./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/NO_23.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/NO_23.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fcb42c45d403119d826fb85259664d72fd3e2539ab650f03e49f091b9d2438bf ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 00:00:51,986 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 00:00:51,989 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 00:00:52,026 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 00:00:52,027 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 00:00:52,029 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 00:00:52,031 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 00:00:52,034 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 00:00:52,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 00:00:52,039 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 00:00:52,040 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 00:00:52,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 00:00:52,043 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 00:00:52,045 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 00:00:52,047 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 00:00:52,049 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 00:00:52,051 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 00:00:52,052 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 00:00:52,056 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 00:00:52,059 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 00:00:52,062 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 00:00:52,064 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 00:00:52,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 00:00:52,068 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 00:00:52,076 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 00:00:52,077 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 00:00:52,077 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 00:00:52,079 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 00:00:52,080 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 00:00:52,081 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 00:00:52,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 00:00:52,083 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 00:00:52,085 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 00:00:52,086 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 00:00:52,088 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 00:00:52,088 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 00:00:52,089 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 00:00:52,090 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 00:00:52,090 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 00:00:52,092 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 00:00:52,093 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 00:00:52,095 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-29 00:00:52,140 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 00:00:52,141 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 00:00:52,141 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-29 00:00:52,142 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-29 00:00:52,144 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 00:00:52,144 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 00:00:52,145 INFO L138 SettingsManager]: * Use SBE=true [2021-10-29 00:00:52,145 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-29 00:00:52,146 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-29 00:00:52,146 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-29 00:00:52,146 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-29 00:00:52,147 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-29 00:00:52,147 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-29 00:00:52,147 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 00:00:52,148 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 00:00:52,148 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 00:00:52,148 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 00:00:52,149 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-29 00:00:52,149 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-29 00:00:52,149 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-29 00:00:52,149 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 00:00:52,150 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-29 00:00:52,150 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 00:00:52,150 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-29 00:00:52,151 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 00:00:52,151 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 00:00:52,151 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 00:00:52,152 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-29 00:00:52,152 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 00:00:52,153 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-29 00:00:52,154 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_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcb42c45d403119d826fb85259664d72fd3e2539ab650f03e49f091b9d2438bf [2021-10-29 00:00:52,522 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 00:00:52,550 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 00:00:52,553 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 00:00:52,555 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 00:00:52,556 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 00:00:52,557 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/termination-restricted-15/NO_23.c [2021-10-29 00:00:52,646 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/data/e38dcb5f0/5e8a9913bab44ca5b4bad0128dc1a67b/FLAG1f8510dfc [2021-10-29 00:00:53,189 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 00:00:53,190 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/sv-benchmarks/c/termination-restricted-15/NO_23.c [2021-10-29 00:00:53,202 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/data/e38dcb5f0/5e8a9913bab44ca5b4bad0128dc1a67b/FLAG1f8510dfc [2021-10-29 00:00:53,559 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/data/e38dcb5f0/5e8a9913bab44ca5b4bad0128dc1a67b [2021-10-29 00:00:53,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 00:00:53,566 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 00:00:53,570 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 00:00:53,570 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 00:00:53,574 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 00:00:53,575 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:00:53" (1/1) ... [2021-10-29 00:00:53,576 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cd3a3b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:53, skipping insertion in model container [2021-10-29 00:00:53,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:00:53" (1/1) ... [2021-10-29 00:00:53,586 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 00:00:53,600 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 00:00:53,746 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 00:00:53,785 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 00:00:53,812 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 00:00:53,827 INFO L208 MainTranslator]: Completed translation [2021-10-29 00:00:53,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:53 WrapperNode [2021-10-29 00:00:53,827 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 00:00:53,829 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 00:00:53,829 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 00:00:53,829 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 00:00:53,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:53" (1/1) ... [2021-10-29 00:00:53,845 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:53" (1/1) ... [2021-10-29 00:00:53,866 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 00:00:53,867 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 00:00:53,867 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 00:00:53,867 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 00:00:53,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:53" (1/1) ... [2021-10-29 00:00:53,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:53" (1/1) ... [2021-10-29 00:00:53,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:53" (1/1) ... [2021-10-29 00:00:53,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:53" (1/1) ... [2021-10-29 00:00:53,881 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:53" (1/1) ... [2021-10-29 00:00:53,886 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:53" (1/1) ... [2021-10-29 00:00:53,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:53" (1/1) ... [2021-10-29 00:00:53,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 00:00:53,889 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 00:00:53,889 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 00:00:53,889 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 00:00:53,890 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:53" (1/1) ... [2021-10-29 00:00:53,900 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:53,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:53,932 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:53,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-29 00:00:53,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 00:00:53,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 00:00:54,174 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 00:00:54,174 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-29 00:00:54,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:00:54 BoogieIcfgContainer [2021-10-29 00:00:54,179 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 00:00:54,180 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-29 00:00:54,180 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-29 00:00:54,184 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-29 00:00:54,185 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-29 00:00:54,186 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.10 12:00:53" (1/3) ... [2021-10-29 00:00:54,188 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1bc328a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.10 12:00:54, skipping insertion in model container [2021-10-29 00:00:54,188 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-29 00:00:54,188 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:53" (2/3) ... [2021-10-29 00:00:54,189 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1bc328a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.10 12:00:54, skipping insertion in model container [2021-10-29 00:00:54,189 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-29 00:00:54,189 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:00:54" (3/3) ... [2021-10-29 00:00:54,191 INFO L389 chiAutomizerObserver]: Analyzing ICFG NO_23.c [2021-10-29 00:00:54,270 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-29 00:00:54,270 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-29 00:00:54,270 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-29 00:00:54,270 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-29 00:00:54,271 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-29 00:00:54,271 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-29 00:00:54,271 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-29 00:00:54,271 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-29 00:00:54,290 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:54,314 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-29 00:00:54,314 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-29 00:00:54,314 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-29 00:00:54,320 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-29 00:00:54,320 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-29 00:00:54,320 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-29 00:00:54,320 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:54,321 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-29 00:00:54,321 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-29 00:00:54,321 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-29 00:00:54,321 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-29 00:00:54,322 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-29 00:00:54,327 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 4#L10-2true [2021-10-29 00:00:54,328 INFO L793 eck$LassoCheckResult]: Loop: 4#L10-2true assume !!