./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/byte_add-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/byte_add-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d4eaedc28ae5d992289c7a8b613ef86763e8650d77dc38c2182a834015324e1e 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Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:23:57,797 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:23:57,800 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:23:57,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:23:57,842 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:23:57,843 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:23:57,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:23:57,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:23:57,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:23:57,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:23:57,856 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:23:57,858 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:23:57,859 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:23:57,861 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:23:57,863 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:23:57,866 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:23:57,867 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:23:57,869 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:23:57,872 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:23:57,875 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:23:57,878 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:23:57,880 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:23:57,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:23:57,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:23:57,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:23:57,890 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:23:57,891 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:23:57,892 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:23:57,894 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:23:57,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:23:57,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:23:57,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:23:57,900 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:23:57,901 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:23:57,904 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:23:57,904 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:23:57,906 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:23:57,906 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:23:57,907 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:23:57,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:23:57,910 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:23:57,912 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 09:23:57,945 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:23:57,945 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:23:57,946 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:23:57,946 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:23:57,948 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:23:57,949 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:23:57,949 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:23:57,949 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:23:57,950 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:23:57,950 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:23:57,951 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:23:57,951 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:23:57,951 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:23:57,952 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:23:57,952 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:23:57,953 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:23:57,953 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:23:57,953 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:23:57,954 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:23:57,954 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:23:57,955 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:23:57,955 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:23:57,955 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:23:57,956 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:23:57,956 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:23:57,957 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:23:57,957 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:23:57,957 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:23:57,958 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:23:57,958 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:23:57,959 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:23:57,959 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:23:57,961 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:23:57,961 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_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4eaedc28ae5d992289c7a8b613ef86763e8650d77dc38c2182a834015324e1e [2021-10-28 09:23:58,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:23:58,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:23:58,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:23:58,362 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:23:58,364 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:23:58,365 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/bitvector/byte_add-1.i [2021-10-28 09:23:58,475 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/data/ee1d276c1/40d2e0d80fdb4180ad8ee0a94bf1e498/FLAG728280265 [2021-10-28 09:23:59,096 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:23:59,096 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/sv-benchmarks/c/bitvector/byte_add-1.i [2021-10-28 09:23:59,106 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/data/ee1d276c1/40d2e0d80fdb4180ad8ee0a94bf1e498/FLAG728280265 [2021-10-28 09:23:59,444 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/data/ee1d276c1/40d2e0d80fdb4180ad8ee0a94bf1e498 [2021-10-28 09:23:59,453 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:23:59,455 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:23:59,457 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:23:59,458 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:23:59,462 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:23:59,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:23:59" (1/1) ... [2021-10-28 09:23:59,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c31b8ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:23:59, skipping insertion in model container [2021-10-28 09:23:59,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:23:59" (1/1) ... [2021-10-28 09:23:59,475 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:23:59,504 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:23:59,724 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/sv-benchmarks/c/bitvector/byte_add-1.i[861,874] [2021-10-28 09:23:59,780 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:23:59,791 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:23:59,806 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/sv-benchmarks/c/bitvector/byte_add-1.i[861,874] [2021-10-28 09:23:59,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:23:59,853 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:23:59,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:23:59 WrapperNode [2021-10-28 09:23:59,853 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:23:59,855 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:23:59,855 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:23:59,855 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:23:59,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:23:59" (1/1) ... [2021-10-28 09:23:59,875 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:23:59" (1/1) ... [2021-10-28 09:23:59,907 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:23:59,908 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:23:59,908 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:23:59,908 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:23:59,918 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:23:59" (1/1) ... [2021-10-28 09:23:59,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:23:59" (1/1) ... [2021-10-28 09:23:59,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:23:59" (1/1) ... [2021-10-28 09:23:59,922 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:23:59" (1/1) ... [2021-10-28 09:23:59,931 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:23:59" (1/1) ... [2021-10-28 09:23:59,939 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:23:59" (1/1) ... [2021-10-28 09:23:59,941 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:23:59" (1/1) ... [2021-10-28 09:23:59,945 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:23:59,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:23:59,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:23:59,946 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:23:59,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:23:59" (1/1) ... [2021-10-28 09:23:59,957 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:23:59,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:23:59,995 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:23:59,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:24:00,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:24:00,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:24:00,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:24:00,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:24:00,422 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:24:00,422 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-28 09:24:00,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:24:00 BoogieIcfgContainer [2021-10-28 09:24:00,425 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:24:00,426 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:24:00,427 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:24:00,433 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:24:00,434 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:24:00,434 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:23:59" (1/3) ... [2021-10-28 09:24:00,447 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@331a5fbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:24:00, skipping insertion in model container [2021-10-28 09:24:00,448 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:24:00,448 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:23:59" (2/3) ... [2021-10-28 09:24:00,448 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@331a5fbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:24:00, skipping insertion in model container [2021-10-28 09:24:00,448 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:24:00,449 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:24:00" (3/3) ... [2021-10-28 09:24:00,450 INFO L389 chiAutomizerObserver]: Analyzing ICFG byte_add-1.i [2021-10-28 09:24:00,534 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:24:00,534 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:24:00,534 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:24:00,535 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:24:00,535 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:24:00,535 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:24:00,535 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:24:00,535 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:24:00,558 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 41 states, 40 states have (on average 1.75) internal successors, (70), 40 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:00,587 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 23 [2021-10-28 09:24:00,588 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:24:00,588 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:24:00,598 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 09:24:00,604 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:00,604 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:24:00,605 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 41 states, 40 states have (on average 1.75) internal successors, (70), 40 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:00,619 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 23 [2021-10-28 09:24:00,621 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:24:00,621 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:24:00,623 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 09:24:00,623 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:00,633 INFO L791 eck$LassoCheckResult]: Stem: 21#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 11#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~0 := main_#t~nondet4;havoc main_#t~nondet4;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 6#L51true assume !(0 == mp_add_~a3~0 % 256); 14#L51-1true mp_add_~nb~0 := 4; 7#L61true assume !(0 == mp_add_~b3~0 % 256); 17#L61-1true mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 12#L72-2true [2021-10-28 09:24:00,634 INFO L793 eck$LassoCheckResult]: Loop: 12#L72-2true assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 34#L75true assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 36#L75-1true assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 27#L81true assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 13#L87-1true assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 9#L91-1true assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 10#L92-1true assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 19#L93-1true assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 16#L94-1true mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 12#L72-2true [2021-10-28 09:24:00,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:00,657 INFO L85 PathProgramCache]: Analyzing trace with hash 889938151, now seen corresponding path program 1 times [2021-10-28 09:24:00,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:00,669 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906090287] [2021-10-28 09:24:00,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:00,671 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:00,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:00,832 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:24:00,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:00,907 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:24:00,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:00,912 INFO L85 PathProgramCache]: Analyzing trace with hash 318197182, now seen corresponding path program 1 times [2021-10-28 09:24:00,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:00,913 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678888774] [2021-10-28 09:24:00,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:00,914 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:00,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:24:01,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:24:01,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:24:01,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678888774] [2021-10-28 09:24:01,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678888774] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:24:01,082 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:24:01,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:24:01,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323530681] [2021-10-28 09:24:01,089 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:24:01,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:24:01,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:24:01,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:24:01,112 INFO L87 Difference]: Start difference. First operand has 41 states, 40 states have (on average 1.75) internal successors, (70), 40 states have internal predecessors, (70), 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 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:01,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:24:01,448 INFO L93 Difference]: Finished difference Result 64 states and 94 transitions. [2021-10-28 09:24:01,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:24:01,451 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 94 transitions. [2021-10-28 09:24:01,457 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2021-10-28 09:24:01,464 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 56 states and 86 transitions. [2021-10-28 09:24:01,465 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2021-10-28 09:24:01,466 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 56 [2021-10-28 09:24:01,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 86 transitions. [2021-10-28 09:24:01,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:24:01,468 INFO L681 BuchiCegarLoop]: Abstraction has 56 states and 86 transitions. [2021-10-28 09:24:01,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 86 transitions. [2021-10-28 09:24:01,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2021-10-28 09:24:01,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 54 states have (on average 1.5555555555555556) internal successors, (84), 53 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:01,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 84 transitions. [2021-10-28 09:24:01,510 INFO L704 BuchiCegarLoop]: Abstraction has 54 states and 84 transitions. [2021-10-28 09:24:01,510 INFO L587 BuchiCegarLoop]: Abstraction has 54 states and 84 transitions. [2021-10-28 09:24:01,510 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 09:24:01,511 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 84 transitions. [2021-10-28 09:24:01,518 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-10-28 09:24:01,518 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:24:01,519 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:24:01,520 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:01,520 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:01,520 INFO L791 eck$LassoCheckResult]: Stem: 134#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 124#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~0 := main_#t~nondet4;havoc main_#t~nondet4;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 114#L51 assume !(0 == mp_add_~a3~0 % 256); 115#L51-1 mp_add_~nb~0 := 4; 117#L61 assume !(0 == mp_add_~b3~0 % 256); 118#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 125#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 126#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 146#L75-1 [2021-10-28 09:24:01,523 INFO L793 eck$LassoCheckResult]: Loop: 146#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 140#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 128#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 121#L91-1 assume !(1 == mp_add_~i~0 % 256); 122#L92-1 assume !(2 == mp_add_~i~0 % 256); 123#L93-1 assume !(3 == mp_add_~i~0 % 256); 131#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 132#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 158#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 159#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 151#L76-2 assume !(1 == mp_add_~i~0 % 256); 160#L77-1 assume !(2 == mp_add_~i~0 % 256); 145#L78-1 assume !(3 == mp_add_~i~0 % 256); 146#L75-1 [2021-10-28 09:24:01,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:01,525 INFO L85 PathProgramCache]: Analyzing trace with hash 532072804, now seen corresponding path program 1 times [2021-10-28 09:24:01,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:01,526 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53233779] [2021-10-28 09:24:01,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:01,528 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:01,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:24:01,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:24:01,891 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:24:01,892 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53233779] [2021-10-28 09:24:01,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53233779] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:24:01,893 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:24:01,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:24:01,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481198930] [2021-10-28 09:24:01,895 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:24:01,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:01,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1939143242, now seen corresponding path program 1 times [2021-10-28 09:24:01,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:01,898 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675942930] [2021-10-28 09:24:01,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:01,901 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:01,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:24:02,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:24:02,069 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:24:02,069 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675942930] [2021-10-28 09:24:02,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675942930] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:24:02,070 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:24:02,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:24:02,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211257351] [2021-10-28 09:24:02,073 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:24:02,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:24:02,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:24:02,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:24:02,077 INFO L87 Difference]: Start difference. First operand 54 states and 84 transitions. cyclomatic complexity: 32 Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:02,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:24:02,506 INFO L93 Difference]: Finished difference Result 120 states and 177 transitions. [2021-10-28 09:24:02,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:24:02,508 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 120 states and 177 transitions. [2021-10-28 09:24:02,513 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 78 [2021-10-28 09:24:02,516 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 120 states to 120 states and 177 transitions. [2021-10-28 09:24:02,516 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 120 [2021-10-28 09:24:02,517 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 120 [2021-10-28 09:24:02,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 120 states and 177 transitions. [2021-10-28 09:24:02,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:24:02,527 INFO L681 BuchiCegarLoop]: Abstraction has 120 states and 177 transitions. [2021-10-28 09:24:02,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states and 177 transitions. [2021-10-28 09:24:02,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 61. [2021-10-28 09:24:02,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 61 states have (on average 1.540983606557377) internal successors, (94), 60 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:02,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 94 transitions. [2021-10-28 09:24:02,538 INFO L704 BuchiCegarLoop]: Abstraction has 61 states and 94 transitions. [2021-10-28 09:24:02,538 INFO L587 BuchiCegarLoop]: Abstraction has 61 states and 94 transitions. [2021-10-28 09:24:02,538 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 09:24:02,538 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 61 states and 94 transitions. [2021-10-28 09:24:02,540 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-10-28 09:24:02,540 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:24:02,541 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:24:02,542 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:02,542 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:02,542 INFO L791 eck$LassoCheckResult]: Stem: 321#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 310#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~0 := main_#t~nondet4;havoc main_#t~nondet4;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 303#L51 assume !(0 == mp_add_~a3~0 % 256); 304#L51-1 mp_add_~nb~0 := 4; 345#L61 assume !(0 == mp_add_~b3~0 % 256); 319#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 311#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 312#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 336#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 322#L76-2 [2021-10-28 09:24:02,543 INFO L793 eck$LassoCheckResult]: Loop: 322#L76-2 assume !(1 == mp_add_~i~0 % 256); 323#L77-1 assume !(2 == mp_add_~i~0 % 256); 324#L78-1 assume !(3 == mp_add_~i~0 % 256); 330#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 327#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 313#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 300#L91-1 assume !(1 == mp_add_~i~0 % 256); 301#L92-1 assume !(2 == mp_add_~i~0 % 256); 302#L93-1 assume !(3 == mp_add_~i~0 % 256); 317#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 318#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 346#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 357#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 322#L76-2 [2021-10-28 09:24:02,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:02,544 INFO L85 PathProgramCache]: Analyzing trace with hash -685613011, now seen corresponding path program 1 times [2021-10-28 09:24:02,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:02,544 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765330960] [2021-10-28 09:24:02,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:02,545 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:02,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:02,580 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:24:02,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:02,618 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:24:02,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:02,619 INFO L85 PathProgramCache]: Analyzing trace with hash 119486142, now seen corresponding path program 2 times [2021-10-28 09:24:02,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:02,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010333237] [2021-10-28 09:24:02,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:02,620 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:02,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:24:02,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:24:02,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:24:02,718 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010333237] [2021-10-28 09:24:02,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010333237] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:24:02,719 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:24:02,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:24:02,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91354825] [2021-10-28 09:24:02,720 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:24:02,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:24:02,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:24:02,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:24:02,722 INFO L87 Difference]: Start difference. First operand 61 states and 94 transitions. cyclomatic complexity: 35 Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:02,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:24:02,983 INFO L93 Difference]: Finished difference Result 86 states and 135 transitions. [2021-10-28 09:24:02,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:24:02,985 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 86 states and 135 transitions. [2021-10-28 09:24:02,988 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 64 [2021-10-28 09:24:02,990 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 86 states to 86 states and 135 transitions. [2021-10-28 09:24:02,990 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 86 [2021-10-28 09:24:02,990 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 86 [2021-10-28 09:24:02,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 86 states and 135 transitions. [2021-10-28 09:24:02,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:24:02,992 INFO L681 BuchiCegarLoop]: Abstraction has 86 states and 135 transitions. [2021-10-28 09:24:02,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states and 135 transitions. [2021-10-28 09:24:03,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 78. [2021-10-28 09:24:03,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 78 states have (on average 1.5512820512820513) internal successors, (121), 77 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:03,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 121 transitions. [2021-10-28 09:24:03,013 INFO L704 BuchiCegarLoop]: Abstraction has 78 states and 121 transitions. [2021-10-28 09:24:03,013 INFO L587 BuchiCegarLoop]: Abstraction has 78 states and 121 transitions. [2021-10-28 09:24:03,013 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 09:24:03,014 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states and 121 transitions. [2021-10-28 09:24:03,019 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 56 [2021-10-28 09:24:03,020 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:24:03,021 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:24:03,023 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:03,025 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:03,027 INFO L791 eck$LassoCheckResult]: Stem: 475#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 467#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~0 := main_#t~nondet4;havoc main_#t~nondet4;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 457#L51 assume !(0 == mp_add_~a3~0 % 256); 458#L51-1 mp_add_~nb~0 := 4; 460#L61 assume !(0 == mp_add_~b3~0 % 256); 461#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 499#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 498#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 495#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 476#L76-2 [2021-10-28 09:24:03,027 INFO L793 eck$LassoCheckResult]: Loop: 476#L76-2 assume !(1 == mp_add_~i~0 % 256); 477#L77-1 assume !(2 == mp_add_~i~0 % 256); 478#L78-1 assume !(3 == mp_add_~i~0 % 256); 504#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 482#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 468#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 454#L91-1 assume !(1 == mp_add_~i~0 % 256); 455#L92-1 assume !(2 == mp_add_~i~0 % 256); 456#L93-1 assume !(3 == mp_add_~i~0 % 256); 470#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 464#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 465#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 488#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 490#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 524#L87-1 assume !(0 == mp_add_~i~0 % 256); 522#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 520#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 519#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 518#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 511#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 509#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 510#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 476#L76-2 [2021-10-28 09:24:03,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:03,037 INFO L85 PathProgramCache]: Analyzing trace with hash -685613011, now seen corresponding path program 2 times [2021-10-28 09:24:03,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:03,038 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54293313] [2021-10-28 09:24:03,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:03,039 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:03,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:03,094 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:24:03,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:03,152 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:24:03,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:03,153 INFO L85 PathProgramCache]: Analyzing trace with hash 522403369, now seen corresponding path program 1 times [2021-10-28 09:24:03,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:03,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668933070] [2021-10-28 09:24:03,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:03,154 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:03,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:24:03,218 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 09:24:03,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:24:03,219 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668933070] [2021-10-28 09:24:03,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668933070] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:24:03,219 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:24:03,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:24:03,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189349424] [2021-10-28 09:24:03,220 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:24:03,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:24:03,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:24:03,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:24:03,221 INFO L87 Difference]: Start difference. First operand 78 states and 121 transitions. cyclomatic complexity: 45 Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:03,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:24:03,348 INFO L93 Difference]: Finished difference Result 103 states and 155 transitions. [2021-10-28 09:24:03,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:24:03,349 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 103 states and 155 transitions. [2021-10-28 09:24:03,351 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 81 [2021-10-28 09:24:03,353 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 103 states to 103 states and 155 transitions. [2021-10-28 09:24:03,353 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 103 [2021-10-28 09:24:03,354 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 103 [2021-10-28 09:24:03,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 103 states and 155 transitions. [2021-10-28 09:24:03,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:24:03,355 INFO L681 BuchiCegarLoop]: Abstraction has 103 states and 155 transitions. [2021-10-28 09:24:03,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states and 155 transitions. [2021-10-28 09:24:03,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 101. [2021-10-28 09:24:03,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 101 states have (on average 1.5148514851485149) internal successors, (153), 100 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:03,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 153 transitions. [2021-10-28 09:24:03,366 INFO L704 BuchiCegarLoop]: Abstraction has 101 states and 153 transitions. [2021-10-28 09:24:03,366 INFO L587 BuchiCegarLoop]: Abstraction has 101 states and 153 transitions. [2021-10-28 09:24:03,367 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 09:24:03,367 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 101 states and 153 transitions. [2021-10-28 09:24:03,368 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79 [2021-10-28 09:24:03,368 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:24:03,369 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:24:03,370 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:03,370 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:03,370 INFO L791 eck$LassoCheckResult]: Stem: 666#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 652#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~0 := main_#t~nondet4;havoc main_#t~nondet4;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 641#L51 assume !(0 == mp_add_~a3~0 % 256); 642#L51-1 mp_add_~nb~0 := 4; 704#L61 assume !(0 == mp_add_~b3~0 % 256); 662#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 653#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 654#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 680#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 667#L76-2 [2021-10-28 09:24:03,371 INFO L793 eck$LassoCheckResult]: Loop: 667#L76-2 assume !(1 == mp_add_~i~0 % 256); 668#L77-1 assume !(2 == mp_add_~i~0 % 256); 669#L78-1 assume !(3 == mp_add_~i~0 % 256); 677#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 682#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 701#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 700#L91-1 assume !(1 == mp_add_~i~0 % 256); 699#L92-1 assume !(2 == mp_add_~i~0 % 256); 698#L93-1 assume !(3 == mp_add_~i~0 % 256); 696#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 692#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 693#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 735#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 673#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 655#L87-1 assume !(0 == mp_add_~i~0 % 256); 656#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 649#L92-1 assume !(2 == mp_add_~i~0 % 256); 663#L93-1 assume !(3 == mp_add_~i~0 % 256); 660#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 661#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 694#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 722#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 667#L76-2 [2021-10-28 09:24:03,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:03,372 INFO L85 PathProgramCache]: Analyzing trace with hash -685613011, now seen corresponding path program 3 times [2021-10-28 09:24:03,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:03,372 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078193467] [2021-10-28 09:24:03,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:03,373 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:03,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:03,396 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:24:03,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:03,424 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:24:03,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:03,425 INFO L85 PathProgramCache]: Analyzing trace with hash 581508713, now seen corresponding path program 1 times [2021-10-28 09:24:03,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:03,426 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689672793] [2021-10-28 09:24:03,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:03,427 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:03,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:24:03,499 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:24:03,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:24:03,505 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689672793] [2021-10-28 09:24:03,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689672793] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:24:03,506 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:24:03,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:24:03,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3205555] [2021-10-28 09:24:03,509 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:24:03,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:24:03,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:24:03,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:24:03,512 INFO L87 Difference]: Start difference. First operand 101 states and 153 transitions. cyclomatic complexity: 54 Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:03,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:24:03,598 INFO L93 Difference]: Finished difference Result 169 states and 255 transitions. [2021-10-28 09:24:03,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:24:03,599 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 169 states and 255 transitions. [2021-10-28 09:24:03,602 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 147 [2021-10-28 09:24:03,605 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 169 states to 169 states and 255 transitions. [2021-10-28 09:24:03,606 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 169 [2021-10-28 09:24:03,607 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 169 [2021-10-28 09:24:03,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 169 states and 255 transitions. [2021-10-28 09:24:03,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:24:03,615 INFO L681 BuchiCegarLoop]: Abstraction has 169 states and 255 transitions. [2021-10-28 09:24:03,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states and 255 transitions. [2021-10-28 09:24:03,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 141. [2021-10-28 09:24:03,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 141 states have (on average 1.5390070921985815) internal successors, (217), 140 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:03,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 217 transitions. [2021-10-28 09:24:03,642 INFO L704 BuchiCegarLoop]: Abstraction has 141 states and 217 transitions. [2021-10-28 09:24:03,642 INFO L587 BuchiCegarLoop]: Abstraction has 141 states and 217 transitions. [2021-10-28 09:24:03,642 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 09:24:03,642 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 141 states and 217 transitions. [2021-10-28 09:24:03,643 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 119 [2021-10-28 09:24:03,644 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:24:03,644 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:24:03,647 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:03,647 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:03,648 INFO L791 eck$LassoCheckResult]: Stem: 940#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 930#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~0 := main_#t~nondet4;havoc main_#t~nondet4;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 921#L51 assume !(0 == mp_add_~a3~0 % 256); 922#L51-1 mp_add_~nb~0 := 4; 934#L61 assume !(0 == mp_add_~b3~0 % 256); 937#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 928#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 929#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 961#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 941#L76-2 [2021-10-28 09:24:03,648 INFO L793 eck$LassoCheckResult]: Loop: 941#L76-2 assume !(1 == mp_add_~i~0 % 256); 942#L77-1 assume !(2 == mp_add_~i~0 % 256); 1027#L78-1 assume !(3 == mp_add_~i~0 % 256); 1013#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 1005#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 931#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 918#L91-1 assume !(1 == mp_add_~i~0 % 256); 919#L92-1 assume !(2 == mp_add_~i~0 % 256); 920#L93-1 assume !(3 == mp_add_~i~0 % 256); 938#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 1046#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 1033#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 964#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 965#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 998#L87-1 assume !(0 == mp_add_~i~0 % 256); 994#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 992#L92-1 assume !(2 == mp_add_~i~0 % 256); 990#L93-1 assume !(3 == mp_add_~i~0 % 256); 987#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 983#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 984#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 1051#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 941#L76-2 [2021-10-28 09:24:03,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:03,649 INFO L85 PathProgramCache]: Analyzing trace with hash -685613011, now seen corresponding path program 4 times [2021-10-28 09:24:03,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:03,649 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791465828] [2021-10-28 09:24:03,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:03,650 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:03,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:03,683 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:24:03,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:03,707 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:24:03,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:03,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1261567083, now seen corresponding path program 1 times [2021-10-28 09:24:03,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:03,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943670065] [2021-10-28 09:24:03,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:03,709 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:03,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:24:03,791 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:24:03,791 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:24:03,792 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943670065] [2021-10-28 09:24:03,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943670065] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:24:03,792 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:24:03,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 09:24:03,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193809481] [2021-10-28 09:24:03,793 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:24:03,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:24:03,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:24:03,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:24:03,795 INFO L87 Difference]: Start difference. First operand 141 states and 217 transitions. cyclomatic complexity: 78 Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:04,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:24:04,144 INFO L93 Difference]: Finished difference Result 302 states and 450 transitions. [2021-10-28 09:24:04,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:24:04,145 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 302 states and 450 transitions. [2021-10-28 09:24:04,149 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 255 [2021-10-28 09:24:04,153 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 302 states to 302 states and 450 transitions. [2021-10-28 09:24:04,155 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 302 [2021-10-28 09:24:04,156 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 302 [2021-10-28 09:24:04,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 302 states and 450 transitions. [2021-10-28 09:24:04,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:24:04,158 INFO L681 BuchiCegarLoop]: Abstraction has 302 states and 450 transitions. [2021-10-28 09:24:04,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states and 450 transitions. [2021-10-28 09:24:04,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 225. [2021-10-28 09:24:04,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 225 states have (on average 1.5155555555555555) internal successors, (341), 224 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:04,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 341 transitions. [2021-10-28 09:24:04,195 INFO L704 BuchiCegarLoop]: Abstraction has 225 states and 341 transitions. [2021-10-28 09:24:04,195 INFO L587 BuchiCegarLoop]: Abstraction has 225 states and 341 transitions. [2021-10-28 09:24:04,195 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-28 09:24:04,195 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 225 states and 341 transitions. [2021-10-28 09:24:04,198 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 198 [2021-10-28 09:24:04,198 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:24:04,198 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:24:04,201 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:04,202 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:04,203 INFO L791 eck$LassoCheckResult]: Stem: 1397#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 1383#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~0 := main_#t~nondet4;havoc main_#t~nondet4;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 1372#L51 assume !(0 == mp_add_~a3~0 % 256); 1373#L51-1 mp_add_~nb~0 := 4; 1375#L61 assume !(0 == mp_add_~b3~0 % 256); 1376#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 1431#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 1425#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 1422#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 1398#L76-2 [2021-10-28 09:24:04,203 INFO L793 eck$LassoCheckResult]: Loop: 1398#L76-2 assume !(1 == mp_add_~i~0 % 256); 1399#L77-1 assume !(2 == mp_add_~i~0 % 256); 1400#L78-1 assume !(3 == mp_add_~i~0 % 256); 1408#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 1544#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 1441#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 1440#L91-1 assume !(1 == mp_add_~i~0 % 256); 1439#L92-1 assume !(2 == mp_add_~i~0 % 256); 1438#L93-1 assume !(3 == mp_add_~i~0 % 256); 1435#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 1432#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 1426#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 1427#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 1403#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 1404#L87-1 assume !(0 == mp_add_~i~0 % 256); 1521#L91-1 assume !(1 == mp_add_~i~0 % 256); 1468#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 1464#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 1436#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 1437#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 1428#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 1429#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 1398#L76-2 [2021-10-28 09:24:04,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:04,204 INFO L85 PathProgramCache]: Analyzing trace with hash -685613011, now seen corresponding path program 5 times [2021-10-28 09:24:04,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:04,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255189488] [2021-10-28 09:24:04,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:04,213 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:04,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:04,252 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:24:04,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:04,293 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:24:04,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:04,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1317498195, now seen corresponding path program 1 times [2021-10-28 09:24:04,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:04,298 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700405237] [2021-10-28 09:24:04,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:04,299 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:04,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:24:04,344 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-28 09:24:04,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:24:04,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700405237] [2021-10-28 09:24:04,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700405237] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:24:04,346 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:24:04,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:24:04,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628569457] [2021-10-28 09:24:04,347 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:24:04,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:24:04,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:24:04,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:24:04,349 INFO L87 Difference]: Start difference. First operand 225 states and 341 transitions. cyclomatic complexity: 119 Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:04,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:24:04,468 INFO L93 Difference]: Finished difference Result 263 states and 400 transitions. [2021-10-28 09:24:04,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:24:04,469 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 263 states and 400 transitions. [2021-10-28 09:24:04,474 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 236 [2021-10-28 09:24:04,478 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 263 states to 263 states and 400 transitions. [2021-10-28 09:24:04,478 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 263 [2021-10-28 09:24:04,479 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 263 [2021-10-28 09:24:04,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 263 states and 400 transitions. [2021-10-28 09:24:04,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:24:04,480 INFO L681 BuchiCegarLoop]: Abstraction has 263 states and 400 transitions. [2021-10-28 09:24:04,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states and 400 transitions. [2021-10-28 09:24:04,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 257. [2021-10-28 09:24:04,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 257 states have (on average 1.5330739299610896) internal successors, (394), 256 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:04,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 394 transitions. [2021-10-28 09:24:04,491 INFO L704 BuchiCegarLoop]: Abstraction has 257 states and 394 transitions. [2021-10-28 09:24:04,492 INFO L587 BuchiCegarLoop]: Abstraction has 257 states and 394 transitions. [2021-10-28 09:24:04,492 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-28 09:24:04,492 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 257 states and 394 transitions. [2021-10-28 09:24:04,494 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 230 [2021-10-28 09:24:04,494 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:24:04,495 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:24:04,496 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:04,497 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:04,497 INFO L791 eck$LassoCheckResult]: Stem: 1891#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 1877#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~0 := main_#t~nondet4;havoc main_#t~nondet4;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 1866#L51 assume !(0 == mp_add_~a3~0 % 256); 1867#L51-1 mp_add_~nb~0 := 4; 1944#L61 assume !(0 == mp_add_~b3~0 % 256); 1886#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 1887#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 1912#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 1913#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 1892#L76-2 [2021-10-28 09:24:04,497 INFO L793 eck$LassoCheckResult]: Loop: 1892#L76-2 assume !(1 == mp_add_~i~0 % 256); 1893#L77-1 assume !(2 == mp_add_~i~0 % 256); 1894#L78-1 assume !(3 == mp_add_~i~0 % 256); 2044#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 2042#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 2019#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 2015#L91-1 assume !(1 == mp_add_~i~0 % 256); 2014#L92-1 assume !(2 == mp_add_~i~0 % 256); 2013#L93-1 assume !(3 == mp_add_~i~0 % 256); 2012#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 2010#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 2011#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 2084#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 1910#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 2004#L87-1 assume !(0 == mp_add_~i~0 % 256); 2003#L91-1 assume !(1 == mp_add_~i~0 % 256); 1953#L92-1 assume !(2 == mp_add_~i~0 % 256); 1946#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 1938#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 1936#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 1937#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 2113#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 1892#L76-2 [2021-10-28 09:24:04,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:04,498 INFO L85 PathProgramCache]: Analyzing trace with hash -685613011, now seen corresponding path program 6 times [2021-10-28 09:24:04,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:04,499 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207829790] [2021-10-28 09:24:04,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:04,499 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:04,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:04,546 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:24:04,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:04,576 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:24:04,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:04,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1260239893, now seen corresponding path program 1 times [2021-10-28 09:24:04,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:04,584 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103884448] [2021-10-28 09:24:04,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:04,586 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:04,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:24:04,790 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:24:04,791 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:24:04,791 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103884448] [2021-10-28 09:24:04,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103884448] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:24:04,792 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2127723849] [2021-10-28 09:24:04,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:04,792 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:24:04,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:04,797 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:24:04,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 09:24:04,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:24:04,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 09:24:04,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:24:05,280 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:24:05,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2127723849] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:24:05,281 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:24:05,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 6 [2021-10-28 09:24:05,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561468569] [2021-10-28 09:24:05,282 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:24:05,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:24:05,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:24:05,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:24:05,283 INFO L87 Difference]: Start difference. First operand 257 states and 394 transitions. cyclomatic complexity: 140 Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:05,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:24:05,613 INFO L93 Difference]: Finished difference Result 325 states and 448 transitions. [2021-10-28 09:24:05,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:24:05,614 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 325 states and 448 transitions. [2021-10-28 09:24:05,618 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 252 [2021-10-28 09:24:05,623 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 325 states to 325 states and 448 transitions. [2021-10-28 09:24:05,623 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 325 [2021-10-28 09:24:05,624 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 325 [2021-10-28 09:24:05,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 325 states and 448 transitions. [2021-10-28 09:24:05,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:24:05,625 INFO L681 BuchiCegarLoop]: Abstraction has 325 states and 448 transitions. [2021-10-28 09:24:05,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states and 448 transitions. [2021-10-28 09:24:05,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 241. [2021-10-28 09:24:05,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 241 states have (on average 1.4771784232365146) internal successors, (356), 240 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:05,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 356 transitions. [2021-10-28 09:24:05,642 INFO L704 BuchiCegarLoop]: Abstraction has 241 states and 356 transitions. [2021-10-28 09:24:05,643 INFO L587 BuchiCegarLoop]: Abstraction has 241 states and 356 transitions. [2021-10-28 09:24:05,643 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-28 09:24:05,644 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 241 states and 356 transitions. [2021-10-28 09:24:05,646 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 208 [2021-10-28 09:24:05,647 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:24:05,647 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:24:05,651 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:05,651 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:05,651 INFO L791 eck$LassoCheckResult]: Stem: 2547#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 2533#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~0 := main_#t~nondet4;havoc main_#t~nondet4;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 2523#L51 assume !(0 == mp_add_~a3~0 % 256); 2524#L51-1 mp_add_~nb~0 := 4; 2601#L61 assume !(0 == mp_add_~b3~0 % 256); 2598#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 2578#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 2576#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 2572#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 2548#L76-2 [2021-10-28 09:24:05,652 INFO L793 eck$LassoCheckResult]: Loop: 2548#L76-2 assume !(1 == mp_add_~i~0 % 256); 2549#L77-1 assume !(2 == mp_add_~i~0 % 256); 2658#L78-1 assume !(3 == mp_add_~i~0 % 256); 2656#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 2654#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 2653#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 2621#L91-1 assume !(1 == mp_add_~i~0 % 256); 2648#L92-1 assume !(2 == mp_add_~i~0 % 256); 2582#L93-1 assume !(3 == mp_add_~i~0 % 256); 2579#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 2580#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 2597#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 2567#L76 assume !(0 == mp_add_~i~0 % 256); 2568#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 2550#L77-1 assume !(2 == mp_add_~i~0 % 256); 2551#L78-1 assume !(3 == mp_add_~i~0 % 256); 2559#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 2663#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 2660#L87-1 assume !(0 == mp_add_~i~0 % 256); 2614#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 2612#L92-1 assume !(2 == mp_add_~i~0 % 256); 2607#L93-1 assume !(3 == mp_add_~i~0 % 256); 2541#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 2542#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 2569#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 2570#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 2548#L76-2 [2021-10-28 09:24:05,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:05,653 INFO L85 PathProgramCache]: Analyzing trace with hash -685613011, now seen corresponding path program 7 times [2021-10-28 09:24:05,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:05,654 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448027309] [2021-10-28 09:24:05,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:05,654 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:05,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:05,690 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:24:05,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:05,727 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:24:05,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:05,734 INFO L85 PathProgramCache]: Analyzing trace with hash -706390055, now seen corresponding path program 1 times [2021-10-28 09:24:05,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:05,739 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016857013] [2021-10-28 09:24:05,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:05,740 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:05,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:24:05,812 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 09:24:05,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:24:05,813 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016857013] [2021-10-28 09:24:05,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016857013] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:24:05,814 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:24:05,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:24:05,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731811027] [2021-10-28 09:24:05,815 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:24:05,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:24:05,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:24:05,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:24:05,818 INFO L87 Difference]: Start difference. First operand 241 states and 356 transitions. cyclomatic complexity: 118 Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:06,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:24:06,056 INFO L93 Difference]: Finished difference Result 370 states and 539 transitions. [2021-10-28 09:24:06,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:24:06,057 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 370 states and 539 transitions. [2021-10-28 09:24:06,062 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 331 [2021-10-28 09:24:06,066 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 370 states to 370 states and 539 transitions. [2021-10-28 09:24:06,067 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 370 [2021-10-28 09:24:06,067 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 370 [2021-10-28 09:24:06,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 370 states and 539 transitions. [2021-10-28 09:24:06,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:24:06,069 INFO L681 BuchiCegarLoop]: Abstraction has 370 states and 539 transitions. [2021-10-28 09:24:06,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states and 539 transitions. [2021-10-28 09:24:06,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 269. [2021-10-28 09:24:06,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 269 states have (on average 1.5018587360594795) internal successors, (404), 268 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:06,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 404 transitions. [2021-10-28 09:24:06,081 INFO L704 BuchiCegarLoop]: Abstraction has 269 states and 404 transitions. [2021-10-28 09:24:06,081 INFO L587 BuchiCegarLoop]: Abstraction has 269 states and 404 transitions. [2021-10-28 09:24:06,081 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-28 09:24:06,081 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 269 states and 404 transitions. [2021-10-28 09:24:06,084 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 245 [2021-10-28 09:24:06,084 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:24:06,084 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:24:06,090 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:06,090 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:06,092 INFO L791 eck$LassoCheckResult]: Stem: 3165#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 3154#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~0 := main_#t~nondet4;havoc main_#t~nondet4;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 3147#L51 assume !(0 == mp_add_~a3~0 % 256); 3148#L51-1 mp_add_~nb~0 := 4; 3150#L61 assume !(0 == mp_add_~b3~0 % 256); 3151#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 3163#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 3194#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 3189#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 3166#L76-2 [2021-10-28 09:24:06,093 INFO L793 eck$LassoCheckResult]: Loop: 3166#L76-2 assume !(1 == mp_add_~i~0 % 256); 3167#L77-1 assume !(2 == mp_add_~i~0 % 256); 3168#L78-1 assume !(3 == mp_add_~i~0 % 256); 3178#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 3334#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 3232#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 3228#L91-1 assume !(1 == mp_add_~i~0 % 256); 3221#L92-1 assume !(2 == mp_add_~i~0 % 256); 3219#L93-1 assume !(3 == mp_add_~i~0 % 256); 3220#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 3399#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 3315#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 3316#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 3368#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 3366#L87-1 assume !(0 == mp_add_~i~0 % 256); 3351#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 3217#L92-1 assume !(2 == mp_add_~i~0 % 256); 3350#L93-1 assume !(3 == mp_add_~i~0 % 256); 3349#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 3348#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 3347#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 3291#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 3342#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 3297#L87-1 assume !(0 == mp_add_~i~0 % 256); 3296#L91-1 assume !(1 == mp_add_~i~0 % 256); 3211#L92-1 assume !(2 == mp_add_~i~0 % 256); 3207#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 3208#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 3201#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 3202#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 3190#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 3166#L76-2 [2021-10-28 09:24:06,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:06,096 INFO L85 PathProgramCache]: Analyzing trace with hash -685613011, now seen corresponding path program 8 times [2021-10-28 09:24:06,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:06,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236156523] [2021-10-28 09:24:06,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:06,096 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:06,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:06,111 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:24:06,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:06,134 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:24:06,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:06,147 INFO L85 PathProgramCache]: Analyzing trace with hash 2126418142, now seen corresponding path program 1 times [2021-10-28 09:24:06,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:06,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623265286] [2021-10-28 09:24:06,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:06,148 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:06,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:24:06,224 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:24:06,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:24:06,225 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623265286] [2021-10-28 09:24:06,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623265286] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:24:06,225 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191034767] [2021-10-28 09:24:06,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:06,226 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:24:06,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:06,228 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:24:06,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 09:24:06,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:24:06,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:24:06,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:24:06,455 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 09:24:06,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191034767] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:24:06,456 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:24:06,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2021-10-28 09:24:06,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727271650] [2021-10-28 09:24:06,457 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:24:06,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:24:06,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:24:06,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:24:06,458 INFO L87 Difference]: Start difference. First operand 269 states and 404 transitions. cyclomatic complexity: 137 Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:07,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:24:07,418 INFO L93 Difference]: Finished difference Result 342 states and 463 transitions. [2021-10-28 09:24:07,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 09:24:07,419 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 342 states and 463 transitions. [2021-10-28 09:24:07,422 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 318 [2021-10-28 09:24:07,427 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 342 states to 342 states and 463 transitions. [2021-10-28 09:24:07,427 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 342 [2021-10-28 09:24:07,428 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 342 [2021-10-28 09:24:07,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 342 states and 463 transitions. [2021-10-28 09:24:07,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:24:07,429 INFO L681 BuchiCegarLoop]: Abstraction has 342 states and 463 transitions. [2021-10-28 09:24:07,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states and 463 transitions. [2021-10-28 09:24:07,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 222. [2021-10-28 09:24:07,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 222 states have (on average 1.4189189189189189) internal successors, (315), 221 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:07,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 315 transitions. [2021-10-28 09:24:07,437 INFO L704 BuchiCegarLoop]: Abstraction has 222 states and 315 transitions. [2021-10-28 09:24:07,438 INFO L587 BuchiCegarLoop]: Abstraction has 222 states and 315 transitions. [2021-10-28 09:24:07,438 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-28 09:24:07,438 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 222 states and 315 transitions. [2021-10-28 09:24:07,440 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 198 [2021-10-28 09:24:07,440 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:24:07,440 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:24:07,441 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:07,442 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:07,442 INFO L791 eck$LassoCheckResult]: Stem: 3916#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 3903#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~0 := main_#t~nondet4;havoc main_#t~nondet4;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 3894#L51 assume !(0 == mp_add_~a3~0 % 256); 3895#L51-1 mp_add_~nb~0 := 4; 3965#L61 assume !(0 == mp_add_~b3~0 % 256); 3911#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 3912#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 3983#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 3979#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 3980#L76-2 [2021-10-28 09:24:07,449 INFO L793 eck$LassoCheckResult]: Loop: 3980#L76-2 assume !(1 == mp_add_~i~0 % 256); 4095#L77-1 assume !(2 == mp_add_~i~0 % 256); 4094#L78-1 assume !(3 == mp_add_~i~0 % 256); 4091#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 4084#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 4059#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 3975#L91-1 assume !(1 == mp_add_~i~0 % 256); 3976#L92-1 assume !(2 == mp_add_~i~0 % 256); 3969#L93-1 assume !(3 == mp_add_~i~0 % 256); 3970#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 4027#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 4028#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 4066#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 4065#L82 assume !(0 == mp_add_~i~0 % 256); 4064#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 4049#L83-1 assume !(2 == mp_add_~i~0 % 256); 4063#L84-1 assume !(3 == mp_add_~i~0 % 256); 4062#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 4060#L87-1 assume !(0 == mp_add_~i~0 % 256); 4039#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 4040#L92-1 assume !(2 == mp_add_~i~0 % 256); 4035#L93-1 assume !(3 == mp_add_~i~0 % 256); 4036#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 3901#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 3902#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 3933#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 4105#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 4097#L87-1 assume !(0 == mp_add_~i~0 % 256); 3891#L91-1 assume !(1 == mp_add_~i~0 % 256); 3892#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 3893#L93-1 assume !