 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:24:36,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:24:36,900 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:24:36,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 20:24:36,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 20:24:36,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:24:36,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:24:36,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:24:37,151 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:24:37,151 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-21 20:24:37,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:24:37 BoogieIcfgContainer [2021-10-21 20:24:37,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:24:37,155 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 20:24:37,155 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 20:24:37,159 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 20:24:37,160 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:24:37,160 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 08:24:36" (1/3) ... [2021-10-21 20:24:37,162 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@55a818a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:24:37, skipping insertion in model container [2021-10-21 20:24:37,162 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:24:37,163 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:24:36" (2/3) ... [2021-10-21 20:24:37,163 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@55a818a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:24:37, skipping insertion in model container [2021-10-21 20:24:37,163 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:24:37,163 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:24:37" (3/3) ... [2021-10-21 20:24:37,165 INFO L389 chiAutomizerObserver]: Analyzing ICFG cggmp2005b.i [2021-10-21 20:24:37,223 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 20:24:37,223 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 20:24:37,224 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 20:24:37,224 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 20:24:37,224 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 20:24:37,224 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 20:24:37,224 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 20:24:37,225 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 20:24:37,243 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) [2021-10-21 20:24:37,265 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-21 20:24:37,266 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:24:37,266 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:24:37,273 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-21 20:24:37,273 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-21 20:24:37,274 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 20:24:37,274 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) [2021-10-21 20:24:37,276 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-21 20:24:37,276 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:24:37,276 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:24:37,277 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-21 20:24:37,277 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-21 20:24:37,285 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 [2021-10-21 20:24:37,286 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 [2021-10-21 20:24:37,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:24:37,293 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-21 20:24:37,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:24:37,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108136604] [2021-10-21 20:24:37,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:24:37,307 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:24:37,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:24:37,422 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:24:37,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:24:37,463 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:24:37,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:24:37,467 INFO L82 PathProgramCache]: Analyzing trace with hash 1269299, now seen corresponding path program 1 times [2021-10-21 20:24:37,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:24:37,468 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177152025] [2021-10-21 20:24:37,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:24:37,469 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:24:37,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:24:37,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:24:37,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:24:37,536 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177152025] [2021-10-21 20:24:37,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177152025] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:24:37,538 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:24:37,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-21 20:24:37,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227825983] [2021-10-21 20:24:37,545 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 20:24:37,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:24:37,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 20:24:37,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 20:24:37,568 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) [2021-10-21 20:24:37,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:24:37,576 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2021-10-21 20:24:37,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 20:24:37,578 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 15 transitions. [2021-10-21 20:24:37,580 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-21 20:24:37,584 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 6 states and 8 transitions. [2021-10-21 20:24:37,585 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-21 20:24:37,586 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-21 20:24:37,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 8 transitions. [2021-10-21 20:24:37,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:24:37,587 INFO L681 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2021-10-21 20:24:37,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 8 transitions. [2021-10-21 20:24:37,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2021-10-21 20:24:37,617 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) [2021-10-21 20:24:37,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2021-10-21 20:24:37,619 INFO L704 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2021-10-21 20:24:37,620 INFO L587 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2021-10-21 20:24:37,620 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 20:24:37,620 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2021-10-21 20:24:37,620 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-21 20:24:37,621 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:24:37,621 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:24:37,621 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-21 20:24:37,621 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-21 20:24:37,622 INFO L791 eck$LassoCheckResult]: Stem: 34#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 35#L-1 havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 37#L35-3 [2021-10-21 20:24:37,622 INFO L793 eck$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 [2021-10-21 20:24:37,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:24:37,623 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2021-10-21 20:24:37,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:24:37,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635707329] [2021-10-21 20:24:37,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:24:37,624 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:24:37,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:24:37,641 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:24:37,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:24:37,659 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:24:37,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:24:37,660 INFO L82 PathProgramCache]: Analyzing trace with hash 1269295, now seen corresponding path program 1 times [2021-10-21 20:24:37,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:24:37,661 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226867386] [2021-10-21 20:24:37,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:24:37,661 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:24:37,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:24:37,670 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:24:37,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:24:37,678 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:24:37,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:24:37,679 INFO L82 PathProgramCache]: Analyzing trace with hash 889696497, now seen corresponding path program 1 times [2021-10-21 20:24:37,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:24:37,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402042356] [2021-10-21 20:24:37,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:24:37,680 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:24:37,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:24:37,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:24:37,729 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:24:37,729 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402042356] [2021-10-21 20:24:37,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402042356] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:24:37,730 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:24:37,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:24:37,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278367273] [2021-10-21 