(main_~i~0 < 100); 6#L10true assume main_~i~0 < 50;main_~i~0 := 51; 4#L10-2true [2021-10-29 00:00:54,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:54,335 INFO L85 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-29 00:00:54,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:00:54,347 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474550081] [2021-10-29 00:00:54,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:54,349 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:00:54,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:00:54,438 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:00:54,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:00:54,462 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:00:54,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:54,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2021-10-29 00:00:54,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:00:54,467 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314253927] [2021-10-29 00:00:54,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:54,468 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:00:54,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:00:54,476 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:00:54,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:00:54,482 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:00:54,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:54,484 INFO L85 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2021-10-29 00:00:54,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:00:54,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475803419] [2021-10-29 00:00:54,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:54,485 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:00:54,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:00:54,495 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:00:54,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:00:54,501 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:00:54,576 INFO L210 LassoAnalysis]: Preferences: [2021-10-29 00:00:54,577 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-29 00:00:54,577 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-29 00:00:54,578 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-29 00:00:54,578 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-29 00:00:54,578 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:54,578 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-29 00:00:54,578 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-29 00:00:54,579 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration1_Loop [2021-10-29 00:00:54,579 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-29 00:00:54,579 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-29 00:00:54,603 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:00:54,614 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:00:54,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:00:54,697 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-29 00:00:54,698 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-29 00:00:54,700 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:54,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:54,703 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:54,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-29 00:00:54,718 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-29 00:00:54,719 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-29 00:00:54,745 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-29 00:00:54,746 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-29 00:00:54,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:54,796 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:54,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:54,798 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:54,805 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-29 00:00:54,805 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-29 00:00:54,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-29 00:00:54,830 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-29 00:00:54,830 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-29 00:00:54,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:54,877 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:54,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:54,887 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:54,895 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-29 00:00:54,895 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-29 00:00:54,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-29 00:00:54,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:54,946 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:54,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:54,948 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:54,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-29 00:00:54,964 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-29 00:00:54,964 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-29 00:00:55,048 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-29 00:00:55,062 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-10-29 00:00:55,063 INFO L210 LassoAnalysis]: Preferences: [2021-10-29 00:00:55,063 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-29 00:00:55,063 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-29 00:00:55,064 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-29 00:00:55,064 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-29 00:00:55,064 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:55,064 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-29 00:00:55,064 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-29 00:00:55,064 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration1_Loop [2021-10-29 00:00:55,064 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-29 00:00:55,065 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-29 00:00:55,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:00:55,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:00:55,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:00:55,132 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-29 00:00:55,137 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-29 00:00:55,139 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:55,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:55,141 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:55,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-29 00:00:55,150 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 [2021-10-29 00:00:55,163 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:00:55,163 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:00:55,163 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:00:55,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-29 00:00:55,171 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-29 00:00:55,172 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-29 00:00:55,186 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:00:55,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:55,223 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:55,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:55,225 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:55,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-29 00:00:55,228 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 [2021-10-29 00:00:55,237 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:00:55,237 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-29 00:00:55,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:00:55,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:00:55,238 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-29 00:00:55,241 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-29 00:00:55,241 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-29 00:00:55,254 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-29 00:00:55,262 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-29 00:00:55,262 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-29 00:00:55,264 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:55,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:55,266 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:55,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-29 00:00:55,287 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-29 00:00:55,287 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-29 00:00:55,288 INFO L513 LassoAnalysis]: Proved termination. [2021-10-29 00:00:55,288 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 + 50 Supporting invariants [] [2021-10-29 00:00:55,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:55,323 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-29 00:00:55,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:55,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:55,380 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 00:00:55,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:55,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:55,399 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 00:00:55,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:55,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:55,443 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 [2021-10-29 00:00:55,445 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:55,502 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 23 states and 30 transitions. Complement of second has 6 states. [2021-10-29 00:00:55,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-29 00:00:55,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:55,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2021-10-29 00:00:55,508 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2021-10-29 00:00:55,509 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-29 00:00:55,509 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-29 00:00:55,509 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-29 00:00:55,509 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2021-10-29 00:00:55,510 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-29 00:00:55,511 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2021-10-29 00:00:55,514 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-29 00:00:55,518 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2021-10-29 00:00:55,520 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-10-29 00:00:55,520 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-10-29 00:00:55,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2021-10-29 00:00:55,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-29 00:00:55,522 INFO L681 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-29 00:00:55,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2021-10-29 00:00:55,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-10-29 00:00:55,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:55,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2021-10-29 00:00:55,554 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-29 00:00:55,554 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-29 00:00:55,554 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-29 00:00:55,555 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2021-10-29 00:00:55,556 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-29 00:00:55,556 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-29 00:00:55,556 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-29 00:00:55,557 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-29 00:00:55,557 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-29 00:00:55,558 INFO L791 eck$LassoCheckResult]: Stem: 68#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 69#L10-2 assume !!(main_~i~0 < 100); 67#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 63#L10-2 [2021-10-29 00:00:55,558 INFO L793 eck$LassoCheckResult]: Loop: 63#L10-2 assume !!