(3 == mp_add_~i~0 % 256); 3913#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 3945#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 3946#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 3984#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 3980#L76-2 [2021-10-28 09:24:07,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:07,450 INFO L85 PathProgramCache]: Analyzing trace with hash -685613011, now seen corresponding path program 9 times [2021-10-28 09:24:07,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:07,451 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338562748] [2021-10-28 09:24:07,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:07,451 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:07,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:07,478 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:24:07,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:07,512 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:24:07,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:07,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1213831786, now seen corresponding path program 1 times [2021-10-28 09:24:07,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:07,515 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971211421] [2021-10-28 09:24:07,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:07,515 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:07,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:24:07,568 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-28 09:24:07,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:24:07,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971211421] [2021-10-28 09:24:07,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971211421] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:24:07,569 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:24:07,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:24:07,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74046993] [2021-10-28 09:24:07,573 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:24:07,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:24:07,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:24:07,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:24:07,574 INFO L87 Difference]: Start difference. First operand 222 states and 315 transitions. cyclomatic complexity: 95 Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:07,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:24:07,716 INFO L93 Difference]: Finished difference Result 422 states and 581 transitions. [2021-10-28 09:24:07,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:24:07,717 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 422 states and 581 transitions. [2021-10-28 09:24:07,724 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 360 [2021-10-28 09:24:07,731 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 422 states to 417 states and 574 transitions. [2021-10-28 09:24:07,731 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 417 [2021-10-28 09:24:07,732 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 417 [2021-10-28 09:24:07,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 417 states and 574 transitions. [2021-10-28 09:24:07,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:24:07,733 INFO L681 BuchiCegarLoop]: Abstraction has 417 states and 574 transitions. [2021-10-28 09:24:07,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states and 574 transitions. [2021-10-28 09:24:07,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 338. [2021-10-28 09:24:07,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 338 states have (on average 1.3994082840236686) internal successors, (473), 337 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:07,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 473 transitions. [2021-10-28 09:24:07,744 INFO L704 BuchiCegarLoop]: Abstraction has 338 states and 473 transitions. [2021-10-28 09:24:07,744 INFO L587 BuchiCegarLoop]: Abstraction has 338 states and 473 transitions. [2021-10-28 09:24:07,744 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-10-28 09:24:07,744 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 338 states and 473 transitions. [2021-10-28 09:24:07,747 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 301 [2021-10-28 09:24:07,747 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:24:07,748 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:24:07,748 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:07,749 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:07,749 INFO L791 eck$LassoCheckResult]: Stem: 4564#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 4552#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~0 := main_#t~nondet4;havoc main_#t~nondet4;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 4542#L51 assume !(0 == mp_add_~a3~0 % 256); 4543#L51-1 mp_add_~nb~0 := 4; 4556#L61 assume !(0 == mp_add_~b3~0 % 256); 4561#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 4553#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 4554#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 4580#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 4565#L76-2 [2021-10-28 09:24:07,749 INFO L793 eck$LassoCheckResult]: Loop: 4565#L76-2 assume !(1 == mp_add_~i~0 % 256); 4566#L77-1 assume !(2 == mp_add_~i~0 % 256); 4567#L78-1 assume !(3 == mp_add_~i~0 % 256); 4575#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 4858#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 4637#L82-2 assume !(1 == mp_add_~i~0 % 256); 4857#L83-1 assume !(2 == mp_add_~i~0 % 256); 4856#L84-1 assume !(3 == mp_add_~i~0 % 256); 4855#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 4853#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 4783#L91-1 assume !(1 == mp_add_~i~0 % 256); 4851#L92-1 assume !(2 == mp_add_~i~0 % 256); 4849#L93-1 assume !(3 == mp_add_~i~0 % 256); 4847#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 4844#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 4845#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 4841#L76 assume !(0 == mp_add_~i~0 % 256); 4840#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 4650#L77-1 assume !(2 == mp_add_~i~0 % 256); 4839#L78-1 assume !(3 == mp_add_~i~0 % 256); 4838#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 4836#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 4834#L87-1 assume !(0 == mp_add_~i~0 % 256); 4827#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 4748#L92-1 assume !(2 == mp_add_~i~0 % 256); 4807#L93-1 assume !(3 == mp_add_~i~0 % 256); 4774#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 4770#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 4766#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 4753#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 4625#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 4624#L87-1 assume !(0 == mp_add_~i~0 % 256); 4623#L91-1 assume !(1 == mp_add_~i~0 % 256); 4601#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 4598#L93-1 assume !(3 == mp_add_~i~0 % 256); 4597#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 4592#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 4593#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 4806#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 4565#L76-2 [2021-10-28 09:24:07,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:07,750 INFO L85 PathProgramCache]: Analyzing trace with hash -685613011, now seen corresponding path program 10 times [2021-10-28 09:24:07,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:07,751 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714001726] [2021-10-28 09:24:07,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:07,751 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:07,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:07,782 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:24:07,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:07,810 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:24:07,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:07,812 INFO L85 PathProgramCache]: Analyzing trace with hash 50062784, now seen corresponding path program 1 times [2021-10-28 09:24:07,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:07,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048373586] [2021-10-28 09:24:07,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:07,813 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:07,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:24:07,938 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 5 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:24:07,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:24:07,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048373586] [2021-10-28 09:24:07,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048373586] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:24:07,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399156300] [2021-10-28 09:24:07,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:07,941 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:24:07,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:07,985 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:24:08,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-28 09:24:08,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:24:08,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 09:24:08,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:24:08,396 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-10-28 09:24:08,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399156300] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:24:08,397 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:24:08,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2021-10-28 09:24:08,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143888781] [2021-10-28 09:24:08,400 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:24:08,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:24:08,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:24:08,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:24:08,402 INFO L87 Difference]: Start difference. First operand 338 states and 473 transitions. cyclomatic complexity: 138 Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:08,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:24:08,847 INFO L93 Difference]: Finished difference Result 434 states and 559 transitions. [2021-10-28 09:24:08,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:24:08,848 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 434 states and 559 transitions. [2021-10-28 09:24:08,853 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 397 [2021-10-28 09:24:08,858 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 434 states to 434 states and 559 transitions. [2021-10-28 09:24:08,859 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 434 [2021-10-28 09:24:08,859 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 434 [2021-10-28 09:24:08,860 INFO L73 IsDeterministic]: Start isDeterministic. Operand 434 states and 559 transitions. [2021-10-28 09:24:08,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:24:08,861 INFO L681 BuchiCegarLoop]: Abstraction has 434 states and 559 transitions. [2021-10-28 09:24:08,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states and 559 transitions. [2021-10-28 09:24:08,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 362. [2021-10-28 09:24:08,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 362 states have (on average 1.3259668508287292) internal successors, (480), 361 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:08,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 480 transitions. [2021-10-28 09:24:08,874 INFO L704 BuchiCegarLoop]: Abstraction has 362 states and 480 transitions. [2021-10-28 09:24:08,874 INFO L587 BuchiCegarLoop]: Abstraction has 362 states and 480 transitions. [2021-10-28 09:24:08,875 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-10-28 09:24:08,875 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 362 states and 480 transitions. [2021-10-28 09:24:08,878 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 325 [2021-10-28 09:24:08,878 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:24:08,879 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:24:08,880 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:08,880 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:08,882 INFO L791 eck$LassoCheckResult]: Stem: 5462#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 5451#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~0 := main_#t~nondet4;havoc main_#t~nondet4;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 5442#L51 assume !(0 == mp_add_~a3~0 % 256); 5443#L51-1 mp_add_~nb~0 := 4; 5456#L61 assume !(0 == mp_add_~b3~0 % 256); 5458#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 5459#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 5594#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 5569#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 5567#L76-2 [2021-10-28 09:24:08,883 INFO L793 eck$LassoCheckResult]: Loop: 5567#L76-2 assume !(1 == mp_add_~i~0 % 256); 5568#L77-1 assume !(2 == mp_add_~i~0 % 256); 5559#L78-1 assume !(3 == mp_add_~i~0 % 256); 5560#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 5689#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 5561#L82-2 assume !(1 == mp_add_~i~0 % 256); 5562#L83-1 assume !(2 == mp_add_~i~0 % 256); 5554#L84-1 assume !(3 == mp_add_~i~0 % 256); 5555#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 5760#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 5591#L91-1 assume !(1 == mp_add_~i~0 % 256); 5592#L92-1 assume !(2 == mp_add_~i~0 % 256); 5587#L93-1 assume !(3 == mp_add_~i~0 % 256); 5588#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 5583#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 5584#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 5580#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 5770#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 5769#L87-1 assume !(0 == mp_add_~i~0 % 256); 5768#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 5767#L92-1 assume !(2 == mp_add_~i~0 % 256); 5766#L93-1 assume !(3 == mp_add_~i~0 % 256); 5765#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 5764#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 5481#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 5482#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 5475#L82 assume !(0 == mp_add_~i~0 % 256); 5476#L82-2 assume !(1 == mp_add_~i~0 % 256); 5483#L83-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b2~0 % 256; 5477#L84-1 assume !(3 == mp_add_~i~0 % 256); 5478#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 5798#L87-1 assume !(0 == mp_add_~i~0 % 256); 5634#L91-1 assume !(1 == mp_add_~i~0 % 256); 5620#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 5619#L93-1 assume !(3 == mp_add_~i~0 % 256); 5618#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 5617#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 5616#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 5606#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 5595#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 5596#L87-1 assume !(0 == mp_add_~i~0 % 256); 5530#L91-1 assume !(1 == mp_add_~i~0 % 256); 5531#L92-1 assume !(2 == mp_add_~i~0 % 256); 5523#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 5510#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 5498#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 5499#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 5703#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 5567#L76-2 [2021-10-28 09:24:08,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:08,883 INFO L85 PathProgramCache]: Analyzing trace with hash -685613011, now seen corresponding path program 11 times [2021-10-28 09:24:08,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:08,884 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689794828] [2021-10-28 09:24:08,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:08,885 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:08,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:08,904 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:24:08,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:08,933 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:24:08,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:08,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1295334223, now seen corresponding path program 1 times [2021-10-28 09:24:08,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:08,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034409209] [2021-10-28 09:24:08,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:08,935 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:08,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:24:09,049 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-28 09:24:09,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:24:09,050 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034409209] [2021-10-28 09:24:09,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034409209] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:24:09,051 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:24:09,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:24:09,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186617374] [2021-10-28 09:24:09,051 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:24:09,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:24:09,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:24:09,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:24:09,053 INFO L87 Difference]: Start difference. First operand 362 states and 480 transitions. cyclomatic complexity: 121 Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:09,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:24:09,480 INFO L93 Difference]: Finished difference Result 601 states and 777 transitions. [2021-10-28 09:24:09,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:24:09,480 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 601 states and 777 transitions. [2021-10-28 09:24:09,487 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 491 [2021-10-28 09:24:09,493 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 601 states to 594 states and 766 transitions. [2021-10-28 09:24:09,494 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 594 [2021-10-28 09:24:09,495 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 594 [2021-10-28 09:24:09,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 594 states and 766 transitions. [2021-10-28 09:24:09,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:24:09,496 INFO L681 BuchiCegarLoop]: Abstraction has 594 states and 766 transitions. [2021-10-28 09:24:09,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states and 766 transitions. [2021-10-28 09:24:09,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 489. [2021-10-28 09:24:09,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 489 states have (on average 1.3190184049079754) internal successors, (645), 488 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:09,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 645 transitions. [2021-10-28 09:24:09,511 INFO L704 BuchiCegarLoop]: Abstraction has 489 states and 645 transitions. [2021-10-28 09:24:09,512 INFO L587 BuchiCegarLoop]: Abstraction has 489 states and 645 transitions. [2021-10-28 09:24:09,512 INFO L425 BuchiCegarLoop]: ======== Iteration 14============ [2021-10-28 09:24:09,512 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 489 states and 645 transitions. [2021-10-28 09:24:09,516 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 438 [2021-10-28 09:24:09,516 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:24:09,516 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:24:09,517 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:09,518 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:09,518 INFO L791 eck$LassoCheckResult]: Stem: 6442#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 6431#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~0 := main_#t~nondet4;havoc main_#t~nondet4;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 6422#L51 assume !(0 == mp_add_~a3~0 % 256); 6423#L51-1 mp_add_~nb~0 := 4; 6512#L61 assume !(0 == mp_add_~b3~0 % 256); 6438#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 6439#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 6621#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 6620#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 6556#L76-2 [2021-10-28 09:24:09,518 INFO L793 eck$LassoCheckResult]: Loop: 6556#L76-2 assume !(1 == mp_add_~i~0 % 256); 6619#L77-1 assume !(2 == mp_add_~i~0 % 256); 6618#L78-1 assume !(3 == mp_add_~i~0 % 256); 6616#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 6613#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 6612#L82-2 assume !(1 == mp_add_~i~0 % 256); 6611#L83-1 assume !(2 == mp_add_~i~0 % 256); 6610#L84-1 assume !(3 == mp_add_~i~0 % 256); 6609#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 6608#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 6575#L91-1 assume !(1 == mp_add_~i~0 % 256); 6605#L92-1 assume !(2 == mp_add_~i~0 % 256); 6603#L93-1 assume !(3 == mp_add_~i~0 % 256); 6601#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 6598#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 6599#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 6683#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 6681#L82 assume !(0 == mp_add_~i~0 % 256); 6679#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 6673#L83-1 assume !(2 == mp_add_~i~0 % 256); 6675#L84-1 assume !(3 == mp_add_~i~0 % 256); 6670#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 6666#L87-1 assume !(0 == mp_add_~i~0 % 256); 6560#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 6550#L92-1 assume !(2 == mp_add_~i~0 % 256); 6551#L93-1 assume !(3 == mp_add_~i~0 % 256); 6546#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 6547#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 6541#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 6542#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 6519#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 6520#L87-1 assume !(0 == mp_add_~i~0 % 256); 6513#L91-1 assume !(1 == mp_add_~i~0 % 256); 6514#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 6488#L93-1 assume !(3 == mp_add_~i~0 % 256); 6489#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 6723#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 6724#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 6704#L76 assume !(0 == mp_add_~i~0 % 256); 6702#L76-2 assume !(1 == mp_add_~i~0 % 256); 6701#L77-1 assume !(2 == mp_add_~i~0 % 256); 6699#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 6696#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 6692#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 6518#L87-1 assume !(0 == mp_add_~i~0 % 256); 6515#L91-1 assume !(1 == mp_add_~i~0 % 256); 6506#L92-1 assume !(2 == mp_add_~i~0 % 256); 6507#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 6566#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 6561#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 6559#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 6555#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 6556#L76-2 [2021-10-28 09:24:09,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:09,519 INFO L85 PathProgramCache]: Analyzing trace with hash -685613011, now seen corresponding path program 12 times [2021-10-28 09:24:09,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:09,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621161448] [2021-10-28 09:24:09,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:09,520 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:09,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:09,539 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:24:09,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:09,565 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:24:09,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:09,566 INFO L85 PathProgramCache]: Analyzing trace with hash 896670135, now seen corresponding path program 1 times [2021-10-28 09:24:09,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:09,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370227196] [2021-10-28 09:24:09,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:09,567 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:09,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:24:09,742 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 52 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 09:24:09,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:24:09,742 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370227196] [2021-10-28 09:24:09,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370227196] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:24:09,743 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343885956] [2021-10-28 09:24:09,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:09,743 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:24:09,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:09,747 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:24:09,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-28 09:24:09,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:24:09,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:24:09,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:24:10,238 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 53 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-28 09:24:10,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1343885956] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:24:10,239 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:24:10,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 11 [2021-10-28 09:24:10,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096723415] [2021-10-28 09:24:10,240 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:24:10,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:24:10,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 09:24:10,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:24:10,243 INFO L87 Difference]: Start difference. First operand 489 states and 645 transitions. cyclomatic complexity: 160 Second operand has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 11 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:12,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:24:12,863 INFO L93 Difference]: Finished difference Result 1354 states and 1678 transitions. [2021-10-28 09:24:12,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-10-28 09:24:12,864 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1354 states and 1678 transitions. [2021-10-28 09:24:12,879 INFO L131 ngComponentsAnalysis]: Automaton has 12 accepting balls. 1057 [2021-10-28 09:24:12,893 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1354 states to 1281 states and 1592 transitions. [2021-10-28 09:24:12,893 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1281 [2021-10-28 09:24:12,895 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1281 [2021-10-28 09:24:12,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1281 states and 1592 transitions. [2021-10-28 09:24:12,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:24:12,898 INFO L681 BuchiCegarLoop]: Abstraction has 1281 states and 1592 transitions. [2021-10-28 09:24:12,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1281 states and 1592 transitions. [2021-10-28 09:24:12,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1281 to 859. [2021-10-28 09:24:12,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 859 states have (on average 1.2887077997671712) internal successors, (1107), 858 states have internal predecessors, (1107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:12,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1107 transitions. [2021-10-28 09:24:12,933 INFO L704 BuchiCegarLoop]: Abstraction has 859 states and 1107 transitions. [2021-10-28 09:24:12,933 INFO L587 BuchiCegarLoop]: Abstraction has 859 states and 1107 transitions. [2021-10-28 09:24:12,933 INFO L425 BuchiCegarLoop]: ======== Iteration 15============ [2021-10-28 09:24:12,933 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 859 states and 1107 transitions. [2021-10-28 09:24:12,940 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 747 [2021-10-28 09:24:12,940 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:24:12,940 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:24:12,941 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:12,941 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:12,942 INFO L791 eck$LassoCheckResult]: Stem: 8535#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 8527#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~0 := main_#t~nondet4;havoc main_#t~nondet4;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 8517#L51 assume !(0 == mp_add_~a3~0 % 256); 8518#L51-1 mp_add_~nb~0 := 4; 8530#L61 assume !(0 == mp_add_~b3~0 % 256); 9009#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 9010#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 8982#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 8983#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 8725#L76-2 [2021-10-28 09:24:12,942 INFO L793 eck$LassoCheckResult]: Loop: 8725#L76-2 assume !(1 == mp_add_~i~0 % 256); 8977#L77-1 assume !(2 == mp_add_~i~0 % 256); 8971#L78-1 assume !(3 == mp_add_~i~0 % 256); 8972#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 8965#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 8769#L82-2 assume !(1 == mp_add_~i~0 % 256); 8960#L83-1 assume !(2 == mp_add_~i~0 % 256); 8961#L84-1 assume !(3 == mp_add_~i~0 % 256); 8954#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 8955#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 8949#L91-1 assume !(1 == mp_add_~i~0 % 256); 8950#L92-1 assume !(2 == mp_add_~i~0 % 256); 8942#L93-1 assume !(3 == mp_add_~i~0 % 256); 8943#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 8912#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 8913#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 8900#L76 assume !(0 == mp_add_~i~0 % 256); 8901#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 8723#L77-1 assume !(2 == mp_add_~i~0 % 256); 8896#L78-1 assume !(3 == mp_add_~i~0 % 256); 8891#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 8890#L82 assume !(0 == mp_add_~i~0 % 256); 8889#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 8573#L83-1 assume !(2 == mp_add_~i~0 % 256); 8888#L84-1 assume !(3 == mp_add_~i~0 % 256); 8886#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 8887#L87-1 assume !(0 == mp_add_~i~0 % 256); 8850#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 8851#L92-1 assume !(2 == mp_add_~i~0 % 256); 8846#L93-1 assume !(3 == mp_add_~i~0 % 256); 8847#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 8580#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 8581#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 8585#L76 assume !(0 == mp_add_~i~0 % 256); 8586#L76-2 assume !(1 == mp_add_~i~0 % 256); 8815#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 8574#L78-1 assume !(3 == mp_add_~i~0 % 256); 8575#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 8883#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 8932#L87-1 assume !(0 == mp_add_~i~0 % 256); 8930#L91-1 assume !(1 == mp_add_~i~0 % 256); 8928#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 8675#L93-1 assume !(3 == mp_add_~i~0 % 256); 8927#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 8697#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 8698#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 8926#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 8925#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 8683#L87-1 assume !(0 == mp_add_~i~0 % 256); 8923#L91-1 assume !(1 == mp_add_~i~0 % 256); 8914#L92-1 assume !(2 == mp_add_~i~0 % 256); 8905#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 8731#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 8729#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 8726#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 8724#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 8725#L76-2 [2021-10-28 09:24:12,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:12,943 INFO L85 PathProgramCache]: Analyzing trace with hash -685613011, now seen corresponding path program 13 times [2021-10-28 09:24:12,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:12,943 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278130227] [2021-10-28 09:24:12,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:12,944 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:12,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:12,957 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:24:12,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:12,971 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:24:12,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:12,971 INFO L85 PathProgramCache]: Analyzing trace with hash 301088585, now seen corresponding path program 1 times [2021-10-28 09:24:12,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:12,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441352722] [2021-10-28 09:24:12,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:12,972 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:12,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:24:13,086 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 10 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:24:13,087 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:24:13,087 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441352722] [2021-10-28 09:24:13,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441352722] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:24:13,087 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774586341] [2021-10-28 09:24:13,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:13,088 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:24:13,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:13,094 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:24:13,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-28 09:24:13,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:24:13,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 09:24:13,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:24:13,557 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2021-10-28 09:24:13,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [774586341] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:24:13,558 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:24:13,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2021-10-28 09:24:13,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787260388] [2021-10-28 09:24:13,559 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:24:13,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:24:13,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:24:13,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:24:13,560 INFO L87 Difference]: Start difference. First operand 859 states and 1107 transitions. cyclomatic complexity: 255 Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:13,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:24:13,891 INFO L93 Difference]: Finished difference Result 1213 states and 1498 transitions. [2021-10-28 09:24:13,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:24:13,892 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1213 states and 1498 transitions. [2021-10-28 09:24:13,904 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 1075 [2021-10-28 09:24:13,916 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1213 states to 1150 states and 1389 transitions. [2021-10-28 09:24:13,916 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1150 [2021-10-28 09:24:13,918 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1150 [2021-10-28 09:24:13,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1150 states and 1389 transitions. [2021-10-28 09:24:13,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:24:13,921 INFO L681 BuchiCegarLoop]: Abstraction has 1150 states and 1389 transitions. [2021-10-28 09:24:13,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1150 states and 1389 transitions. [2021-10-28 09:24:13,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1150 to 955. [2021-10-28 09:24:13,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 955 states, 955 states have (on average 1.237696335078534) internal successors, (1182), 954 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:13,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 955 states to 955 states and 1182 transitions. [2021-10-28 09:24:13,950 INFO L704 BuchiCegarLoop]: Abstraction has 955 states and 1182 transitions. [2021-10-28 09:24:13,950 INFO L587 BuchiCegarLoop]: Abstraction has 955 states and 1182 transitions. [2021-10-28 09:24:13,950 INFO L425 BuchiCegarLoop]: ======== Iteration 16============ [2021-10-28 09:24:13,950 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 955 states and 1182 transitions. [2021-10-28 09:24:13,957 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 907 [2021-10-28 09:24:13,958 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:24:13,958 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:24:13,959 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:13,959 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:13,959 INFO L791 eck$LassoCheckResult]: Stem: 10785#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 10776#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~0 := main_#t~nondet4;havoc main_#t~nondet4;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 10765#L51 assume !(0 == mp_add_~a3~0 % 256); 10766#L51-1 mp_add_~nb~0 := 4; 10778#L61 assume !(0 == mp_add_~b3~0 % 256); 11495#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 11496#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 11491#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 10954#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 10898#L76-2 [2021-10-28 09:24:13,959 INFO L793 eck$LassoCheckResult]: Loop: 10898#L76-2 assume !(1 == mp_add_~i~0 % 256); 10890#L77-1 assume !(2 == mp_add_~i~0 % 256); 10891#L78-1 assume !(3 == mp_add_~i~0 % 256); 10886#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 10887#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 10882#L82-2 assume !(1 == mp_add_~i~0 % 256); 10883#L83-1 assume !(2 == mp_add_~i~0 % 256); 10878#L84-1 assume !(3 == mp_add_~i~0 % 256); 10879#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 11490#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 11489#L91-1 assume !(1 == mp_add_~i~0 % 256); 11488#L92-1 assume !(2 == mp_add_~i~0 % 256); 11487#L93-1 assume !(3 == mp_add_~i~0 % 256); 11486#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 11485#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 11484#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 11483#L76 assume !(0 == mp_add_~i~0 % 256); 11482#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 10893#L77-1 assume !(2 == mp_add_~i~0 % 256); 11481#L78-1 assume !(3 == mp_add_~i~0 % 256); 11179#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 11177#L82 assume !(0 == mp_add_~i~0 % 256); 11176#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 11081#L83-1 assume !(2 == mp_add_~i~0 % 256); 11175#L84-1 assume !(3 == mp_add_~i~0 % 256); 11173#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 11172#L87-1 assume !(0 == mp_add_~i~0 % 256); 11169#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 11167#L92-1 assume !(2 == mp_add_~i~0 % 256); 11164#L93-1 assume !(3 == mp_add_~i~0 % 256); 11160#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 11155#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 11140#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 11141#L76 assume !(0 == mp_add_~i~0 % 256); 11255#L76-2 assume !(1 == mp_add_~i~0 % 256); 11254#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 11083#L78-1 assume !(3 == mp_add_~i~0 % 256); 11250#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 11248#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 11249#L87-1 assume !(0 == mp_add_~i~0 % 256); 11221#L91-1 assume !(1 == mp_add_~i~0 % 256); 11222#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 10909#L93-1 assume !(3 == mp_add_~i~0 % 256); 11216#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 11212#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 11213#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 11208#L76 assume !(0 == mp_add_~i~0 % 256); 11207#L76-2 assume !(1 == mp_add_~i~0 % 256); 11206#L77-1 assume !(2 == mp_add_~i~0 % 256); 11205#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 11079#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 11072#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 11124#L87-1 assume !(0 == mp_add_~i~0 % 256); 11070#L91-1 assume !(1 == mp_add_~i~0 % 256); 11065#L92-1 assume !(2 == mp_add_~i~0 % 256); 11060#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 11059#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 11058#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 11056#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 11053#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 11054#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 11097#L87-1 assume !(0 == mp_add_~i~0 % 256); 10959#L91-1 assume !(1 == mp_add_~i~0 % 256); 10960#L92-1 assume !(2 == mp_add_~i~0 % 256); 10862#L93-1 assume !(3 == mp_add_~i~0 % 256); 10863#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 10854#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 10855#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 10897#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 10898#L76-2 [2021-10-28 09:24:13,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:13,960 INFO L85 PathProgramCache]: Analyzing trace with hash -685613011, now seen corresponding path program 14 times [2021-10-28 09:24:13,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:13,961 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616085337] [2021-10-28 09:24:13,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:13,961 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:13,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:13,974 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:24:13,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:13,988 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:24:13,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:13,989 INFO L85 PathProgramCache]: Analyzing trace with hash -2047891560, now seen corresponding path program 1 times [2021-10-28 09:24:13,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:13,989 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597855087] [2021-10-28 09:24:13,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:13,990 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:14,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:24:14,084 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 68 proven. 29 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-28 09:24:14,085 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:24:14,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597855087] [2021-10-28 09:24:14,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597855087] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:24:14,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881029589] [2021-10-28 09:24:14,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:14,086 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:24:14,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:14,088 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:24:14,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-28 09:24:14,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:24:14,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 09:24:14,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:24:14,760 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 57 proven. 9 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-10-28 09:24:14,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [881029589] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:24:14,761 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:24:14,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2021-10-28 09:24:14,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501971533] [2021-10-28 09:24:14,762 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:24:14,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:24:14,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 09:24:14,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:24:14,763 INFO L87 Difference]: Start difference. First operand 955 states and 1182 transitions. cyclomatic complexity: 234 Second operand has 9 states, 8 states have (on average 10.0) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:15,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:24:15,637 INFO L93 Difference]: Finished difference Result 1770 states and 2113 transitions. [2021-10-28 09:24:15,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 09:24:15,638 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1770 states and 2113 transitions. [2021-10-28 09:24:15,663 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 1714 [2021-10-28 09:24:15,684 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1770 states to 1762 states and 2091 transitions. [2021-10-28 09:24:15,684 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1762 [2021-10-28 09:24:15,687 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1762 [2021-10-28 09:24:15,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1762 states and 2091 transitions. [2021-10-28 09:24:15,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:24:15,691 INFO L681 BuchiCegarLoop]: Abstraction has 1762 states and 2091 transitions. [2021-10-28 09:24:15,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1762 states and 2091 transitions. [2021-10-28 09:24:15,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1762 to 1333. [2021-10-28 09:24:15,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1333 states, 1333 states have (on average 1.2123030757689421) internal successors, (1616), 1332 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:15,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1333 states to 1333 states and 1616 transitions. [2021-10-28 09:24:15,733 INFO L704 BuchiCegarLoop]: Abstraction has 1333 states and 1616 transitions. [2021-10-28 09:24:15,734 INFO L587 BuchiCegarLoop]: Abstraction has 1333 states and 1616 transitions. [2021-10-28 09:24:15,734 INFO L425 BuchiCegarLoop]: ======== Iteration 17============ [2021-10-28 09:24:15,734 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1333 states and 1616 transitions. [2021-10-28 09:24:15,744 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 1285 [2021-10-28 09:24:15,744 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:24:15,744 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:24:15,746 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:15,746 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [7, 7, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:15,746 INFO L791 eck$LassoCheckResult]: Stem: 13739#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 13729#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~0 := main_#t~nondet4;havoc main_#t~nondet4;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 13719#L51 assume !(0 == mp_add_~a3~0 % 256); 13720#L51-1 mp_add_~nb~0 := 4; 14558#L61 assume !(0 == mp_add_~b3~0 % 256); 14559#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 14618#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 14619#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 14611#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 14280#L76-2 [2021-10-28 09:24:15,746 INFO L793 eck$LassoCheckResult]: Loop: 14280#L76-2 assume !(1 == mp_add_~i~0 % 256); 14602#L77-1 assume !(2 == mp_add_~i~0 % 256); 14603#L78-1 assume !(3 == mp_add_~i~0 % 256); 14578#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 14579#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 13755#L82-2 assume !(1 == mp_add_~i~0 % 256); 13756#L83-1 assume !(2 == mp_add_~i~0 % 256); 14566#L84-1 assume !(3 == mp_add_~i~0 % 256); 14567#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 14562#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 14563#L91-1 assume !(1 == mp_add_~i~0 % 256); 14554#L92-1 assume !(2 == mp_add_~i~0 % 256); 14555#L93-1 assume !(3 == mp_add_~i~0 % 256); 14523#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 14524#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 14528#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 14529#L76 assume !(0 == mp_add_~i~0 % 256); 14525#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 14271#L77-1 assume !(2 == mp_add_~i~0 % 256); 14520#L78-1 assume !(3 == mp_add_~i~0 % 256); 14501#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 14499#L82 assume !(0 == mp_add_~i~0 % 256); 14497#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 14259#L83-1 assume !(2 == mp_add_~i~0 % 256); 14495#L84-1 assume !(3 == mp_add_~i~0 % 256); 14493#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 14483#L87-1 assume !(0 == mp_add_~i~0 % 256); 14484#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 14463#L92-1 assume !(2 == mp_add_~i~0 % 256); 14464#L93-1 assume !(3 == mp_add_~i~0 % 256); 14441#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 14442#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 14292#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 14287#L76 assume !(0 == mp_add_~i~0 % 256); 14283#L76-2 assume !(1 == mp_add_~i~0 % 256); 14261#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 14253#L78-1 assume !(3 == mp_add_~i~0 % 256); 14246#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 14217#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 14214#L87-1 assume !(0 == mp_add_~i~0 % 256); 14212#L91-1 assume !(1 == mp_add_~i~0 % 256); 14210#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 14207#L93-1 assume !(3 == mp_add_~i~0 % 256); 14204#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 14203#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 14159#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 14160#L76 assume !(0 == mp_add_~i~0 % 256); 14290#L76-2 assume !(1 == mp_add_~i~0 % 256); 14289#L77-1 assume !(2 == mp_add_~i~0 % 256); 14168#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 14147#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 14141#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 14135#L87-1 assume !(0 == mp_add_~i~0 % 256); 14133#L91-1 assume !(1 == mp_add_~i~0 % 256); 14130#L92-1 assume !(2 == mp_add_~i~0 % 256); 14127#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 14003#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 14124#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 14121#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 14123#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 14101#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 14102#L87-1 assume !(0 == mp_add_~i~0 % 256); 14090#L91-1 assume !(1 == mp_add_~i~0 % 256); 14091#L92-1 assume !(2 == mp_add_~i~0 % 256); 14075#L93-1 assume !(3 == mp_add_~i~0 % 256); 14076#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 14040#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 14041#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 14194#L76 assume !(0 == mp_add_~i~0 % 256); 14193#L76-2 assume !(1 == mp_add_~i~0 % 256); 14192#L77-1 assume !(2 == mp_add_~i~0 % 256); 14190#L78-1 assume !(3 == mp_add_~i~0 % 256); 14187#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 14184#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 14182#L87-1 assume !(0 == mp_add_~i~0 % 256); 14178#L91-1 assume !(1 == mp_add_~i~0 % 256); 14177#L92-1 assume !(2 == mp_add_~i~0 % 256); 14176#L93-1 assume !(3 == mp_add_~i~0 % 256); 14175#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 14174#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 14172#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 14171#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 14145#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 14216#L87-1 assume !(0 == mp_add_~i~0 % 256); 14288#L91-1 assume !(1 == mp_add_~i~0 % 256); 14165#L92-1 assume !(2 == mp_add_~i~0 % 256); 13983#L93-1 assume !(3 == mp_add_~i~0 % 256); 14140#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 14073#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 14074#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 14279#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 14280#L76-2 [2021-10-28 09:24:15,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:15,747 INFO L85 PathProgramCache]: Analyzing trace with hash -685613011, now seen corresponding path program 15 times [2021-10-28 09:24:15,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:15,748 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278290798] [2021-10-28 09:24:15,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:15,748 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:15,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:15,764 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:24:15,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:15,779 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:24:15,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:15,780 INFO L85 PathProgramCache]: Analyzing trace with hash -953562426, now seen corresponding path program 2 times [2021-10-28 09:24:15,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:15,780 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611572665] [2021-10-28 09:24:15,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:15,780 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:15,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:24:16,023 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 163 proven. 9 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-10-28 09:24:16,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:24:16,023 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611572665] [2021-10-28 09:24:16,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611572665] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:24:16,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083404094] [2021-10-28 09:24:16,024 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:24:16,024 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:24:16,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:16,032 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:24:16,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-28 09:24:16,260 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 09:24:16,260 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:24:16,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 09:24:16,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:24:16,579 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 147 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-10-28 09:24:16,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2083404094] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:24:16,581 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:24:16,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 4] total 11 [2021-10-28 09:24:16,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579327382] [2021-10-28 09:24:16,582 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:24:16,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:24:16,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 09:24:16,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:24:16,584 INFO L87 Difference]: Start difference. First operand 1333 states and 1616 transitions. cyclomatic complexity: 290 Second operand has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:18,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:24:18,339 INFO L93 Difference]: Finished difference Result 1507 states and 1659 transitions. [2021-10-28 09:24:18,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-10-28 09:24:18,340 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1507 states and 1659 transitions. [2021-10-28 09:24:18,354 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 1144 [2021-10-28 09:24:18,367 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1507 states to 1344 states and 1487 transitions. [2021-10-28 09:24:18,367 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1344 [2021-10-28 09:24:18,369 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1344 [2021-10-28 09:24:18,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1344 states and 1487 transitions. [2021-10-28 09:24:18,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:24:18,372 INFO L681 BuchiCegarLoop]: Abstraction has 1344 states and 1487 transitions. [2021-10-28 09:24:18,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1344 states and 1487 transitions. [2021-10-28 09:24:18,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1344 to 623. [2021-10-28 09:24:18,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 623 states, 623 states have (on average 1.1621187800963082) internal successors, (724), 622 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:18,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 724 transitions. [2021-10-28 09:24:18,394 INFO L704 BuchiCegarLoop]: Abstraction has 623 states and 724 transitions. [2021-10-28 09:24:18,394 INFO L587 BuchiCegarLoop]: Abstraction has 623 states and 724 transitions. [2021-10-28 09:24:18,394 INFO L425 BuchiCegarLoop]: ======== Iteration 18============ [2021-10-28 09:24:18,394 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 623 states and 724 transitions. [2021-10-28 09:24:18,399 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 560 [2021-10-28 09:24:18,399 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:24:18,399 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:24:18,400 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:18,401 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:18,401 INFO L791 eck$LassoCheckResult]: Stem: 16960#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 16953#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~0 := main_#t~nondet4;havoc main_#t~nondet4;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 16943#L51 assume !(0 == mp_add_~a3~0 % 256); 16944#L51-1 mp_add_~nb~0 := 4; 17199#L61 assume !(0 == mp_add_~b3~0 % 256); 17200#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 17219#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 17220#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 17217#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 16997#L76-2 [2021-10-28 09:24:18,401 INFO L793 eck$LassoCheckResult]: Loop: 16997#L76-2 assume !(1 == mp_add_~i~0 % 256); 17216#L77-1 assume !(2 == mp_add_~i~0 % 256); 17215#L78-1 assume !(3 == mp_add_~i~0 % 256); 17214#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 17213#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 17052#L82-2 assume !(1 == mp_add_~i~0 % 256); 17212#L83-1 assume !(2 == mp_add_~i~0 % 256); 17211#L84-1 assume !(3 == mp_add_~i~0 % 256); 17210#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 17208#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 17206#L91-1 assume !(1 == mp_add_~i~0 % 256); 17204#L92-1 assume !(2 == mp_add_~i~0 % 256); 17201#L93-1 assume !(3 == mp_add_~i~0 % 256); 17202#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 17339#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 17337#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 17161#L76 assume !(0 == mp_add_~i~0 % 256); 17160#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 16995#L77-1 assume !(2 == mp_add_~i~0 % 256); 17159#L78-1 assume !(3 == mp_add_~i~0 % 256); 17158#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 17157#L82 assume !(0 == mp_add_~i~0 % 256); 17156#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 17051#L83-1 assume !(2 == mp_add_~i~0 % 256); 17155#L84-1 assume !(3 == mp_add_~i~0 % 256); 17153#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 17154#L87-1 assume !(0 == mp_add_~i~0 % 256); 17150#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 17131#L92-1 assume !(2 == mp_add_~i~0 % 256); 17127#L93-1 assume !(3 == mp_add_~i~0 % 256); 17120#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 17121#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 17116#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 17115#L76 assume !(0 == mp_add_~i~0 % 256); 17114#L76-2 assume !(1 == mp_add_~i~0 % 256); 17113#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 16993#L78-1 assume !(3 == mp_add_~i~0 % 256); 17109#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 17107#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 17105#L87-1 assume !(0 == mp_add_~i~0 % 256); 17106#L91-1 assume !(1 == mp_add_~i~0 % 256); 17100#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 17098#L93-1 assume !(3 == mp_add_~i~0 % 256); 17096#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 17094#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 17095#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 17091#L76 assume !(0 == mp_add_~i~0 % 256); 17090#L76-2 assume !(1 == mp_add_~i~0 % 256); 17089#L77-1 assume !(2 == mp_add_~i~0 % 256); 17087#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 16989#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 17014#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 17081#L87-1 assume !(0 == mp_add_~i~0 % 256); 17082#L91-1 assume !(1 == mp_add_~i~0 % 256); 17077#L92-1 assume !(2 == mp_add_~i~0 % 256); 17078#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 17227#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 17070#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 17071#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 17067#L76 assume !(0 == mp_add_~i~0 % 256); 17066#L76-2 assume !(1 == mp_add_~i~0 % 256); 17065#L77-1 assume !(2 == mp_add_~i~0 % 256); 17063#L78-1 assume !(3 == mp_add_~i~0 % 256); 17060#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 17058#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 17057#L87-1 assume !(0 == mp_add_~i~0 % 256); 17056#L91-1 assume !(1 == mp_add_~i~0 % 256); 17055#L92-1 assume !(2 == mp_add_~i~0 % 256); 17054#L93-1 assume !(3 == mp_add_~i~0 % 256); 17053#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 17044#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 17042#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 17041#L76 assume !(0 == mp_add_~i~0 % 256); 17040#L76-2 assume !(1 == mp_add_~i~0 % 256); 17039#L77-1 assume !(2 == mp_add_~i~0 % 256); 17037#L78-1 assume !(3 == mp_add_~i~0 % 256); 17034#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 17032#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 17031#L87-1 assume !(0 == mp_add_~i~0 % 256); 17030#L91-1 assume !(1 == mp_add_~i~0 % 256); 17029#L92-1 assume !(2 == mp_add_~i~0 % 256); 17028#L93-1 assume !(3 == mp_add_~i~0 % 256); 17027#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 17026#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 17024#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 17023#L76 assume !(0 == mp_add_~i~0 % 256); 17022#L76-2 assume !(1 == mp_add_~i~0 % 256); 17021#L77-1 assume !(2 == mp_add_~i~0 % 256); 17020#L78-1 assume !(3 == mp_add_~i~0 % 256); 17016#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 17018#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 17102#L87-1 assume !(0 == mp_add_~i~0 % 256); 17101#L91-1 assume !(1 == mp_add_~i~0 % 256); 17003#L92-1 assume !(2 == mp_add_~i~0 % 256); 17001#L93-1 assume !(3 == mp_add_~i~0 % 256); 17000#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 16999#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 16998#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 16996#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 16997#L76-2 [2021-10-28 09:24:18,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:18,402 INFO L85 PathProgramCache]: Analyzing trace with hash -685613011, now seen corresponding path program 16 times [2021-10-28 09:24:18,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:18,403 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635929523] [2021-10-28 09:24:18,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:18,403 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:18,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:18,417 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:24:18,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:18,430 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:24:18,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:18,431 INFO L85 PathProgramCache]: Analyzing trace with hash 128101928, now seen corresponding path program 1 times [2021-10-28 09:24:18,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:18,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321619405] [2021-10-28 09:24:18,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:18,432 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:18,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:24:18,769 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 25 proven. 252 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:24:18,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:24:18,770 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321619405] [2021-10-28 09:24:18,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321619405] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:24:18,770 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500087201] [2021-10-28 09:24:18,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:18,770 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:24:18,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:18,775 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:24:18,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-28 09:24:19,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:24:19,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 09:24:19,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:24:20,069 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 106 proven. 60 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-10-28 09:24:20,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500087201] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:24:20,069 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:24:20,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8] total 19 [2021-10-28 09:24:20,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800124622] [2021-10-28 09:24:20,070 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:24:20,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:24:20,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-28 09:24:20,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2021-10-28 09:24:20,073 INFO L87 Difference]: Start difference. First operand 623 states and 724 transitions. cyclomatic complexity: 106 Second operand has 20 states, 19 states have (on average 7.894736842105263) internal successors, (150), 20 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:23,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:24:23,741 INFO L93 Difference]: Finished difference Result 618 states and 673 transitions. [2021-10-28 09:24:23,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-28 09:24:23,751 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 618 states and 673 transitions. [2021-10-28 09:24:23,757 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 59 [2021-10-28 09:24:23,763 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 618 states to 618 states and 673 transitions. [2021-10-28 09:24:23,763 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 618 [2021-10-28 09:24:23,764 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 618 [2021-10-28 09:24:23,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 618 states and 673 transitions. [2021-10-28 09:24:23,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:24:23,766 INFO L681 BuchiCegarLoop]: Abstraction has 618 states and 673 transitions. [2021-10-28 09:24:23,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states and 673 transitions. [2021-10-28 09:24:23,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 308. [2021-10-28 09:24:23,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 308 states have (on average 1.1363636363636365) internal successors, (350), 307 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:23,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 350 transitions. [2021-10-28 09:24:23,779 INFO L704 BuchiCegarLoop]: Abstraction has 308 states and 350 transitions. [2021-10-28 09:24:23,779 INFO L587 BuchiCegarLoop]: Abstraction has 308 states and 350 transitions. [2021-10-28 09:24:23,779 INFO L425 BuchiCegarLoop]: ======== Iteration 19============ [2021-10-28 09:24:23,779 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 308 states and 350 transitions. [2021-10-28 09:24:23,782 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 43 [2021-10-28 09:24:23,782 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:24:23,782 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:24:23,783 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:23,784 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:23,784 INFO L791 eck$LassoCheckResult]: Stem: 18575#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 18569#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~0 := main_#t~nondet4;havoc main_#t~nondet4;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 18559#L51 assume 0 == mp_add_~a3~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 18561#L53 assume !(0 == mp_add_~a2~0 % 256); 18587#L51-1 mp_add_~nb~0 := 4; 18562#L61 assume !(0 == mp_add_~b3~0 % 256); 18563#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 18695#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 18691#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 18689#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 18686#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 18683#L82-2 assume !(1 == mp_add_~i~0 % 256); 18680#L83-1 assume !(2 == mp_add_~i~0 % 256); 18677#L84-1 assume !(3 == mp_add_~i~0 % 256); 18674#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 18671#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 18668#L91-1 assume !(1 == mp_add_~i~0 % 256); 18665#L92-1 assume !(2 == mp_add_~i~0 % 256); 18662#L93-1 assume !(3 == mp_add_~i~0 % 256); 18659#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 18656#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 18645#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 18637#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 18636#L82 assume !(0 == mp_add_~i~0 % 256); 18635#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 18634#L83-1 assume !(2 == mp_add_~i~0 % 256); 18633#L84-1 assume !(3 == mp_add_~i~0 % 256); 18631#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 18627#L87-1 assume !(0 == mp_add_~i~0 % 256); 18628#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 18619#L92-1 assume !(2 == mp_add_~i~0 % 256); 18620#L93-1 assume !(3 == mp_add_~i~0 % 256); 18611#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 18612#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 18601#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 18602#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 18596#L82 assume !(0 == mp_add_~i~0 % 256); 18597#L82-2 assume !(1 == mp_add_~i~0 % 256); 18592#L83-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b2~0 % 256; 18593#L84-1 assume !(3 == mp_add_~i~0 % 256); 18835#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 18834#L87-1 assume !(0 == mp_add_~i~0 % 256); 18833#L91-1 assume !(1 == mp_add_~i~0 % 256); 18832#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 18831#L93-1 assume !(3 == mp_add_~i~0 % 256); 18830#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 18829#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 18828#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 18826#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 18824#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 18821#L87-1 assume !(0 == mp_add_~i~0 % 256); 18820#L91-1 assume !(1 == mp_add_~i~0 % 256); 18819#L92-1 assume !(2 == mp_add_~i~0 % 256); 18817#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 18816#L94-1 [2021-10-28 09:24:23,784 INFO L793 eck$LassoCheckResult]: Loop: 18816#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 18815#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 18814#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 18591#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 18582#L82 assume !(0 == mp_add_~i~0 % 256); 18583#L82-2 assume !(1 == mp_add_~i~0 % 256); 18589#L83-1 assume !(2 == mp_add_~i~0 % 256); 18584#L84-1 assume !(3 == mp_add_~i~0 % 256); 18585#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 18848#L87-1 assume !(0 == mp_add_~i~0 % 256); 18847#L91-1 assume !(1 == mp_add_~i~0 % 256); 18846#L92-1 assume !(2 == mp_add_~i~0 % 256); 18818#L93-1 assume !(3 == mp_add_~i~0 % 256); 18816#L94-1 [2021-10-28 09:24:23,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:23,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1354191885, now seen corresponding path program 1 times [2021-10-28 09:24:23,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:23,785 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073181247] [2021-10-28 09:24:23,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:23,786 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:23,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:24:23,898 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 2 proven. 