20:24:37,844 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:24:37,859 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:24:37,860 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:24:37,860 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:24:37,860 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:24:37,860 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:24:37,861 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:24:37,861 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:24:37,861 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration2_Loop [2021-10-21 20:24:37,861 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:24:37,862 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:24:37,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:24:37,920 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:24:37,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:24:37,984 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:24:37,984 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:24:37,987 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:24:37,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:24:37,989 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:24:38,000 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:24:38,000 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:24:38,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 20:24:38,031 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:24:38,031 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: [] [2021-10-21 20:24:38,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-21 20:24:38,075 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:24:38,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:24:38,080 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:24:38,087 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:24:38,087 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:24:38,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 20:24:38,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-21 20:24:38,158 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:24:38,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:24:38,159 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:24:38,167 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:24:38,168 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:24:38,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 20:24:38,243 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:24:38,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-21 20:24:38,251 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:24:38,251 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:24:38,251 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:24:38,251 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:24:38,252 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:24:38,252 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:24:38,252 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:24:38,252 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:24:38,252 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration2_Loop [2021-10-21 20:24:38,252 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:24:38,253 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:24:38,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:24:38,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:24:38,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:24:38,333 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:24:38,339 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:24:38,340 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:24:38,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:24:38,341 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:24:38,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 20:24:38,347 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:24:38,358 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:24:38,358 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:24:38,358 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:24:38,358 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:24:38,359 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:24:38,361 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:24:38,361 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:24:38,371 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:24:38,410 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-10-21 20:24:38,410 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:24:38,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:24:38,413 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:24:38,424 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:24:38,433 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:24:38,434 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:24:38,434 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:24:38,434 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:24:38,434 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:24:38,436 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:24:38,436 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:24:38,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-21 20:24:38,450 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:24:38,480 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 20:24:38,480 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 20:24:38,482 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:24:38,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:24:38,487 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:24:38,523 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:24:38,524 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 20:24:38,524 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:24:38,524 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 201 Supporting invariants [] [2021-10-21 20:24:38,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-21 20:24:38,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-21 20:24:38,566 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 20:24:38,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:24:38,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:24:38,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:24:38,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:24:38,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:24:38,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:24:38,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:24:38,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:24:38,808 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 20:24:38,809 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) [2021-10-21 20:24:38,844 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. [2021-10-21 20:24:38,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 20:24:38,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:24:38,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2021-10-21 20:24:38,848 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-21 20:24:38,850 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:24:38,850 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 4 letters. [2021-10-21 20:24:38,850 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:24:38,850 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 2 letters. Loop has 8 letters. [2021-10-21 20:24:38,851 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:24:38,851 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 21 transitions. [2021-10-21 20:24:38,853 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2021-10-21 20:24:38,854 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 13 states and 20 transitions. [2021-10-21 20:24:38,855 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-21 20:24:38,855 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-21 20:24:38,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 20 transitions. [2021-10-21 20:24:38,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:24:38,855 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 20 transitions. [2021-10-21 20:24:38,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 20 transitions. [2021-10-21 20:24:38,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2021-10-21 20:24:38,857 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) [2021-10-21 20:24:38,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 17 transitions. [2021-10-21 20:24:38,858 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 17 transitions. [2021-10-21 20:24:38,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:24:38,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:24:38,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:24:38,860 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) [2021-10-21 20:24:38,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:24:38,866 INFO L93 Difference]: Finished difference Result 12 states and 19 transitions. [2021-10-21 20:24:38,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:24:38,867 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 19 transitions. [2021-10-21 20:24:38,871 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2021-10-21 20:24:38,872 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 19 transitions. [2021-10-21 20:24:38,873 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-21 20:24:38,873 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-21 20:24:38,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 19 transitions. [2021-10-21 20:24:38,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:24:38,873 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 19 transitions. [2021-10-21 20:24:38,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 19 transitions. [2021-10-21 20:24:38,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-10-21 20:24:38,875 