(main_~i~0 < 100); 64#L10 assume main_~i~0 < 50;main_~i~0 := 51; 63#L10-2 [2021-10-29 00:00:55,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:55,559 INFO L85 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2021-10-29 00:00:55,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:00:55,561 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656721928] [2021-10-29 00:00:55,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:55,562 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:00:55,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:55,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:55,605 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:00:55,606 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656721928] [2021-10-29 00:00:55,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656721928] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:55,607 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:55,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-29 00:00:55,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389291824] [2021-10-29 00:00:55,611 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-29 00:00:55,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:55,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2021-10-29 00:00:55,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:00:55,613 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096009812] [2021-10-29 00:00:55,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:55,613 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:00:55,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:00:55,618 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:00:55,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:00:55,622 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:00:55,646 INFO L210 LassoAnalysis]: Preferences: [2021-10-29 00:00:55,646 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-29 00:00:55,646 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-29 00:00:55,646 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-29 00:00:55,646 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-29 00:00:55,646 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:55,647 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-29 00:00:55,647 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-29 00:00:55,647 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration2_Loop [2021-10-29 00:00:55,647 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-29 00:00:55,647 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-29 00:00:55,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:00:55,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:00:55,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:00:55,714 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-29 00:00:55,715 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-29 00:00:55,715 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:55,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:55,726 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:55,730 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-29 00:00:55,731 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-29 00:00:55,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-29 00:00:55,766 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-29 00:00:55,766 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-29 00:00:55,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:55,798 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:55,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:55,799 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:55,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-29 00:00:55,805 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-29 00:00:55,805 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-29 00:00:55,855 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-10-29 00:00:55,855 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:55,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:55,856 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:55,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-29 00:00:55,858 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-29 00:00:55,858 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-29 00:00:55,939 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-29 00:00:55,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-10-29 00:00:55,943 INFO L210 LassoAnalysis]: Preferences: [2021-10-29 00:00:55,943 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-29 00:00:55,943 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-29 00:00:55,943 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-29 00:00:55,943 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-29 00:00:55,943 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:55,943 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-29 00:00:55,943 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-29 00:00:55,943 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration2_Loop [2021-10-29 00:00:55,943 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-29 00:00:55,944 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-29 00:00:55,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:00:55,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:00:55,970 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:00:56,018 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-29 00:00:56,018 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-29 00:00:56,019 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:56,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:56,021 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:56,027 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 [2021-10-29 00:00:56,039 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:00:56,039 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-29 00:00:56,039 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:00:56,039 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:00:56,040 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-29 00:00:56,043 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-29 00:00:56,043 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-29 00:00:56,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-29 00:00:56,089 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-29 00:00:56,092 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-29 00:00:56,093 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-29 00:00:56,093 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:56,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:56,117 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:56,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:56,128 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-29 00:00:56,128 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-29 00:00:56,128 INFO L513 LassoAnalysis]: Proved termination. [2021-10-29 00:00:56,128 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 + 50 Supporting invariants [] [2021-10-29 00:00:56,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-29 00:00:56,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:56,172 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-29 00:00:56,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:56,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:56,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 00:00:56,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:56,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:56,225 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 00:00:56,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:56,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:56,235 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 [2021-10-29 00:00:56,235 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:56,247 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 16 transitions. Complement of second has 5 states. [2021-10-29 00:00:56,248 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 [2021-10-29 00:00:56,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:56,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-10-29 00:00:56,249 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-29 00:00:56,249 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-29 00:00:56,250 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-29 00:00:56,250 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-29 00:00:56,250 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2021-10-29 00:00:56,250 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-29 00:00:56,251 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2021-10-29 00:00:56,252 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-29 00:00:56,252 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2021-10-29 00:00:56,253 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-29 00:00:56,253 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-29 00:00:56,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2021-10-29 00:00:56,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-29 00:00:56,254 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2021-10-29 00:00:56,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2021-10-29 00:00:56,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-29 00:00:56,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:56,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2021-10-29 00:00:56,256 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2021-10-29 00:00:56,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:00:56,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:00:56,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:00:56,261 INFO L87 Difference]: Start difference. First operand 11 states and 16 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:56,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:56,271 INFO L93 Difference]: Finished difference Result 13 states and 17 transitions. [2021-10-29 00:00:56,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:00:56,271 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 17 transitions. [2021-10-29 00:00:56,272 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-29 00:00:56,273 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 12 states and 16 transitions. [2021-10-29 00:00:56,273 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-29 00:00:56,273 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-29 00:00:56,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2021-10-29 00:00:56,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-29 00:00:56,274 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-10-29 00:00:56,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2021-10-29 00:00:56,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2021-10-29 00:00:56,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 10 states have internal predecessors, (15), 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) [2021-10-29 00:00:56,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 15 transitions. [2021-10-29 00:00:56,276 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2021-10-29 00:00:56,276 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2021-10-29 00:00:56,277 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-29 00:00:56,277 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 15 transitions. [2021-10-29 00:00:56,278 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-29 00:00:56,278 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-29 00:00:56,278 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-29 00:00:56,278 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1] [2021-10-29 00:00:56,279 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-29 00:00:56,279 INFO L791 eck$LassoCheckResult]: Stem: 144#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 139#L10-2 assume !!(main_~i~0 < 100); 140#L10 assume main_~i~0 < 50;main_~i~0 := 51; 149#L10-2 assume !!(main_~i~0 < 100); 148#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 146#L10-2 assume !!(main_~i~0 < 100); 142#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 145#L10-2 [2021-10-29 00:00:56,279 INFO L793 eck$LassoCheckResult]: Loop: 145#L10-2 assume !!