19 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-10-28 09:24:23,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:24:23,898 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073181247] [2021-10-28 09:24:23,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073181247] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:24:23,899 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160388558] [2021-10-28 09:24:23,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:23,899 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:24:23,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:23,902 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:24:23,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-28 09:24:24,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:24:24,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 09:24:24,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:24:24,514 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-10-28 09:24:24,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160388558] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:24:24,515 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:24:24,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-10-28 09:24:24,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492092605] [2021-10-28 09:24:24,517 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:24:24,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:24,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 1 times [2021-10-28 09:24:24,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:24,518 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509114977] [2021-10-28 09:24:24,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:24,518 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:24,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:24,529 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:24:24,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:24,536 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:24:24,697 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:24:24,697 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:24:24,698 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:24:24,698 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:24:24,698 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:24:24,698 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:24,698 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:24:24,698 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:24:24,698 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add-1.i_Iteration19_Loop [2021-10-28 09:24:24,698 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:24:24,699 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:24:24,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:24:24,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:24:25,097 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:24:25,098 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:24:25,100 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:25,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:25,103 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:25,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 09:24:25,106 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:24:25,106 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:24:25,132 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:24:25,132 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_mp_add_~partial_sum~0=0, ULTIMATE.start_mp_add_~carry~0=0} Honda state: {ULTIMATE.start_mp_add_~partial_sum~0=0, ULTIMATE.start_mp_add_~carry~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:24:25,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:25,164 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:25,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:25,166 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:25,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 09:24:25,172 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:24:25,172 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:24:25,241 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-10-28 09:24:25,242 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:25,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:25,244 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:25,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 09:24:25,248 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:24:25,248 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:24:26,616 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:24:26,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:26,623 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:24:26,623 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:24:26,623 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:24:26,623 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:24:26,623 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:24:26,623 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:26,623 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:24:26,623 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:24:26,623 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add-1.i_Iteration19_Loop [2021-10-28 09:24:26,623 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:24:26,623 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:24:26,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:24:26,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:24:26,864 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:24:26,868 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:24:26,870 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:26,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:26,871 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:26,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 09:24:26,877 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:26,887 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:26,887 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:26,888 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:26,888 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:26,888 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:24:26,898 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:24:26,899 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:26,912 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:26,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:26,938 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:26,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:26,939 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:26,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 09:24:26,941 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:26,951 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:26,951 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:26,951 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:26,951 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:26,951 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:24:26,953 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:24:26,953 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:26,957 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:26,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:26,985 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 09:24:26,985 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:26,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:26,987 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:26,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 09:24:26,991 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:27,000 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:27,001 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:27,001 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:27,001 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:27,001 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:24:27,009 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:24:27,010 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:27,022 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:27,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:27,050 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:27,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:27,051 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:27,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 09:24:27,057 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:27,067 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:27,067 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:27,068 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:27,068 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:27,068 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:24:27,071 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:24:27,071 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:27,086 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:27,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:27,117 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 09:24:27,118 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:27,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:27,119 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:27,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 09:24:27,126 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:27,136 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:27,136 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:27,137 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:27,137 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:27,137 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:27,145 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:27,145 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:27,176 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:27,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:27,203 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:27,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:27,222 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:27,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 09:24:27,228 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 [2021-10-28 09:24:27,237 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:27,238 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:27,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:27,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:27,238 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:27,241 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:27,241 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:27,246 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:27,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:27,277 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 09:24:27,277 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:27,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:27,279 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:27,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 09:24:27,286 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:27,297 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:27,297 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:27,297 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:27,298 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:27,298 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:24:27,309 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:24:27,309 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:27,321 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:27,354 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-10-28 09:24:27,356 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:27,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:27,357 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:27,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 09:24:27,359 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:27,368 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:27,369 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:27,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:27,369 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:27,369 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:24:27,373 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:24:27,373 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:27,378 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:27,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:27,409 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 09:24:27,409 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:27,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:27,410 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:27,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 09:24:27,412 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:27,421 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:27,421 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:24:27,422 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:27,422 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:27,422 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:27,422 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:24:27,435 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:24:27,435 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:27,461 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:27,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:27,509 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:27,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:27,511 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:27,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 09:24:27,518 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:27,530 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:27,530 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:24:27,530 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:27,530 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:27,531 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:27,531 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:24:27,537 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:24:27,537 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:27,553 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:27,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:27,597 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 09:24:27,597 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:27,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:27,602 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:27,610 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:27,622 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:27,623 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:24:27,623 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:27,623 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:27,623 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:27,623 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:27,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 09:24:27,635 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:27,636 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:27,657 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:27,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:27,706 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:27,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:27,707 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:27,719 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 [2021-10-28 09:24:27,731 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:27,732 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:24:27,732 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:27,732 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:27,732 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:27,732 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:27,739 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:27,739 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:27,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 09:24:27,757 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:27,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:27,807 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 09:24:27,807 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:27,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:27,810 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:27,817 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:27,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 09:24:27,831 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:27,831 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:24:27,832 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:27,832 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:27,832 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:27,832 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:24:27,854 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:24:27,854 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:27,891 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:27,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:27,940 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:27,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:27,942 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:27,946 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:27,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 09:24:27,959 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:27,959 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:24:27,959 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:27,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:27,960 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:27,960 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:24:27,966 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:24:27,967 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:27,990 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:28,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:28,038 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 09:24:28,039 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:28,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:28,040 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:28,043 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 [2021-10-28 09:24:28,055 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:28,056 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:24:28,056 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:28,056 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:28,056 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:28,056 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:28,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 09:24:28,064 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:28,064 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:28,090 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:28,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:28,137 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:28,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:28,139 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:28,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 09:24:28,142 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:28,154 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:28,154 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:24:28,154 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:28,154 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:28,155 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:28,155 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:28,159 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:28,159 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:28,171 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:28,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:28,221 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 09:24:28,221 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:28,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:28,223 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:28,225 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:28,238 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:28,238 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:24:28,238 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:28,239 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:28,239 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:28,239 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:24:28,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 09:24:28,251 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:24:28,251 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:28,279 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:28,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:28,332 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:28,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:28,334 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:28,337 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:28,349 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:28,349 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:24:28,350 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:28,350 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:28,350 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:28,350 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:24:28,356 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:24:28,356 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:28,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 09:24:28,379 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:28,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:28,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:24:28,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:24:28,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:24:28,428 INFO L87 Difference]: Start difference. First operand 308 states and 350 transitions. cyclomatic complexity: 45 Second operand has 7 states, 6 states have (on average 10.5) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:28,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:24:28,656 INFO L93 Difference]: Finished difference Result 501 states and 558 transitions. [2021-10-28 09:24:28,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:24:28,656 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 501 states and 558 transitions. [2021-10-28 09:24:28,661 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 79 [2021-10-28 09:24:28,666 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 501 states to 488 states and 545 transitions. [2021-10-28 09:24:28,666 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 488 [2021-10-28 09:24:28,667 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 488 [2021-10-28 09:24:28,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 488 states and 545 transitions. [2021-10-28 09:24:28,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:24:28,668 INFO L681 BuchiCegarLoop]: Abstraction has 488 states and 545 transitions. [2021-10-28 09:24:28,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states and 545 transitions. [2021-10-28 09:24:28,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 374. [2021-10-28 09:24:28,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 374 states have (on average 1.1310160427807487) internal successors, (423), 373 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:28,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 423 transitions. [2021-10-28 09:24:28,680 INFO L704 BuchiCegarLoop]: Abstraction has 374 states and 423 transitions. [2021-10-28 09:24:28,681 INFO L587 BuchiCegarLoop]: Abstraction has 374 states and 423 transitions. [2021-10-28 09:24:28,681 INFO L425 BuchiCegarLoop]: ======== Iteration 20============ [2021-10-28 09:24:28,681 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 374 states and 423 transitions. [2021-10-28 09:24:28,684 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 43 [2021-10-28 09:24:28,684 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:24:28,685 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:24:28,689 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:28,690 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:28,690 INFO L791 eck$LassoCheckResult]: Stem: 19555#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 19549#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~0 := main_#t~nondet4;havoc main_#t~nondet4;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 19539#L51 assume 0 == mp_add_~a3~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 19541#L53 assume !(0 == mp_add_~a2~0 % 256); 19551#L51-1 mp_add_~nb~0 := 4; 19542#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 19544#L63 assume !(0 == mp_add_~b2~0 % 256); 19545#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 19661#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 19662#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 19836#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 19832#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 19833#L82-2 assume !(1 == mp_add_~i~0 % 256); 19828#L83-1 assume !(2 == mp_add_~i~0 % 256); 19829#L84-1 assume !(3 == mp_add_~i~0 % 256); 19824#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 19825#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 19820#L91-1 assume !(1 == mp_add_~i~0 % 256); 19821#L92-1 assume !(2 == mp_add_~i~0 % 256); 19816#L93-1 assume !(3 == mp_add_~i~0 % 256); 19817#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 19812#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 19813#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 19618#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 19810#L82 assume !(0 == mp_add_~i~0 % 256); 19806#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 19807#L83-1 assume !(2 == mp_add_~i~0 % 256); 19856#L84-1 assume !(3 == mp_add_~i~0 % 256); 19857#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 19871#L87-1 assume !(0 == mp_add_~i~0 % 256); 19870#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 19869#L92-1 assume !(2 == mp_add_~i~0 % 256); 19868#L93-1 assume !(3 == mp_add_~i~0 % 256); 19867#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 19866#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 19865#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 19864#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 19774#L82 assume !(0 == mp_add_~i~0 % 256); 19844#L82-2 assume !(1 == mp_add_~i~0 % 256); 19845#L83-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b2~0 % 256; 19884#L84-1 assume !(3 == mp_add_~i~0 % 256); 19883#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 19882#L87-1 assume !(0 == mp_add_~i~0 % 256); 19881#L91-1 assume !(1 == mp_add_~i~0 % 256); 19880#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 19879#L93-1 assume !(3 == mp_add_~i~0 % 256); 19878#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 19877#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 19876#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 19862#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 19863#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 19895#L87-1 assume !(0 == mp_add_~i~0 % 256); 19907#L91-1 assume !(1 == mp_add_~i~0 % 256); 19905#L92-1 assume !(2 == mp_add_~i~0 % 256); 19902#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 19892#L94-1 [2021-10-28 09:24:28,691 INFO L793 eck$LassoCheckResult]: Loop: 19892#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 19887#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 19886#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 19667#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 19561#L82 assume !(0 == mp_add_~i~0 % 256); 19562#L82-2 assume !(1 == mp_add_~i~0 % 256); 19569#L83-1 assume !(2 == mp_add_~i~0 % 256); 19563#L84-1 assume !(3 == mp_add_~i~0 % 256); 19564#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 19908#L87-1 assume !(0 == mp_add_~i~0 % 256); 19906#L91-1 assume !(1 == mp_add_~i~0 % 256); 19904#L92-1 assume !(2 == mp_add_~i~0 % 256); 19903#L93-1 assume !(3 == mp_add_~i~0 % 256); 19892#L94-1 [2021-10-28 09:24:28,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:28,692 INFO L85 PathProgramCache]: Analyzing trace with hash -2089281914, now seen corresponding path program 1 times [2021-10-28 09:24:28,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:28,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030524217] [2021-10-28 09:24:28,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:28,693 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:28,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:24:28,804 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2021-10-28 09:24:28,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:24:28,805 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030524217] [2021-10-28 09:24:28,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030524217] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:24:28,805 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:24:28,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 09:24:28,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445008159] [2021-10-28 09:24:28,806 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:24:28,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:28,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 2 times [2021-10-28 09:24:28,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:28,807 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362304459] [2021-10-28 09:24:28,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:28,807 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:28,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:28,816 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:24:28,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:28,821 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:24:28,962 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:24:28,962 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:24:28,962 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:24:28,963 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:24:28,963 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:24:28,963 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:28,963 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:24:28,963 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:24:28,963 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add-1.i_Iteration20_Loop [2021-10-28 09:24:28,963 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:24:28,963 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:24:28,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:24:28,972 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:24:29,226 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:24:29,226 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:24:29,226 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:29,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:29,234 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:29,239 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:24:29,239 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:24:29,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-28 09:24:29,267 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:24:29,267 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_mp_add_~partial_sum~0=0, ULTIMATE.start_mp_add_~carry~0=0} Honda state: {ULTIMATE.start_mp_add_~partial_sum~0=0, ULTIMATE.start_mp_add_~carry~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:24:29,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:29,316 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:29,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:29,318 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:29,320 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:24:29,320 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:24:29,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 09:24:29,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:29,458 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:29,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:29,459 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:29,462 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:24:29,462 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:24:29,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-28 09:24:30,633 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:24:30,638 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-10-28 09:24:30,638 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:24:30,639 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:24:30,639 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:24:30,639 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:24:30,639 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:24:30,639 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:30,639 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:24:30,639 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:24:30,640 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add-1.i_Iteration20_Loop [2021-10-28 09:24:30,640 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:24:30,640 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:24:30,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:24:30,657 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:24:31,008 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:24:31,008 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:24:31,009 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:31,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:31,014 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:31,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-28 09:24:31,017 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:31,026 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:31,026 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:31,027 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:31,027 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:31,027 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:24:31,028 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:24:31,028 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:31,033 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:31,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:31,060 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:31,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:31,061 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:31,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-28 09:24:31,063 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:31,072 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:31,072 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:31,072 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:31,072 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:31,072 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:24:31,077 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:24:31,077 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:31,081 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:31,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:31,107 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 09:24:31,107 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:31,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:31,108 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:31,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-28 09:24:31,110 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:31,120 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:31,120 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:31,120 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:31,120 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:31,120 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:24:31,123 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:24:31,123 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:31,153 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:31,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:31,192 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:31,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:31,194 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:31,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-28 09:24:31,196 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:31,207 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:31,208 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:31,208 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:31,208 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:31,208 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:24:31,212 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:24:31,212 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:31,221 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:31,248 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-10-28 09:24:31,248 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 09:24:31,249 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:31,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:31,250 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:31,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-28 09:24:31,251 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:31,261 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:31,261 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:31,261 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:31,262 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:31,262 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:31,264 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:31,264 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:31,269 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:31,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2021-10-28 09:24:31,294 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:31,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:31,295 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:31,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-28 09:24:31,297 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:31,307 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:31,307 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:31,308 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:31,308 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:31,308 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:31,318 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:31,318 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:31,335 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:31,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:31,383 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 09:24:31,383 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:31,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:31,384 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:31,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-28 09:24:31,389 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:31,399 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:31,399 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:31,400 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:31,400 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:31,400 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:24:31,403 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:24:31,403 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:31,408 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:31,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:31,434 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:31,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:31,435 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:31,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-28 09:24:31,438 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:31,447 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:31,448 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:31,448 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:31,448 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:31,448 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:24:31,457 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:24:31,458 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:31,469 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:31,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:31,497 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 09:24:31,497 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:31,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:31,498 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:31,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-28 09:24:31,500 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:31,509 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:31,510 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:24:31,510 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:31,510 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:31,510 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:31,510 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:24:31,514 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:24:31,514 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:31,529 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:31,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:31,555 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:31,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:31,556 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:31,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-28 09:24:31,558 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:31,567 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:31,567 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:24:31,567 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:31,568 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:31,568 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:31,568 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:24:31,572 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:24:31,573 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:31,583 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:31,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:31,613 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 09:24:31,614 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:31,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:31,615 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:31,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-28 09:24:31,617 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:31,637 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:31,637 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:24:31,637 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:31,637 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:31,638 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:31,638 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:31,642 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:31,642 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:31,652 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:31,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:31,678 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:31,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:31,679 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:31,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-28 09:24:31,683 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 [2021-10-28 09:24:31,693 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:31,693 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:24:31,693 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:31,694 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:31,694 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:31,694 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:31,700 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:31,700 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:31,713 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:31,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2021-10-28 09:24:31,739 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 09:24:31,740 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:31,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:31,741 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:31,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-28 09:24:31,742 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:31,753 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:31,753 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:24:31,753 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:31,753 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:31,753 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:31,753 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:24:31,757 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:24:31,757 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:31,768 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:31,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2021-10-28 09:24:31,795 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:31,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:31,796 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:31,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-28 09:24:31,798 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:31,808 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:31,808 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:24:31,808 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:31,809 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:31,809 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:31,809 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:24:31,823 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:24:31,823 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:31,841 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:31,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2021-10-28 09:24:31,867 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 09:24:31,867 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:31,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:31,868 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:31,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-28 09:24:31,870 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:31,880 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:31,880 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:24:31,880 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:31,880 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:31,880 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:31,880 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:31,883 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:31,883 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:31,888 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:31,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:31,915 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:31,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:31,916 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:31,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-28 09:24:31,918 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:31,928 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:31,928 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:24:31,928 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:31,928 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:31,929 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:31,929 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:31,934 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:31,934 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:31,943 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:31,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:31,969 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 09:24:31,969 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:31,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:31,970 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:31,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-28 09:24:31,972 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:31,982 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:31,982 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:24:31,982 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:31,982 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:31,982 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:31,982 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:24:31,986 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:24:31,986 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:31,995 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:32,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2021-10-28 09:24:32,021 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:32,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:32,022 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:32,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-28 09:24:32,024 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:32,034 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:32,034 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:24:32,034 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:32,034 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:32,034 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:32,034 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:24:32,044 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:24:32,044 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:32,063 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:32,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:32,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:24:32,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:24:32,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:24:32,090 INFO L87 Difference]: Start difference. First operand 374 states and 423 transitions. cyclomatic complexity: 52 Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:32,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:24:32,431 INFO L93 Difference]: Finished difference Result 1030 states and 1154 transitions. [2021-10-28 09:24:32,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:24:32,432 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1030 states and 1154 transitions. [2021-10-28 09:24:32,442 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 129 [2021-10-28 09:24:32,452 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1030 states to 1030 states and 1154 transitions. [2021-10-28 09:24:32,452 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1030 [2021-10-28 09:24:32,454 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1030 [2021-10-28 09:24:32,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1030 states and 1154 transitions. [2021-10-28 09:24:32,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:24:32,456 INFO L681 BuchiCegarLoop]: Abstraction has 1030 states and 1154 transitions. [2021-10-28 09:24:32,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states and 1154 transitions. [2021-10-28 09:24:32,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 374. [2021-10-28 09:24:32,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 374 states have (on average 1.1310160427807487) internal successors, (423), 373 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:32,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 423 transitions. [2021-10-28 09:24:32,473 INFO L704 BuchiCegarLoop]: Abstraction has 374 states and 423 transitions. [2021-10-28 09:24:32,473 INFO L587 BuchiCegarLoop]: Abstraction has 374 states and 423 transitions. [2021-10-28 09:24:32,473 INFO L425 BuchiCegarLoop]: ======== Iteration 21============ [2021-10-28 09:24:32,473 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 374 states and 423 transitions. [2021-10-28 09:24:32,476 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 43 [2021-10-28 09:24:32,477 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:24:32,477 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:24:32,478 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:32,478 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:32,479 INFO L791 eck$LassoCheckResult]: Stem: 20969#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 20965#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~0 := main_#t~nondet4;havoc main_#t~nondet4;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 20955#L51 assume 0 == mp_add_~a3~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 20957#L53 assume 0 == mp_add_~a2~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 20980#L55 assume !(0 == mp_add_~a1~0 % 256); 20981#L51-1 mp_add_~nb~0 := 4; 21222#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 21223#L63 assume !(0 == mp_add_~b2~0 % 256); 21221#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 21219#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 21216#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 21217#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 21211#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 21212#L82-2 assume !(1 == mp_add_~i~0 % 256); 21263#L83-1 assume !(2 == mp_add_~i~0 % 256); 21264#L84-1 assume !(3 == mp_add_~i~0 % 256); 21259#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 21260#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 21255#L91-1 assume !(1 == mp_add_~i~0 % 256); 21256#L92-1 assume !(2 == mp_add_~i~0 % 256); 21251#L93-1 assume !(3 == mp_add_~i~0 % 256); 21252#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 21247#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 21248#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 21035#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 21306#L82 assume !(0 == mp_add_~i~0 % 256); 21305#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 21242#L83-1 assume !(2 == mp_add_~i~0 % 256); 21243#L84-1 assume !(3 == mp_add_~i~0 % 256); 21238#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 21237#L87-1 assume !(0 == mp_add_~i~0 % 256); 21236#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 21235#L92-1 assume !(2 == mp_add_~i~0 % 256); 21234#L93-1 assume !(3 == mp_add_~i~0 % 256); 21233#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 21231#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 21232#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 21308#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 21181#L82 assume !(0 == mp_add_~i~0 % 256); 21226#L82-2 assume !(1 == mp_add_~i~0 % 256); 21227#L83-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b2~0 % 256; 21291#L84-1 assume !(3 == mp_add_~i~0 % 256); 21289#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 21288#L87-1 assume !(0 == mp_add_~i~0 % 256); 21287#L91-1 assume !(1 == mp_add_~i~0 % 256); 21286#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 21284#L93-1 assume !(3 == mp_add_~i~0 % 256); 21281#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 21280#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 21277#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 21276#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 21274#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 21273#L87-1 assume !(0 == mp_add_~i~0 % 256); 21320#L91-1 assume !(1 == mp_add_~i~0 % 256); 21319#L92-1 assume !(2 == mp_add_~i~0 % 256); 21267#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 20967#L94-1 [2021-10-28 09:24:32,479 INFO L793 eck$LassoCheckResult]: Loop: 20967#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 20963#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 20964#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 20982#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 21279#L82 assume !(0 == mp_add_~i~0 % 256); 21278#L82-2 assume !(1 == mp_add_~i~0 % 256); 20988#L83-1 assume !(2 == mp_add_~i~0 % 256); 20989#L84-1 assume !(3 == mp_add_~i~0 % 256); 20974#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 20966#L87-1 assume !(0 == mp_add_~i~0 % 256); 20954#L91-1 assume !(1 == mp_add_~i~0 % 256); 20952#L92-1 assume !(2 == mp_add_~i~0 % 256); 20953#L93-1 assume !(3 == mp_add_~i~0 % 256); 20967#L94-1 [2021-10-28 09:24:32,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:32,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1727477869, now seen corresponding path program 1 times [2021-10-28 09:24:32,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:32,480 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641499498] [2021-10-28 09:24:32,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:32,480 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:32,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:24:32,616 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2021-10-28 09:24:32,616 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:24:32,616 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641499498] [2021-10-28 09:24:32,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641499498] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:24:32,617 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:24:32,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:24:32,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538645047] [2021-10-28 09:24:32,618 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:24:32,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:32,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 3 times [2021-10-28 09:24:32,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:32,619 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667176051] [2021-10-28 09:24:32,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:32,619 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:32,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:32,627 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:24:32,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:32,632 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:24:32,782 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:24:32,782 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:24:32,783 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:24:32,783 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:24:32,783 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:24:32,783 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:32,783 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:24:32,783 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:24:32,783 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add-1.i_Iteration21_Loop [2021-10-28 09:24:32,783 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:24:32,783 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:24:32,784 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:24:32,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:24:33,043 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:24:33,043 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:24:33,043 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:33,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:33,046 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:33,051 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:24:33,051 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:24:33,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-28 09:24:33,082 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:24:33,082 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_mp_add_~partial_sum~0=0, ULTIMATE.start_mp_add_~carry~0=0} Honda state: {ULTIMATE.start_mp_add_~partial_sum~0=0, ULTIMATE.start_mp_add_~carry~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:24:33,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:33,126 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:33,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:33,127 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:33,130 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:24:33,130 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:24:33,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-10-28 09:24:33,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:33,270 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:33,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:33,271 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:33,274 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:24:33,274 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:24:33,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-28 09:24:34,802 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:24:34,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:34,806 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:24:34,806 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:24:34,806 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:24:34,806 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:24:34,807 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:24:34,807 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:34,807 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:24:34,807 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:24:34,807 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add-1.i_Iteration21_Loop [2021-10-28 09:24:34,807 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:24:34,807 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:24:34,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:24:34,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:24:35,055 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:24:35,055 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:24:35,055 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:35,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:35,057 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:35,059 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:35,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-28 09:24:35,075 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:35,075 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:35,075 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:35,076 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:35,076 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:24:35,077 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:24:35,078 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:35,090 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:35,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:35,132 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:35,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:35,134 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:35,136 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:35,148 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:35,148 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:35,149 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:35,149 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:35,149 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:24:35,152 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:24:35,152 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:35,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-28 09:24:35,178 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:35,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:35,222 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 09:24:35,222 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:35,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:35,226 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:35,230 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:35,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:35,242 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:35,242 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:35,242 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:35,242 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:24:35,245 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:24:35,245 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:35,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-28 09:24:35,266 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:35,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:35,308 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:35,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:35,309 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:35,316 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:35,329 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:35,329 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:35,329 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:35,329 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:35,329 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:24:35,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-10-28 09:24:35,334 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:24:35,334 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:35,351 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:35,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:35,394 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 09:24:35,394 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:35,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:35,395 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:35,398 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:35,411 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:35,412 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:35,412 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:35,412 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:35,412 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:35,416 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:35,416 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:35,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-10-28 09:24:35,441 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:35,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2021-10-28 09:24:35,484 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:35,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:35,485 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:35,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-10-28 09:24:35,487 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:35,496 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:35,497 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:35,497 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:35,497 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:35,497 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:35,502 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:35,502 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:35,515 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:35,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:35,558 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 09:24:35,558 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:35,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:35,559 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:35,561 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:35,573 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:35,574 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:35,574 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:35,574 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:35,574 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:24:35,578 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:24:35,578 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:35,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-10-28 09:24:35,597 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:35,635 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2021-10-28 09:24:35,636 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:35,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:35,637 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:35,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-10-28 09:24:35,639 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:35,649 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:35,649 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:35,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:35,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:35,649 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:24:35,655 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:24:35,655 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:35,663 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:35,689 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2021-10-28 09:24:35,690 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 09:24:35,690 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:35,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:35,691 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:35,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-10-28 09:24:35,693 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:35,702 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:35,703 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:24:35,703 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:35,703 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:35,703 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:35,703 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:24:35,706 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:24:35,706 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:35,711 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:35,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:35,736 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:35,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:35,737 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:35,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-10-28 09:24:35,745 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:35,754 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:35,755 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:24:35,755 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:35,755 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:35,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:35,755 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:24:35,759 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:24:35,759 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:35,768 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:35,794 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2021-10-28 09:24:35,795 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 09:24:35,795 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:35,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:35,796 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:35,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-10-28 09:24:35,797 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 [2021-10-28 09:24:35,814 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:35,814 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:24:35,814 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:35,814 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:35,815 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:35,815 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:35,819 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:35,819 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:35,841 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:35,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2021-10-28 09:24:35,874 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:35,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:35,875 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:35,877 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:35,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-10-28 09:24:35,887 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:35,887 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:24:35,887 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:35,887 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:35,887 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:35,888 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:35,893 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:35,894 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:35,917 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:35,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:35,958 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 09:24:35,958 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:35,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:35,960 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:35,968 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:35,980 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:35,980 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:24:35,980 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:35,980 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:35,981 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:35,981 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:24:35,986 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:24:35,986 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:35,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-10-28 09:24:36,007 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:36,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:36,050 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:36,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:36,051 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:36,054 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:36,068 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:36,068 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:24:36,068 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:36,068 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:36,068 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:36,068 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:24:36,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-10-28 09:24:36,079 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:24:36,079 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:36,111 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:36,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:36,153 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 09:24:36,154 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:36,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:36,158 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:36,160 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:36,172 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:36,173 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:24:36,173 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:36,173 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:36,173 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:36,174 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:36,176 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:36,177 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:36,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-10-28 09:24:36,201 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:36,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:36,243 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:36,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:36,244 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:36,246 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:36,258 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:36,258 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:24:36,258 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:36,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:36,259 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:36,259 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:36,265 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:36,265 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:36,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-10-28 09:24:36,285 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:36,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:36,326 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 09:24:36,326 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:36,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:36,328 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:36,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-10-28 09:24:36,348 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:36,360 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:36,360 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:24:36,360 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:36,360 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:36,360 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:36,360 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:24:36,365 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:24:36,365 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:36,380 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:36,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:36,423 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:36,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:36,424 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:36,427 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:36,439 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:36,439 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:24:36,439 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:36,440 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:36,440 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:36,440 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:24:36,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2021-10-28 09:24:36,449 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:24:36,450 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:36,477 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:36,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:36,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:24:36,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:24:36,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:24:36,521 INFO L87 Difference]: Start difference. First operand 374 states and 423 transitions. cyclomatic complexity: 52 Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:36,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:24:36,984 INFO L93 Difference]: Finished difference Result 1363 states and 1526 transitions. [2021-10-28 09:24:36,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:24:36,984 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1363 states and 1526 transitions. [2021-10-28 09:24:36,995 INFO L131 ngComponentsAnalysis]: Automaton has 12 accepting balls. 172 [2021-10-28 09:24:37,007 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1363 states to 1363 states and 1526 transitions. [2021-10-28 09:24:37,008 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1363 [2021-10-28 09:24:37,009 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1363 [2021-10-28 09:24:37,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1363 states and 1526 transitions. [2021-10-28 09:24:37,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:24:37,013 INFO L681 BuchiCegarLoop]: Abstraction has 1363 states and 1526 transitions. [2021-10-28 09:24:37,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states and 1526 transitions. [2021-10-28 09:24:37,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 374. [2021-10-28 09:24:37,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 374 states have (on average 1.1310160427807487) internal successors, (423), 373 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:37,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 423 transitions. [2021-10-28 09:24:37,032 INFO L704 BuchiCegarLoop]: Abstraction has 374 states and 423 transitions. [2021-10-28 09:24:37,032 INFO L587 BuchiCegarLoop]: Abstraction has 374 states and 423 transitions. [2021-10-28 09:24:37,032 INFO L425 BuchiCegarLoop]: ======== Iteration 22============ [2021-10-28 09:24:37,032 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 374 states and 423 transitions. [2021-10-28 09:24:37,035 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 43 [2021-10-28 09:24:37,035 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:24:37,035 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:24:37,036 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:37,036 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:37,037 INFO L791 eck$LassoCheckResult]: Stem: 22721#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 22717#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~0 := main_#t~nondet4;havoc main_#t~nondet4;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 22707#L51 assume 0 == mp_add_~a3~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 22709#L53 assume 0 == mp_add_~a2~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 22732#L55 assume 0 == mp_add_~a1~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 22733#L51-1 mp_add_~nb~0 := 4; 22976#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 22975#L63 assume !(0 == mp_add_~b2~0 % 256); 22972#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 22970#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 22967#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 22968#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 22963#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 22964#L82-2 assume !(1 == mp_add_~i~0 % 256); 23015#L83-1 assume !(2 == mp_add_~i~0 % 256); 23016#L84-1 assume !(3 == mp_add_~i~0 % 256); 23011#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 23012#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 23007#L91-1 assume !(1 == mp_add_~i~0 % 256); 23008#L92-1 assume !(2 == mp_add_~i~0 % 256); 23003#L93-1 assume !(3 == mp_add_~i~0 % 256); 23004#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 22999#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 23000#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 22787#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 23058#L82 assume !(0 == mp_add_~i~0 % 256); 23057#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 22994#L83-1 assume !(2 == mp_add_~i~0 % 256); 22995#L84-1 assume !(3 == mp_add_~i~0 % 256); 22990#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 22989#L87-1 assume !(0 == mp_add_~i~0 % 256); 22988#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 22987#L92-1 assume !(2 == mp_add_~i~0 % 256); 22986#L93-1 assume !(3 == mp_add_~i~0 % 256); 22985#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 22983#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 22984#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 23060#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 22933#L82 assume !(0 == mp_add_~i~0 % 256); 22978#L82-2 assume !(1 == mp_add_~i~0 % 256); 22979#L83-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b2~0 % 256; 23043#L84-1 assume !(3 == mp_add_~i~0 % 256); 23041#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 23040#L87-1 assume !(0 == mp_add_~i~0 % 256); 23039#L91-1 assume !(1 == mp_add_~i~0 % 256); 23038#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 23036#L93-1 assume !(3 == mp_add_~i~0 % 256); 23033#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 23032#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 23029#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 23028#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 23026#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 23025#L87-1 assume !(0 == mp_add_~i~0 % 256); 23072#L91-1 assume !(1 == mp_add_~i~0 % 256); 23071#L92-1 assume !(2 == mp_add_~i~0 % 256); 23019#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 22719#L94-1 [2021-10-28 09:24:37,037 INFO L793 eck$LassoCheckResult]: Loop: 22719#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 22715#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 22716#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 22735#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 23031#L82 assume !(0 == mp_add_~i~0 % 256); 23030#L82-2 assume !(1 == mp_add_~i~0 % 256); 22740#L83-1 assume !(2 == mp_add_~i~0 % 256); 22741#L84-1 assume !(3 == mp_add_~i~0 % 256); 22726#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 22718#L87-1 assume !(0 == mp_add_~i~0 % 256); 22706#L91-1 assume !(1 == mp_add_~i~0 % 256); 22704#L92-1 assume !(2 == mp_add_~i~0 % 256); 22705#L93-1 assume !