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) [2021-10-21 20:24:38,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 19 transitions. [2021-10-21 20:24:38,876 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 19 transitions. [2021-10-21 20:24:38,876 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 19 transitions. [2021-10-21 20:24:38,876 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 20:24:38,876 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 19 transitions. [2021-10-21 20:24:38,877 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2021-10-21 20:24:38,877 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:24:38,877 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:24:38,878 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-21 20:24:38,878 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-21 20:24:38,878 INFO L791 eck$LassoCheckResult]: Stem: 116#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 117#L-1 havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 125#L35-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 126#L31-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 121#L31-2 [2021-10-21 20:24:38,879 INFO L793 eck$LassoCheckResult]: Loop: 121#L31-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 121#L31-2 [2021-10-21 20:24:38,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:24:38,879 INFO L82 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2021-10-21 20:24:38,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:24:38,880 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429149747] [2021-10-21 20:24:38,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:24:38,880 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:24:38,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:24:38,915 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:24:38,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:24:38,954 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:24:38,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:24:38,955 INFO L82 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2021-10-21 20:24:38,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:24:38,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483921644] [2021-10-21 20:24:38,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:24:38,956 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:24:38,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:24:38,965 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:24:38,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:24:38,988 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:24:38,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:24:38,989 INFO L82 PathProgramCache]: Analyzing trace with hash 28699944, now seen corresponding path program 2 times [2021-10-21 20:24:38,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:24:38,990 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177668672] [2021-10-21 20:24:38,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:24:38,990 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:24:39,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:24:39,012 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:24:39,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:24:39,032 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:24:39,418 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:24:39,419 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:24:39,419 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:24:39,419 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:24:39,419 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:24:39,419 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:24:39,419 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:24:39,420 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:24:39,420 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration3_Lasso [2021-10-21 20:24:39,420 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:24:39,420 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:24:39,425 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:24:39,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-21 20:24:39,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:24:39,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:24:39,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:24:39,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:24:39,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:24:39,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:24:39,728 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:24:39,728 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:24:39,729 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:24:39,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:24:39,730 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:24:39,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-21 20:24:39,739 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:24:39,751 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:24:39,752 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:24:39,752 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:24:39,752 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:24:39,759 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:24:39,759 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:24:39,779 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:24:39,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-21 20:24:39,824 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:24:39,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:24:39,826 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:24:39,836 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:24:39,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:24:39,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:24:39,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:24:39,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:24:39,856 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:24:39,856 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:24:39,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-21 20:24:39,863 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:24:39,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-21 20:24:39,899 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:24:39,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:24:39,900 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:24:39,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-21 20:24:39,903 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:24:39,911 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:24:39,911 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:24:39,911 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:24:39,912 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:24:39,916 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:24:39,916 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:24:39,947 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:24:39,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-21 20:24:39,985 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:24:39,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:24:39,986 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:24:40,000 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:24:40,011 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:24:40,011 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:24:40,011 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:24:40,011 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:24:40,014 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:24:40,014 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:24:40,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-21 20:24:40,043 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:24:40,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-21 20:24:40,084 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:24:40,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:24:40,085 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:24:40,092 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:24:40,102 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:24:40,102 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:24:40,102 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:24:40,102 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:24:40,105 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:24:40,105 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:24:40,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-21 20:24:40,123 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:24:40,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-21 20:24:40,163 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:24:40,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:24:40,164 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:24:40,172 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:24:40,181 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:24:40,181 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:24:40,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:24:40,182 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:24:40,184 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:24:40,184 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:24:40,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-21 20:24:40,203 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:24:40,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-21 20:24:40,234 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:24:40,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:24:40,234 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:24:40,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-21 20:24:40,240 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:24:40,248 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:24:40,248 