(main_~i~0 < 100); 147#L10 assume main_~i~0 < 50;main_~i~0 := 51; 145#L10-2 [2021-10-29 00:00:56,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:56,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1366043347, now seen corresponding path program 1 times [2021-10-29 00:00:56,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:00:56,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737780776] [2021-10-29 00:00:56,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:56,281 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:00:56,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:56,305 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-29 00:00:56,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:00:56,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737780776] [2021-10-29 00:00:56,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737780776] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:56,306 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:56,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 00:00:56,307 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218227484] [2021-10-29 00:00:56,307 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-29 00:00:56,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:56,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2021-10-29 00:00:56,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:00:56,308 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355068934] [2021-10-29 00:00:56,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:56,309 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:00:56,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:00:56,314 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:00:56,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:00:56,317 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:00:56,337 INFO L210 LassoAnalysis]: Preferences: [2021-10-29 00:00:56,337 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-29 00:00:56,337 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-29 00:00:56,337 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-29 00:00:56,337 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-29 00:00:56,338 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:56,338 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-29 00:00:56,338 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-29 00:00:56,338 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration3_Loop [2021-10-29 00:00:56,338 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-29 00:00:56,338 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-29 00:00:56,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:00:56,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:00:56,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:00:56,385 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-29 00:00:56,385 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-29 00:00:56,385 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:56,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:56,387 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:56,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-29 00:00:56,399 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-29 00:00:56,400 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-29 00:00:56,426 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-29 00:00:56,426 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-29 00:00:56,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:56,470 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:56,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:56,472 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:56,478 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-29 00:00:56,478 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-29 00:00:56,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-29 00:00:56,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:56,530 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:56,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:56,531 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:56,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-29 00:00:56,534 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-29 00:00:56,534 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-29 00:00:56,610 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-29 00:00:56,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:56,616 INFO L210 LassoAnalysis]: Preferences: [2021-10-29 00:00:56,617 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-29 00:00:56,617 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-29 00:00:56,617 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-29 00:00:56,617 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-29 00:00:56,617 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:56,617 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-29 00:00:56,617 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-29 00:00:56,617 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration3_Loop [2021-10-29 00:00:56,617 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-29 00:00:56,617 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-29 00:00:56,619 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:00:56,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:00:56,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:00:56,686 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-29 00:00:56,686 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-29 00:00:56,686 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:56,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:56,688 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:56,706 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 [2021-10-29 00:00:56,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-29 00:00:56,716 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:00:56,717 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:00:56,717 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:00:56,717 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-29 00:00:56,720 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-29 00:00:56,721 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-29 00:00:56,733 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:00:56,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:56,776 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:56,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:56,777 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:56,790 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 [2021-10-29 00:00:56,801 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:00:56,801 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-29 00:00:56,801 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:00:56,801 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:00:56,801 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-29 00:00:56,803 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-29 00:00:56,803 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-29 00:00:56,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-29 00:00:56,821 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-29 00:00:56,825 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-29 00:00:56,825 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-29 00:00:56,825 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:56,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:56,826 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:56,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-29 00:00:56,830 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-29 00:00:56,830 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-29 00:00:56,830 INFO L513 LassoAnalysis]: Proved termination. [2021-10-29 00:00:56,830 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 + 50 Supporting invariants [] [2021-10-29 00:00:56,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:56,872 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-29 00:00:56,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:56,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:56,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 00:00:56,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:56,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:56,928 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 00:00:56,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:56,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:56,938 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 [2021-10-29 00:00:56,939 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2021-10-29 00:00:56,950 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 13 states and 19 transitions. Complement of second has 5 states. [2021-10-29 00:00:56,951 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 [2021-10-29 00:00:56,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2021-10-29 00:00:56,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-10-29 00:00:56,952 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 7 letters. Loop has 2 letters. [2021-10-29 00:00:56,952 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-29 00:00:56,952 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-29 00:00:56,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:56,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:56,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 00:00:56,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:56,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:56,999 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 00:00:56,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:57,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:57,009 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 [2021-10-29 00:00:57,010 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2021-10-29 00:00:57,019 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 13 states and 19 transitions. Complement of second has 5 states. [2021-10-29 00:00:57,020 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 [2021-10-29 00:00:57,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2021-10-29 00:00:57,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-10-29 00:00:57,021 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 7 letters. Loop has 2 letters. [2021-10-29 00:00:57,021 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-29 00:00:57,021 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-29 00:00:57,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:57,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:57,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 00:00:57,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:57,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:57,067 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 00:00:57,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:57,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:57,077 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 [2021-10-29 00:00:57,077 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2021-10-29 00:00:57,088 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 15 states and 22 transitions. Complement of second has 4 states. [2021-10-29 00:00:57,088 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 [2021-10-29 00:00:57,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2021-10-29 00:00:57,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-10-29 00:00:57,089 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2021-10-29 00:00:57,090 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-29 00:00:57,090 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 9 letters. Loop has 2 letters. [2021-10-29 00:00:57,090 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-29 00:00:57,091 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 4 letters. [2021-10-29 00:00:57,091 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-29 00:00:57,091 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 22 transitions. [2021-10-29 00:00:57,093 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-29 00:00:57,094 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 18 transitions. [2021-10-29 00:00:57,094 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-10-29 00:00:57,094 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-29 00:00:57,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2021-10-29 00:00:57,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-29 00:00:57,095 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2021-10-29 00:00:57,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2021-10-29 00:00:57,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 