(3 == mp_add_~i~0 % 256); 22719#L94-1 [2021-10-28 09:24:37,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:37,038 INFO L85 PathProgramCache]: Analyzing trace with hash 189137839, now seen corresponding path program 1 times [2021-10-28 09:24:37,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:37,038 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525362455] [2021-10-28 09:24:37,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:37,038 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:37,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:24:37,164 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2021-10-28 09:24:37,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:24:37,165 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525362455] [2021-10-28 09:24:37,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525362455] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:24:37,165 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:24:37,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 09:24:37,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976230460] [2021-10-28 09:24:37,166 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:24:37,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:37,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 4 times [2021-10-28 09:24:37,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:37,167 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123927193] [2021-10-28 09:24:37,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:37,167 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:37,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:37,174 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:24:37,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:37,179 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:24:37,321 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:24:37,321 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:24:37,321 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:24:37,321 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:24:37,321 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:24:37,321 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:37,321 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:24:37,322 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:24:37,322 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add-1.i_Iteration22_Loop [2021-10-28 09:24:37,322 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:24:37,322 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:24:37,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:24:37,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:24:37,595 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:24:37,595 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:24:37,595 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:37,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:37,596 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:37,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2021-10-28 09:24:37,598 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:24:37,598 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:24:37,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:37,679 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:37,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:37,680 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:37,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2021-10-28 09:24:37,682 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:24:37,682 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:24:38,784 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:24:38,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:38,789 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:24:38,789 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:24:38,789 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:24:38,789 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:24:38,789 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:24:38,789 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:38,789 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:24:38,790 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:24:38,790 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add-1.i_Iteration22_Loop [2021-10-28 09:24:38,790 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:24:38,790 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:24:38,791 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:24:38,809 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:24:38,984 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:24:38,984 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:24:38,984 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:38,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:38,985 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:38,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2021-10-28 09:24:38,986 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:38,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:38,995 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:38,996 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:38,996 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:38,996 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:24:38,998 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:24:38,998 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:39,002 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:39,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:39,027 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:39,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:39,028 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:39,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2021-10-28 09:24:39,030 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:39,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:39,039 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:39,039 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:39,039 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:39,039 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:24:39,040 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:24:39,040 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:39,043 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:39,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:39,069 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 09:24:39,069 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:39,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:39,070 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:39,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2021-10-28 09:24:39,072 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 [2021-10-28 09:24:39,082 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:39,082 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:39,082 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:39,082 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:39,082 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:24:39,086 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:24:39,086 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:39,091 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:39,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Ended with exit code 0 [2021-10-28 09:24:39,117 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:39,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:39,118 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:39,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2021-10-28 09:24:39,119 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:39,129 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:39,129 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:39,129 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:39,129 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:39,129 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:24:39,131 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:24:39,131 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:39,135 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:39,160 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Ended with exit code 0 [2021-10-28 09:24:39,160 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 09:24:39,160 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:39,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:39,161 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:39,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2021-10-28 09:24:39,163 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:39,172 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:39,173 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:39,173 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:39,173 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:39,173 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:39,177 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:39,177 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:39,184 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:39,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:39,210 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:39,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:39,211 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:39,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2021-10-28 09:24:39,213 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:39,222 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:39,222 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:39,223 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:39,223 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:39,223 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:39,225 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:39,225 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:39,229 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:39,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:39,255 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 09:24:39,256 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:39,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:39,257 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:39,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2021-10-28 09:24:39,258 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:39,268 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:39,268 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:39,268 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:39,269 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:39,269 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:24:39,275 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:24:39,276 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:39,287 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:39,313 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Ended with exit code 0 [2021-10-28 09:24:39,313 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:39,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:39,315 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:39,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2021-10-28 09:24:39,316 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:39,326 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:39,327 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:39,327 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:39,327 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:39,327 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:24:39,330 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:24:39,330 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:39,335 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:39,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:39,361 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 09:24:39,362 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:39,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:39,363 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:39,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2021-10-28 09:24:39,365 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:39,374 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:39,375 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:24:39,375 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:39,375 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:39,375 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:39,375 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:24:39,379 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:24:39,379 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:39,405 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:39,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:39,450 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:39,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:39,451 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:39,458 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:39,470 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:39,470 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:24:39,470 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:39,471 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:39,471 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:39,471 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:24:39,473 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:24:39,474 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:39,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2021-10-28 09:24:39,493 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:39,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:39,536 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 09:24:39,536 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:39,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:39,538 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:39,541 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:39,553 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:39,553 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:24:39,553 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:39,554 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:39,554 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:39,554 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:39,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2021-10-28 09:24:39,561 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:39,562 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:39,585 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:39,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:39,631 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:39,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:39,632 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:39,638 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:39,650 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:39,650 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:24:39,650 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:39,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Waiting until timeout for monitored process [2021-10-28 09:24:39,650 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:39,651 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:39,651 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:39,655 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:39,656 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:39,673 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:39,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:39,714 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 09:24:39,715 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:39,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:39,716 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:39,723 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:39,736 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:39,736 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:24:39,736 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:39,737 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:39,737 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:39,737 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:24:39,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Waiting until timeout for monitored process [2021-10-28 09:24:39,747 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:24:39,747 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:39,773 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:39,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:39,819 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:39,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:39,821 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:39,824 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:39,837 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:39,837 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:24:39,837 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:39,837 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:39,837 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:39,837 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:24:39,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process [2021-10-28 09:24:39,843 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:24:39,843 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:39,865 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:39,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:39,907 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 09:24:39,908 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:39,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:39,910 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:39,913 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:39,925 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:39,925 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:24:39,925 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:39,926 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:39,926 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:39,926 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:39,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2021-10-28 09:24:39,932 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:39,932 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:39,953 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:39,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:39,997 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:39,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:40,001 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:40,005 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:40,017 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:40,017 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:24:40,018 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:40,018 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:40,018 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:40,018 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:40,021 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:40,021 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:40,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Waiting until timeout for monitored process [2021-10-28 09:24:40,037 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:40,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:40,075 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 09:24:40,075 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:40,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:40,081 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:40,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Waiting until timeout for monitored process [2021-10-28 09:24:40,083 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:40,093 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:40,093 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:24:40,093 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:40,093 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:40,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:40,093 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:24:40,102 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:24:40,102 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:40,115 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:40,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:40,140 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:40,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:40,141 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:40,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Waiting until timeout for monitored process [2021-10-28 09:24:40,142 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:40,152 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:40,152 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:24:40,152 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:40,152 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:40,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:40,152 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:24:40,155 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:24:40,156 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:40,164 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:40,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Ended with exit code 0 [2021-10-28 09:24:40,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:24:40,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:24:40,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:24:40,191 INFO L87 Difference]: Start difference. First operand 374 states and 423 transitions. cyclomatic complexity: 52 Second operand has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:40,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:24:40,761 INFO L93 Difference]: Finished difference Result 1337 states and 1496 transitions. [2021-10-28 09:24:40,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 09:24:40,762 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1337 states and 1496 transitions. [2021-10-28 09:24:40,780 INFO L131 ngComponentsAnalysis]: Automaton has 12 accepting balls. 172 [2021-10-28 09:24:40,794 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1337 states to 1337 states and 1496 transitions. [2021-10-28 09:24:40,794 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1337 [2021-10-28 09:24:40,796 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1337 [2021-10-28 09:24:40,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1337 states and 1496 transitions. [2021-10-28 09:24:40,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:24:40,799 INFO L681 BuchiCegarLoop]: Abstraction has 1337 states and 1496 transitions. [2021-10-28 09:24:40,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1337 states and 1496 transitions. [2021-10-28 09:24:40,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1337 to 338. [2021-10-28 09:24:40,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 338 states have (on average 1.1242603550295858) internal successors, (380), 337 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:40,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 380 transitions. [2021-10-28 09:24:40,816 INFO L704 BuchiCegarLoop]: Abstraction has 338 states and 380 transitions. [2021-10-28 09:24:40,816 INFO L587 BuchiCegarLoop]: Abstraction has 338 states and 380 transitions. [2021-10-28 09:24:40,816 INFO L425 BuchiCegarLoop]: ======== Iteration 23============ [2021-10-28 09:24:40,817 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 338 states and 380 transitions. [2021-10-28 09:24:40,821 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 43 [2021-10-28 09:24:40,821 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:24:40,821 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:24:40,822 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:40,823 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:40,823 INFO L791 eck$LassoCheckResult]: Stem: 24452#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 24445#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~0 := main_#t~nondet4;havoc main_#t~nondet4;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 24433#L51 assume !(0 == mp_add_~a3~0 % 256); 24434#L51-1 mp_add_~nb~0 := 4; 24436#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 24438#L63 assume !(0 == mp_add_~b2~0 % 256); 24439#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 24450#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 24528#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 24527#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 24526#L76-2 assume !(1 == mp_add_~i~0 % 256); 24525#L77-1 assume !(2 == mp_add_~i~0 % 256); 24524#L78-1 assume !(3 == mp_add_~i~0 % 256); 24522#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 24521#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 24520#L82-2 assume !(1 == mp_add_~i~0 % 256); 24519#L83-1 assume !(2 == mp_add_~i~0 % 256); 24518#L84-1 assume !(3 == mp_add_~i~0 % 256); 24517#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 24516#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 24515#L91-1 assume !(1 == mp_add_~i~0 % 256); 24514#L92-1 assume !(2 == mp_add_~i~0 % 256); 24513#L93-1 assume !(3 == mp_add_~i~0 % 256); 24512#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 24511#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 24508#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 24510#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 24763#L82 assume !(0 == mp_add_~i~0 % 256); 24762#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 24761#L83-1 assume !(2 == mp_add_~i~0 % 256); 24760#L84-1 assume !(3 == mp_add_~i~0 % 256); 24759#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 24758#L87-1 assume !(0 == mp_add_~i~0 % 256); 24757#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 24756#L92-1 assume !(2 == mp_add_~i~0 % 256); 24755#L93-1 assume !(3 == mp_add_~i~0 % 256); 24753#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 24751#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 24749#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 24748#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 24613#L82 assume !(0 == mp_add_~i~0 % 256); 24744#L82-2 assume !(1 == mp_add_~i~0 % 256); 24743#L83-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b2~0 % 256; 24741#L84-1 assume !(3 == mp_add_~i~0 % 256); 24739#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 24737#L87-1 assume !(0 == mp_add_~i~0 % 256); 24735#L91-1 assume !(1 == mp_add_~i~0 % 256); 24733#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 24731#L93-1 assume !(3 == mp_add_~i~0 % 256); 24729#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 24728#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 24722#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 24720#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 24718#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 24717#L87-1 assume !(0 == mp_add_~i~0 % 256); 24754#L91-1 assume !(1 == mp_add_~i~0 % 256); 24752#L92-1 assume !(2 == mp_add_~i~0 % 256); 24750#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 24451#L94-1 [2021-10-28 09:24:40,823 INFO L793 eck$LassoCheckResult]: Loop: 24451#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 24747#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 24746#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 24547#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 24458#L82 assume !(0 == mp_add_~i~0 % 256); 24459#L82-2 assume !(1 == mp_add_~i~0 % 256); 24471#L83-1 assume !(2 == mp_add_~i~0 % 256); 24472#L84-1 assume !(3 == mp_add_~i~0 % 256); 24742#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 24740#L87-1 assume !(0 == mp_add_~i~0 % 256); 24738#L91-1 assume !(1 == mp_add_~i~0 % 256); 24443#L92-1 assume !(2 == mp_add_~i~0 % 256); 24444#L93-1 assume !(3 == mp_add_~i~0 % 256); 24451#L94-1 [2021-10-28 09:24:40,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:40,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1803371216, now seen corresponding path program 1 times [2021-10-28 09:24:40,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:40,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230838748] [2021-10-28 09:24:40,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:40,825 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:40,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:24:40,960 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 37 proven. 5 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-28 09:24:40,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:24:40,961 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230838748] [2021-10-28 09:24:40,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230838748] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:24:40,961 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742667336] [2021-10-28 09:24:40,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:40,962 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:24:40,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:40,963 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:24:40,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Waiting until timeout for monitored process [2021-10-28 09:24:41,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:24:41,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:24:41,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:24:41,721 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 37 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-10-28 09:24:41,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742667336] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:24:41,722 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:24:41,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2021-10-28 09:24:41,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268945721] [2021-10-28 09:24:41,725 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:24:41,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:41,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 5 times [2021-10-28 09:24:41,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:41,726 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968568114] [2021-10-28 09:24:41,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:41,726 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:41,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:41,733 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:24:41,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:41,738 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:24:41,885 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:24:41,886 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:24:41,886 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:24:41,886 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:24:41,886 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:24:41,886 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:41,886 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:24:41,886 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:24:41,886 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add-1.i_Iteration23_Loop [2021-10-28 09:24:41,886 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:24:41,886 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:24:41,888 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:24:41,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:24:42,146 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:24:42,146 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:24:42,147 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:42,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:42,150 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:42,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Waiting until timeout for monitored process [2021-10-28 09:24:42,152 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:24:42,152 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:24:42,172 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:24:42,172 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_mp_add_~partial_sum~0=0, ULTIMATE.start_mp_add_~carry~0=0} Honda state: {ULTIMATE.start_mp_add_~partial_sum~0=0, ULTIMATE.start_mp_add_~carry~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:24:42,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:42,199 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:42,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:42,200 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:42,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Waiting until timeout for monitored process [2021-10-28 09:24:42,202 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:24:42,202 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:24:42,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:42,287 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:42,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:42,287 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:42,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Waiting until timeout for monitored process [2021-10-28 09:24:42,289 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:24:42,289 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:24:42,831 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:24:42,835 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Ended with exit code 0 [2021-10-28 09:24:42,836 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:24:42,836 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:24:42,836 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:24:42,836 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:24:42,836 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:24:42,836 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:42,836 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:24:42,836 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:24:42,836 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add-1.i_Iteration23_Loop [2021-10-28 09:24:42,837 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:24:42,837 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:24:42,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:24:42,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:24:43,095 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:24:43,096 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:24:43,096 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:43,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:43,098 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:43,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Waiting until timeout for monitored process [2021-10-28 09:24:43,100 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:43,109 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:43,109 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:43,109 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:43,109 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:43,109 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:24:43,111 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:24:43,111 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:43,113 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:43,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:43,139 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:43,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:43,140 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:43,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Waiting until timeout for monitored process [2021-10-28 09:24:43,144 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:43,153 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:43,153 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:43,153 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:43,153 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:43,153 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:24:43,156 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:24:43,156 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:43,160 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:43,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:43,185 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 09:24:43,185 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:43,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:43,186 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:43,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Waiting until timeout for monitored process [2021-10-28 09:24:43,187 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:43,196 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:43,196 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:43,196 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:43,197 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:43,197 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:24:43,198 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:24:43,198 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:43,202 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:43,226 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Ended with exit code 0 [2021-10-28 09:24:43,227 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:43,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:43,228 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:43,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Waiting until timeout for monitored process [2021-10-28 09:24:43,229 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:43,239 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:43,239 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:43,239 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:43,239 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:43,239 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:24:43,243 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:24:43,243 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:43,269 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:43,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:43,306 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 09:24:43,306 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:43,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:43,307 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:43,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Waiting until timeout for monitored process [2021-10-28 09:24:43,309 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:43,318 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:43,318 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:43,318 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:43,318 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:43,319 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:43,321 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:43,321 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:43,325 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:43,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:43,351 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:43,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:43,352 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:43,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Waiting until timeout for monitored process [2021-10-28 09:24:43,354 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:43,364 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:43,364 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:43,364 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:43,364 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:43,364 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:43,368 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:43,369 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:43,375 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:43,400 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Ended with exit code 0 [2021-10-28 09:24:43,401 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 09:24:43,401 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:43,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:43,402 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:43,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Waiting until timeout for monitored process [2021-10-28 09:24:43,404 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:43,413 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:43,413 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:43,413 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:43,413 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:43,413 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:24:43,416 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:24:43,416 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:43,421 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:43,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:43,446 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:43,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:43,448 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:43,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Waiting until timeout for monitored process [2021-10-28 09:24:43,449 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:43,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:43,459 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:43,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:43,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:43,459 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:24:43,464 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:24:43,464 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:43,472 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:43,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Ended with exit code 0 [2021-10-28 09:24:43,499 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 09:24:43,499 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:43,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:43,500 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:43,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Waiting until timeout for monitored process [2021-10-28 09:24:43,504 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:43,513 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:43,513 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:24:43,514 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:43,514 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:43,514 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:43,514 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:24:43,516 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:24:43,516 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:43,521 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:43,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Ended with exit code 0 [2021-10-28 09:24:43,547 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:43,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:43,548 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:43,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Waiting until timeout for monitored process [2021-10-28 09:24:43,551 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:43,561 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:43,561 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:24:43,561 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:43,561 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:43,561 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:43,561 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:24:43,565 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:24:43,565 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:43,574 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:43,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:43,599 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 09:24:43,599 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:43,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:43,600 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:43,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Waiting until timeout for monitored process [2021-10-28 09:24:43,602 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:43,611 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:43,612 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:24:43,612 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:43,612 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:43,612 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:43,612 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:43,614 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:43,615 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:43,622 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:43,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Ended with exit code 0 [2021-10-28 09:24:43,651 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:43,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:43,676 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:43,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Waiting until timeout for monitored process [2021-10-28 09:24:43,681 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:43,691 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:43,691 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:24:43,691 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:43,691 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:43,691 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:43,692 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:43,698 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:43,699 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:43,729 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:43,757 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Ended with exit code 0 [2021-10-28 09:24:43,758 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 09:24:43,758 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:43,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:43,759 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:43,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Waiting until timeout for monitored process [2021-10-28 09:24:43,761 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:43,771 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:43,771 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:24:43,771 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:43,771 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:43,771 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:43,771 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:24:43,775 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:24:43,775 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:43,785 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:43,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Ended with exit code 0 [2021-10-28 09:24:43,810 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:43,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:43,811 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:43,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Waiting until timeout for monitored process [2021-10-28 09:24:43,812 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:43,823 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:43,823 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:24:43,823 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:43,823 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:43,823 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:43,823 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:24:43,832 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:24:43,832 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:43,861 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:43,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:43,904 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 09:24:43,904 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:43,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:43,905 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:43,914 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:43,926 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:43,926 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:24:43,926 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:43,926 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:43,926 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:43,926 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:43,930 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:43,930 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:43,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Waiting until timeout for monitored process [2021-10-28 09:24:43,949 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:43,982 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Ended with exit code 0 [2021-10-28 09:24:43,982 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:43,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:43,983 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:43,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Waiting until timeout for monitored process [2021-10-28 09:24:43,985 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:43,995 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:43,995 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:24:43,995 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:43,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:43,995 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:43,995 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:44,000 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:44,000 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:44,008 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:44,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:44,033 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 09:24:44,034 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:44,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:44,035 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:44,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Waiting until timeout for monitored process [2021-10-28 09:24:44,036 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:44,046 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:44,046 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:24:44,046 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:44,046 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:44,046 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:44,046 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:24:44,050 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:24:44,050 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:44,058 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:44,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:44,083 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:44,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:44,084 INFO L229 MonitoredProcess]: Starting monitored process 115 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:44,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Waiting until timeout for monitored process [2021-10-28 09:24:44,085 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:44,095 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:44,095 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:24:44,095 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:44,095 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:44,095 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:44,096 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:24:44,102 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:24:44,102 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:44,115 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:44,140 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Ended with exit code 0 [2021-10-28 09:24:44,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:24:44,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:24:44,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:24:44,141 INFO L87 Difference]: Start difference. First operand 338 states and 380 transitions. cyclomatic complexity: 45 Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:44,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:24:44,422 INFO L93 Difference]: Finished difference Result 602 states and 669 transitions. [2021-10-28 09:24:44,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:24:44,423 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 602 states and 669 transitions. [2021-10-28 09:24:44,427 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 86 [2021-10-28 09:24:44,433 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 602 states to 578 states and 642 transitions. [2021-10-28 09:24:44,433 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 578 [2021-10-28 09:24:44,434 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 578 [2021-10-28 09:24:44,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 578 states and 642 transitions. [2021-10-28 09:24:44,435 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:24:44,436 INFO L681 BuchiCegarLoop]: Abstraction has 578 states and 642 transitions. [2021-10-28 09:24:44,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states and 642 transitions. [2021-10-28 09:24:44,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 450. [2021-10-28 09:24:44,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 450 states have (on average 1.12) internal successors, (504), 449 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:44,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 504 transitions. [2021-10-28 09:24:44,449 INFO L704 BuchiCegarLoop]: Abstraction has 450 states and 504 transitions. [2021-10-28 09:24:44,449 INFO L587 BuchiCegarLoop]: Abstraction has 450 states and 504 transitions. [2021-10-28 09:24:44,449 INFO L425 BuchiCegarLoop]: ======== Iteration 24============ [2021-10-28 09:24:44,450 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 450 states and 504 transitions. [2021-10-28 09:24:44,452 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 43 [2021-10-28 09:24:44,452 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:24:44,452 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:24:44,453 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:44,454 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:44,454 INFO L791 eck$LassoCheckResult]: Stem: 25578#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 25570#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~0 := main_#t~nondet4;havoc main_#t~nondet4;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 25558#L51 assume !(0 == mp_add_~a3~0 % 256); 25559#L51-1 mp_add_~nb~0 := 4; 25775#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 25564#L63 assume !(0 == mp_add_~b2~0 % 256); 25565#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 25702#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 25703#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 25698#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 25699#L76-2 assume !(1 == mp_add_~i~0 % 256); 25690#L77-1 assume !(2 == mp_add_~i~0 % 256); 25691#L78-1 assume !(3 == mp_add_~i~0 % 256); 25682#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 25679#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 25675#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 25670#L91-1 assume !(1 == mp_add_~i~0 % 256); 25665#L92-1 assume !(2 == mp_add_~i~0 % 256); 25660#L93-1 assume !(3 == mp_add_~i~0 % 256); 25655#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 25651#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 25648#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 25644#L76 assume !(0 == mp_add_~i~0 % 256); 25640#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 25636#L77-1 assume !(2 == mp_add_~i~0 % 256); 25632#L78-1 assume !(3 == mp_add_~i~0 % 256); 25629#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 25628#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 25627#L87-1 assume !(0 == mp_add_~i~0 % 256); 25626#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 25625#L92-1 assume !(2 == mp_add_~i~0 % 256); 25624#L93-1 assume !(3 == mp_add_~i~0 % 256); 25623#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 25622#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 25621#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 25620#L76 assume !(0 == mp_add_~i~0 % 256); 25619#L76-2 assume !(1 == mp_add_~i~0 % 256); 25618#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 25617#L78-1 assume !(3 == mp_add_~i~0 % 256); 25616#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 25615#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 25614#L87-1 assume !(0 == mp_add_~i~0 % 256); 25613#L91-1 assume !(1 == mp_add_~i~0 % 256); 25612#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 25611#L93-1 assume !(3 == mp_add_~i~0 % 256); 25610#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 25609#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 25608#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 25607#L76 assume !(0 == mp_add_~i~0 % 256); 25606#L76-2 assume !(1 == mp_add_~i~0 % 256); 25605#L77-1 assume !(2 == mp_add_~i~0 % 256); 25602#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 25603#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 25678#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 25673#L87-1 assume !(0 == mp_add_~i~0 % 256); 25668#L91-1 assume !(1 == mp_add_~i~0 % 256); 25663#L92-1 assume !(2 == mp_add_~i~0 % 256); 25658#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 25654#L94-1 [2021-10-28 09:24:44,454 INFO L793 eck$LassoCheckResult]: Loop: 25654#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 25650#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 25647#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 25643#L76 assume !(0 == mp_add_~i~0 % 256); 25639#L76-2 assume !(1 == mp_add_~i~0 % 256); 25635#L77-1 assume !(2 == mp_add_~i~0 % 256); 25604#L78-1 assume !(3 == mp_add_~i~0 % 256); 25591#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 25592#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 25674#L87-1 assume !(0 == mp_add_~i~0 % 256); 25669#L91-1 assume !(1 == mp_add_~i~0 % 256); 25664#L92-1 assume !(2 == mp_add_~i~0 % 256); 25659#L93-1 assume !(3 == mp_add_~i~0 % 256); 25654#L94-1 [2021-10-28 09:24:44,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:44,455 INFO L85 PathProgramCache]: Analyzing trace with hash -770601916, now seen corresponding path program 1 times [2021-10-28 09:24:44,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:44,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097515122] [2021-10-28 09:24:44,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:44,456 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:44,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:24:44,547 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-10-28 09:24:44,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:24:44,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097515122] [2021-10-28 09:24:44,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097515122] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:24:44,548 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:24:44,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 09:24:44,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859627955] [2021-10-28 09:24:44,549 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:24:44,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:44,550 INFO L85 PathProgramCache]: Analyzing trace with hash 672830572, now seen corresponding path program 1 times [2021-10-28 09:24:44,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:44,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667412790] [2021-10-28 09:24:44,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:44,551 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:44,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:44,557 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:24:44,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:44,562 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:24:44,733 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:24:44,733 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:24:44,733 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:24:44,733 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:24:44,733 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:24:44,734 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:44,734 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:24:44,734 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:24:44,734 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add-1.i_Iteration24_Loop [2021-10-28 09:24:44,734 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:24:44,734 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:24:44,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:24:44,755 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:24:45,019 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:24:45,019 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:24:45,019 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:45,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:45,020 INFO L229 MonitoredProcess]: Starting monitored process 116 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:45,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Waiting until timeout for monitored process [2021-10-28 09:24:45,022 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:24:45,022 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:24:45,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:45,087 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:45,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:45,088 INFO L229 MonitoredProcess]: Starting monitored process 117 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:45,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (117)] Waiting until timeout for monitored process [2021-10-28 09:24:45,089 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:24:45,089 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:24:45,683 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:24:45,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (117)] Ended with exit code 0 [2021-10-28 09:24:45,690 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:24:45,690 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:24:45,690 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:24:45,690 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:24:45,691 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:24:45,691 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:45,691 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:24:45,691 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:24:45,691 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add-1.i_Iteration24_Loop [2021-10-28 09:24:45,691 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:24:45,691 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:24:45,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:24:45,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:24:45,899 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:24:45,899 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:24:45,900 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:45,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:45,901 INFO L229 MonitoredProcess]: Starting monitored process 118 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:45,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (118)] Waiting until timeout for monitored process [2021-10-28 09:24:45,905 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:45,914 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:45,914 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:45,914 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:45,914 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:45,914 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:24:45,916 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:24:45,916 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:45,920 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:45,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (118)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:45,945 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:45,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:45,946 INFO L229 MonitoredProcess]: Starting monitored process 119 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:45,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (119)] Waiting until timeout for monitored process [2021-10-28 09:24:45,947 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:45,956 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:45,956 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:45,956 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:45,956 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:45,956 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:24:45,958 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:24:45,958 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:45,960 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:45,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (119)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:45,986 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 09:24:45,986 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:45,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:45,987 INFO L229 MonitoredProcess]: Starting monitored process 120 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:45,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (120)] Waiting until timeout for monitored process [2021-10-28 09:24:45,988 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 [2021-10-28 09:24:45,998 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:45,998 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:45,998 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:45,998 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:45,998 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:24:46,001 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:24:46,001 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:46,007 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:46,032 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (120)] Ended with exit code 0 [2021-10-28 09:24:46,033 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:46,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:46,034 INFO L229 MonitoredProcess]: Starting monitored process 121 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:46,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (121)] Waiting until timeout for monitored process [2021-10-28 09:24:46,035 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:46,044 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:46,044 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:46,044 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:46,044 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:46,044 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:24:46,046 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:24:46,046 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:46,049 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:46,074 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (121)] Ended with exit code 0 [2021-10-28 09:24:46,075 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 09:24:46,075 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:46,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:46,076 INFO L229 MonitoredProcess]: Starting monitored process 122 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:46,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (122)] Waiting until timeout for monitored process [2021-10-28 09:24:46,077 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:46,087 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:46,087 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:46,087 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:46,087 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:46,087 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:46,092 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:46,092 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:46,098 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:46,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (122)] Ended with exit code 0 [2021-10-28 09:24:46,124 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:46,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:46,125 INFO L229 MonitoredProcess]: Starting monitored process 123 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:46,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (123)] Waiting until timeout for monitored process [2021-10-28 09:24:46,127 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:46,136 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:46,136 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:46,136 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:46,136 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:46,136 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:46,138 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:46,138 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:46,143 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:46,168 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (123)] Ended with exit code 0 [2021-10-28 09:24:46,168 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 09:24:46,168 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:46,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:46,169 INFO L229 MonitoredProcess]: Starting monitored process 124 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:46,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (124)] Waiting until timeout for monitored process [2021-10-28 09:24:46,170 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:46,180 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:46,180 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:46,180 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:46,180 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:46,181 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:24:46,187 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:24:46,187 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:46,195 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:46,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (124)] Ended with exit code 0 [2021-10-28 09:24:46,220 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:46,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:46,221 INFO L229 MonitoredProcess]: Starting monitored process 125 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:46,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (125)] Waiting until timeout for monitored process [2021-10-28 09:24:46,223 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:46,233 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:46,233 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:46,233 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:46,233 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:46,233 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:24:46,236 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:24:46,236 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:46,241 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:46,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (125)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:46,266 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 09:24:46,266 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:46,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:46,267 INFO L229 MonitoredProcess]: Starting monitored process 126 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:46,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (126)] Waiting until timeout for monitored process [2021-10-28 09:24:46,268 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:46,277 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:46,277 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:24:46,278 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:46,278 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:46,278 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:46,278 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:24:46,281 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:24:46,281 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:46,290 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:46,315 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (126)] Ended with exit code 0 [2021-10-28 09:24:46,315 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:46,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:46,316 INFO L229 MonitoredProcess]: Starting monitored process 127 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:46,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (127)] Waiting until timeout for monitored process [2021-10-28 09:24:46,318 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:46,328 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:46,328 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:24:46,328 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:46,328 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:46,328 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:46,328 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:24:46,330 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:24:46,330 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:46,335 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:46,360 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (127)] Ended with exit code 0 [2021-10-28 09:24:46,361 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 09:24:46,361 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:46,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:46,362 INFO L229 MonitoredProcess]: Starting monitored process 128 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:46,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (128)] Waiting until timeout for monitored process [2021-10-28 09:24:46,368 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:46,378 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:46,378 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:24:46,378 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:46,378 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:46,378 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:46,378 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:46,383 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:46,383 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:46,397 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:46,422 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (128)] Ended with exit code 0 [2021-10-28 09:24:46,422 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:46,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:46,430 INFO L229 MonitoredProcess]: Starting monitored process 129 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:46,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (129)] Waiting until timeout for monitored process [2021-10-28 09:24:46,435 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:46,445 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:46,445 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:24:46,445 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:46,445 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:46,446 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:46,446 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:46,461 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:46,461 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:46,468 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:46,494 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (129)] Ended with exit code 0 [2021-10-28 09:24:46,494 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 09:24:46,494 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:46,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:46,495 INFO L229 MonitoredProcess]: Starting monitored process 130 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:46,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (130)] Waiting until timeout for monitored process [2021-10-28 09:24:46,497 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:46,507 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:46,507 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:24:46,507 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:46,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:46,507 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:46,507 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:24:46,514 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:24:46,514 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:46,545 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:46,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (130)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:46,589 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:46,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:46,590 INFO L229 MonitoredProcess]: Starting monitored process 131 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:46,598 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:46,611 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:46,611 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:24:46,611 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:46,612 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:46,612 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:46,612 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:24:46,616 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:24:46,617 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:46,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (131)] Waiting until timeout for monitored process [2021-10-28 09:24:46,649 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:46,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (131)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:46,693 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 09:24:46,693 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:46,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:46,694 INFO L229 MonitoredProcess]: Starting monitored process 132 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:46,697 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:46,709 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:46,709 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:24:46,709 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:46,709 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:46,710 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:46,710 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:46,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (132)] Waiting until timeout for monitored process [2021-10-28 09:24:46,716 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:46,716 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:46,730 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:46,759 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (132)] Ended with exit code 0 [2021-10-28 09:24:46,759 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:46,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:46,761 INFO L229 MonitoredProcess]: Starting monitored process 133 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:46,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (133)] Waiting until timeout for monitored process [2021-10-28 09:24:46,763 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:46,772 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:46,772 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:24:46,772 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:46,772 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:46,772 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:46,772 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:46,775 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:46,775 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:46,780 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:46,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (133)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:46,806 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 09:24:46,806 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:46,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:46,807 INFO L229 MonitoredProcess]: Starting monitored process 134 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:46,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (134)] Waiting until timeout for monitored process [2021-10-28 09:24:46,810 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:46,819 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:46,820 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:24:46,820 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:46,820 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:46,820 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:46,820 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:24:46,827 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:24:46,827 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:46,840 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:46,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (134)] Ended with exit code 0 [2021-10-28 09:24:46,884 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:46,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:46,886 INFO L229 MonitoredProcess]: Starting monitored process 135 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:46,898 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:46,911 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:46,911 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:24:46,912 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:46,912 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:46,912 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:46,912 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:24:46,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (135)] Waiting until timeout for monitored process [2021-10-28 09:24:46,917 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:24:46,918 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:46,927 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:46,953 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (135)] Ended with exit code 0 [2021-10-28 09:24:46,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:24:46,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:24:46,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:24:46,955 INFO L87 Difference]: Start difference. First operand 450 states and 504 transitions. cyclomatic complexity: 57 Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:47,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:24:47,219 INFO L93 Difference]: Finished difference Result 813 states and 904 transitions. [2021-10-28 09:24:47,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:24:47,220 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 813 states and 904 transitions. [2021-10-28 09:24:47,226 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 116 [2021-10-28 09:24:47,238 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 813 states to 813 states and 904 transitions. [2021-10-28 09:24:47,238 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 813 [2021-10-28 09:24:47,254 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 813 [2021-10-28 09:24:47,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 813 states and 904 transitions. [2021-10-28 09:24:47,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:24:47,255 INFO L681 BuchiCegarLoop]: Abstraction has 813 states and 904 transitions. [2021-10-28 09:24:47,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states and 904 transitions. [2021-10-28 09:24:47,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 466. [2021-10-28 09:24:47,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 466 states have (on average 1.1158798283261802) internal successors, (520), 465 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:47,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 520 transitions. [2021-10-28 09:24:47,270 INFO L704 BuchiCegarLoop]: Abstraction has 466 states and 520 transitions. [2021-10-28 09:24:47,270 INFO L587 BuchiCegarLoop]: Abstraction has 466 states and 520 transitions. [2021-10-28 09:24:47,270 INFO L425 BuchiCegarLoop]: ======== Iteration 25============ [2021-10-28 09:24:47,271 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 466 states and 520 transitions. [2021-10-28 09:24:47,273 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 43 [2021-10-28 09:24:47,273 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:24:47,273 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:24:47,274 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:47,274 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:47,275 INFO L791 eck$LassoCheckResult]: Stem: 26856#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 26847#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~0 := main_#t~nondet4;havoc main_#t~nondet4;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 26836#L51 assume !