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:24:40,248 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:24:40,248 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:24:40,250 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:24:40,251 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:24:40,254 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:24:40,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-21 20:24:40,279 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:24:40,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:24:40,280 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:24:40,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-21 20:24:40,282 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:24:40,290 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:24:40,290 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:24:40,290 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:24:40,290 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:24:40,299 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:24:40,299 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:24:40,323 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:24:40,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-21 20:24:40,363 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:24:40,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:24:40,365 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:24:40,371 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:24:40,380 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:24:40,381 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:24:40,381 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:24:40,381 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:24:40,383 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:24:40,383 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:24:40,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-21 20:24:40,395 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:24:40,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-21 20:24:40,438 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:24:40,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:24:40,439 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:24:40,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-21 20:24:40,447 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:24:40,457 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:24:40,457 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:24:40,458 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:24:40,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:24:40,458 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:24:40,458 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:24:40,458 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:24:40,479 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:24:40,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-21 20:24:40,517 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:24:40,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:24:40,518 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:24:40,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-21 20:24:40,524 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:24:40,534 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:24:40,534 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:24:40,534 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:24:40,534 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:24:40,537 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:24:40,537 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:24:40,549 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:24:40,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-21 20:24:40,580 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:24:40,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:24:40,581 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:24:40,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-21 20:24:40,586 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:24:40,594 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:24:40,594 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:24:40,594 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:24:40,594 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:24:40,596 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:24:40,596 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:24:40,619 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:24:40,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-21 20:24:40,641 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:24:40,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:24:40,642 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:24:40,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-21 20:24:40,648 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:24:40,656 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:24:40,656 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:24:40,656 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:24:40,657 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:24:40,659 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:24:40,659 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:24:40,694 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:24:40,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-21 20:24:40,715 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:24:40,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:24:40,716 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:24:40,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-21 20:24:40,720 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:24:40,730 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:24:40,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:24:40,731 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:24:40,731 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:24:40,735 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:24:40,735 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:24:40,754 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:24:40,768 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2021-10-21 20:24:40,768 INFO L444 ModelExtractionUtils]: 1 out of 10 variables were initially zero. Simplification set additionally 4 variables to zero. [2021-10-21 20:24:40,769 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:24:40,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:24:40,775 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:24:40,778 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:24:40,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-21 20:24:40,806 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-10-21 20:24:40,806 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:24:40,807 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] [2021-10-21 20:24:40,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-21 20:24:40,864 INFO L297 tatePredicateManager]: 4 out of 5 supporting invariants were superfluous and have been removed [2021-10-21 20:24:40,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:24:40,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:24:40,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:24:40,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:24:40,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:24:40,985 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 20:24:40,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:24:40,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:24:40,988 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 [2021-10-21 20:24:40,988 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) [2021-10-21 20:24:41,040 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. [2021-10-21 20:24:41,040 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 [2021-10-21 20:24:41,041 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) [2021-10-21 20:24:41,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2021-10-21 20:24:41,043 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 1 letters. [2021-10-21 20:24:41,043 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:24:41,044 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 5 letters. Loop has 1 letters. [2021-10-21 20:24:41,044 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:24:41,044 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-21 20:24:41,044 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:24:41,044 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 34 transitions. [2021-10-21 20:24:41,049 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 20:24:41,051 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 18 states and 28 transitions. [2021-10-21 20:24:41,052 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-21 20:24:41,052 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-21 20:24:41,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 28 transitions. [2021-10-21 20:24:41,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:24:41,052 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 28 transitions. [2021-10-21 20:24:41,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 28 transitions. [2021-10-21 20:24:41,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2021-10-21 20:24:41,057 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) [2021-10-21 20:24:41,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 27 transitions. [2021-10-21 20:24:41,060 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 27 transitions. [2021-10-21 20:24:41,060 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 27 transitions. [2021-10-21 20:24:41,060 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-21 20:24:41,060 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 27 transitions. [2021-10-21 20:24:41,064 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 20:24:41,064 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:24:41,064 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:24:41,064 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 20:24:41,064 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-21 20:24:41,065 INFO L791 eck$LassoCheckResult]: Stem: 213#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 214#L-1 havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 224#L35-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 225#L31-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 218#L31-2 assume !