6. [2021-10-29 00:00:57,096 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) [2021-10-29 00:00:57,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2021-10-29 00:00:57,097 INFO L704 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2021-10-29 00:00:57,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:00:57,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:00:57,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:00:57,098 INFO L87 Difference]: Start difference. First operand 6 states and 8 transitions. Second operand has 3 states, 2 states have (on average 3.0) 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) [2021-10-29 00:00:57,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:57,108 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2021-10-29 00:00:57,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:00:57,109 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2021-10-29 00:00:57,109 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-29 00:00:57,110 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 7 states and 8 transitions. [2021-10-29 00:00:57,110 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-10-29 00:00:57,110 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2021-10-29 00:00:57,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2021-10-29 00:00:57,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-29 00:00:57,111 INFO L681 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2021-10-29 00:00:57,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2021-10-29 00:00:57,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 5. [2021-10-29 00:00:57,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 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) [2021-10-29 00:00:57,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6 transitions. [2021-10-29 00:00:57,112 INFO L704 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2021-10-29 00:00:57,113 INFO L587 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2021-10-29 00:00:57,113 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-29 00:00:57,113 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 6 transitions. [2021-10-29 00:00:57,113 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-29 00:00:57,113 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-29 00:00:57,114 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-29 00:00:57,114 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-29 00:00:57,114 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2021-10-29 00:00:57,114 INFO L791 eck$LassoCheckResult]: Stem: 318#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 314#L10-2 [2021-10-29 00:00:57,114 INFO L793 eck$LassoCheckResult]: Loop: 314#L10-2 assume !!(main_~i~0 < 100); 315#L10 assume main_~i~0 < 50;main_~i~0 := 51; 316#L10-2 assume !!(main_~i~0 < 100); 317#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 314#L10-2 [2021-10-29 00:00:57,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:57,115 INFO L85 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2021-10-29 00:00:57,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:00:57,116 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309907818] [2021-10-29 00:00:57,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:57,116 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:00:57,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:00:57,121 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:00:57,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:00:57,124 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:00:57,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:57,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1234249, now seen corresponding path program 1 times [2021-10-29 00:00:57,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:00:57,125 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273595611] [2021-10-29 00:00:57,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:57,126 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:00:57,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:00:57,132 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:00:57,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:00:57,137 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:00:57,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:57,138 INFO L85 PathProgramCache]: Analyzing trace with hash 29863400, now seen corresponding path program 2 times [2021-10-29 00:00:57,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:00:57,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428375088] [2021-10-29 00:00:57,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:57,139 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:00:57,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:00:57,145 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:00:57,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:00:57,150 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:00:57,197 INFO L210 LassoAnalysis]: Preferences: [2021-10-29 00:00:57,198 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-29 00:00:57,198 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-29 00:00:57,198 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-29 00:00:57,198 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-29 00:00:57,198 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:57,199 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-29 00:00:57,199 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-29 00:00:57,199 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration4_Lasso [2021-10-29 00:00:57,199 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-29 00:00:57,199 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-29 00:00:57,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:00:57,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:00:57,211 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:00:57,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:00:57,260 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-29 00:00:57,260 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-29 00:00:57,260 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:57,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:57,262 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:57,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-29 00:00:57,274 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-29 00:00:57,275 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-29 00:00:57,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:57,350 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:57,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:57,352 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:57,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-29 00:00:57,358 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-29 00:00:57,358 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-29 00:00:57,424 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-29 00:00:57,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:57,428 INFO L210 LassoAnalysis]: Preferences: [2021-10-29 00:00:57,428 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-29 00:00:57,428 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-29 00:00:57,428 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-29 00:00:57,428 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-29 00:00:57,429 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:57,429 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-29 00:00:57,429 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-29 00:00:57,429 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration4_Lasso [2021-10-29 00:00:57,429 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-29 00:00:57,429 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-29 00:00:57,431 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:00:57,441 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:00:57,445 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:00:57,448 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:00:57,518 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-29 00:00:57,518 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-29 00:00:57,518 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:57,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:57,522 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:57,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-29 00:00:57,535 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 [2021-10-29 00:00:57,546 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:00:57,546 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:00:57,546 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:00:57,547 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-29 00:00:57,551 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-29 00:00:57,551 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-29 00:00:57,563 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:00:57,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:57,609 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:57,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:57,611 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:57,615 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 [2021-10-29 00:00:57,626 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:00:57,626 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:00:57,626 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:00:57,626 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-29 00:00:57,629 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-29 00:00:57,630 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-29 00:00:57,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-29 00:00:57,645 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:00:57,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:57,679 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:57,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:57,680 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:57,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-29 00:00:57,683 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 [2021-10-29 00:00:57,691 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:00:57,691 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-29 00:00:57,692 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:00:57,692 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:00:57,692 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-29 00:00:57,692 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-29 00:00:57,692 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-29 00:00:57,705 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:00:57,749 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-10-29 00:00:57,749 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:57,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:57,750 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:57,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-29 00:00:57,762 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 [2021-10-29 00:00:57,778 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:00:57,778 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:00:57,779 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:00:57,779 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-29 00:00:57,783 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-29 00:00:57,783 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-29 00:00:57,805 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:00:57,831 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-10-29 00:00:57,832 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-29 00:00:57,832 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:57,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:57,833 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:57,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-29 00:00:57,834 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 [2021-10-29 00:00:57,843 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:00:57,844 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:00:57,844 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:00:57,844 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-29 00:00:57,851 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-10-29 