(0 == mp_add_~a3~0 % 256); 26837#L51-1 mp_add_~nb~0 := 4; 26839#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 26841#L63 assume 0 == mp_add_~b2~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 27104#L65 assume 0 == mp_add_~b1~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 26929#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 26930#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 26925#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 26926#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 26921#L76-2 assume !(1 == mp_add_~i~0 % 256); 26922#L77-1 assume !(2 == mp_add_~i~0 % 256); 26917#L78-1 assume !(3 == mp_add_~i~0 % 256); 26918#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 26916#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 26969#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 26968#L91-1 assume !(1 == mp_add_~i~0 % 256); 26967#L92-1 assume !(2 == mp_add_~i~0 % 256); 26966#L93-1 assume !(3 == mp_add_~i~0 % 256); 26965#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 26964#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 26963#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 26962#L76 assume !(0 == mp_add_~i~0 % 256); 26961#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 26960#L77-1 assume !(2 == mp_add_~i~0 % 256); 26959#L78-1 assume !(3 == mp_add_~i~0 % 256); 26886#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 26883#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 26882#L87-1 assume !(0 == mp_add_~i~0 % 256); 26881#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 26880#L92-1 assume !(2 == mp_add_~i~0 % 256); 26879#L93-1 assume !(3 == mp_add_~i~0 % 256); 26878#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 26877#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 26876#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 26875#L76 assume !(0 == mp_add_~i~0 % 256); 26874#L76-2 assume !(1 == mp_add_~i~0 % 256); 26873#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 26861#L78-1 assume !(3 == mp_add_~i~0 % 256); 26862#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 26860#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 26848#L87-1 assume !(0 == mp_add_~i~0 % 256); 26835#L91-1 assume !(1 == mp_add_~i~0 % 256); 26833#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 26834#L93-1 assume !(3 == mp_add_~i~0 % 256); 26855#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 26845#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 26846#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 27292#L76 assume !(0 == mp_add_~i~0 % 256); 27291#L76-2 assume !(1 == mp_add_~i~0 % 256); 27290#L77-1 assume !(2 == mp_add_~i~0 % 256); 27289#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 27288#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 27287#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 27286#L87-1 assume !(0 == mp_add_~i~0 % 256); 27285#L91-1 assume !(1 == mp_add_~i~0 % 256); 27284#L92-1 assume !(2 == mp_add_~i~0 % 256); 27283#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 26851#L94-1 [2021-10-28 09:24:47,275 INFO L793 eck$LassoCheckResult]: Loop: 26851#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 26852#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 27015#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 26871#L76 assume !(0 == mp_add_~i~0 % 256); 26859#L76-2 assume !(1 == mp_add_~i~0 % 256); 26857#L77-1 assume !(2 == mp_add_~i~0 % 256); 26858#L78-1 assume !(3 == mp_add_~i~0 % 256); 27298#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 27297#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 27296#L87-1 assume !(0 == mp_add_~i~0 % 256); 27295#L91-1 assume !(1 == mp_add_~i~0 % 256); 27294#L92-1 assume !(2 == mp_add_~i~0 % 256); 27293#L93-1 assume !(3 == mp_add_~i~0 % 256); 26851#L94-1 [2021-10-28 09:24:47,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:47,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1789197322, now seen corresponding path program 1 times [2021-10-28 09:24:47,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:47,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471358845] [2021-10-28 09:24:47,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:47,277 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:47,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:24:47,432 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-10-28 09:24:47,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:24:47,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471358845] [2021-10-28 09:24:47,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471358845] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:24:47,433 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:24:47,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 09:24:47,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128128256] [2021-10-28 09:24:47,434 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:24:47,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:47,435 INFO L85 PathProgramCache]: Analyzing trace with hash 672830572, now seen corresponding path program 2 times [2021-10-28 09:24:47,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:47,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599271203] [2021-10-28 09:24:47,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:47,437 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:47,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:47,444 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:24:47,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:47,449 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:24:47,598 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:24:47,598 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:24:47,599 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:24:47,599 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:24:47,599 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:24:47,599 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:47,599 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:24:47,599 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:24:47,599 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add-1.i_Iteration25_Loop [2021-10-28 09:24:47,599 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:24:47,600 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:24:47,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:24:47,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:24:47,815 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:24:47,816 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:24:47,816 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:47,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:47,817 INFO L229 MonitoredProcess]: Starting monitored process 136 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:47,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (136)] Waiting until timeout for monitored process [2021-10-28 09:24:47,819 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:24:47,819 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:24:47,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (136)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:47,902 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:47,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:47,903 INFO L229 MonitoredProcess]: Starting monitored process 137 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:47,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (137)] Waiting until timeout for monitored process [2021-10-28 09:24:47,905 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:24:47,905 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:24:51,797 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:24:51,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (137)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:51,802 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:24:51,802 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:24:51,802 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:24:51,802 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:24:51,802 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:24:51,802 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:51,802 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:24:51,803 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:24:51,803 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add-1.i_Iteration25_Loop [2021-10-28 09:24:51,803 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:24:51,803 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:24:51,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:24:51,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:24:51,999 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:24:52,000 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:24:52,000 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:52,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:52,002 INFO L229 MonitoredProcess]: Starting monitored process 138 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:52,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (138)] Waiting until timeout for monitored process [2021-10-28 09:24:52,003 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:52,012 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:52,013 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:52,013 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:52,013 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:52,013 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:24:52,015 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:24:52,015 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:52,019 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:52,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (138)] Ended with exit code 0 [2021-10-28 09:24:52,045 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:52,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:52,046 INFO L229 MonitoredProcess]: Starting monitored process 139 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:52,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (139)] Waiting until timeout for monitored process [2021-10-28 09:24:52,047 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:52,056 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:52,056 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:52,056 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:52,056 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:52,056 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:24:52,058 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:24:52,058 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:52,060 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:52,086 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (139)] Ended with exit code 0 [2021-10-28 09:24:52,087 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 09:24:52,087 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:52,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:52,088 INFO L229 MonitoredProcess]: Starting monitored process 140 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:52,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (140)] Waiting until timeout for monitored process [2021-10-28 09:24:52,090 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:52,100 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:52,100 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:52,100 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:52,100 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:52,100 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:24:52,103 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:24:52,104 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:52,109 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:52,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (140)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:52,137 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:52,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:52,138 INFO L229 MonitoredProcess]: Starting monitored process 141 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:52,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (141)] Waiting until timeout for monitored process [2021-10-28 09:24:52,139 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:52,148 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:52,149 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:52,149 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:52,149 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:52,149 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:24:52,151 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:24:52,151 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:52,166 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:52,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (141)] Ended with exit code 0 [2021-10-28 09:24:52,191 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 09:24:52,191 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:52,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:52,192 INFO L229 MonitoredProcess]: Starting monitored process 142 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:52,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (142)] Waiting until timeout for monitored process [2021-10-28 09:24:52,193 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:52,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:52,204 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:52,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:52,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:52,204 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:52,208 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:52,209 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:52,215 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:52,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (142)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:52,241 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:52,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:52,245 INFO L229 MonitoredProcess]: Starting monitored process 143 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:52,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (143)] Waiting until timeout for monitored process [2021-10-28 09:24:52,247 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:52,256 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:52,256 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:52,257 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:52,257 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:52,257 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:52,259 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:52,259 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:52,263 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:52,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (143)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:52,290 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 09:24:52,290 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:52,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:52,291 INFO L229 MonitoredProcess]: Starting monitored process 144 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:52,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (144)] Waiting until timeout for monitored process [2021-10-28 09:24:52,292 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:52,302 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:52,302 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:52,302 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:52,302 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:52,303 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:24:52,308 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:24:52,308 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:52,317 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:52,343 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (144)] Ended with exit code 0 [2021-10-28 09:24:52,343 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:52,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:52,344 INFO L229 MonitoredProcess]: Starting monitored process 145 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:52,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (145)] Waiting until timeout for monitored process [2021-10-28 09:24:52,345 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:52,355 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:52,355 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:52,356 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:52,356 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:52,356 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:24:52,358 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:24:52,358 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:52,364 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:52,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (145)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:52,390 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 09:24:52,390 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:52,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:52,393 INFO L229 MonitoredProcess]: Starting monitored process 146 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:52,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (146)] Waiting until timeout for monitored process [2021-10-28 09:24:52,394 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:52,404 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:52,404 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:24:52,404 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:52,404 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:52,404 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:52,404 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:24:52,408 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:24:52,408 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:52,417 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:52,442 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (146)] Ended with exit code 0 [2021-10-28 09:24:52,443 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:52,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:52,444 INFO L229 MonitoredProcess]: Starting monitored process 147 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:52,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (147)] Waiting until timeout for monitored process [2021-10-28 09:24:52,445 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:52,454 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:52,454 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:24:52,455 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:52,455 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:52,455 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:52,455 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:24:52,457 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:24:52,457 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:52,462 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:52,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (147)] Ended with exit code 0 [2021-10-28 09:24:52,486 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 09:24:52,487 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:52,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:52,488 INFO L229 MonitoredProcess]: Starting monitored process 148 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:52,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (148)] Waiting until timeout for monitored process [2021-10-28 09:24:52,489 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:52,499 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:52,499 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:24:52,499 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:52,499 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:52,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:52,499 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:52,504 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:52,504 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:52,519 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:52,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (148)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:52,544 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:52,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:52,545 INFO L229 MonitoredProcess]: Starting monitored process 149 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:52,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (149)] Waiting until timeout for monitored process [2021-10-28 09:24:52,546 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:52,555 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:52,556 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:24:52,556 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:52,556 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:52,556 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:52,556 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:52,559 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:52,559 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:52,566 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:52,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (149)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:52,591 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 09:24:52,591 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:52,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:52,592 INFO L229 MonitoredProcess]: Starting monitored process 150 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:52,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (150)] Waiting until timeout for monitored process [2021-10-28 09:24:52,593 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:52,603 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:52,603 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:24:52,603 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:52,604 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:52,604 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:52,604 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:24:52,610 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:24:52,611 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:52,629 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:52,655 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (150)] Ended with exit code 0 [2021-10-28 09:24:52,655 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:52,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:52,658 INFO L229 MonitoredProcess]: Starting monitored process 151 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:52,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (151)] Waiting until timeout for monitored process [2021-10-28 09:24:52,660 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:52,669 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:52,669 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:24:52,670 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:52,670 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:52,670 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:52,670 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:24:52,673 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:24:52,673 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:52,683 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:52,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (151)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:52,709 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 09:24:52,709 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:52,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:52,710 INFO L229 MonitoredProcess]: Starting monitored process 152 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:52,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (152)] Waiting until timeout for monitored process [2021-10-28 09:24:52,711 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:52,720 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:52,720 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:24:52,720 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:52,720 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:52,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:52,720 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:52,725 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:52,725 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:52,733 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:52,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (152)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:52,759 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:52,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:52,760 INFO L229 MonitoredProcess]: Starting monitored process 153 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:52,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (153)] Waiting until timeout for monitored process [2021-10-28 09:24:52,761 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:52,770 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:52,770 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:24:52,771 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:52,771 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:52,771 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:52,771 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:52,773 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:52,773 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:52,778 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:52,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (153)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:52,804 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 09:24:52,804 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:52,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:52,805 INFO L229 MonitoredProcess]: Starting monitored process 154 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:52,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (154)] Waiting until timeout for monitored process [2021-10-28 09:24:52,806 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:52,816 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:52,816 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:24:52,816 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:52,817 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:52,817 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:52,817 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:24:52,823 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:24:52,824 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:52,837 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:52,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (154)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:52,862 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:52,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:52,863 INFO L229 MonitoredProcess]: Starting monitored process 155 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:52,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (155)] Waiting until timeout for monitored process [2021-10-28 09:24:52,864 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:52,874 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:52,874 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:24:52,874 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:52,874 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:52,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:52,875 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:24:52,879 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:24:52,879 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:52,900 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:52,931 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (155)] Ended with exit code 0 [2021-10-28 09:24:52,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:24:52,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:24:52,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:24:52,932 INFO L87 Difference]: Start difference. First operand 466 states and 520 transitions. cyclomatic complexity: 57 Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:53,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:24:53,447 INFO L93 Difference]: Finished difference Result 1092 states and 1211 transitions. [2021-10-28 09:24:53,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 09:24:53,447 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1092 states and 1211 transitions. [2021-10-28 09:24:53,454 INFO L131 ngComponentsAnalysis]: Automaton has 11 accepting balls. 159 [2021-10-28 09:24:53,463 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1092 states to 1092 states and 1211 transitions. [2021-10-28 09:24:53,463 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1092 [2021-10-28 09:24:53,464 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1092 [2021-10-28 09:24:53,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1092 states and 1211 transitions. [2021-10-28 09:24:53,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:24:53,466 INFO L681 BuchiCegarLoop]: Abstraction has 1092 states and 1211 transitions. [2021-10-28 09:24:53,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states and 1211 transitions. [2021-10-28 09:24:53,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 437. [2021-10-28 09:24:53,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 437 states have (on average 1.1167048054919908) internal successors, (488), 436 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:53,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 488 transitions. [2021-10-28 09:24:53,485 INFO L704 BuchiCegarLoop]: Abstraction has 437 states and 488 transitions. [2021-10-28 09:24:53,485 INFO L587 BuchiCegarLoop]: Abstraction has 437 states and 488 transitions. [2021-10-28 09:24:53,485 INFO L425 BuchiCegarLoop]: ======== Iteration 26============ [2021-10-28 09:24:53,485 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 437 states and 488 transitions. [2021-10-28 09:24:53,487 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 43 [2021-10-28 09:24:53,487 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:24:53,487 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:24:53,488 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:53,488 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:53,488 INFO L791 eck$LassoCheckResult]: Stem: 28428#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 28421#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~0 := main_#t~nondet4;havoc main_#t~nondet4;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 28409#L51 assume 0 == mp_add_~a3~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 28411#L53 assume !(0 == mp_add_~a2~0 % 256); 28438#L51-1 mp_add_~nb~0 := 4; 28412#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 28414#L63 assume !(0 == mp_add_~b2~0 % 256); 28513#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 28514#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 28509#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 28510#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 28505#L76-2 assume !(1 == mp_add_~i~0 % 256); 28506#L77-1 assume !(2 == mp_add_~i~0 % 256); 28501#L78-1 assume !(3 == mp_add_~i~0 % 256); 28502#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 28497#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 28498#L82-2 assume !(1 == mp_add_~i~0 % 256); 28493#L83-1 assume !(2 == mp_add_~i~0 % 256); 28494#L84-1 assume !(3 == mp_add_~i~0 % 256); 28489#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 28490#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 28485#L91-1 assume !(1 == mp_add_~i~0 % 256); 28486#L92-1 assume !(2 == mp_add_~i~0 % 256); 28481#L93-1 assume !(3 == mp_add_~i~0 % 256); 28482#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 28477#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 28478#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 28713#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 28749#L82 assume !(0 == mp_add_~i~0 % 256); 28747#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 28748#L83-1 assume !(2 == mp_add_~i~0 % 256); 28776#L84-1 assume !(3 == mp_add_~i~0 % 256); 28774#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 28772#L87-1 assume !(0 == mp_add_~i~0 % 256); 28773#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 28769#L92-1 assume !(2 == mp_add_~i~0 % 256); 28768#L93-1 assume !(3 == mp_add_~i~0 % 256); 28767#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 28766#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 28757#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 28758#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 28704#L82 assume !(0 == mp_add_~i~0 % 256); 28754#L82-2 assume !(1 == mp_add_~i~0 % 256); 28755#L83-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b2~0 % 256; 28804#L84-1 assume !(3 == mp_add_~i~0 % 256); 28801#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 28799#L87-1 assume !(0 == mp_add_~i~0 % 256); 28797#L91-1 assume !(1 == mp_add_~i~0 % 256); 28795#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 28793#L93-1 assume !(3 == mp_add_~i~0 % 256); 28791#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 28789#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 28787#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 28785#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 28783#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 28780#L87-1 assume !(0 == mp_add_~i~0 % 256); 28779#L91-1 assume !(1 == mp_add_~i~0 % 256); 28778#L92-1 assume !(2 == mp_add_~i~0 % 256); 28777#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 28426#L94-1 [2021-10-28 09:24:53,489 INFO L793 eck$LassoCheckResult]: Loop: 28426#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 28422#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 28423#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 28439#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 28434#L82 assume !(0 == mp_add_~i~0 % 256); 28435#L82-2 assume !(1 == mp_add_~i~0 % 256); 28445#L83-1 assume !(2 == mp_add_~i~0 % 256); 28436#L84-1 assume !(3 == mp_add_~i~0 % 256); 28432#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 28424#L87-1 assume !(0 == mp_add_~i~0 % 256); 28418#L91-1 assume !(1 == mp_add_~i~0 % 256); 28419#L92-1 assume !(2 == mp_add_~i~0 % 256); 28420#L93-1 assume !(3 == mp_add_~i~0 % 256); 28426#L94-1 [2021-10-28 09:24:53,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:53,489 INFO L85 PathProgramCache]: Analyzing trace with hash -406941166, now seen corresponding path program 1 times [2021-10-28 09:24:53,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:53,489 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897149381] [2021-10-28 09:24:53,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:53,490 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:53,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:24:53,615 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 37 proven. 5 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-28 09:24:53,616 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:24:53,616 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897149381] [2021-10-28 09:24:53,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897149381] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:24:53,616 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472402460] [2021-10-28 09:24:53,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:53,617 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:24:53,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:53,622 INFO L229 MonitoredProcess]: Starting monitored process 156 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:24:53,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (156)] Waiting until timeout for monitored process [2021-10-28 09:24:54,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:24:54,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 09:24:54,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:24:54,808 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 37 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-10-28 09:24:54,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472402460] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:24:54,809 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:24:54,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 9 [2021-10-28 09:24:54,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216421397] [2021-10-28 09:24:54,810 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:24:54,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:54,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 6 times [2021-10-28 09:24:54,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:54,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68790156] [2021-10-28 09:24:54,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:54,811 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:54,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:54,818 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:24:54,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:54,823 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:24:54,976 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:24:54,976 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:24:54,977 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:24:54,977 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:24:54,977 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:24:54,977 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:54,977 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:24:54,977 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:24:54,977 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add-1.i_Iteration26_Loop [2021-10-28 09:24:54,977 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:24:54,977 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:24:54,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:24:54,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:24:55,239 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:24:55,239 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:24:55,239 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:55,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:55,253 INFO L229 MonitoredProcess]: Starting monitored process 157 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:55,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (157)] Waiting until timeout for monitored process [2021-10-28 09:24:55,255 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:24:55,255 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:24:55,336 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (157)] Ended with exit code 0 [2021-10-28 09:24:55,337 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:55,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:55,338 INFO L229 MonitoredProcess]: Starting monitored process 158 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:55,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (158)] Waiting until timeout for monitored process [2021-10-28 09:24:55,339 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:24:55,339 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:24:58,014 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:24:58,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (158)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:58,019 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:24:58,019 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:24:58,019 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:24:58,019 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:24:58,020 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:24:58,020 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:58,020 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:24:58,020 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:24:58,020 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add-1.i_Iteration26_Loop [2021-10-28 09:24:58,020 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:24:58,020 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:24:58,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:24:58,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:24:58,241 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:24:58,242 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:24:58,242 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:58,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:58,246 INFO L229 MonitoredProcess]: Starting monitored process 159 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:58,251 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:58,262 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:58,262 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:58,263 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:58,263 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:58,263 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:24:58,266 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:24:58,266 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:58,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (159)] Waiting until timeout for monitored process [2021-10-28 09:24:58,281 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:58,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (159)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:58,324 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:58,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:58,326 INFO L229 MonitoredProcess]: Starting monitored process 160 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:58,328 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:58,340 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:58,340 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:58,340 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:58,341 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:58,341 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:24:58,344 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:24:58,344 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:58,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (160)] Waiting until timeout for monitored process [2021-10-28 09:24:58,357 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:58,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (160)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:58,406 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 09:24:58,406 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:58,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:58,408 INFO L229 MonitoredProcess]: Starting monitored process 161 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:58,410 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:58,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (161)] Waiting until timeout for monitored process [2021-10-28 09:24:58,423 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:58,423 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:58,423 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:58,423 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:58,423 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:24:58,428 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:24:58,428 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:58,447 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:58,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (161)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:58,490 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:58,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:58,491 INFO L229 MonitoredProcess]: Starting monitored process 162 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:58,494 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:58,506 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:58,506 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:58,506 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:58,506 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:58,506 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:24:58,508 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:24:58,508 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:58,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (162)] Waiting until timeout for monitored process [2021-10-28 09:24:58,532 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:58,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (162)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:58,576 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 09:24:58,576 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:58,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:58,577 INFO L229 MonitoredProcess]: Starting monitored process 163 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:58,580 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:58,592 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:58,592 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:58,592 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:58,592 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:58,592 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:58,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (163)] Waiting until timeout for monitored process [2021-10-28 09:24:58,598 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:58,598 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:58,618 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:58,642 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (163)] Ended with exit code 0 [2021-10-28 09:24:58,643 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:58,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:58,644 INFO L229 MonitoredProcess]: Starting monitored process 164 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:58,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (164)] Waiting until timeout for monitored process [2021-10-28 09:24:58,645 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:58,654 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:58,654 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:58,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:58,655 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:58,655 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:58,657 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:58,657 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:58,661 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:58,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (164)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:58,686 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 09:24:58,687 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:58,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:58,688 INFO L229 MonitoredProcess]: Starting monitored process 165 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:58,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (165)] Waiting until timeout for monitored process [2021-10-28 09:24:58,689 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:58,699 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:58,699 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:58,699 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:58,699 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:58,699 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:24:58,707 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:24:58,707 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:58,715 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:58,741 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (165)] Ended with exit code 0 [2021-10-28 09:24:58,741 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:58,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:58,742 INFO L229 MonitoredProcess]: Starting monitored process 166 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:58,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (166)] Waiting until timeout for monitored process [2021-10-28 09:24:58,743 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:58,753 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:24:58,753 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:58,753 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:58,753 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:58,753 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:24:58,756 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:24:58,756 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:58,761 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:58,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (166)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:58,787 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 09:24:58,787 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:58,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:58,788 INFO L229 MonitoredProcess]: Starting monitored process 167 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:58,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (167)] Waiting until timeout for monitored process [2021-10-28 09:24:58,789 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:58,799 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:58,799 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:24:58,799 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:58,799 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:58,799 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:58,799 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:24:58,803 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:24:58,803 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:58,811 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:58,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (167)] Ended with exit code 0 [2021-10-28 09:24:58,836 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:58,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:58,837 INFO L229 MonitoredProcess]: Starting monitored process 168 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:58,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (168)] Waiting until timeout for monitored process [2021-10-28 09:24:58,839 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:58,848 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:58,848 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:24:58,848 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:58,848 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:58,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:58,849 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:24:58,850 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:24:58,850 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:58,855 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:58,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (168)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:58,881 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 09:24:58,881 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:58,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:58,882 INFO L229 MonitoredProcess]: Starting monitored process 169 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:58,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (169)] Waiting until timeout for monitored process [2021-10-28 09:24:58,884 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:58,893 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:58,893 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:24:58,893 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:58,894 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:58,894 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:58,894 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:58,899 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:58,899 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:58,922 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:58,946 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (169)] Ended with exit code 0 [2021-10-28 09:24:58,946 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:58,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:58,947 INFO L229 MonitoredProcess]: Starting monitored process 170 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:58,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (170)] Waiting until timeout for monitored process [2021-10-28 09:24:58,949 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:58,958 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:58,958 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:24:58,958 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:58,958 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:58,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:58,958 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:58,961 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:58,961 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:58,968 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:58,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (170)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:58,994 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 09:24:58,994 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:58,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:58,995 INFO L229 MonitoredProcess]: Starting monitored process 171 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:58,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (171)] Waiting until timeout for monitored process [2021-10-28 09:24:58,998 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:59,008 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:59,008 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:24:59,008 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:59,008 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:59,008 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:59,008 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:24:59,017 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:24:59,017 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:59,052 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:59,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (171)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:59,095 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:59,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:59,096 INFO L229 MonitoredProcess]: Starting monitored process 172 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:59,110 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:59,123 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:59,123 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:24:59,123 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:59,123 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:59,123 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:59,124 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:24:59,128 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:24:59,129 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:59,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (172)] Waiting until timeout for monitored process [2021-10-28 09:24:59,165 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:59,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (172)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:59,208 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 09:24:59,209 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:59,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:59,210 INFO L229 MonitoredProcess]: Starting monitored process 173 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:59,212 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:59,224 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:59,224 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:24:59,225 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:59,225 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:59,225 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:59,225 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:59,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (173)] Waiting until timeout for monitored process [2021-10-28 09:24:59,232 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:59,232 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:59,243 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:59,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (173)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:59,269 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:59,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:59,270 INFO L229 MonitoredProcess]: Starting monitored process 174 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:59,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (174)] Waiting until timeout for monitored process [2021-10-28 09:24:59,271 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:59,280 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:59,280 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:24:59,281 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:59,281 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:59,281 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:59,281 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:24:59,283 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:24:59,283 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:59,288 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:59,313 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (174)] Ended with exit code 0 [2021-10-28 09:24:59,313 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 09:24:59,314 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:59,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:59,314 INFO L229 MonitoredProcess]: Starting monitored process 175 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:59,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (175)] Waiting until timeout for monitored process [2021-10-28 09:24:59,316 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:59,325 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:59,325 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:24:59,325 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:59,326 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:59,326 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:59,326 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:24:59,332 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:24:59,332 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:59,346 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:59,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (175)] Forceful destruction successful, exit code 0 [2021-10-28 09:24:59,372 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:59,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:59,373 INFO L229 MonitoredProcess]: Starting monitored process 176 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:59,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (176)] Waiting until timeout for monitored process [2021-10-28 09:24:59,374 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:24:59,384 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:24:59,384 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:24:59,384 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:24:59,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:24:59,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:24:59,385 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:24:59,388 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:24:59,388 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:24:59,397 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:24:59,422 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (176)] Ended with exit code 0 [2021-10-28 09:24:59,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:24:59,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 09:24:59,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:24:59,423 INFO L87 Difference]: Start difference. First operand 437 states and 488 transitions. cyclomatic complexity: 54 Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:59,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:24:59,960 INFO L93 Difference]: Finished difference Result 757 states and 834 transitions. [2021-10-28 09:24:59,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 09:24:59,961 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 757 states and 834 transitions. [2021-10-28 09:24:59,964 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 99 [2021-10-28 09:24:59,968 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 757 states to 711 states and 784 transitions. [2021-10-28 09:24:59,968 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 711 [2021-10-28 09:24:59,968 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 711 [2021-10-28 09:24:59,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 711 states and 784 transitions. [2021-10-28 09:24:59,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:24:59,970 INFO L681 BuchiCegarLoop]: Abstraction has 711 states and 784 transitions. [2021-10-28 09:24:59,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states and 784 transitions. [2021-10-28 09:24:59,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 524. [2021-10-28 09:24:59,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 524 states have (on average 1.1125954198473282) internal successors, (583), 523 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:24:59,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 583 transitions. [2021-10-28 09:24:59,985 INFO L704 BuchiCegarLoop]: Abstraction has 524 states and 583 transitions. [2021-10-28 09:24:59,986 INFO L587 BuchiCegarLoop]: Abstraction has 524 states and 583 transitions. [2021-10-28 09:24:59,986 INFO L425 BuchiCegarLoop]: ======== Iteration 27============ [2021-10-28 09:24:59,986 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 524 states and 583 transitions. [2021-10-28 09:24:59,988 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 43 [2021-10-28 09:24:59,988 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:24:59,988 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:24:59,989 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:59,989 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:59,989 INFO L791 eck$LassoCheckResult]: Stem: 29819#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 29812#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~0 := main_#t~nondet4;havoc main_#t~nondet4;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 29801#L51 assume 0 == mp_add_~a3~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 29803#L53 assume 0 == mp_add_~a2~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 29831#L55 assume !(0 == mp_add_~a1~0 % 256); 29832#L51-1 mp_add_~nb~0 := 4; 30146#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 30145#L63 assume !(0 == mp_add_~b2~0 % 256); 29904#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 29905#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 29900#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 29901#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 29896#L76-2 assume !(1 == mp_add_~i~0 % 256); 29897#L77-1 assume !(2 == mp_add_~i~0 % 256); 29892#L78-1 assume !(3 == mp_add_~i~0 % 256); 29893#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 29888#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 29889#L82-2 assume !(1 == mp_add_~i~0 % 256); 29884#L83-1 assume !(2 == mp_add_~i~0 % 256); 29885#L84-1 assume !(3 == mp_add_~i~0 % 256); 29880#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 29881#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 29876#L91-1 assume !(1 == mp_add_~i~0 % 256); 29877#L92-1 assume !(2 == mp_add_~i~0 % 256); 29872#L93-1 assume !(3 == mp_add_~i~0 % 256); 29873#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 29868#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 29869#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 30143#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 30240#L82 assume !(0 == mp_add_~i~0 % 256); 30241#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 30236#L83-1 assume !(2 == mp_add_~i~0 % 256); 30237#L84-1 assume !(3 == mp_add_~i~0 % 256); 30232#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 30230#L87-1 assume !(0 == mp_add_~i~0 % 256); 30231#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 30226#L92-1 assume !(2 == mp_add_~i~0 % 256); 30227#L93-1 assume !(3 == mp_add_~i~0 % 256); 30222#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 30223#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 30282#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 30283#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 30134#L82 assume !(0 == mp_add_~i~0 % 256); 30281#L82-2 assume !(1 == mp_add_~i~0 % 256); 30280#L83-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b2~0 % 256; 30268#L84-1 assume !(3 == mp_add_~i~0 % 256); 30267#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 30266#L87-1 assume !(0 == mp_add_~i~0 % 256); 30265#L91-1 assume !(1 == mp_add_~i~0 % 256); 30264#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 30263#L93-1 assume !(3 == mp_add_~i~0 % 256); 30262#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 30261#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 30252#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 30251#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 30249#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 30246#L87-1 assume !(0 == mp_add_~i~0 % 256); 30245#L91-1 assume !(1 == mp_add_~i~0 % 256); 30244#L92-1 assume !(2 == mp_add_~i~0 % 256); 30243#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 29818#L94-1 [2021-10-28 09:24:59,989 INFO L793 eck$LassoCheckResult]: Loop: 29818#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 30320#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 29833#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 29834#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 29826#L82 assume !(0 == mp_add_~i~0 % 256); 29827#L82-2 assume !(1 == mp_add_~i~0 % 256); 29838#L83-1 assume !(2 == mp_add_~i~0 % 256); 29829#L84-1 assume !(3 == mp_add_~i~0 % 256); 29830#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 29813#L87-1 assume !(0 == mp_add_~i~0 % 256); 29814#L91-1 assume !(1 == mp_add_~i~0 % 256); 29797#L92-1 assume !(2 == mp_add_~i~0 % 256); 29798#L93-1 assume !(3 == mp_add_~i~0 % 256); 29818#L94-1 [2021-10-28 09:24:59,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:59,990 INFO L85 PathProgramCache]: Analyzing trace with hash -780375943, now seen corresponding path program 1 times [2021-10-28 09:24:59,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:59,990 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554978756] [2021-10-28 09:24:59,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:59,991 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:25:00,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:25:00,156 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 37 proven. 