(main_~j~0 < 20); 219#L31-3 main_~k~0 := 4; 215#L35-2 [2021-10-21 20:24:41,065 INFO L793 eck$LassoCheckResult]: Loop: 215#L35-2 assume !!(main_~k~0 <= 3);main_~k~0 := 1 + main_~k~0; 215#L35-2 [2021-10-21 20:24:41,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:24:41,066 INFO L82 PathProgramCache]: Analyzing trace with hash 889698226, now seen corresponding path program 1 times [2021-10-21 20:24:41,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:24:41,066 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197298218] [2021-10-21 20:24:41,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:24:41,071 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:24:41,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:24:41,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:24:41,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:24:41,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197298218] [2021-10-21 20:24:41,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197298218] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:24:41,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934513170] [2021-10-21 20:24:41,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:24:41,160 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:24:41,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:24:41,163 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:24:41,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-10-21 20:24:41,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:24:41,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 20:24:41,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:24:41,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-21 20:24:41,351 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:24:41,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934513170] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:24:41,351 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:24:41,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-10-21 20:24:41,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428210043] [2021-10-21 20:24:41,352 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:24:41,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:24:41,353 INFO L82 PathProgramCache]: Analyzing trace with hash 64, now seen corresponding path program 1 times [2021-10-21 20:24:41,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:24:41,354 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527420718] [2021-10-21 20:24:41,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:24:41,354 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:24:41,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:24:41,362 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:24:41,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:24:41,368 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:24:41,382 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:24:41,382 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:24:41,382 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:24:41,382 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:24:41,382 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:24:41,382 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:24:41,383 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:24:41,383 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:24:41,383 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration4_Loop [2021-10-21 20:24:41,383 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:24:41,383 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:24:41,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:24:41,408 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:24:41,408 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:24:41,408 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:24:41,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:24:41,411 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:24:41,417 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:24:41,418 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:24:41,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-21 20:24:41,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-21 20:24:41,481 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:24:41,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:24:41,482 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:24:41,492 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:24:41,492 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:24:41,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-21 20:24:41,539 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:24:41,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-21 20:24:41,542 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:24:41,542 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:24:41,542 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:24:41,542 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:24:41,542 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:24:41,542 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:24:41,542 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:24:41,543 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:24:41,543 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration4_Loop [2021-10-21 20:24:41,543 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:24:41,543 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:24:41,543 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:24:41,574 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:24:41,575 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:24:41,575 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:24:41,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:24:41,576 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:24:41,579 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:24:41,589 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:24:41,590 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:24:41,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:24:41,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:24:41,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:24:41,591 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:24:41,591 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:24:41,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-21 20:24:41,603 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:24:41,606 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 20:24:41,606 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 20:24:41,606 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:24:41,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:24:41,609 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:24:41,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-21 20:24:41,612 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:24:41,612 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 20:24:41,612 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:24:41,612 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0) = -2*ULTIMATE.start_main_~k~0 + 7 Supporting invariants [] [2021-10-21 20:24:41,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-21 20:24:41,638 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 20:24:41,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:24:41,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:24:41,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:24:41,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:24:41,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:24:41,712 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:24:41,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:24:41,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:24:41,713 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-21 20:24:41,713 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) [2021-10-21 20:24:41,737 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. [2021-10-21 20:24:41,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 20:24:41,738 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) [2021-10-21 20:24:41,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2021-10-21 20:24:41,740 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 1 letters. [2021-10-21 20:24:41,741 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:24:41,741 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 7 letters. Loop has 1 letters. [2021-10-21 20:24:41,741 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:24:41,741 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 2 letters. [2021-10-21 20:24:41,742 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:24:41,742 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 76 transitions. [2021-10-21 20:24:41,747 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 20:24:41,748 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 32 states and 52 transitions. [2021-10-21 20:24:41,748 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-10-21 20:24:41,748 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-21 20:24:41,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 52 transitions. [2021-10-21 20:24:41,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:24:41,749 INFO L681 BuchiCegarLoop]: Abstraction has 32 states and 52 transitions. [2021-10-21 