00:00:57,852 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-10-29 00:00:57,881 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:00:57,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:57,922 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:57,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:57,924 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:57,926 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-29 00:00:57,937 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:00:57,938 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:00:57,938 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:00:57,938 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-29 00:00:57,942 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-10-29 00:00:57,942 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-10-29 00:00:57,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-29 00:00:57,962 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:00:57,995 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-10-29 00:00:57,995 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:57,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:57,997 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:58,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-29 00:00:58,001 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 [2021-10-29 00:00:58,010 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:00:58,010 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-29 00:00:58,010 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:00:58,010 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:00:58,011 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-29 00:00:58,012 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-29 00:00:58,012 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-29 00:00:58,041 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:00:58,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-10-29 00:00:58,070 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:58,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:58,071 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:58,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-29 00:00:58,086 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 [2021-10-29 00:00:58,095 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:00:58,095 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:00:58,095 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:00:58,095 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-29 00:00:58,099 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-10-29 00:00:58,099 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-10-29 00:00:58,116 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:00:58,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:58,157 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-29 00:00:58,157 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:58,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:58,162 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:58,164 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 [2021-10-29 00:00:58,176 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:00:58,176 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:00:58,176 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:00:58,176 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-29 00:00:58,183 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-10-29 00:00:58,183 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-29 00:00:58,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-29 00:00:58,205 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:00:58,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:58,247 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:58,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:58,250 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:58,252 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 [2021-10-29 00:00:58,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-29 00:00:58,263 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:00:58,264 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:00:58,264 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:00:58,264 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-29 00:00:58,267 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-10-29 00:00:58,268 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-29 00:00:58,285 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:00:58,316 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-10-29 00:00:58,317 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:58,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:58,318 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:58,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-29 00:00:58,333 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 [2021-10-29 00:00:58,350 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:00:58,351 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-29 00:00:58,351 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:00:58,351 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:00:58,351 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-29 00:00:58,362 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-29 00:00:58,362 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-29 00:00:58,381 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:00:58,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:58,427 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-10-29 00:00:58,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:58,427 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:58,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:58,428 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:58,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-29 00:00:58,430 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 [2021-10-29 00:00:58,440 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:00:58,440 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:00:58,441 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:00:58,441 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-29 00:00:58,445 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-10-29 00:00:58,445 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-29 00:00:58,450 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:00:58,473 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-10-29 00:00:58,474 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-29 00:00:58,474 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:58,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:58,482 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:58,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-29 00:00:58,490 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 [2021-10-29 00:00:58,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:00:58,498 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:00:58,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:00:58,499 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-29 00:00:58,506 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2021-10-29 00:00:58,506 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2021-10-29 00:00:58,522 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:00:58,559 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-10-29 00:00:58,560 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:58,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:58,561 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:58,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-29 00:00:58,563 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 [2021-10-29 00:00:58,572 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:00:58,572 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:00:58,572 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:00:58,572 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-29 00:00:58,577 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2021-10-29 00:00:58,577 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2021-10-29 00:00:58,593 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:00:58,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:58,618 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:58,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:58,619 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:58,641 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 [2021-10-29 00:00:58,652 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:00:58,652 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-29 00:00:58,653 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:00:58,653 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:00:58,653 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-29 00:00:58,654 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-29 00:00:58,654 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-29 00:00:58,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-29 00:00:58,667 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:00:58,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:58,712 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:58,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:58,713 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:58,719 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 [2021-10-29 00:00:58,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-29 00:00:58,729 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:00:58,729 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:00:58,729 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:00:58,729 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-29 00:00:58,733 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2021-10-29 00:00:58,734 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2021-10-29 00:00:58,748 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:00:58,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:58,789 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-29 00:00:58,789 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:58,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:58,794 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:58,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-29 00:00:58,797 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 [2021-10-29 00:00:58,810 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-29 00:00:58,810 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-29 00:00:58,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:00:58,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:00:58,810 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-29 00:00:58,813 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-10-29 00:00:58,813 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-10-29 00:00:58,833 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:00:58,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:58,857 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:58,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:58,858 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:58,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-29 00:00:58,859 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 [2021-10-29 00:00:58,868 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-29 00:00:58,868 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-29 00:00:58,869 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:00:58,869 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:00:58,869 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-29 00:00:58,871 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-10-29 00:00:58,871 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-10-29 00:00:58,880 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:00:58,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:58,904 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:58,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:58,905 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:58,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-29 00:00:58,911 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 [2021-10-29 00:00:58,920 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-29 00:00:58,920 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-29 