5 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-28 09:25:00,156 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:25:00,156 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554978756] [2021-10-28 09:25:00,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554978756] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:25:00,157 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1845703014] [2021-10-28 09:25:00,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:25:00,157 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:25:00,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:25:00,158 INFO L229 MonitoredProcess]: Starting monitored process 177 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:25:00,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (177)] Waiting until timeout for monitored process [2021-10-28 09:25:00,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:25:00,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 09:25:00,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:25:39,915 WARN L207 SmtUtils]: Spent 12.15 s on a formula simplification that was a NOOP. DAG size: 32 [2021-10-28 09:26:31,291 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 37 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-10-28 09:26:31,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1845703014] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:26:31,292 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:26:31,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 11 [2021-10-28 09:26:31,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909568066] [2021-10-28 09:26:31,293 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:26:31,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:26:31,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 7 times [2021-10-28 09:26:31,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:26:31,294 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928892061] [2021-10-28 09:26:31,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:26:31,294 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:26:31,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:26:31,303 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:26:31,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:26:31,309 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:26:31,604 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:26:31,604 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:26:31,605 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:26:31,605 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:26:31,605 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:26:31,605 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:31,605 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:26:31,605 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:26:31,605 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add-1.i_Iteration27_Loop [2021-10-28 09:26:31,605 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:26:31,605 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:26:31,606 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:26:31,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:26:32,244 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:26:32,244 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:26:32,245 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:32,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:32,250 INFO L229 MonitoredProcess]: Starting monitored process 178 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:32,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (178)] Waiting until timeout for monitored process [2021-10-28 09:26:32,252 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:26:32,252 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:26:32,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (178)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:32,342 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:32,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:32,343 INFO L229 MonitoredProcess]: Starting monitored process 179 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:32,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (179)] Waiting until timeout for monitored process [2021-10-28 09:26:32,345 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:26:32,345 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:26:33,235 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:26:33,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (179)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:33,240 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:26:33,240 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:26:33,240 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:26:33,240 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:26:33,240 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:26:33,240 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:33,241 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:26:33,241 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:26:33,241 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add-1.i_Iteration27_Loop [2021-10-28 09:26:33,241 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:26:33,241 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:26:33,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:26:33,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:26:33,827 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:26:33,827 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:26:33,828 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:33,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:33,829 INFO L229 MonitoredProcess]: Starting monitored process 180 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:33,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (180)] Waiting until timeout for monitored process [2021-10-28 09:26:33,830 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:33,839 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:26:33,839 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:33,839 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:33,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:33,840 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:26:33,842 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:26:33,842 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:33,846 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:33,871 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (180)] Ended with exit code 0 [2021-10-28 09:26:33,872 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:33,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:33,873 INFO L229 MonitoredProcess]: Starting monitored process 181 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:33,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (181)] Waiting until timeout for monitored process [2021-10-28 09:26:33,874 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:33,883 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:26:33,883 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:33,883 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:33,883 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:33,884 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:26:33,885 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:26:33,885 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:33,887 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:33,912 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (181)] Ended with exit code 0 [2021-10-28 09:26:33,913 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 09:26:33,913 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:33,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:33,914 INFO L229 MonitoredProcess]: Starting monitored process 182 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:33,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (182)] Waiting until timeout for monitored process [2021-10-28 09:26:33,916 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:33,928 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:26:33,928 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:33,928 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:33,929 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:33,929 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:26:33,932 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:26:33,932 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:33,938 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:33,964 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (182)] Ended with exit code 0 [2021-10-28 09:26:33,964 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:33,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:33,965 INFO L229 MonitoredProcess]: Starting monitored process 183 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:33,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (183)] Waiting until timeout for monitored process [2021-10-28 09:26:33,966 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:33,976 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:26:33,976 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:33,976 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:33,976 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:33,976 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:26:33,978 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:26:33,978 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:33,981 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:34,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (183)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:34,007 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 09:26:34,008 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:34,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:34,008 INFO L229 MonitoredProcess]: Starting monitored process 184 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:34,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (184)] Waiting until timeout for monitored process [2021-10-28 09:26:34,012 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:34,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:26:34,022 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:34,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:34,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:34,022 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:26:34,029 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:26:34,029 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:34,044 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:34,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (184)] Ended with exit code 0 [2021-10-28 09:26:34,070 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:34,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:34,071 INFO L229 MonitoredProcess]: Starting monitored process 185 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:34,073 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:34,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (185)] Waiting until timeout for monitored process [2021-10-28 09:26:34,083 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:26:34,083 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:34,083 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:34,083 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:34,084 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:26:34,086 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:26:34,086 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:34,098 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:34,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (185)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:34,124 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 09:26:34,124 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:34,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:34,125 INFO L229 MonitoredProcess]: Starting monitored process 186 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:34,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (186)] Waiting until timeout for monitored process [2021-10-28 09:26:34,126 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:34,136 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:26:34,136 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:34,136 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:34,136 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:34,136 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:26:34,144 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:26:34,145 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:34,153 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:34,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (186)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:34,179 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:34,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:34,180 INFO L229 MonitoredProcess]: Starting monitored process 187 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:34,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (187)] Waiting until timeout for monitored process [2021-10-28 09:26:34,181 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:34,191 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:26:34,191 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:34,191 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:34,191 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:34,191 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:26:34,194 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:26:34,194 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:34,199 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:34,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (187)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:34,224 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 09:26:34,224 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:34,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:34,225 INFO L229 MonitoredProcess]: Starting monitored process 188 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:34,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (188)] Waiting until timeout for monitored process [2021-10-28 09:26:34,226 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:34,236 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:34,236 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:26:34,236 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:34,236 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:34,236 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:34,236 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:26:34,240 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:26:34,240 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:34,249 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:34,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (188)] Ended with exit code 0 [2021-10-28 09:26:34,275 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:34,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:34,275 INFO L229 MonitoredProcess]: Starting monitored process 189 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:34,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (189)] Waiting until timeout for monitored process [2021-10-28 09:26:34,277 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:34,286 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:34,286 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:26:34,286 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:34,286 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:34,286 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:34,287 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:26:34,288 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:26:34,288 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:34,294 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:34,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (189)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:34,320 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 09:26:34,320 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:34,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:34,321 INFO L229 MonitoredProcess]: Starting monitored process 190 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:34,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (190)] Waiting until timeout for monitored process [2021-10-28 09:26:34,323 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:34,333 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:34,333 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:26:34,333 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:34,333 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:34,333 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:34,333 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:26:34,338 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:26:34,338 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:34,352 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:34,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (190)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:34,379 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:34,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:34,380 INFO L229 MonitoredProcess]: Starting monitored process 191 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:34,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (191)] Waiting until timeout for monitored process [2021-10-28 09:26:34,384 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:34,394 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:34,394 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:26:34,394 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:34,394 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:34,395 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:34,395 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:26:34,397 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:26:34,397 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:34,404 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:34,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (191)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:34,430 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 09:26:34,431 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:34,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:34,438 INFO L229 MonitoredProcess]: Starting monitored process 192 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:34,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (192)] Waiting until timeout for monitored process [2021-10-28 09:26:34,443 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:34,453 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:34,453 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:26:34,453 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:34,454 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:34,454 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:34,454 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:26:34,460 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:26:34,460 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:34,478 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:34,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (192)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:34,504 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:34,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:34,505 INFO L229 MonitoredProcess]: Starting monitored process 193 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:34,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (193)] Waiting until timeout for monitored process [2021-10-28 09:26:34,506 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:34,516 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:34,517 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:26:34,517 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:34,517 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:34,517 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:34,517 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:26:34,520 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:26:34,520 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:34,531 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:34,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (193)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:34,558 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 09:26:34,558 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:34,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:34,559 INFO L229 MonitoredProcess]: Starting monitored process 194 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:34,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (194)] Waiting until timeout for monitored process [2021-10-28 09:26:34,561 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:34,570 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:34,570 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:26:34,570 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:34,570 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:34,570 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:34,570 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:26:34,575 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:26:34,575 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:34,583 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:34,609 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (194)] Ended with exit code 0 [2021-10-28 09:26:34,609 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:34,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:34,610 INFO L229 MonitoredProcess]: Starting monitored process 195 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:34,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (195)] Waiting until timeout for monitored process [2021-10-28 09:26:34,612 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:34,621 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:34,621 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:26:34,621 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:34,621 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:34,621 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:34,621 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:26:34,624 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:26:34,624 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:34,629 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:34,655 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (195)] Ended with exit code 0 [2021-10-28 09:26:34,655 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 09:26:34,655 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:34,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:34,656 INFO L229 MonitoredProcess]: Starting monitored process 196 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:34,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (196)] Waiting until timeout for monitored process [2021-10-28 09:26:34,658 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:34,667 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:34,668 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:26:34,668 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:34,668 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:34,668 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:34,668 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:26:34,675 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:26:34,675 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:34,694 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:34,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (196)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:34,721 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:34,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:34,722 INFO L229 MonitoredProcess]: Starting monitored process 197 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:34,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (197)] Waiting until timeout for monitored process [2021-10-28 09:26:34,723 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:34,733 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:34,733 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:26:34,733 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:34,734 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:34,734 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:34,734 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:26:34,737 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:26:34,737 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:34,746 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:34,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (197)] Ended with exit code 0 [2021-10-28 09:26:34,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:26:34,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 09:26:34,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=78, Unknown=2, NotChecked=0, Total=110 [2021-10-28 09:26:34,773 INFO L87 Difference]: Start difference. First operand 524 states and 583 transitions. cyclomatic complexity: 62 Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:26:38,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:26:38,464 INFO L93 Difference]: Finished difference Result 874 states and 962 transitions. [2021-10-28 09:26:38,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 09:26:38,465 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 874 states and 962 transitions. [2021-10-28 09:26:38,469 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 112 [2021-10-28 09:26:38,474 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 874 states to 853 states and 939 transitions. [2021-10-28 09:26:38,475 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 853 [2021-10-28 09:26:38,475 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 853 [2021-10-28 09:26:38,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 853 states and 939 transitions. [2021-10-28 09:26:38,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:26:38,477 INFO L681 BuchiCegarLoop]: Abstraction has 853 states and 939 transitions. [2021-10-28 09:26:38,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states and 939 transitions. [2021-10-28 09:26:38,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 576. [2021-10-28 09:26:38,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 576 states have (on average 1.1111111111111112) internal successors, (640), 575 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:26:38,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 640 transitions. [2021-10-28 09:26:38,496 INFO L704 BuchiCegarLoop]: Abstraction has 576 states and 640 transitions. [2021-10-28 09:26:38,496 INFO L587 BuchiCegarLoop]: Abstraction has 576 states and 640 transitions. [2021-10-28 09:26:38,497 INFO L425 BuchiCegarLoop]: ======== Iteration 28============ [2021-10-28 09:26:38,497 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 576 states and 640 transitions. [2021-10-28 09:26:38,499 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 43 [2021-10-28 09:26:38,499 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:26:38,500 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:26:38,500 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:26:38,501 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:26:38,501 INFO L791 eck$LassoCheckResult]: Stem: 31419#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 31412#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~0 := main_#t~nondet4;havoc main_#t~nondet4;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 31401#L51 assume 0 == mp_add_~a3~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 31403#L53 assume 0 == mp_add_~a2~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 31430#L55 assume 0 == mp_add_~a1~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 31431#L51-1 mp_add_~nb~0 := 4; 31790#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 31789#L63 assume !(0 == mp_add_~b2~0 % 256); 31502#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 31503#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 31498#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 31499#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 31494#L76-2 assume !(1 == mp_add_~i~0 % 256); 31495#L77-1 assume !(2 == mp_add_~i~0 % 256); 31490#L78-1 assume !(3 == mp_add_~i~0 % 256); 31491#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 31486#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 31487#L82-2 assume !(1 == mp_add_~i~0 % 256); 31482#L83-1 assume !(2 == mp_add_~i~0 % 256); 31483#L84-1 assume !(3 == mp_add_~i~0 % 256); 31478#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 31479#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 31474#L91-1 assume !(1 == mp_add_~i~0 % 256); 31475#L92-1 assume !(2 == mp_add_~i~0 % 256); 31470#L93-1 assume !(3 == mp_add_~i~0 % 256); 31471#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 31466#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 31467#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 31787#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 31858#L82 assume !(0 == mp_add_~i~0 % 256); 31859#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 31854#L83-1 assume !(2 == mp_add_~i~0 % 256); 31855#L84-1 assume !(3 == mp_add_~i~0 % 256); 31850#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 31848#L87-1 assume !(0 == mp_add_~i~0 % 256); 31849#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 31844#L92-1 assume !(2 == mp_add_~i~0 % 256); 31845#L93-1 assume !(3 == mp_add_~i~0 % 256); 31840#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 31841#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 31831#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 31832#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 31777#L82 assume !(0 == mp_add_~i~0 % 256); 31824#L82-2 assume !(1 == mp_add_~i~0 % 256); 31825#L83-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b2~0 % 256; 31906#L84-1 assume !(3 == mp_add_~i~0 % 256); 31904#L81 assume mp_add_~partial_sum~0 % 65536 > 254;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 31903#L87-1 assume !(0 == mp_add_~i~0 % 256); 31902#L91-1 assume !(1 == mp_add_~i~0 % 256); 31901#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 31900#L93-1 assume !(3 == mp_add_~i~0 % 256); 31899#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 31898#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 31897#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 31895#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 31893#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 31890#L87-1 assume !(0 == mp_add_~i~0 % 256); 31889#L91-1 assume !(1 == mp_add_~i~0 % 256); 31888#L92-1 assume !(2 == mp_add_~i~0 % 256); 31887#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 31416#L94-1 [2021-10-28 09:26:38,501 INFO L793 eck$LassoCheckResult]: Loop: 31416#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 31410#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 31411#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 31433#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 31427#L82 assume !(0 == mp_add_~i~0 % 256); 31428#L82-2 assume !(1 == mp_add_~i~0 % 256); 31432#L83-1 assume !(2 == mp_add_~i~0 % 256); 31429#L84-1 assume !(3 == mp_add_~i~0 % 256); 31424#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 31413#L87-1 assume !(0 == mp_add_~i~0 % 256); 31398#L91-1 assume !(1 == mp_add_~i~0 % 256); 31399#L92-1 assume !(2 == mp_add_~i~0 % 256); 31400#L93-1 assume !(3 == mp_add_~i~0 % 256); 31416#L94-1 [2021-10-28 09:26:38,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:26:38,502 INFO L85 PathProgramCache]: Analyzing trace with hash -821050693, now seen corresponding path program 1 times [2021-10-28 09:26:38,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:26:38,503 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932024727] [2021-10-28 09:26:38,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:26:38,503 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:26:38,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:26:38,539 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:26:38,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:26:38,576 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:26:38,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:26:38,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 8 times [2021-10-28 09:26:38,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:26:38,578 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742371627] [2021-10-28 09:26:38,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:26:38,578 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:26:38,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:26:38,623 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:26:38,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:26:38,628 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:26:38,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:26:38,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1170105550, now seen corresponding path program 2 times [2021-10-28 09:26:38,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:26:38,630 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902266885] [2021-10-28 09:26:38,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:26:38,630 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:26:38,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:26:38,934 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-10-28 09:26:38,934 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:26:38,934 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902266885] [2021-10-28 09:26:38,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902266885] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:26:38,934 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:26:38,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 09:26:38,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48059067] [2021-10-28 09:26:39,258 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:26:39,258 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:26:39,258 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:26:39,258 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:26:39,258 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:26:39,261 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:39,261 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:26:39,261 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:26:39,261 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add-1.i_Iteration28_Loop [2021-10-28 09:26:39,261 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:26:39,261 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:26:39,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:26:39,329 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:26:39,930 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:26:39,930 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:26:39,931 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:39,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:39,932 INFO L229 MonitoredProcess]: Starting monitored process 198 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:39,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (198)] Waiting until timeout for monitored process [2021-10-28 09:26:39,939 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:26:39,940 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:26:40,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (198)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:40,025 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:40,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:40,026 INFO L229 MonitoredProcess]: Starting monitored process 199 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:40,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (199)] Waiting until timeout for monitored process [2021-10-28 09:26:40,027 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:26:40,032 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:26:41,798 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:26:41,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (199)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:41,803 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:26:41,803 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:26:41,803 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:26:41,803 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:26:41,803 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:26:41,803 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:41,803 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:26:41,803 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:26:41,804 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add-1.i_Iteration28_Loop [2021-10-28 09:26:41,804 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:26:41,804 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:26:41,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:26:41,828 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:26:42,334 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:26:42,334 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:26:42,335 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:42,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:42,336 INFO L229 MonitoredProcess]: Starting monitored process 200 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:42,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (200)] Waiting until timeout for monitored process [2021-10-28 09:26:42,338 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:42,347 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:26:42,347 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:42,348 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:42,348 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:42,348 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:26:42,349 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:26:42,349 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:42,352 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:42,377 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (200)] Ended with exit code 0 [2021-10-28 09:26:42,377 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:42,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:42,378 INFO L229 MonitoredProcess]: Starting monitored process 201 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:42,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (201)] Waiting until timeout for monitored process [2021-10-28 09:26:42,379 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:42,388 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:26:42,389 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:42,389 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:42,389 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:42,389 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:26:42,391 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:26:42,391 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:42,395 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:42,421 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (201)] Ended with exit code 0 [2021-10-28 09:26:42,421 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 09:26:42,421 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:42,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:42,422 INFO L229 MonitoredProcess]: Starting monitored process 202 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:42,423 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:42,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (202)] Waiting until timeout for monitored process [2021-10-28 09:26:42,433 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:26:42,433 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:42,433 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:42,433 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:42,433 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:26:42,435 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:26:42,435 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:42,438 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:42,465 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (202)] Ended with exit code 0 [2021-10-28 09:26:42,465 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:42,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:42,466 INFO L229 MonitoredProcess]: Starting monitored process 203 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:42,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (203)] Waiting until timeout for monitored process [2021-10-28 09:26:42,468 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:42,477 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:26:42,478 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:42,478 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:42,478 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:42,478 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:26:42,481 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:26:42,481 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:42,487 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:42,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (203)] Ended with exit code 0 [2021-10-28 09:26:42,513 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 09:26:42,514 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:42,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:42,515 INFO L229 MonitoredProcess]: Starting monitored process 204 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:42,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (204)] Waiting until timeout for monitored process [2021-10-28 09:26:42,532 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:42,541 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:26:42,541 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:42,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:42,542 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:42,542 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:26:42,544 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:26:42,544 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:42,548 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:42,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (204)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:42,574 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:42,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:42,575 INFO L229 MonitoredProcess]: Starting monitored process 205 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:42,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (205)] Waiting until timeout for monitored process [2021-10-28 09:26:42,576 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:42,589 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:26:42,589 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:42,589 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:42,589 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:42,589 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:26:42,593 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:26:42,593 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:42,600 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:42,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (205)] Ended with exit code 0 [2021-10-28 09:26:42,626 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 09:26:42,627 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:42,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:42,628 INFO L229 MonitoredProcess]: Starting monitored process 206 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:42,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (206)] Waiting until timeout for monitored process [2021-10-28 09:26:42,633 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:42,642 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:26:42,643 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:42,643 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:42,643 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:42,643 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:26:42,645 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:26:42,646 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:42,651 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:42,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (206)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:42,677 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:42,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:42,678 INFO L229 MonitoredProcess]: Starting monitored process 207 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:42,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (207)] Waiting until timeout for monitored process [2021-10-28 09:26:42,680 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:42,690 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:26:42,690 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:42,690 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:42,690 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:42,690 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:26:42,696 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:26:42,696 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:42,704 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:42,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (207)] Ended with exit code 0 [2021-10-28 09:26:42,731 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 09:26:42,731 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:42,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:42,732 INFO L229 MonitoredProcess]: Starting monitored process 208 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:42,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (208)] Waiting until timeout for monitored process [2021-10-28 09:26:42,733 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:42,743 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:42,743 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:26:42,743 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:42,743 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:42,743 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:42,743 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:26:42,745 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:26:42,745 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:42,750 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:42,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (208)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:42,776 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:42,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:42,777 INFO L229 MonitoredProcess]: Starting monitored process 209 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:42,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (209)] Waiting until timeout for monitored process [2021-10-28 09:26:42,778 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:42,787 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:42,788 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:26:42,788 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:42,788 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:42,788 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:42,788 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:26:42,791 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:26:42,792 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:42,800 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:42,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (209)] Ended with exit code 0 [2021-10-28 09:26:42,826 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 09:26:42,826 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:42,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:42,827 INFO L229 MonitoredProcess]: Starting monitored process 210 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:42,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (210)] Waiting until timeout for monitored process [2021-10-28 09:26:42,829 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:42,839 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:42,839 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:26:42,839 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:42,840 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:42,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:42,840 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:26:42,842 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:26:42,842 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:42,850 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:42,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (210)] Ended with exit code 0 [2021-10-28 09:26:42,875 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:42,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:42,876 INFO L229 MonitoredProcess]: Starting monitored process 211 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:42,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (211)] Waiting until timeout for monitored process [2021-10-28 09:26:42,878 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:42,887 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:42,888 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:26:42,888 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:42,888 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:42,888 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:42,888 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:26:42,893 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:26:42,893 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:42,907 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:42,932 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (211)] Ended with exit code 0 [2021-10-28 09:26:42,932 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 09:26:42,932 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:42,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:42,934 INFO L229 MonitoredProcess]: Starting monitored process 212 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:42,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (212)] Waiting until timeout for monitored process [2021-10-28 09:26:42,935 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:42,945 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:42,945 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:26:42,945 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:42,945 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:42,945 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:42,945 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:26:42,949 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:26:42,954 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:42,965 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:42,990 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (212)] Ended with exit code 0 [2021-10-28 09:26:42,991 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:42,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:42,992 INFO L229 MonitoredProcess]: Starting monitored process 213 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:42,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (213)] Waiting until timeout for monitored process [2021-10-28 09:26:42,993 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:43,003 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:43,003 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:26:43,003 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:43,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:43,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:43,003 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:26:43,009 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:26:43,010 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:43,029 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:43,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (213)] Ended with exit code 0 [2021-10-28 09:26:43,055 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 09:26:43,056 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:43,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:43,057 INFO L229 MonitoredProcess]: Starting monitored process 214 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:43,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (214)] Waiting until timeout for monitored process [2021-10-28 09:26:43,058 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:43,068 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:43,068 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:26:43,068 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:43,068 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:43,068 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:43,069 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:26:43,071 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:26:43,071 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:43,078 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:43,104 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (214)] Ended with exit code 0 [2021-10-28 09:26:43,104 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:43,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:43,105 INFO L229 MonitoredProcess]: Starting monitored process 215 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:43,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (215)] Waiting until timeout for monitored process [2021-10-28 09:26:43,106 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:43,116 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:43,116 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:26:43,116 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:43,116 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:43,116 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:43,116 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:26:43,126 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:26:43,126 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:43,134 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:43,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (215)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:43,160 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 09:26:43,160 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:43,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:43,161 INFO L229 MonitoredProcess]: Starting monitored process 216 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:43,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (216)] Waiting until timeout for monitored process [2021-10-28 09:26:43,163 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:43,172 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:43,172 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:26:43,172 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:43,172 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:43,173 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:43,173 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:26:43,176 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:26:43,176 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:43,185 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:43,210 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (216)] Ended with exit code 0 [2021-10-28 09:26:43,211 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:43,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:43,212 INFO L229 MonitoredProcess]: Starting monitored process 217 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:43,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (217)] Waiting until timeout for monitored process [2021-10-28 09:26:43,216 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:43,226 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:43,226 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:26:43,226 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:43,226 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:43,226 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:43,227 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:26:43,233 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:26:43,233 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:43,247 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:43,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (217)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:43,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:26:43,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:26:43,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:26:43,274 INFO L87 Difference]: Start difference. First operand 576 states and 640 transitions. cyclomatic complexity: 67 Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:26:44,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:26:44,257 INFO L93 Difference]: Finished difference Result 708 states and 780 transitions. [2021-10-28 09:26:44,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 09:26:44,258 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 708 states and 780 transitions. [2021-10-28 09:26:44,260 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 62 [2021-10-28 09:26:44,264 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 708 states to 649 states and 712 transitions. [2021-10-28 09:26:44,265 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 649 [2021-10-28 09:26:44,265 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 649 [2021-10-28 09:26:44,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 649 states and 712 transitions. [2021-10-28 09:26:44,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:26:44,266 INFO L681 BuchiCegarLoop]: Abstraction has 649 states and 712 transitions. [2021-10-28 09:26:44,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states and 712 transitions. [2021-10-28 09:26:44,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 446. [2021-10-28 09:26:44,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 446 states have (on average 1.116591928251121) internal successors, (498), 445 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:26:44,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 498 transitions. [2021-10-28 09:26:44,303 INFO L704 BuchiCegarLoop]: Abstraction has 446 states and 498 transitions. [2021-10-28 09:26:44,304 INFO L587 BuchiCegarLoop]: Abstraction has 446 states and 498 transitions. [2021-10-28 09:26:44,304 INFO L425 BuchiCegarLoop]: ======== Iteration 29============ [2021-10-28 09:26:44,304 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 446 states and 498 transitions. [2021-10-28 09:26:44,305 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 43 [2021-10-28 09:26:44,306 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:26:44,306 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:26:44,306 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:26:44,307 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:26:44,307 INFO L791 eck$LassoCheckResult]: Stem: 32729#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 32721#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~0 := main_#t~nondet4;havoc main_#t~nondet4;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 32710#L51 assume !(0 == mp_add_~a3~0 % 256); 32711#L51-1 mp_add_~nb~0 := 4; 32713#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 32715#L63 assume !(0 == mp_add_~b2~0 % 256); 32716#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 32943#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 32944#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 32939#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 32940#L76-2 assume !(1 == mp_add_~i~0 % 256); 32935#L77-1 assume !(2 == mp_add_~i~0 % 256); 32936#L78-1 assume !(3 == mp_add_~i~0 % 256); 32931#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 32932#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 32745#L82-2 assume !(1 == mp_add_~i~0 % 256); 32746#L83-1 assume !(2 == mp_add_~i~0 % 256); 32921#L84-1 assume !(3 == mp_add_~i~0 % 256); 32922#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 32917#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 32918#L91-1 assume !(1 == mp_add_~i~0 % 256); 32913#L92-1 assume !(2 == mp_add_~i~0 % 256); 32914#L93-1 assume !(3 == mp_add_~i~0 % 256); 32909#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 32910#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 32905#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 32906#L76 assume !(0 == mp_add_~i~0 % 256); 32901#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 32902#L77-1 assume !(2 == mp_add_~i~0 % 256); 32897#L78-1 assume !(3 == mp_add_~i~0 % 256); 32898#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 33076#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 33075#L87-1 assume !(0 == mp_add_~i~0 % 256); 33074#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 33073#L92-1 assume !(2 == mp_add_~i~0 % 256); 33072#L93-1 assume !(3 == mp_add_~i~0 % 256); 33071#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 33070#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 33069#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 33068#L76 assume !(0 == mp_add_~i~0 % 256); 33067#L76-2 assume !(1 == mp_add_~i~0 % 256); 33066#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 32734#L78-1 assume !(3 == mp_add_~i~0 % 256); 32735#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 33112#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 33111#L87-1 assume !(0 == mp_add_~i~0 % 256); 33110#L91-1 assume !(1 == mp_add_~i~0 % 256); 33109#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 32728#L93-1 assume !(3 == mp_add_~i~0 % 256); 32725#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 32722#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 32723#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 33065#L76 assume !(0 == mp_add_~i~0 % 256); 33064#L76-2 assume !(1 == mp_add_~i~0 % 256); 33063#L77-1 assume !(2 == mp_add_~i~0 % 256); 33062#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 32747#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 32733#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 32724#L87-1 assume !(0 == mp_add_~i~0 % 256); 32718#L91-1 assume !(1 == mp_add_~i~0 % 256); 32719#L92-1 assume !(2 == mp_add_~i~0 % 256); 32720#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 33102#L94-1 [2021-10-28 09:26:44,307 INFO L793 eck$LassoCheckResult]: Loop: 33102#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 33101#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 32743#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 32744#L76 assume !(0 == mp_add_~i~0 % 256); 32730#L76-2 assume !(1 == mp_add_~i~0 % 256); 32731#L77-1 assume !(2 == mp_add_~i~0 % 256); 32732#L78-1 assume !(3 == mp_add_~i~0 % 256); 33108#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 33107#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 33106#L87-1 assume !(0 == mp_add_~i~0 % 256); 33105#L91-1 assume !(1 == mp_add_~i~0 % 256); 33104#L92-1 assume !(2 == mp_add_~i~0 % 256); 33103#L93-1 assume !(3 == mp_add_~i~0 % 256); 33102#L94-1 [2021-10-28 09:26:44,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:26:44,307 INFO L85 PathProgramCache]: Analyzing trace with hash 685993656, now seen corresponding path program 1 times [2021-10-28 09:26:44,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:26:44,308 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932792782] [2021-10-28 09:26:44,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:26:44,308 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:26:44,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:26:44,590 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 45 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-10-28 09:26:44,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:26:44,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932792782] [2021-10-28 09:26:44,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932792782] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:26:44,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475409000] [2021-10-28 09:26:44,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:26:44,591 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:26:44,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:44,592 INFO L229 MonitoredProcess]: Starting monitored process 218 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:26:44,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (218)] Waiting until timeout for monitored process [2021-10-28 09:26:45,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:26:45,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 09:26:45,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:26:46,183 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 45 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-10-28 09:26:46,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1475409000] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:26:46,184 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:26:46,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 10 [2021-10-28 09:26:46,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082284507] [2021-10-28 09:26:46,185 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:26:46,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:26:46,185 INFO L85 PathProgramCache]: Analyzing trace with hash 672830572, now seen corresponding path program 3 times [2021-10-28 09:26:46,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:26:46,186 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559117207] [2021-10-28 09:26:46,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:26:46,186 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:26:46,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:26:46,199 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:26:46,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:26:46,204 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:26:46,511 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:26:46,511 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:26:46,511 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:26:46,511 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:26:46,511 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:26:46,511 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:46,511 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:26:46,511 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:26:46,511 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add-1.i_Iteration29_Loop [2021-10-28 09:26:46,512 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:26:46,512 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:26:46,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:26:46,565 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:26:47,166 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:26:47,166 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:26:47,167 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:47,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:47,172 INFO L229 MonitoredProcess]: Starting monitored process 219 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:47,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (219)] Waiting until timeout for monitored process [2021-10-28 09:26:47,174 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:26:47,174 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:26:47,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (219)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:47,260 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:47,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:47,261 INFO L229 MonitoredProcess]: Starting monitored process 220 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:47,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (220)] Waiting until timeout for monitored process [2021-10-28 09:26:47,263 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:26:47,263 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:26:47,824 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:26:47,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (220)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:47,828 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:26:47,828 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:26:47,828 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:26:47,828 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:26:47,828 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:26:47,828 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:47,828 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:26:47,829 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:26:47,829 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add-1.i_Iteration29_Loop [2021-10-28 09:26:47,829 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:26:47,829 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:26:47,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:26:47,875 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:26:48,428 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:26:48,429 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:26:48,429 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:48,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:48,430 INFO L229 MonitoredProcess]: Starting monitored process 221 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:48,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (221)] Waiting until timeout for monitored process [2021-10-28 09:26:48,432 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:48,441 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:26:48,441 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:48,441 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:48,441 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:48,441 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:26:48,443 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:26:48,444 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:48,448 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:48,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (221)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:48,474 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:48,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:48,475 INFO L229 MonitoredProcess]: Starting monitored process 222 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:48,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (222)] Waiting until timeout for monitored process [2021-10-28 09:26:48,476 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:48,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:26:48,485 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:48,485 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:48,485 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:48,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:26:48,487 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:26:48,487 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:48,489 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:48,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (222)] Ended with exit code 0 [2021-10-28 09:26:48,515 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 09:26:48,515 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:48,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:48,516 INFO L229 MonitoredProcess]: Starting monitored process 223 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:48,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (223)] Waiting until timeout for monitored process [2021-10-28 09:26:48,518 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:48,527 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:26:48,527 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:48,528 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:48,528 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:48,528 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:26:48,531 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:26:48,531 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:48,537 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:48,562 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (223)] Ended with exit code 0 [2021-10-28 09:26:48,563 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:48,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:48,564 INFO L229 MonitoredProcess]: Starting monitored process 224 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:48,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (224)] Waiting until timeout for monitored process [2021-10-28 09:26:48,565 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:48,574 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:26:48,575 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:48,575 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:48,575 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:48,575 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:26:48,577 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:26:48,577 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:48,580 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:48,606 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (224)] Ended with exit code 0 [2021-10-28 09:26:48,606 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 09:26:48,606 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:48,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:48,607 INFO L229 MonitoredProcess]: Starting monitored process 225 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:48,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (225)] Waiting until timeout for monitored process [2021-10-28 09:26:48,609 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:48,618 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:26:48,618 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:48,619 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:48,619 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:48,619 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:26:48,623 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:26:48,623 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:48,630 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:48,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (225)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:48,656 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:48,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:48,658 INFO L229 MonitoredProcess]: Starting monitored process 226 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:48,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (226)] Waiting until timeout for monitored process [2021-10-28 09:26:48,659 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:48,668 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:26:48,669 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:48,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:48,669 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:48,669 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:26:48,671 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:26:48,671 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:48,676 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:48,701 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (226)] Ended with exit code 0 [2021-10-28 09:26:48,701 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 09:26:48,701 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:48,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:48,702 INFO L229 MonitoredProcess]: Starting monitored process 227 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:48,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (227)] Waiting until timeout for monitored process [2021-10-28 09:26:48,704 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:48,714 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:26:48,714 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:48,714 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:48,714 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:48,714 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:26:48,720 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:26:48,720 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:48,728 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:48,754 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (227)] Ended with exit code 0 [2021-10-28 09:26:48,755 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:48,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:48,756 INFO L229 MonitoredProcess]: Starting monitored process 228 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:48,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (228)] Waiting until timeout for monitored process [2021-10-28 09:26:48,757 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:48,767 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:26:48,767 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:48,767 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:48,767 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:48,767 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:26:48,770 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:26:48,770 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:48,775 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:48,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (228)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:48,802 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 09:26:48,802 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:48,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:48,803 INFO L229 MonitoredProcess]: Starting monitored process 229 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:48,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (229)] Waiting until timeout for monitored process [2021-10-28 09:26:48,805 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:48,814 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:48,814 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:26:48,815 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:48,815 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:48,815 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:48,815 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:26:48,819 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:26:48,819 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:48,829 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:48,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (229)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:48,855 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:48,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:48,856 INFO L229 MonitoredProcess]: Starting monitored process 230 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:48,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (230)] Waiting until timeout for monitored process [2021-10-28 09:26:48,857 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:48,866 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:48,867 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:26:48,867 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:48,867 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:48,867 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:48,867 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:26:48,869 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:26:48,869 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:48,874 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:48,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (230)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:48,900 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 09:26:48,901 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:48,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:48,902 INFO L229 MonitoredProcess]: Starting monitored process 231 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:48,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (231)] Waiting until timeout for monitored process [2021-10-28 09:26:48,903 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:48,913 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:48,913 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:26:48,913 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:48,913 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:48,913 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:48,914 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:26:48,920 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:26:48,920 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:48,936 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:48,961 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (231)] Ended with exit code 0 [2021-10-28 09:26:48,961 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:48,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:48,962 INFO L229 MonitoredProcess]: Starting monitored process 232 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:48,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (232)] Waiting until timeout for monitored process [2021-10-28 09:26:48,964 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:48,974 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:48,974 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:26:48,974 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:48,974 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:48,974 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:48,974 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:26:48,977 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:26:48,977 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:48,985 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:49,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (232)] Ended with exit code 0 [2021-10-28 09:26:49,011 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 09:26:49,011 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:49,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:49,016 INFO L229 MonitoredProcess]: Starting monitored process 233 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:49,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (233)] Waiting until timeout for monitored process [2021-10-28 09:26:49,018 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:49,029 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:49,029 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:26:49,029 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:49,029 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:49,029 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:49,029 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:26:49,036 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:26:49,037 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:49,060 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:49,087 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (233)] Ended with exit code 0 [2021-10-28 09:26:49,087 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:49,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:49,088 INFO L229 MonitoredProcess]: Starting monitored process 234 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:49,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (234)] Waiting until timeout for monitored process [2021-10-28 09:26:49,090 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:49,100 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:49,100 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:26:49,100 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:49,100 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:49,100 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:49,101 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:26:49,104 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:26:49,104 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:49,117 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:49,144 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (234)] Ended with exit code 0 [2021-10-28 09:26:49,144 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 09:26:49,144 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:49,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:49,145 INFO L229 MonitoredProcess]: Starting monitored process 235 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:49,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (235)] Waiting until timeout for monitored process [2021-10-28 09:26:49,147 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:49,157 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:49,157 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:26:49,157 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:49,157 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:49,157 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:49,158 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:26:49,162 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:26:49,162 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:49,172 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:49,197 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (235)] Ended with exit code 0 [2021-10-28 09:26:49,198 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:49,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:49,199 INFO L229 MonitoredProcess]: Starting monitored process 236 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:49,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (236)] Waiting until timeout for monitored process [2021-10-28 09:26:49,200 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:49,209 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:49,210 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:26:49,210 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:49,210 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:49,210 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:49,210 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:26:49,212 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:26:49,212 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:49,218 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:49,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (236)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:49,244 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 09:26:49,244 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:49,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:49,245 INFO L229 MonitoredProcess]: Starting monitored process 237 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:49,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (237)] Waiting until timeout for monitored process [2021-10-28 09:26:49,246 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:49,256 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:49,256 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:26:49,256 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:49,257 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:49,257 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:49,257 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:26:49,274 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:26:49,274 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:49,296 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:49,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (237)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:49,342 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:49,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:49,343 INFO L229 MonitoredProcess]: Starting monitored process 238 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:49,354 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:49,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (238)] Waiting until timeout for monitored process [2021-10-28 09:26:49,365 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:49,365 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:26:49,365 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:49,366 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:49,366 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:49,366 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:26:49,369 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:26:49,370 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:49,379 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:49,404 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (238)] Ended with exit code 0 [2021-10-28 09:26:49,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:26:49,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 09:26:49,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:26:49,405 INFO L87 Difference]: Start difference. First operand 446 states and 498 transitions. cyclomatic complexity: 55 Second operand has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:26:50,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:26:50,667 INFO L93 Difference]: Finished difference Result 904 states and 992 transitions. [2021-10-28 09:26:50,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:26:50,669 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 904 states and 992 transitions. [2021-10-28 09:26:50,674 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 116 [2021-10-28 09:26:50,681 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 904 states to 904 states and 992 transitions. [2021-10-28 09:26:50,681 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 904 [2021-10-28 09:26:50,682 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 904 [2021-10-28 09:26:50,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 904 states and 992 transitions. [2021-10-28 09:26:50,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:26:50,684 INFO L681 BuchiCegarLoop]: Abstraction has 904 states and 992 transitions. [2021-10-28 09:26:50,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states and 992 transitions. [2021-10-28 09:26:50,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 496. [2021-10-28 09:26:50,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 496 states have (on average 1.1108870967741935) internal successors, (551), 495 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:26:50,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 551 transitions. [2021-10-28 09:26:50,702 INFO L704 BuchiCegarLoop]: Abstraction has 496 states and 551 transitions. [2021-10-28 09:26:50,702 INFO L587 BuchiCegarLoop]: Abstraction has 496 states and 551 transitions. [2021-10-28 09:26:50,702 INFO L425 BuchiCegarLoop]: ======== Iteration 30============ [2021-10-28 09:26:50,703 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 496 states and 551 transitions. [2021-10-28 09:26:50,705 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 43 [2021-10-28 09:26:50,705 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:26:50,705 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:26:50,706 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:26:50,707 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:26:50,707 INFO L791 eck$LassoCheckResult]: Stem: 34282#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 34274#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~0 := main_#t~nondet4;havoc main_#t~nondet4;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 34262#L51 assume !