20:24:41,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 52 transitions. [2021-10-21 20:24:41,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 17. [2021-10-21 20:24:41,753 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) [2021-10-21 20:24:41,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 26 transitions. [2021-10-21 20:24:41,755 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2021-10-21 20:24:41,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:24:41,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 20:24:41,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:24:41,756 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) [2021-10-21 20:24:41,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:24:41,776 INFO L93 Difference]: Finished difference Result 18 states and 27 transitions. [2021-10-21 20:24:41,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 20:24:41,776 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 27 transitions. [2021-10-21 20:24:41,779 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 20:24:41,780 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 27 transitions. [2021-10-21 20:24:41,781 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-21 20:24:41,781 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-21 20:24:41,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 27 transitions. [2021-10-21 20:24:41,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:24:41,781 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2021-10-21 20:24:41,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 27 transitions. [2021-10-21 20:24:41,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-10-21 20:24:41,786 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) [2021-10-21 20:24:41,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 27 transitions. [2021-10-21 20:24:41,788 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2021-10-21 20:24:41,788 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2021-10-21 20:24:41,789 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-21 20:24:41,789 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 27 transitions. [2021-10-21 20:24:41,791 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 20:24:41,791 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:24:41,791 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:24:41,792 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1] [2021-10-21 20:24:41,792 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-21 20:24:41,793 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 [2021-10-21 20:24:41,793 INFO L793 eck$LassoCheckResult]: Loop: 374#L35-2 assume !!(main_~k~0 <= 3);main_~k~0 := 1 + main_~k~0; 374#L35-2 [2021-10-21 20:24:41,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:24:41,794 INFO L82 PathProgramCache]: Analyzing trace with hash -1360977536, now seen corresponding path program 1 times [2021-10-21 20:24:41,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:24:41,794 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425736289] [2021-10-21 20:24:41,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:24:41,795 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:24:41,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:24:41,865 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 20:24:41,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:24:41,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425736289] [2021-10-21 20:24:41,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425736289] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:24:41,866 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624553539] [2021-10-21 20:24:41,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:24:41,866 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:24:41,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:24:41,867 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:24:41,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-10-21 20:24:41,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:24:41,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 20:24:41,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:24:42,025 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 20:24:42,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624553539] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:24:42,025 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:24:42,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-10-21 20:24:42,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117572515] [2021-10-21 20:24:42,026 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:24:42,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:24:42,026 INFO L82 PathProgramCache]: Analyzing trace with hash 64, now seen corresponding path program 2 times [2021-10-21 20:24:42,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:24:42,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706740125] [2021-10-21 20:24:42,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:24:42,026 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:24:42,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:24:42,033 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:24:42,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:24:42,041 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:24:42,058 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:24:42,058 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:24:42,058 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:24:42,059 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:24:42,059 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:24:42,059 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:24:42,059 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:24:42,059 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:24:42,059 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration5_Loop [2021-10-21 20:24:42,059 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:24:42,060 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:24:42,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:24:42,080 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:24:42,080 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:24:42,080 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:24:42,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:24:42,087 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:24:42,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-21 20:24:42,090 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:24:42,090 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:24:42,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-21 20:24:42,155 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:24:42,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:24:42,156 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:24:42,167 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:24:42,167 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:24:42,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-21 20:24:42,219 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:24:42,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-21 20:24:42,221 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:24:42,221 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:24:42,221 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:24:42,221 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:24:42,221 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:24:42,221 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:24:42,221 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:24:42,221 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:24:42,221 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration5_Loop [2021-10-21 20:24:42,221 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:24:42,221 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:24:42,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:24:42,247 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:24:42,247 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:24:42,247 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:24:42,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:24:42,248 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:24:42,250 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:24:42,260 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:24:42,260 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:24:42,260 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:24:42,260 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:24:42,260 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:24:42,261 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:24:42,261 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:24:42,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-21 20:24:42,279 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:24:42,281 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 20:24:42,282 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 20:24:42,282 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:24:42,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:24:42,288 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:24:42,289 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:24:42,289 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 20:24:42,289 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:24:42,290 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0) = -2*ULTIMATE.start_main_~k~0 + 7 Supporting invariants [] [2021-10-21 20:24:42,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-21 20:24:42,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-21 20:24:42,323 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 20:24:42,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:24:42,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:24:42,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:24:42,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:24:42,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:24:42,408 