00:00:58,920 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-29 00:00:58,920 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:00:58,920 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:00:58,920 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-29 00:00:58,922 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-29 00:00:58,922 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-29 00:00:58,931 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:00:58,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:58,956 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:58,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:58,956 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:58,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-29 00:00:58,959 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 [2021-10-29 00:00:58,968 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-29 00:00:58,968 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-29 00:00:58,968 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:00:58,968 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:00:58,969 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-29 00:00:58,973 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-10-29 00:00:58,973 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-10-29 00:00:59,000 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:00:59,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:59,040 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-29 00:00:59,040 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:59,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:59,041 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:59,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-29 00:00:59,043 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 [2021-10-29 00:00:59,052 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-29 00:00:59,052 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-29 00:00:59,052 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:00:59,052 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:00:59,052 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-29 00:00:59,058 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-10-29 00:00:59,058 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-29 00:00:59,085 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:00:59,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:59,126 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:59,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:59,127 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:59,134 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 [2021-10-29 00:00:59,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-29 00:00:59,145 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-29 00:00:59,145 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-29 00:00:59,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:00:59,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:00:59,145 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-29 00:00:59,149 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-10-29 00:00:59,150 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-29 00:00:59,158 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:00:59,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-10-29 00:00:59,183 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:59,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:59,183 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:59,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-29 00:00:59,185 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 [2021-10-29 00:00:59,194 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-29 00:00:59,194 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-29 00:00:59,195 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-29 00:00:59,195 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:00:59,195 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:00:59,195 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-29 00:00:59,196 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-29 00:00:59,196 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-29 00:00:59,209 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:00:59,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:59,250 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:59,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:59,251 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:59,257 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 [2021-10-29 00:00:59,269 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-29 00:00:59,269 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-29 00:00:59,269 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:00:59,269 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:00:59,269 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-29 00:00:59,275 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-10-29 00:00:59,275 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-29 00:00:59,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-29 00:00:59,297 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:00:59,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:59,339 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-29 00:00:59,339 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:59,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:59,340 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:59,347 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 [2021-10-29 00:00:59,358 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-29 00:00:59,359 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-29 00:00:59,359 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:00:59,359 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:00:59,359 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-29 00:00:59,367 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2021-10-29 00:00:59,367 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2021-10-29 00:00:59,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-29 00:00:59,393 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:00:59,433 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2021-10-29 00:00:59,433 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:59,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:59,434 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:59,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-29 00:00:59,439 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 [2021-10-29 00:00:59,448 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-29 00:00:59,449 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-29 00:00:59,449 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:00:59,449 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:00:59,449 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-29 00:00:59,454 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2021-10-29 00:00:59,454 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2021-10-29 00:00:59,481 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:00:59,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:59,522 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:59,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:59,523 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:59,526 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 [2021-10-29 00:00:59,537 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-29 00:00:59,538 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-29 00:00:59,538 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-29 00:00:59,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:00:59,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:00:59,538 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-29 00:00:59,540 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-29 00:00:59,540 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-29 00:00:59,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-29 00:00:59,557 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:00:59,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:59,597 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:59,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:59,602 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:59,604 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 [2021-10-29 00:00:59,616 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-29 00:00:59,616 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-29 00:00:59,616 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:00:59,616 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:00:59,617 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-29 00:00:59,621 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2021-10-29 00:00:59,622 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2021-10-29 00:00:59,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-29 00:00:59,645 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:00:59,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:59,684 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-29 00:00:59,684 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:59,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:59,685 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:59,687 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 [2021-10-29 00:00:59,699 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-29 00:00:59,699 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-29 00:00:59,699 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:00:59,699 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:00:59,699 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-29 00:00:59,704 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-10-29 00:00:59,704 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-29 00:00:59,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-29 00:00:59,725 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:00:59,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:59,764 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:59,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:59,766 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:59,768 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 [2021-10-29 00:00:59,778 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-29 00:00:59,778 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-29 00:00:59,778 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:00:59,778 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:00:59,778 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-29 00:00:59,781 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-10-29 00:00:59,781 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-29 00:00:59,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-29 00:00:59,801 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:00:59,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:59,841 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:59,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:59,842 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:59,846 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 [2021-10-29 00:00:59,858 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-29 00:00:59,858 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-29 00:00:59,858 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-29 00:00:59,858 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:00:59,858 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:00:59,858 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-29 00:00:59,859 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-29 00:00:59,859 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-29 00:00:59,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-29 00:00:59,877 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:00:59,904 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2021-10-29 00:00:59,904 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:59,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:59,906 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:59,908 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 [2021-10-29 00:00:59,919 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-29 00:00:59,919 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-29 