(0 == mp_add_~a3~0 % 256); 34263#L51-1 mp_add_~nb~0 := 4; 34278#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 34693#L63 assume 0 == mp_add_~b2~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 34718#L65 assume 0 == mp_add_~b1~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 34717#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 34716#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 34715#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 34714#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 34713#L76-2 assume !(1 == mp_add_~i~0 % 256); 34712#L77-1 assume !(2 == mp_add_~i~0 % 256); 34711#L78-1 assume !(3 == mp_add_~i~0 % 256); 34710#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 34709#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 34708#L82-2 assume !(1 == mp_add_~i~0 % 256); 34707#L83-1 assume !(2 == mp_add_~i~0 % 256); 34706#L84-1 assume !(3 == mp_add_~i~0 % 256); 34705#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 34704#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 34703#L91-1 assume !(1 == mp_add_~i~0 % 256); 34702#L92-1 assume !(2 == mp_add_~i~0 % 256); 34701#L93-1 assume !(3 == mp_add_~i~0 % 256); 34700#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 34699#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 34698#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 34697#L76 assume !(0 == mp_add_~i~0 % 256); 34696#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 34695#L77-1 assume !(2 == mp_add_~i~0 % 256); 34694#L78-1 assume !(3 == mp_add_~i~0 % 256); 34315#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 34317#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 34577#L87-1 assume !(0 == mp_add_~i~0 % 256); 34576#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 34575#L92-1 assume !(2 == mp_add_~i~0 % 256); 34574#L93-1 assume !(3 == mp_add_~i~0 % 256); 34573#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 34572#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 34571#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 34570#L76 assume !(0 == mp_add_~i~0 % 256); 34569#L76-2 assume !(1 == mp_add_~i~0 % 256); 34568#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 34567#L78-1 assume !(3 == mp_add_~i~0 % 256); 34461#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 34458#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 34455#L87-1 assume !(0 == mp_add_~i~0 % 256); 34452#L91-1 assume !(1 == mp_add_~i~0 % 256); 34449#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 34446#L93-1 assume !(3 == mp_add_~i~0 % 256); 34443#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 34440#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 34436#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 34432#L76 assume !(0 == mp_add_~i~0 % 256); 34428#L76-2 assume !(1 == mp_add_~i~0 % 256); 34424#L77-1 assume !(2 == mp_add_~i~0 % 256); 34420#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 34408#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 34409#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 34682#L87-1 assume !(0 == mp_add_~i~0 % 256); 34680#L91-1 assume !(1 == mp_add_~i~0 % 256); 34678#L92-1 assume !(2 == mp_add_~i~0 % 256); 34676#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 34675#L94-1 [2021-10-28 09:26:50,707 INFO L793 eck$LassoCheckResult]: Loop: 34675#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 34674#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 34673#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 34672#L76 assume !(0 == mp_add_~i~0 % 256); 34671#L76-2 assume !(1 == mp_add_~i~0 % 256); 34670#L77-1 assume !(2 == mp_add_~i~0 % 256); 34669#L78-1 assume !(3 == mp_add_~i~0 % 256); 34663#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 34664#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 34683#L87-1 assume !(0 == mp_add_~i~0 % 256); 34681#L91-1 assume !(1 == mp_add_~i~0 % 256); 34679#L92-1 assume !(2 == mp_add_~i~0 % 256); 34677#L93-1 assume !(3 == mp_add_~i~0 % 256); 34675#L94-1 [2021-10-28 09:26:50,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:26:50,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1728940926, now seen corresponding path program 1 times [2021-10-28 09:26:50,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:26:50,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287690086] [2021-10-28 09:26:50,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:26:50,709 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:26:50,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:26:50,736 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:26:50,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:26:50,769 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:26:50,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:26:50,770 INFO L85 PathProgramCache]: Analyzing trace with hash 672830572, now seen corresponding path program 4 times [2021-10-28 09:26:50,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:26:50,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215330045] [2021-10-28 09:26:50,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:26:50,770 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:26:50,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:26:50,778 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:26:50,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:26:50,783 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:26:50,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:26:50,784 INFO L85 PathProgramCache]: Analyzing trace with hash 334650383, now seen corresponding path program 2 times [2021-10-28 09:26:50,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:26:50,785 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606743545] [2021-10-28 09:26:50,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:26:50,785 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:26:50,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:26:51,173 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 40 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:26:51,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:26:51,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606743545] [2021-10-28 09:26:51,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606743545] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:26:51,174 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245920135] [2021-10-28 09:26:51,174 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:26:51,174 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:26:51,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:51,176 INFO L229 MonitoredProcess]: Starting monitored process 239 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:26:51,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (239)] Waiting until timeout for monitored process [2021-10-28 09:26:51,856 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 09:26:51,856 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:26:51,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 09:26:51,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:26:53,132 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 24 proven. 16 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-10-28 09:26:53,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245920135] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:26:53,133 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:26:53,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 13 [2021-10-28 09:26:53,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289180239] [2021-10-28 09:26:53,527 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:26:53,527 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:26:53,527 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:26:53,527 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:26:53,527 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:26:53,527 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:53,527 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:26:53,528 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:26:53,528 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add-1.i_Iteration30_Loop [2021-10-28 09:26:53,528 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:26:53,528 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:26:53,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:26:53,591 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:26:54,128 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:26:54,128 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:26:54,128 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:54,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:54,130 INFO L229 MonitoredProcess]: Starting monitored process 240 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:54,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (240)] Waiting until timeout for monitored process [2021-10-28 09:26:54,131 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:26:54,131 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:26:54,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (240)] Ended with exit code 0 [2021-10-28 09:26:54,215 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:54,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:54,216 INFO L229 MonitoredProcess]: Starting monitored process 241 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:54,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (241)] Waiting until timeout for monitored process [2021-10-28 09:26:54,220 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:26:54,220 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:26:55,813 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:26:55,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (241)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:55,819 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:26:55,819 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:26:55,819 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:26:55,819 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:26:55,819 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:26:55,819 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:55,820 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:26:55,820 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:26:55,820 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add-1.i_Iteration30_Loop [2021-10-28 09:26:55,820 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:26:55,820 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:26:55,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:26:55,844 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:26:56,442 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:26:56,442 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:26:56,442 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:56,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:56,443 INFO L229 MonitoredProcess]: Starting monitored process 242 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:56,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (242)] Waiting until timeout for monitored process [2021-10-28 09:26:56,445 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:56,454 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:26:56,454 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:56,454 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:56,454 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:56,454 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:26:56,455 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:26:56,456 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:56,458 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:56,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (242)] Ended with exit code 0 [2021-10-28 09:26:56,484 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:56,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:56,485 INFO L229 MonitoredProcess]: Starting monitored process 243 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:56,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (243)] Waiting until timeout for monitored process [2021-10-28 09:26:56,487 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:56,496 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:26:56,496 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:56,496 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:56,496 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:56,496 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:26:56,499 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:26:56,499 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:56,503 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:56,529 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (243)] Ended with exit code 0 [2021-10-28 09:26:56,529 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 09:26:56,529 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:56,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:56,530 INFO L229 MonitoredProcess]: Starting monitored process 244 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:56,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (244)] Waiting until timeout for monitored process [2021-10-28 09:26:56,532 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:56,541 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:26:56,541 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:56,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:56,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:56,542 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:26:56,543 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:26:56,543 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:56,547 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:56,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (244)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:56,573 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:56,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:56,574 INFO L229 MonitoredProcess]: Starting monitored process 245 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:56,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (245)] Waiting until timeout for monitored process [2021-10-28 09:26:56,575 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:56,585 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:26:56,585 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:56,585 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:56,585 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:56,586 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:26:56,589 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:26:56,589 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:56,595 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:56,620 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (245)] Ended with exit code 0 [2021-10-28 09:26:56,620 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 09:26:56,620 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:56,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:56,621 INFO L229 MonitoredProcess]: Starting monitored process 246 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:56,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (246)] Waiting until timeout for monitored process [2021-10-28 09:26:56,623 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:56,632 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:26:56,633 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:56,633 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:56,633 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:56,633 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:26:56,635 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:26:56,635 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:56,640 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:56,665 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (246)] Ended with exit code 0 [2021-10-28 09:26:56,666 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:56,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:56,669 INFO L229 MonitoredProcess]: Starting monitored process 247 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:56,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (247)] Waiting until timeout for monitored process [2021-10-28 09:26:56,671 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:56,681 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:26:56,681 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:56,682 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:56,682 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:56,682 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:26:56,687 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:26:56,688 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:56,695 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:56,720 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (247)] Ended with exit code 0 [2021-10-28 09:26:56,720 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 09:26:56,721 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:56,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:56,722 INFO L229 MonitoredProcess]: Starting monitored process 248 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:56,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (248)] Waiting until timeout for monitored process [2021-10-28 09:26:56,723 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:56,733 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:26:56,733 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:56,733 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:56,733 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:56,733 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:26:56,736 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:26:56,736 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:56,741 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:56,767 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (248)] Ended with exit code 0 [2021-10-28 09:26:56,768 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:56,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:56,769 INFO L229 MonitoredProcess]: Starting monitored process 249 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:56,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (249)] Waiting until timeout for monitored process [2021-10-28 09:26:56,771 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:56,781 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:26:56,781 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:56,781 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:56,781 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:56,781 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:26:56,787 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:26:56,787 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:56,795 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:56,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (249)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:56,830 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 09:26:56,830 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:56,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:56,831 INFO L229 MonitoredProcess]: Starting monitored process 250 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:56,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (250)] Waiting until timeout for monitored process [2021-10-28 09:26:56,833 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:56,842 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:56,843 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:26:56,843 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:56,843 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:56,843 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:56,843 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:26:56,846 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:26:56,846 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:56,869 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:56,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (250)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:56,903 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:56,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:56,904 INFO L229 MonitoredProcess]: Starting monitored process 251 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:56,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (251)] Waiting until timeout for monitored process [2021-10-28 09:26:56,905 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:56,915 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:56,915 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:26:56,915 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:56,915 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:56,915 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:56,915 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:26:56,919 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:26:56,919 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:56,929 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:56,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (251)] Ended with exit code 0 [2021-10-28 09:26:56,955 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 09:26:56,955 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:56,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:56,956 INFO L229 MonitoredProcess]: Starting monitored process 252 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:56,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (252)] Waiting until timeout for monitored process [2021-10-28 09:26:56,959 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 [2021-10-28 09:26:56,969 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:56,969 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:26:56,969 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:56,969 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:56,969 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:56,969 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:26:56,972 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:26:56,972 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:56,981 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:57,007 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (252)] Ended with exit code 0 [2021-10-28 09:26:57,007 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:57,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:57,008 INFO L229 MonitoredProcess]: Starting monitored process 253 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:57,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (253)] Waiting until timeout for monitored process [2021-10-28 09:26:57,010 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:57,020 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:57,021 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:26:57,021 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:57,021 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:57,021 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:57,021 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:26:57,027 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:26:57,027 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:57,041 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:57,071 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (253)] Ended with exit code 0 [2021-10-28 09:26:57,071 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 09:26:57,071 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:57,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:57,072 INFO L229 MonitoredProcess]: Starting monitored process 254 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:57,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (254)] Waiting until timeout for monitored process [2021-10-28 09:26:57,075 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:57,085 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:57,085 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:26:57,086 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:57,086 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:57,086 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:57,086 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:26:57,090 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:26:57,090 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:57,101 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:57,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (254)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:57,127 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:57,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:57,129 INFO L229 MonitoredProcess]: Starting monitored process 255 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:57,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (255)] Waiting until timeout for monitored process [2021-10-28 09:26:57,131 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:57,141 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:57,141 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:26:57,141 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:57,142 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:57,142 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:57,142 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:26:57,150 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:26:57,150 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:57,185 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:57,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (255)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:57,229 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 09:26:57,229 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:57,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:57,235 INFO L229 MonitoredProcess]: Starting monitored process 256 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:57,270 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:57,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (256)] Waiting until timeout for monitored process [2021-10-28 09:26:57,282 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:57,283 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:26:57,283 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:57,283 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:57,283 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:57,283 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:26:57,286 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:26:57,287 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:57,299 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:57,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (256)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:57,342 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:57,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:57,343 INFO L229 MonitoredProcess]: Starting monitored process 257 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:57,346 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:57,358 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:57,358 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:26:57,358 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:57,359 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:57,359 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:57,359 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:26:57,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (257)] Waiting until timeout for monitored process [2021-10-28 09:26:57,365 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:26:57,365 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:57,384 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:57,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (257)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:57,427 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 09:26:57,427 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:57,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:57,430 INFO L229 MonitoredProcess]: Starting monitored process 258 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:57,433 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:57,445 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:57,445 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:26:57,445 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:57,446 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:57,446 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:57,446 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:26:57,451 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:26:57,451 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:57,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (258)] Waiting until timeout for monitored process [2021-10-28 09:26:57,473 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:57,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (258)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:57,513 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:26:57,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:26:57,518 INFO L229 MonitoredProcess]: Starting monitored process 259 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:26:57,520 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:26:57,533 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:26:57,533 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:26:57,533 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:26:57,533 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:26:57,533 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:26:57,533 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:26:57,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (259)] Waiting until timeout for monitored process [2021-10-28 09:26:57,543 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:26:57,543 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:26:57,565 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:26:57,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (259)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:57,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:26:57,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 09:26:57,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:26:57,609 INFO L87 Difference]: Start difference. First operand 496 states and 551 transitions. cyclomatic complexity: 58 Second operand has 13 states, 13 states have (on average 8.307692307692308) internal successors, (108), 13 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:27:01,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:27:01,479 INFO L93 Difference]: Finished difference Result 676 states and 739 transitions. [2021-10-28 09:27:01,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-28 09:27:01,480 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 676 states and 739 transitions. [2021-10-28 09:27:01,483 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 56 [2021-10-28 09:27:01,487 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 676 states to 642 states and 700 transitions. [2021-10-28 09:27:01,487 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 642 [2021-10-28 09:27:01,487 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 642 [2021-10-28 09:27:01,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 642 states and 700 transitions. [2021-10-28 09:27:01,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:27:01,489 INFO L681 BuchiCegarLoop]: Abstraction has 642 states and 700 transitions. [2021-10-28 09:27:01,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states and 700 transitions. [2021-10-28 09:27:01,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 421. [2021-10-28 09:27:01,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 421 states have (on average 1.1163895486935866) internal successors, (470), 420 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:27:01,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 470 transitions. [2021-10-28 09:27:01,502 INFO L704 BuchiCegarLoop]: Abstraction has 421 states and 470 transitions. [2021-10-28 09:27:01,502 INFO L587 BuchiCegarLoop]: Abstraction has 421 states and 470 transitions. [2021-10-28 09:27:01,502 INFO L425 BuchiCegarLoop]: ======== Iteration 31============ [2021-10-28 09:27:01,502 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 421 states and 470 transitions. [2021-10-28 09:27:01,504 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 43 [2021-10-28 09:27:01,504 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:27:01,504 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:27:01,505 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:27:01,506 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:27:01,506 INFO L791 eck$LassoCheckResult]: Stem: 35726#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 35717#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~0 := main_#t~nondet4;havoc main_#t~nondet4;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 35707#L51 assume 0 == mp_add_~a3~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 35709#L53 assume 0 == mp_add_~a2~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 35735#L55 assume 0 == mp_add_~a1~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 35736#L51-1 mp_add_~nb~0 := 4; 35786#L61 assume !(0 == mp_add_~b3~0 % 256); 35787#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 35991#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 35989#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 35987#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 35985#L76-2 assume !(1 == mp_add_~i~0 % 256); 35983#L77-1 assume !(2 == mp_add_~i~0 % 256); 35981#L78-1 assume !(3 == mp_add_~i~0 % 256); 35979#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 35977#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 35975#L82-2 assume !(1 == mp_add_~i~0 % 256); 35973#L83-1 assume !(2 == mp_add_~i~0 % 256); 35971#L84-1 assume !(3 == mp_add_~i~0 % 256); 35969#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 35967#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 35965#L91-1 assume !(1 == mp_add_~i~0 % 256); 35963#L92-1 assume !(2 == mp_add_~i~0 % 256); 35961#L93-1 assume !(3 == mp_add_~i~0 % 256); 35959#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 35957#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 35955#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 35763#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 36098#L82 assume !(0 == mp_add_~i~0 % 256); 36097#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 36096#L83-1 assume !(2 == mp_add_~i~0 % 256); 36095#L84-1 assume !(3 == mp_add_~i~0 % 256); 36094#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 36093#L87-1 assume !(0 == mp_add_~i~0 % 256); 36092#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 36091#L92-1 assume !(2 == mp_add_~i~0 % 256); 36090#L93-1 assume !(3 == mp_add_~i~0 % 256); 36089#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 36088#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 36087#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 35920#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 36086#L82 assume !(0 == mp_add_~i~0 % 256); 36085#L82-2 assume !(1 == mp_add_~i~0 % 256); 36083#L83-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b2~0 % 256; 36084#L84-1 assume !(3 == mp_add_~i~0 % 256); 36124#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 36123#L87-1 assume !(0 == mp_add_~i~0 % 256); 36122#L91-1 assume !(1 == mp_add_~i~0 % 256); 36121#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 36120#L93-1 assume !(3 == mp_add_~i~0 % 256); 36119#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 36118#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 36117#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 35731#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 36116#L82 assume !(0 == mp_add_~i~0 % 256); 36115#L82-2 assume !(1 == mp_add_~i~0 % 256); 36103#L83-1 assume !(2 == mp_add_~i~0 % 256); 36100#L84-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b3~0 % 256; 36101#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 36114#L87-1 assume !(0 == mp_add_~i~0 % 256); 36127#L91-1 assume !(1 == mp_add_~i~0 % 256); 36126#L92-1 assume !(2 == mp_add_~i~0 % 256); 36125#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 35723#L94-1 [2021-10-28 09:27:01,506 INFO L793 eck$LassoCheckResult]: Loop: 35723#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 35718#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 35719#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 35738#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 35732#L82 assume !(0 == mp_add_~i~0 % 256); 35733#L82-2 assume !(1 == mp_add_~i~0 % 256); 35739#L83-1 assume !(2 == mp_add_~i~0 % 256); 35734#L84-1 assume !(3 == mp_add_~i~0 % 256); 35730#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 35720#L87-1 assume !(0 == mp_add_~i~0 % 256); 35714#L91-1 assume !(1 == mp_add_~i~0 % 256); 35715#L92-1 assume !(2 == mp_add_~i~0 % 256); 35716#L93-1 assume !(3 == mp_add_~i~0 % 256); 35723#L94-1 [2021-10-28 09:27:01,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:27:01,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1520812614, now seen corresponding path program 1 times [2021-10-28 09:27:01,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:27:01,507 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964219954] [2021-10-28 09:27:01,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:27:01,508 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:27:01,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:27:01,534 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:27:01,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:27:01,567 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:27:01,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:27:01,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 9 times [2021-10-28 09:27:01,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:27:01,568 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164789761] [2021-10-28 09:27:01,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:27:01,569 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:27:01,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:27:01,576 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:27:01,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:27:01,580 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:27:01,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:27:01,581 INFO L85 PathProgramCache]: Analyzing trace with hash -2088026333, now seen corresponding path program 2 times [2021-10-28 09:27:01,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:27:01,582 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781205938] [2021-10-28 09:27:01,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:27:01,582 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:27:01,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:27:01,924 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 36 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:27:01,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:27:01,925 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781205938] [2021-10-28 09:27:01,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781205938] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:27:01,925 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917922647] [2021-10-28 09:27:01,925 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:27:01,926 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:27:01,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:01,927 INFO L229 MonitoredProcess]: Starting monitored process 260 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:27:01,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (260)] Waiting until timeout for monitored process [2021-10-28 09:27:02,456 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 09:27:02,456 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:27:02,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 09:27:02,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:27:03,506 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 20 proven. 16 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-10-28 09:27:03,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917922647] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:27:03,507 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:27:03,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 13 [2021-10-28 09:27:03,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819977629] [2021-10-28 09:27:03,776 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:27:03,776 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:27:03,777 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:27:03,777 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:27:03,777 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:27:03,777 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:03,777 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:27:03,777 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:27:03,777 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add-1.i_Iteration31_Loop [2021-10-28 09:27:03,777 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:27:03,777 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:27:03,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:27:03,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:27:04,356 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:27:04,356 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:27:04,357 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:04,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:04,358 INFO L229 MonitoredProcess]: Starting monitored process 261 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:04,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (261)] Waiting until timeout for monitored process [2021-10-28 09:27:04,359 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:27:04,359 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:27:04,379 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:27:04,380 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_mp_add_~partial_sum~0=0, ULTIMATE.start_mp_add_~carry~0=0} Honda state: {ULTIMATE.start_mp_add_~partial_sum~0=0, ULTIMATE.start_mp_add_~carry~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:27:04,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (261)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:04,405 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:04,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:04,406 INFO L229 MonitoredProcess]: Starting monitored process 262 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:04,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (262)] Waiting until timeout for monitored process [2021-10-28 09:27:04,407 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:27:04,407 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:27:04,491 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (262)] Ended with exit code 0 [2021-10-28 09:27:04,491 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:04,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:04,492 INFO L229 MonitoredProcess]: Starting monitored process 263 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:04,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (263)] Waiting until timeout for monitored process [2021-10-28 09:27:04,494 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:27:04,494 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:27:05,568 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:27:05,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (263)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:05,572 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:27:05,572 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:27:05,572 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:27:05,572 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:27:05,572 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:27:05,573 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:05,573 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:27:05,573 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:27:05,573 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add-1.i_Iteration31_Loop [2021-10-28 09:27:05,573 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:27:05,573 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:27:05,574 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:27:05,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:27:06,137 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:27:06,138 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:27:06,138 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:06,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:06,139 INFO L229 MonitoredProcess]: Starting monitored process 264 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:06,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (264)] Waiting until timeout for monitored process [2021-10-28 09:27:06,140 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:06,149 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:27:06,149 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:06,149 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:06,149 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:06,150 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:27:06,151 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:27:06,151 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:06,153 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:06,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (264)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:06,187 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:06,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:06,188 INFO L229 MonitoredProcess]: Starting monitored process 265 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:06,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (265)] Waiting until timeout for monitored process [2021-10-28 09:27:06,189 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:06,198 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:27:06,198 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:06,198 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:06,198 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:06,199 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:27:06,201 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:27:06,201 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:06,205 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:06,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (265)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:06,231 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 09:27:06,231 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:06,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:06,232 INFO L229 MonitoredProcess]: Starting monitored process 266 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:06,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (266)] Waiting until timeout for monitored process [2021-10-28 09:27:06,233 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:06,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:27:06,243 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:06,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:06,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:06,243 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:27:06,244 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:27:06,245 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:06,248 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:06,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (266)] Ended with exit code 0 [2021-10-28 09:27:06,274 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:06,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:06,275 INFO L229 MonitoredProcess]: Starting monitored process 267 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:06,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (267)] Waiting until timeout for monitored process [2021-10-28 09:27:06,276 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:06,286 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:27:06,286 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:06,286 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:06,286 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:06,286 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:27:06,290 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:27:06,291 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:06,296 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:06,323 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (267)] Ended with exit code 0 [2021-10-28 09:27:06,323 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 09:27:06,323 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:06,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:06,324 INFO L229 MonitoredProcess]: Starting monitored process 268 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:06,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (268)] Waiting until timeout for monitored process [2021-10-28 09:27:06,325 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:06,335 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:27:06,335 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:06,335 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:06,335 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:06,335 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:27:06,338 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:27:06,338 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:06,342 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:06,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (268)] Ended with exit code 0 [2021-10-28 09:27:06,368 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:06,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:06,369 INFO L229 MonitoredProcess]: Starting monitored process 269 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:06,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (269)] Waiting until timeout for monitored process [2021-10-28 09:27:06,371 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:06,381 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:27:06,381 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:06,381 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:06,381 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:06,381 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:27:06,386 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:27:06,386 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:06,392 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:06,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (269)] Ended with exit code 0 [2021-10-28 09:27:06,418 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 09:27:06,418 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:06,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:06,419 INFO L229 MonitoredProcess]: Starting monitored process 270 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:06,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (270)] Waiting until timeout for monitored process [2021-10-28 09:27:06,420 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:06,430 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:27:06,430 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:06,430 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:06,430 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:06,430 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:27:06,433 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:27:06,433 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:06,438 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:06,464 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (270)] Ended with exit code 0 [2021-10-28 09:27:06,464 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:06,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:06,465 INFO L229 MonitoredProcess]: Starting monitored process 271 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:06,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (271)] Waiting until timeout for monitored process [2021-10-28 09:27:06,466 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:06,476 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:27:06,476 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:06,476 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:06,476 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:06,476 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:27:06,482 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:27:06,482 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:06,490 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:06,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (271)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:06,515 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 09:27:06,516 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:06,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:06,517 INFO L229 MonitoredProcess]: Starting monitored process 272 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:06,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (272)] Waiting until timeout for monitored process [2021-10-28 09:27:06,518 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:06,528 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:06,528 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:27:06,528 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:06,528 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:06,528 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:06,528 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:27:06,530 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:27:06,530 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:06,535 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:06,562 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (272)] Ended with exit code 0 [2021-10-28 09:27:06,563 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:06,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:06,564 INFO L229 MonitoredProcess]: Starting monitored process 273 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:06,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (273)] Waiting until timeout for monitored process [2021-10-28 09:27:06,566 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:06,575 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:06,576 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:27:06,576 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:06,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:06,576 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:06,576 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:27:06,579 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:27:06,580 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:06,588 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:06,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (273)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:06,614 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 09:27:06,614 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:06,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:06,615 INFO L229 MonitoredProcess]: Starting monitored process 274 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:06,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (274)] Waiting until timeout for monitored process [2021-10-28 09:27:06,616 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:06,626 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:06,626 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:27:06,626 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:06,626 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:06,626 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:06,627 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:27:06,629 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:27:06,629 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:06,637 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:06,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (274)] Ended with exit code 0 [2021-10-28 09:27:06,663 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:06,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:06,664 INFO L229 MonitoredProcess]: Starting monitored process 275 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:06,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (275)] Waiting until timeout for monitored process [2021-10-28 09:27:06,665 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:06,675 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:06,675 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:27:06,675 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:06,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:06,675 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:06,675 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:27:06,681 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:27:06,681 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:06,700 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:06,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (275)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:06,727 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 09:27:06,727 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:06,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:06,730 INFO L229 MonitoredProcess]: Starting monitored process 276 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:06,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (276)] Waiting until timeout for monitored process [2021-10-28 09:27:06,731 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:06,741 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:06,741 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:27:06,741 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:06,741 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:06,741 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:06,741 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:27:06,745 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:27:06,745 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:06,755 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:06,780 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (276)] Ended with exit code 0 [2021-10-28 09:27:06,780 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:06,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:06,781 INFO L229 MonitoredProcess]: Starting monitored process 277 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:06,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (277)] Waiting until timeout for monitored process [2021-10-28 09:27:06,782 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:06,794 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:06,794 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:27:06,794 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:06,794 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:06,794 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:06,794 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:27:06,801 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:27:06,801 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:06,821 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:06,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (277)] Ended with exit code 0 [2021-10-28 09:27:06,848 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 09:27:06,848 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:06,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:06,849 INFO L229 MonitoredProcess]: Starting monitored process 278 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:06,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (278)] Waiting until timeout for monitored process [2021-10-28 09:27:06,850 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:06,860 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:06,860 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:27:06,860 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:06,860 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:06,860 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:06,860 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:27:06,862 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:27:06,863 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:06,868 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:06,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (278)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:06,893 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:06,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:06,894 INFO L229 MonitoredProcess]: Starting monitored process 279 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:06,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (279)] Waiting until timeout for monitored process [2021-10-28 09:27:06,906 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:06,915 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:06,915 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:27:06,915 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:06,915 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:06,915 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:06,915 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:27:06,920 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:27:06,920 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:06,928 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:06,953 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (279)] Ended with exit code 0 [2021-10-28 09:27:06,953 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 09:27:06,954 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:06,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:06,955 INFO L229 MonitoredProcess]: Starting monitored process 280 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:06,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (280)] Waiting until timeout for monitored process [2021-10-28 09:27:06,956 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:06,965 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:06,965 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:27:06,966 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:06,966 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:06,966 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:06,966 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:27:06,969 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:27:06,969 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:06,978 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:07,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (280)] Ended with exit code 0 [2021-10-28 09:27:07,004 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:07,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:07,005 INFO L229 MonitoredProcess]: Starting monitored process 281 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:07,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (281)] Waiting until timeout for monitored process [2021-10-28 09:27:07,006 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:07,016 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:07,016 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:27:07,017 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:07,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:07,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:07,017 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:27:07,024 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:27:07,024 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:07,037 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:07,063 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (281)] Ended with exit code 0 [2021-10-28 09:27:07,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:27:07,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 09:27:07,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:27:07,064 INFO L87 Difference]: Start difference. First operand 421 states and 470 transitions. cyclomatic complexity: 52 Second operand has 13 states, 13 states have (on average 8.307692307692308) internal successors, (108), 13 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:27:10,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:27:10,963 INFO L93 Difference]: Finished difference Result 718 states and 778 transitions. [2021-10-28 09:27:10,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-28 09:27:10,964 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 718 states and 778 transitions. [2021-10-28 09:27:10,966 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 62 [2021-10-28 09:27:10,971 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 718 states to 534 states and 578 transitions. [2021-10-28 09:27:10,971 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 534 [2021-10-28 09:27:10,972 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 534 [2021-10-28 09:27:10,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 534 states and 578 transitions. [2021-10-28 09:27:10,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:27:10,973 INFO L681 BuchiCegarLoop]: Abstraction has 534 states and 578 transitions. [2021-10-28 09:27:10,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states and 578 transitions. [2021-10-28 09:27:10,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 425. [2021-10-28 09:27:10,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 425 states have (on average 1.1011764705882352) internal successors, (468), 424 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:27:10,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 468 transitions. [2021-10-28 09:27:10,985 INFO L704 BuchiCegarLoop]: Abstraction has 425 states and 468 transitions. [2021-10-28 09:27:10,986 INFO L587 BuchiCegarLoop]: Abstraction has 425 states and 468 transitions. [2021-10-28 09:27:10,986 INFO L425 BuchiCegarLoop]: ======== Iteration 32============ [2021-10-28 09:27:10,986 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 425 states and 468 transitions. [2021-10-28 09:27:10,988 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 43 [2021-10-28 09:27:10,988 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:27:10,988 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:27:10,989 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:27:10,989 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:27:10,990 INFO L791 eck$LassoCheckResult]: Stem: 37137#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 37131#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~0 := main_#t~nondet4;havoc main_#t~nondet4;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 37122#L51 assume 0 == mp_add_~a3~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 37124#L53 assume 0 == mp_add_~a2~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 37147#L55 assume 0 == mp_add_~a1~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 37148#L51-1 mp_add_~nb~0 := 4; 37155#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 37157#L63 assume !(0 == mp_add_~b2~0 % 256); 37212#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 37539#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 37538#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 37537#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 37536#L76-2 assume !(1 == mp_add_~i~0 % 256); 37535#L77-1 assume !(2 == mp_add_~i~0 % 256); 37534#L78-1 assume !(3 == mp_add_~i~0 % 256); 37533#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 37532#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 37531#L82-2 assume !(1 == mp_add_~i~0 % 256); 37530#L83-1 assume !(2 == mp_add_~i~0 % 256); 37529#L84-1 assume !(3 == mp_add_~i~0 % 256); 37528#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 37527#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 37526#L91-1 assume !(1 == mp_add_~i~0 % 256); 37525#L92-1 assume !(2 == mp_add_~i~0 % 256); 37524#L93-1 assume !(3 == mp_add_~i~0 % 256); 37523#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 37522#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 37521#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 37186#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 37185#L82 assume !(0 == mp_add_~i~0 % 256); 37183#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 37184#L83-1 assume !(2 == mp_add_~i~0 % 256); 37179#L84-1 assume !(3 == mp_add_~i~0 % 256); 37180#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 37175#L87-1 assume !(0 == mp_add_~i~0 % 256); 37176#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 37171#L92-1 assume !(2 == mp_add_~i~0 % 256); 37172#L93-1 assume !