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:24:42,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:24:42,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:24:42,410 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-21 20:24:42,410 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) [2021-10-21 20:24:42,431 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. [2021-10-21 20:24:42,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 20:24:42,432 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) [2021-10-21 20:24:42,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2021-10-21 20:24:42,432 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 1 letters. [2021-10-21 20:24:42,433 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:24:42,433 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:24:42,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:24:42,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:24:42,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:24:42,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:24:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:24:42,492 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:24:42,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:24:42,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:24:42,493 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-21 20:24:42,493 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) [2021-10-21 20:24:42,506 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. [2021-10-21 20:24:42,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 20:24:42,507 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) [2021-10-21 20:24:42,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2021-10-21 20:24:42,507 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 1 letters. [2021-10-21 20:24:42,508 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:24:42,508 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:24:42,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:24:42,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:24:42,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:24:42,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:24:42,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:24:42,566 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:24:42,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:24:42,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:24:42,567 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-21 20:24:42,567 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) [2021-10-21 20:24:42,585 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. [2021-10-21 20:24:42,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 20:24:42,586 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) [2021-10-21 20:24:42,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2021-10-21 20:24:42,591 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 11 letters. Loop has 1 letters. [2021-10-21 20:24:42,591 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:24:42,591 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 12 letters. Loop has 1 letters. [2021-10-21 20:24:42,591 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:24:42,592 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 11 letters. Loop has 2 letters. [2021-10-21 20:24:42,592 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:24:42,592 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 49 transitions. [2021-10-21 20:24:42,593 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 20:24:42,594 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 0 states and 0 transitions. [2021-10-21 20:24:42,594 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 20:24:42,594 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 20:24:42,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 20:24:42,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:24:42,594 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:24:42,594 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:24:42,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:24:42,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 20:24:42,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-10-21 20:24:42,596 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) [2021-10-21 20:24:42,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:24:42,596 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-10-21 20:24:42,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 20:24:42,596 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-10-21 20:24:42,597 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 20:24:42,597 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 20:24:42,597 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 20:24:42,597 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 20:24:42,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 20:24:42,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:24:42,598 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:24:42,598 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:24:42,598 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:24:42,598 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-21 20:24:42,598 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-21 20:24:42,598 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 20:24:42,598 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-21 20:24:42,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 08:24:42 BoogieIcfgContainer [2021-10-21 20:24:42,622 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 20:24:42,623 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:24:42,623 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:24:42,623 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:24:42,633 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:24:37" (3/4) ... [2021-10-21 20:24:42,636 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 20:24:42,637 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:24:42,638 INFO L168 Benchmark]: Toolchain (without parser) took 6185.53 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 63.7 MB in the beginning and 98.0 MB in the end (delta: -34.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:24:42,639 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 104.9 MB. Free memory was 80.2 MB in the beginning and 80.1 MB in the end (delta: 53.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:24:42,639 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.39 ms. Allocated memory is still 104.9 MB. Free memory was 63.5 MB in the beginning and 80.8 MB in the end (delta: -17.3 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2021-10-21 20:24:42,639 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.65 ms. Allocated memory is still 104.9 MB. Free memory was 80.8 MB in the beginning and 79.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:24:42,640 INFO L168 Benchmark]: Boogie Preprocessor took 46.36 ms. Allocated memory is still 104.9 MB. Free memory was 79.5 MB in the beginning and 78.4 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:24:42,640 INFO L168 Benchmark]: RCFGBuilder took 293.21 ms. Allocated memory is still 104.9 MB. Free memory was 78.4 MB in the beginning and 69.4 MB in the end (delta: 9.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 20:24:42,641 INFO L168 Benchmark]: BuchiAutomizer took 5467.30 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 69.4 MB in the beginning and 98.2 MB in the end (delta: -28.8 MB). Peak memory consumption was 48.0 MB. Max. memory is 16.1 GB. [2021-10-21 20:24:42,641 INFO L168 Benchmark]: Witness Printer took 14.00 ms. Allocated memory is still 125.8 MB. Free memory was 98.2 MB in the beginning and 98.0 MB in the end (delta: 150.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:24:42,644 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks [2021-10-21 20:24:42,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 104.9 MB. Free memory was 80.2 MB in the beginning and 80.1 MB in the end (delta: 53.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 294.39 ms. Allocated memory is still 104.9 MB. Free memory was 63.5 MB in the beginning and 80.8 MB in the end (delta: -17.3 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.65 ms. Allocated memory is still 104.9 MB. Free memory was 80.8 MB in the beginning and 79.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.36 ms. Allocated memory is still 104.9 MB. Free memory was 79.5 MB in the beginning and 78.4 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 293.21 ms. Allocated memory is still 104.9 MB. Free memory was 78.4 MB in the beginning and 69.4 MB in the end (delta: 9.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 5467.30 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 69.4 MB in the beginning and 98.2 MB in the end (delta: -28.8 MB). Peak memory consumption was 48.0 MB. Max. memory is 16.1 GB. * Witness Printer took 14.00 ms. Allocated memory is still 125.8 MB. Free memory was 98.2 MB in the beginning and 98.0 MB in the end (delta: 150.6 kB). 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 5.3s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 4.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 5. Automata minimization 38.4ms 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, 44.4ms 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: 50ms 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! [2021-10-21 20:24:42,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-10-21 20:24:42,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-21 20:24:42,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2021-10-21 20:24:43,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f2604cb-0a72-4ec4-b91b-54405c836d09/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...