00:00:59,919 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:00:59,919 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:00:59,920 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-29 00:00:59,923 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-10-29 00:00:59,923 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-29 00:00:59,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-29 00:00:59,942 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:00:59,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:59,982 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-29 00:00:59,982 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:00:59,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:59,986 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:59,988 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 [2021-10-29 00:01:00,000 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-29 00:01:00,000 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-29 00:01:00,000 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:01:00,000 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:01:00,000 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-29 00:01:00,007 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2021-10-29 00:01:00,007 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2021-10-29 00:01:00,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-10-29 00:01:00,036 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:01:00,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2021-10-29 00:01:00,069 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:01:00,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:01:00,070 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:01:00,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-29 00:01:00,072 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 [2021-10-29 00:01:00,081 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-29 00:01:00,081 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-29 00:01:00,081 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:01:00,081 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:01:00,081 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-29 00:01:00,086 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2021-10-29 00:01:00,086 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2021-10-29 00:01:00,094 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:01:00,118 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2021-10-29 00:01:00,120 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:01:00,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:01:00,121 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:01:00,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-29 00:01:00,122 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 [2021-10-29 00:01:00,131 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-29 00:01:00,131 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-29 00:01:00,131 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-29 00:01:00,131 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:01:00,131 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:01:00,131 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-29 00:01:00,133 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-29 00:01:00,133 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-29 00:01:00,158 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:01:00,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2021-10-29 00:01:00,198 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:01:00,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:01:00,200 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:01:00,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-29 00:01:00,205 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 [2021-10-29 00:01:00,214 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-29 00:01:00,214 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-29 00:01:00,214 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:01:00,214 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:01:00,214 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-29 00:01:00,219 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2021-10-29 00:01:00,219 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2021-10-29 00:01:00,242 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:01:00,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2021-10-29 00:01:00,283 INFO L469 BuchiCegarLoop]: Result of lasso check was UNKNOWN. I will concatenate loop to stem and try again. [2021-10-29 00:01:00,283 INFO L791 eck$LassoCheckResult]: Stem: 318#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 314#L10-2 assume !!(main_~i~0 < 100); 315#L10 assume main_~i~0 < 50;main_~i~0 := 51; 316#L10-2 assume !!(main_~i~0 < 100); 317#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 314#L10-2 [2021-10-29 00:01:00,283 INFO L793 eck$LassoCheckResult]: Loop: 314#L10-2 assume !!(main_~i~0 < 100); 315#L10 assume main_~i~0 < 50;main_~i~0 := 51; 316#L10-2 assume !!(main_~i~0 < 100); 317#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 314#L10-2 [2021-10-29 00:01:00,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:01:00,284 INFO L85 PathProgramCache]: Analyzing trace with hash 29863400, now seen corresponding path program 3 times [2021-10-29 00:01:00,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:01:00,284 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987485634] [2021-10-29 00:01:00,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:01:00,284 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:01:00,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:01:00,290 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:01:00,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:01:00,295 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:01:00,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:01:00,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1234249, now seen corresponding path program 2 times [2021-10-29 00:01:00,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:01:00,296 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835277214] [2021-10-29 00:01:00,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:01:00,297 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:01:00,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:01:00,301 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:01:00,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:01:00,306 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:01:00,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:01:00,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1492334512, now seen corresponding path program 4 times [2021-10-29 00:01:00,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:01:00,307 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143293932] [2021-10-29 00:01:00,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:01:00,307 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:01:00,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:01:00,314 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:01:00,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:01:00,320 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:01:00,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.10 12:01:00 BoogieIcfgContainer [2021-10-29 00:01:00,383 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-29 00:01:00,384 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 00:01:00,384 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 00:01:00,384 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 00:01:00,385 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:00:54" (3/4) ... [2021-10-29 00:01:00,387 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-29 00:01:00,427 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-29 00:01:00,428 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 00:01:00,430 INFO L168 Benchmark]: Toolchain (without parser) took 6863.67 ms. Allocated memory was 113.2 MB in the beginning and 144.7 MB in the end (delta: 31.5 MB). Free memory was 83.0 MB in the beginning and 52.1 MB in the end (delta: 30.9 MB). Peak memory consumption was 61.3 MB. Max. memory is 16.1 GB. [2021-10-29 00:01:00,430 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 113.2 MB. Free memory is still 67.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 00:01:00,431 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.86 ms. Allocated memory was 113.2 MB in the beginning and 144.7 MB in the end (delta: 31.5 MB). Free memory was 83.0 MB in the beginning and 120.6 MB in the end (delta: -37.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 00:01:00,432 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.05 ms. Allocated memory is still 144.7 MB. Free memory was 120.6 MB in the beginning and 119.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 00:01:00,432 INFO L168 Benchmark]: Boogie Preprocessor took 21.01 ms. Allocated memory is still 144.7 MB. Free memory was 119.4 MB in the beginning and 118.5 MB in the end (delta: 889.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 00:01:00,433 INFO L168 Benchmark]: RCFGBuilder took 289.98 ms. Allocated memory is still 144.7 MB. Free memory was 118.5 MB in the beginning and 110.3 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 00:01:00,433 INFO L168 Benchmark]: BuchiAutomizer took 6203.38 ms. Allocated memory is still 144.7 MB. Free memory was 110.3 MB in the beginning and 54.2 MB in the end (delta: 56.2 MB). Peak memory consumption was 58.2 MB. Max. memory is 16.1 GB. [2021-10-29 00:01:00,434 INFO L168 Benchmark]: Witness Printer took 43.98 ms. Allocated memory is still 144.7 MB. Free memory was 54.2 MB in the beginning and 52.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 00:01:00,437 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 113.2 MB. Free memory is still 67.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 257.86 ms. Allocated memory was 113.2 MB in the beginning and 144.7 MB in the end (delta: 31.5 MB). Free memory was 83.0 MB in the beginning and 120.6 MB in the end (delta: -37.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.05 ms. Allocated memory is still 144.7 MB. Free memory was 120.6 MB in the beginning and 119.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.01 ms. Allocated memory is still 144.7 MB. Free memory was 119.4 MB in the beginning and 118.5 MB in the end (delta: 889.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 289.98 ms. Allocated memory is still 144.7 MB. Free memory was 118.5 MB in the beginning and 110.3 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 6203.38 ms. Allocated memory is still 144.7 MB. Free memory was 110.3 MB in the beginning and 54.2 MB in the end (delta: 56.2 MB). Peak memory consumption was 58.2 MB. Max. memory is 16.1 GB. * Witness Printer took 43.98 ms. Allocated memory is still 144.7 MB. Free memory was 54.2 MB in the beginning and 52.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -1 * i + 50 and consists of 4 locations. One deterministic module has affine ranking function -1 * i + 50 and consists of 3 locations. One nondeterministic module has affine ranking function -1 * i + 50 and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.1s and 4 iterations. TraceHistogramMax:3. Analysis of lassos took 5.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 24 SDtfs, 22 SDslu, 3 SDs, 0 SdLazy, 39 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital8 mio100 ax250 hnf100 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf91 smp100 dnf100 smp100 tf118 neg100 sie115 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 47ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 9]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {\result=0, i=49} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 9]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = 0 [L9] COND TRUE i < 100 [L10] COND TRUE i < 50 [L10] i = 51 [L9] COND TRUE i < 100 [L10] COND FALSE !(i < 50) [L11] i = 49 Loop: [L9] COND TRUE i < 100 [L10] COND TRUE i < 50 [L10] i = 51 [L9] COND TRUE i < 100 [L10] COND FALSE !(i < 50) [L11] i = 49 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-29 00:01:00,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfdc51b1-b266-445f-a14c-aa22d93c01c1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...