(3 == mp_add_~i~0 % 256); 37167#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 37168#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 37164#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 37162#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 37161#L82 assume !(0 == mp_add_~i~0 % 256); 37160#L82-2 assume !(1 == mp_add_~i~0 % 256); 37158#L83-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b2~0 % 256; 37159#L84-1 assume !(3 == mp_add_~i~0 % 256); 37478#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 37477#L87-1 assume !(0 == mp_add_~i~0 % 256); 37476#L91-1 assume !(1 == mp_add_~i~0 % 256); 37475#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 37474#L93-1 assume !(3 == mp_add_~i~0 % 256); 37473#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 37472#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 37471#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 37322#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 37323#L82 assume !(0 == mp_add_~i~0 % 256); 37151#L82-2 assume !(1 == mp_add_~i~0 % 256); 37152#L83-1 assume !(2 == mp_add_~i~0 % 256); 37468#L84-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b3~0 % 256; 37466#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 37465#L87-1 assume !(0 == mp_add_~i~0 % 256); 37464#L91-1 assume !(1 == mp_add_~i~0 % 256); 37463#L92-1 assume !(2 == mp_add_~i~0 % 256); 37460#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 37461#L94-1 [2021-10-28 09:27:10,990 INFO L793 eck$LassoCheckResult]: Loop: 37461#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 37484#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 37328#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 37329#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 37143#L82 assume !(0 == mp_add_~i~0 % 256); 37144#L82-2 assume !(1 == mp_add_~i~0 % 256); 37153#L83-1 assume !(2 == mp_add_~i~0 % 256); 37154#L84-1 assume !(3 == mp_add_~i~0 % 256); 37482#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 37481#L87-1 assume !(0 == mp_add_~i~0 % 256); 37480#L91-1 assume !(1 == mp_add_~i~0 % 256); 37479#L92-1 assume !(2 == mp_add_~i~0 % 256); 37462#L93-1 assume !(3 == mp_add_~i~0 % 256); 37461#L94-1 [2021-10-28 09:27:10,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:27:10,991 INFO L85 PathProgramCache]: Analyzing trace with hash -328205493, now seen corresponding path program 1 times [2021-10-28 09:27:10,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:27:10,991 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895564427] [2021-10-28 09:27:10,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:27:10,992 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:27:11,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:27:11,334 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 27 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:27:11,334 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:27:11,334 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895564427] [2021-10-28 09:27:11,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895564427] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:27:11,334 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416145346] [2021-10-28 09:27:11,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:27:11,335 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:27:11,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:11,338 INFO L229 MonitoredProcess]: Starting monitored process 282 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:27:11,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (282)] Waiting until timeout for monitored process [2021-10-28 09:27:12,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:27:12,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 09:27:12,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:27:13,322 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-10-28 09:27:13,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1416145346] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:27:13,323 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:27:13,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 11 [2021-10-28 09:27:13,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636818133] [2021-10-28 09:27:13,323 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:27:13,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:27:13,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 10 times [2021-10-28 09:27:13,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:27:13,324 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303724710] [2021-10-28 09:27:13,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:27:13,324 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:27:13,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:27:13,332 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:27:13,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:27:13,337 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:27:13,679 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:27:13,679 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:27:13,679 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:27:13,679 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:27:13,679 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:27:13,679 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:13,679 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:27:13,679 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:27:13,679 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add-1.i_Iteration32_Loop [2021-10-28 09:27:13,680 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:27:13,680 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:27:13,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:27:13,697 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:27:14,259 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:27:14,259 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:27:14,259 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:14,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:14,261 INFO L229 MonitoredProcess]: Starting monitored process 283 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:14,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (283)] Waiting until timeout for monitored process [2021-10-28 09:27:14,262 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:27:14,262 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:27:14,281 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:27:14,282 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_mp_add_~partial_sum~0=0, ULTIMATE.start_mp_add_~carry~0=0} Honda state: {ULTIMATE.start_mp_add_~partial_sum~0=0, ULTIMATE.start_mp_add_~carry~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:27:14,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (283)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:14,310 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:14,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:14,311 INFO L229 MonitoredProcess]: Starting monitored process 284 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:14,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (284)] Waiting until timeout for monitored process [2021-10-28 09:27:14,312 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:27:14,312 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:27:14,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (284)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:14,393 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:14,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:14,394 INFO L229 MonitoredProcess]: Starting monitored process 285 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:14,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (285)] Waiting until timeout for monitored process [2021-10-28 09:27:14,395 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:27:14,395 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:27:16,108 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:27:16,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (285)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:16,113 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:27:16,113 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:27:16,113 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:27:16,114 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:27:16,114 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:27:16,114 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:16,114 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:27:16,114 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:27:16,114 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add-1.i_Iteration32_Loop [2021-10-28 09:27:16,114 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:27:16,114 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:27:16,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:27:16,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:27:16,775 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:27:16,775 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:27:16,776 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:16,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:16,777 INFO L229 MonitoredProcess]: Starting monitored process 286 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:16,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (286)] Waiting until timeout for monitored process [2021-10-28 09:27:16,778 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:16,789 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:27:16,789 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:16,789 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:16,789 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:16,789 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:27:16,790 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:27:16,791 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:16,793 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:16,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (286)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:16,821 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:16,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:16,822 INFO L229 MonitoredProcess]: Starting monitored process 287 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:16,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (287)] Waiting until timeout for monitored process [2021-10-28 09:27:16,823 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:16,832 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:27:16,832 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:16,833 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:16,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:16,833 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:27:16,835 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:27:16,835 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:16,839 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:16,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (287)] Ended with exit code 0 [2021-10-28 09:27:16,866 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 09:27:16,866 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:16,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:16,867 INFO L229 MonitoredProcess]: Starting monitored process 288 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:16,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (288)] Waiting until timeout for monitored process [2021-10-28 09:27:16,869 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:16,878 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:27:16,878 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:16,878 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:16,878 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:16,878 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:27:16,880 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:27:16,880 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:16,883 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:16,909 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (288)] Ended with exit code 0 [2021-10-28 09:27:16,909 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:16,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:16,910 INFO L229 MonitoredProcess]: Starting monitored process 289 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:16,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (289)] Waiting until timeout for monitored process [2021-10-28 09:27:16,911 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 [2021-10-28 09:27:16,921 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:27:16,921 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:16,921 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:16,921 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:16,921 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:27:16,924 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:27:16,925 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:16,930 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:16,956 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (289)] Ended with exit code 0 [2021-10-28 09:27:16,956 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 09:27:16,957 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:16,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:16,957 INFO L229 MonitoredProcess]: Starting monitored process 290 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:16,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (290)] Waiting until timeout for monitored process [2021-10-28 09:27:16,959 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 [2021-10-28 09:27:16,968 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:27:16,968 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:16,969 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:16,969 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:16,969 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:27:16,971 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:27:16,971 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:16,975 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:17,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (290)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:17,002 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:17,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:17,003 INFO L229 MonitoredProcess]: Starting monitored process 291 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:17,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (291)] Waiting until timeout for monitored process [2021-10-28 09:27:17,005 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:17,014 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:27:17,014 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:17,014 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:17,015 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:17,015 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:27:17,019 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:27:17,019 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:17,026 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:17,051 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (291)] Ended with exit code 0 [2021-10-28 09:27:17,051 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 09:27:17,051 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:17,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:17,052 INFO L229 MonitoredProcess]: Starting monitored process 292 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:17,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (292)] Waiting until timeout for monitored process [2021-10-28 09:27:17,054 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:17,065 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:27:17,065 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:17,065 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:17,065 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:17,065 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:27:17,068 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:27:17,068 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:17,073 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:17,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (292)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:17,100 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:17,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:17,101 INFO L229 MonitoredProcess]: Starting monitored process 293 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:17,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (293)] Waiting until timeout for monitored process [2021-10-28 09:27:17,102 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:17,112 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:27:17,112 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:17,112 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:17,112 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:17,112 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:27:17,118 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:27:17,118 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:17,126 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:17,153 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (293)] Ended with exit code 0 [2021-10-28 09:27:17,153 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 09:27:17,153 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:17,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:17,154 INFO L229 MonitoredProcess]: Starting monitored process 294 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:17,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (294)] Waiting until timeout for monitored process [2021-10-28 09:27:17,155 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:17,165 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:17,165 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:27:17,165 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:17,165 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:17,165 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:17,165 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:27:17,167 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:27:17,167 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:17,172 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:17,198 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (294)] Ended with exit code 0 [2021-10-28 09:27:17,198 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:17,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:17,206 INFO L229 MonitoredProcess]: Starting monitored process 295 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:17,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (295)] Waiting until timeout for monitored process [2021-10-28 09:27:17,207 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:17,216 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:17,216 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:27:17,217 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:17,217 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:17,217 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:17,217 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:27:17,220 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:27:17,220 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:17,230 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:17,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (295)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:17,256 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 09:27:17,256 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:17,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:17,257 INFO L229 MonitoredProcess]: Starting monitored process 296 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:17,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (296)] Waiting until timeout for monitored process [2021-10-28 09:27:17,259 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:17,269 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:17,269 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:27:17,269 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:17,269 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:17,269 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:17,269 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:27:17,272 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:27:17,272 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:17,279 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:17,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (296)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:17,310 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:17,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:17,313 INFO L229 MonitoredProcess]: Starting monitored process 297 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:17,315 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:17,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (297)] Waiting until timeout for monitored process [2021-10-28 09:27:17,326 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:17,326 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:27:17,326 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:17,326 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:17,326 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:17,326 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:27:17,332 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:27:17,333 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:17,353 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:17,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (297)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:17,391 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 09:27:17,391 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:17,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:17,392 INFO L229 MonitoredProcess]: Starting monitored process 298 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:17,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (298)] Waiting until timeout for monitored process [2021-10-28 09:27:17,393 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:17,403 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:17,403 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:27:17,404 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:17,404 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:17,404 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:17,404 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:27:17,407 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:27:17,407 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:17,418 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:17,444 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (298)] Ended with exit code 0 [2021-10-28 09:27:17,444 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:17,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:17,445 INFO L229 MonitoredProcess]: Starting monitored process 299 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:17,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (299)] Waiting until timeout for monitored process [2021-10-28 09:27:17,447 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:17,457 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:17,457 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:27:17,457 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:17,457 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:17,457 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:17,457 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:27:17,464 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:27:17,464 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:17,484 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:17,510 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (299)] Ended with exit code 0 [2021-10-28 09:27:17,510 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 09:27:17,510 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:17,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:17,511 INFO L229 MonitoredProcess]: Starting monitored process 300 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:17,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (300)] Waiting until timeout for monitored process [2021-10-28 09:27:17,512 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:17,522 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:17,522 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:27:17,522 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:17,522 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:17,522 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:17,523 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:27:17,525 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:27:17,525 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:17,553 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:17,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (300)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:17,597 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:17,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:17,602 INFO L229 MonitoredProcess]: Starting monitored process 301 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:17,610 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:17,622 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:17,622 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:27:17,622 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:17,623 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:17,623 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:17,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (301)] Waiting until timeout for monitored process [2021-10-28 09:27:17,623 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:27:17,627 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:27:17,628 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:17,645 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:17,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (301)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:17,689 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 09:27:17,689 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:17,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:17,690 INFO L229 MonitoredProcess]: Starting monitored process 302 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:17,692 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:17,704 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:17,704 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:27:17,705 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:17,705 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:17,705 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:17,705 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:27:17,709 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:27:17,710 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:17,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (302)] Waiting until timeout for monitored process [2021-10-28 09:27:17,719 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:17,745 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (302)] Ended with exit code 0 [2021-10-28 09:27:17,745 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:17,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:17,746 INFO L229 MonitoredProcess]: Starting monitored process 303 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:17,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (303)] Waiting until timeout for monitored process [2021-10-28 09:27:17,747 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:17,757 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:17,757 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:27:17,758 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:17,758 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:17,758 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:17,758 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:27:17,765 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:27:17,765 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:17,778 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:17,804 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (303)] Ended with exit code 0 [2021-10-28 09:27:17,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:27:17,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 09:27:17,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:27:17,805 INFO L87 Difference]: Start difference. First operand 425 states and 468 transitions. cyclomatic complexity: 46 Second operand has 11 states, 11 states have (on average 8.727272727272727) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:27:22,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:27:22,182 INFO L93 Difference]: Finished difference Result 679 states and 736 transitions. [2021-10-28 09:27:22,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-28 09:27:22,184 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 679 states and 736 transitions. [2021-10-28 09:27:22,186 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 75 [2021-10-28 09:27:22,190 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 679 states to 528 states and 572 transitions. [2021-10-28 09:27:22,190 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 528 [2021-10-28 09:27:22,190 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 528 [2021-10-28 09:27:22,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 528 states and 572 transitions. [2021-10-28 09:27:22,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:27:22,191 INFO L681 BuchiCegarLoop]: Abstraction has 528 states and 572 transitions. [2021-10-28 09:27:22,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states and 572 transitions. [2021-10-28 09:27:22,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 446. [2021-10-28 09:27:22,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 446 states have (on average 1.0896860986547086) internal successors, (486), 445 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:27:22,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 486 transitions. [2021-10-28 09:27:22,204 INFO L704 BuchiCegarLoop]: Abstraction has 446 states and 486 transitions. [2021-10-28 09:27:22,204 INFO L587 BuchiCegarLoop]: Abstraction has 446 states and 486 transitions. [2021-10-28 09:27:22,204 INFO L425 BuchiCegarLoop]: ======== Iteration 33============ [2021-10-28 09:27:22,204 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 446 states and 486 transitions. [2021-10-28 09:27:22,207 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 43 [2021-10-28 09:27:22,207 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:27:22,207 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:27:22,208 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:27:22,208 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:27:22,209 INFO L791 eck$LassoCheckResult]: Stem: 38476#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 38468#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~0 := main_#t~nondet4;havoc main_#t~nondet4;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 38459#L51 assume 0 == mp_add_~a3~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 38461#L53 assume 0 == mp_add_~a2~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 38485#L55 assume 0 == mp_add_~a1~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 38486#L51-1 mp_add_~nb~0 := 4; 38496#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 38494#L63 assume 0 == mp_add_~b2~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 38495#L65 assume 0 == mp_add_~b1~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 38549#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 38548#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 38547#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 38546#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 38545#L76-2 assume !(1 == mp_add_~i~0 % 256); 38544#L77-1 assume !(2 == mp_add_~i~0 % 256); 38543#L78-1 assume !(3 == mp_add_~i~0 % 256); 38542#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 38541#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 38540#L82-2 assume !(1 == mp_add_~i~0 % 256); 38539#L83-1 assume !(2 == mp_add_~i~0 % 256); 38538#L84-1 assume !(3 == mp_add_~i~0 % 256); 38537#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 38536#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 38535#L91-1 assume !(1 == mp_add_~i~0 % 256); 38534#L92-1 assume !(2 == mp_add_~i~0 % 256); 38533#L93-1 assume !(3 == mp_add_~i~0 % 256); 38532#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 38531#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 38529#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 38530#L76 assume !(0 == mp_add_~i~0 % 256); 38554#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 38550#L77-1 assume !(2 == mp_add_~i~0 % 256); 38551#L78-1 assume !(3 == mp_add_~i~0 % 256); 38589#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 38590#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 38897#L87-1 assume !(0 == mp_add_~i~0 % 256); 38896#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 38895#L92-1 assume !(2 == mp_add_~i~0 % 256); 38894#L93-1 assume !(3 == mp_add_~i~0 % 256); 38893#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 38892#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 38891#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 38890#L76 assume !(0 == mp_add_~i~0 % 256); 38889#L76-2 assume !(1 == mp_add_~i~0 % 256); 38888#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 38887#L78-1 assume !(3 == mp_add_~i~0 % 256); 38886#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 38711#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 38885#L87-1 assume !(0 == mp_add_~i~0 % 256); 38884#L91-1 assume !(1 == mp_add_~i~0 % 256); 38883#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 38882#L93-1 assume !(3 == mp_add_~i~0 % 256); 38881#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 38880#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 38879#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 38878#L76 assume !(0 == mp_add_~i~0 % 256); 38877#L76-2 assume !(1 == mp_add_~i~0 % 256); 38876#L77-1 assume !(2 == mp_add_~i~0 % 256); 38875#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 38490#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 38480#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 38469#L87-1 assume !(0 == mp_add_~i~0 % 256); 38456#L91-1 assume !(1 == mp_add_~i~0 % 256); 38457#L92-1 assume !(2 == mp_add_~i~0 % 256); 38458#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 38472#L94-1 [2021-10-28 09:27:22,209 INFO L793 eck$LassoCheckResult]: Loop: 38472#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 38466#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 38467#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 38488#L76 assume !(0 == mp_add_~i~0 % 256); 38477#L76-2 assume !(1 == mp_add_~i~0 % 256); 38478#L77-1 assume !(2 == mp_add_~i~0 % 256); 38479#L78-1 assume !(3 == mp_add_~i~0 % 256); 38481#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 38901#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 38900#L87-1 assume !(0 == mp_add_~i~0 % 256); 38899#L91-1 assume !(1 == mp_add_~i~0 % 256); 38898#L92-1 assume !(2 == mp_add_~i~0 % 256); 38475#L93-1 assume !(3 == mp_add_~i~0 % 256); 38472#L94-1 [2021-10-28 09:27:22,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:27:22,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1221245325, now seen corresponding path program 1 times [2021-10-28 09:27:22,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:27:22,210 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662872451] [2021-10-28 09:27:22,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:27:22,211 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:27:22,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:27:22,817 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 24 proven. 38 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-28 09:27:22,817 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:27:22,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662872451] [2021-10-28 09:27:22,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662872451] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:27:22,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [627854426] [2021-10-28 09:27:22,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:27:22,818 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:27:22,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:22,819 INFO L229 MonitoredProcess]: Starting monitored process 304 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:27:22,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (304)] Waiting until timeout for monitored process [2021-10-28 09:27:23,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:27:23,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 09:27:23,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:27:26,218 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 18 proven. 12 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-10-28 09:27:26,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [627854426] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:27:26,218 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:27:26,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7] total 15 [2021-10-28 09:27:26,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071241453] [2021-10-28 09:27:26,219 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:27:26,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:27:26,220 INFO L85 PathProgramCache]: Analyzing trace with hash 672830572, now seen corresponding path program 5 times [2021-10-28 09:27:26,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:27:26,220 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466936999] [2021-10-28 09:27:26,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:27:26,220 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:27:26,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:27:26,229 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:27:26,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:27:26,234 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:27:26,523 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:27:26,524 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:27:26,524 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:27:26,524 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:27:26,524 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:27:26,524 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:26,524 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:27:26,525 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:27:26,525 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add-1.i_Iteration33_Loop [2021-10-28 09:27:26,525 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:27:26,525 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:27:26,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:27:26,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:27:27,129 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:27:27,129 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:27:27,129 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:27,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:27,131 INFO L229 MonitoredProcess]: Starting monitored process 305 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:27,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (305)] Waiting until timeout for monitored process [2021-10-28 09:27:27,132 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:27:27,132 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:27:27,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (305)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:27,215 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:27,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:27,216 INFO L229 MonitoredProcess]: Starting monitored process 306 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:27,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (306)] Waiting until timeout for monitored process [2021-10-28 09:27:27,218 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:27:27,218 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:27:28,697 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:27:28,701 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (306)] Ended with exit code 0 [2021-10-28 09:27:28,701 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:27:28,702 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:27:28,702 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:27:28,702 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:27:28,702 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:27:28,702 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:28,702 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:27:28,702 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:27:28,702 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add-1.i_Iteration33_Loop [2021-10-28 09:27:28,702 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:27:28,702 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:27:28,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:27:28,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:27:29,311 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:27:29,312 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:27:29,312 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:29,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:29,313 INFO L229 MonitoredProcess]: Starting monitored process 307 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:29,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (307)] Waiting until timeout for monitored process [2021-10-28 09:27:29,315 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:29,325 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:27:29,326 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:29,326 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:29,326 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:29,326 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:27:29,329 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:27:29,329 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:29,333 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:29,360 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (307)] Ended with exit code 0 [2021-10-28 09:27:29,360 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:29,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:29,361 INFO L229 MonitoredProcess]: Starting monitored process 308 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:29,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (308)] Waiting until timeout for monitored process [2021-10-28 09:27:29,362 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:29,371 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:27:29,371 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:29,372 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:29,372 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:29,372 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:27:29,373 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:27:29,373 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:29,376 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:29,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (308)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:29,402 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 09:27:29,402 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:29,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:29,404 INFO L229 MonitoredProcess]: Starting monitored process 309 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:29,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (309)] Waiting until timeout for monitored process [2021-10-28 09:27:29,405 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:29,414 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:27:29,414 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:29,415 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:29,415 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:29,415 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:27:29,418 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:27:29,418 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:29,423 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:29,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (309)] Ended with exit code 0 [2021-10-28 09:27:29,450 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:29,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:29,454 INFO L229 MonitoredProcess]: Starting monitored process 310 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:29,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (310)] Waiting until timeout for monitored process [2021-10-28 09:27:29,456 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:29,467 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:27:29,468 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:29,468 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:29,468 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:29,468 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:27:29,470 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:27:29,470 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:29,474 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:29,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (310)] Ended with exit code 0 [2021-10-28 09:27:29,500 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 09:27:29,500 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:29,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:29,501 INFO L229 MonitoredProcess]: Starting monitored process 311 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:29,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (311)] Waiting until timeout for monitored process [2021-10-28 09:27:29,502 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:29,512 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:27:29,512 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:29,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:29,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:29,512 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:27:29,516 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:27:29,517 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:29,523 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:29,550 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (311)] Ended with exit code 0 [2021-10-28 09:27:29,550 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:29,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:29,551 INFO L229 MonitoredProcess]: Starting monitored process 312 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:29,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (312)] Waiting until timeout for monitored process [2021-10-28 09:27:29,552 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:29,561 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:27:29,562 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:29,562 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:29,562 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:29,562 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:27:29,564 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:27:29,564 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:29,568 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:29,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (312)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:29,595 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 09:27:29,595 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:29,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:29,596 INFO L229 MonitoredProcess]: Starting monitored process 313 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:29,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (313)] Waiting until timeout for monitored process [2021-10-28 09:27:29,597 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:29,607 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:27:29,607 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:29,607 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:29,608 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:29,608 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:27:29,613 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:27:29,613 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:29,621 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:29,646 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (313)] Ended with exit code 0 [2021-10-28 09:27:29,646 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:29,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:29,647 INFO L229 MonitoredProcess]: Starting monitored process 314 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:29,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (314)] Waiting until timeout for monitored process [2021-10-28 09:27:29,649 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:29,659 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:27:29,659 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:29,659 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:29,659 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:29,659 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:27:29,662 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:27:29,662 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:29,667 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:29,692 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (314)] Ended with exit code 0 [2021-10-28 09:27:29,692 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 09:27:29,692 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:29,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:29,699 INFO L229 MonitoredProcess]: Starting monitored process 315 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:29,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (315)] Waiting until timeout for monitored process [2021-10-28 09:27:29,701 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:29,712 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:29,712 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:27:29,712 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:29,712 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:29,712 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:29,713 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:27:29,716 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:27:29,716 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:29,726 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:29,752 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (315)] Ended with exit code 0 [2021-10-28 09:27:29,752 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:29,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:29,753 INFO L229 MonitoredProcess]: Starting monitored process 316 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:29,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (316)] Waiting until timeout for monitored process [2021-10-28 09:27:29,755 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:29,764 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:29,764 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:27:29,764 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:29,764 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:29,764 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:29,765 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:27:29,766 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:27:29,767 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:29,772 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:29,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (316)] Ended with exit code 0 [2021-10-28 09:27:29,798 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 09:27:29,798 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:29,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:29,799 INFO L229 MonitoredProcess]: Starting monitored process 317 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:29,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (317)] Waiting until timeout for monitored process [2021-10-28 09:27:29,800 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:29,810 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:29,810 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:27:29,810 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:29,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:29,811 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:29,811 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:27:29,815 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:27:29,816 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:29,830 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:29,855 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (317)] Ended with exit code 0 [2021-10-28 09:27:29,856 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:29,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:29,857 INFO L229 MonitoredProcess]: Starting monitored process 318 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:29,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (318)] Waiting until timeout for monitored process [2021-10-28 09:27:29,858 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:29,868 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:29,868 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:27:29,868 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:29,868 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:29,868 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:29,868 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:27:29,871 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:27:29,871 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:29,878 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:29,905 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (318)] Ended with exit code 0 [2021-10-28 09:27:29,905 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 09:27:29,905 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:29,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:29,906 INFO L229 MonitoredProcess]: Starting monitored process 319 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:29,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (319)] Waiting until timeout for monitored process [2021-10-28 09:27:29,907 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:29,918 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:29,918 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:27:29,918 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:29,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:29,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:29,918 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:27:29,924 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:27:29,925 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:29,945 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:29,971 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (319)] Ended with exit code 0 [2021-10-28 09:27:29,971 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:29,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:29,972 INFO L229 MonitoredProcess]: Starting monitored process 320 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:29,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (320)] Waiting until timeout for monitored process [2021-10-28 09:27:29,974 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:29,983 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:29,984 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:27:29,984 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:29,984 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:29,984 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:29,984 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:27:29,987 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:27:29,988 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:29,999 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:30,025 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (320)] Ended with exit code 0 [2021-10-28 09:27:30,025 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 09:27:30,026 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:30,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:30,027 INFO L229 MonitoredProcess]: Starting monitored process 321 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:30,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (321)] Waiting until timeout for monitored process [2021-10-28 09:27:30,034 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:30,044 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:30,044 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:27:30,044 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:30,044 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:30,044 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:30,044 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:27:30,049 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:27:30,049 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:30,058 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:30,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (321)] Ended with exit code 0 [2021-10-28 09:27:30,083 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:30,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:30,084 INFO L229 MonitoredProcess]: Starting monitored process 322 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:30,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (322)] Waiting until timeout for monitored process [2021-10-28 09:27:30,086 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 [2021-10-28 09:27:30,095 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:30,095 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:27:30,095 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:30,095 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:30,095 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:30,096 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:27:30,098 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:27:30,099 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:30,105 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:30,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (322)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:30,131 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 09:27:30,131 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:30,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:30,132 INFO L229 MonitoredProcess]: Starting monitored process 323 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:30,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (323)] Waiting until timeout for monitored process [2021-10-28 09:27:30,133 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:30,143 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:30,143 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:27:30,143 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:30,144 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:30,144 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:30,144 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:27:30,150 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:27:30,151 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:30,164 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:30,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (323)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:30,191 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:30,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:30,192 INFO L229 MonitoredProcess]: Starting monitored process 324 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:30,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (324)] Waiting until timeout for monitored process [2021-10-28 09:27:30,194 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:30,203 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:30,204 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:27:30,204 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:30,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:30,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:30,204 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:27:30,207 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:27:30,207 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:30,216 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:30,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (324)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:30,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:27:30,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 09:27:30,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-10-28 09:27:30,243 INFO L87 Difference]: Start difference. First operand 446 states and 486 transitions. cyclomatic complexity: 43 Second operand has 15 states, 15 states have (on average 6.0) internal successors, (90), 15 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:27:39,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:27:39,476 INFO L93 Difference]: Finished difference Result 394 states and 423 transitions. [2021-10-28 09:27:39,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-28 09:27:39,477 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 394 states and 423 transitions. [2021-10-28 09:27:39,478 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 52 [2021-10-28 09:27:39,481 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 394 states to 354 states and 381 transitions. [2021-10-28 09:27:39,481 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 354 [2021-10-28 09:27:39,481 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 354 [2021-10-28 09:27:39,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 354 states and 381 transitions. [2021-10-28 09:27:39,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:27:39,482 INFO L681 BuchiCegarLoop]: Abstraction has 354 states and 381 transitions. [2021-10-28 09:27:39,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states and 381 transitions. [2021-10-28 09:27:39,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 221. [2021-10-28 09:27:39,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 221 states have (on average 1.081447963800905) internal successors, (239), 220 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:27:39,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 239 transitions. [2021-10-28 09:27:39,489 INFO L704 BuchiCegarLoop]: Abstraction has 221 states and 239 transitions. [2021-10-28 09:27:39,489 INFO L587 BuchiCegarLoop]: Abstraction has 221 states and 239 transitions. [2021-10-28 09:27:39,489 INFO L425 BuchiCegarLoop]: ======== Iteration 34============ [2021-10-28 09:27:39,490 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 221 states and 239 transitions. [2021-10-28 09:27:39,491 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-10-28 09:27:39,491 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:27:39,491 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:27:39,492 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:27:39,492 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:27:39,492 INFO L791 eck$LassoCheckResult]: Stem: 39560#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 39552#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~0 := main_#t~nondet4;havoc main_#t~nondet4;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 39543#L51 assume 0 == mp_add_~a3~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 39545#L53 assume 0 == mp_add_~a2~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 39572#L55 assume 0 == mp_add_~a1~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 39554#L51-1 mp_add_~nb~0 := 4; 39555#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 39548#L63 assume 0 == mp_add_~b2~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 39549#L65 assume 0 == mp_add_~b1~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 39557#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 39558#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 39581#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 39582#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 39561#L76-2 assume !(1 == mp_add_~i~0 % 256); 39562#L77-1 assume !(2 == mp_add_~i~0 % 256); 39567#L78-1 assume !(3 == mp_add_~i~0 % 256); 39568#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 39755#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 39754#L82-2 assume !(1 == mp_add_~i~0 % 256); 39753#L83-1 assume !(2 == mp_add_~i~0 % 256); 39752#L84-1 assume !(3 == mp_add_~i~0 % 256); 39751#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 39750#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 39749#L91-1 assume !(1 == mp_add_~i~0 % 256); 39748#L92-1 assume !(2 == mp_add_~i~0 % 256); 39747#L93-1 assume !(3 == mp_add_~i~0 % 256); 39746#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 39745#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 39744#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 39743#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 39742#L82 assume !(0 == mp_add_~i~0 % 256); 39741#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 39740#L83-1 assume !(2 == mp_add_~i~0 % 256); 39739#L84-1 assume !(3 == mp_add_~i~0 % 256); 39738#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 39737#L87-1 assume !(0 == mp_add_~i~0 % 256); 39736#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 39735#L92-1 assume !(2 == mp_add_~i~0 % 256); 39734#L93-1 assume !(3 == mp_add_~i~0 % 256); 39733#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 39732#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 39731#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 39730#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 39729#L82 assume !(0 == mp_add_~i~0 % 256); 39728#L82-2 assume !(1 == mp_add_~i~0 % 256); 39727#L83-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b2~0 % 256; 39726#L84-1 assume !(3 == mp_add_~i~0 % 256); 39725#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 39724#L87-1 assume !(0 == mp_add_~i~0 % 256); 39723#L91-1 assume !(1 == mp_add_~i~0 % 256); 39722#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 39721#L93-1 assume !(3 == mp_add_~i~0 % 256); 39720#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 39719#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 39717#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 39714#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 39712#L82 assume !(0 == mp_add_~i~0 % 256); 39710#L82-2 assume !(1 == mp_add_~i~0 % 256); 39708#L83-1 assume !(2 == mp_add_~i~0 % 256); 39705#L84-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b3~0 % 256; 39706#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 39553#L87-1 assume !(0 == mp_add_~i~0 % 256); 39542#L91-1 assume !(1 == mp_add_~i~0 % 256); 39540#L92-1 assume !(2 == mp_add_~i~0 % 256); 39541#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 39556#L94-1 [2021-10-28 09:27:39,493 INFO L793 eck$LassoCheckResult]: Loop: 39556#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 39550#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 39551#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 39575#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 39569#L82 assume !(0 == mp_add_~i~0 % 256); 39570#L82-2 assume !(1 == mp_add_~i~0 % 256); 39574#L83-1 assume !(2 == mp_add_~i~0 % 256); 39571#L84-1 assume !(3 == mp_add_~i~0 % 256); 39565#L81 assume !(mp_add_~partial_sum~0 % 65536 > 254); 39566#L87-1 assume !(0 == mp_add_~i~0 % 256); 39760#L91-1 assume !(1 == mp_add_~i~0 % 256); 39759#L92-1 assume !(2 == mp_add_~i~0 % 256); 39559#L93-1 assume !(3 == mp_add_~i~0 % 256); 39556#L94-1 [2021-10-28 09:27:39,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:27:39,493 INFO L85 PathProgramCache]: Analyzing trace with hash 630669467, now seen corresponding path program 1 times [2021-10-28 09:27:39,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:27:39,494 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558205453] [2021-10-28 09:27:39,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:27:39,494 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:27:39,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:27:40,208 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 21 proven. 41 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-28 09:27:40,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:27:40,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558205453] [2021-10-28 09:27:40,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558205453] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:27:40,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [809908976] [2021-10-28 09:27:40,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:27:40,210 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:27:40,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:40,214 INFO L229 MonitoredProcess]: Starting monitored process 325 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:27:40,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (325)] Waiting until timeout for monitored process [2021-10-28 09:27:41,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:27:41,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 09:27:41,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:27:42,321 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 43 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-28 09:27:42,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [809908976] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:27:42,321 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:27:42,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7] total 15 [2021-10-28 09:27:42,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498771492] [2021-10-28 09:27:42,322 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:27:42,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:27:42,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 11 times [2021-10-28 09:27:42,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:27:42,323 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131394511] [2021-10-28 09:27:42,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:27:42,323 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:27:42,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:27:42,343 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:27:42,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:27:42,348 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:27:42,640 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:27:42,640 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:27:42,640 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:27:42,640 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:27:42,640 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:27:42,640 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:42,640 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:27:42,640 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:27:42,640 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add-1.i_Iteration34_Loop [2021-10-28 09:27:42,641 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:27:42,641 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:27:42,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:27:42,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:27:43,206 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:27:43,206 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:27:43,206 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:43,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:43,208 INFO L229 MonitoredProcess]: Starting monitored process 326 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:43,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (326)] Waiting until timeout for monitored process [2021-10-28 09:27:43,209 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:27:43,209 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:27:43,228 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:27:43,228 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_mp_add_~partial_sum~0=0, ULTIMATE.start_mp_add_~carry~0=0} Honda state: {ULTIMATE.start_mp_add_~partial_sum~0=0, ULTIMATE.start_mp_add_~carry~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:27:43,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (326)] Ended with exit code 0 [2021-10-28 09:27:43,255 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:43,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:43,256 INFO L229 MonitoredProcess]: Starting monitored process 327 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:43,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (327)] Waiting until timeout for monitored process [2021-10-28 09:27:43,258 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:27:43,258 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:27:43,323 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (327)] Ended with exit code 0 [2021-10-28 09:27:43,323 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:43,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:43,324 INFO L229 MonitoredProcess]: Starting monitored process 328 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:43,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (328)] Waiting until timeout for monitored process [2021-10-28 09:27:43,325 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:27:43,325 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:27:44,874 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:27:44,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (328)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:44,879 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:27:44,879 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:27:44,879 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:27:44,879 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:27:44,879 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:27:44,879 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:44,879 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:27:44,879 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:27:44,880 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add-1.i_Iteration34_Loop [2021-10-28 09:27:44,880 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:27:44,880 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:27:44,880 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:27:44,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:27:45,474 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:27:45,474 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:27:45,474 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:45,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:45,490 INFO L229 MonitoredProcess]: Starting monitored process 329 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:45,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (329)] Waiting until timeout for monitored process [2021-10-28 09:27:45,492 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:45,502 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:27:45,502 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:45,502 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:45,502 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:45,502 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:27:45,505 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:27:45,505 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:45,509 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:45,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (329)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:45,540 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:45,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:45,541 INFO L229 MonitoredProcess]: Starting monitored process 330 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:45,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (330)] Waiting until timeout for monitored process [2021-10-28 09:27:45,542 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:45,551 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:27:45,552 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:45,552 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:45,552 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:45,552 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:27:45,553 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:27:45,553 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:45,556 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:45,583 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (330)] Ended with exit code 0 [2021-10-28 09:27:45,584 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 09:27:45,584 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:45,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:45,589 INFO L229 MonitoredProcess]: Starting monitored process 331 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:45,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (331)] Waiting until timeout for monitored process [2021-10-28 09:27:45,591 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:45,600 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:27:45,601 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:45,601 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:45,601 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:45,601 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:27:45,604 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:27:45,604 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:45,609 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:45,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (331)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:45,635 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:45,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:45,636 INFO L229 MonitoredProcess]: Starting monitored process 332 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:45,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (332)] Waiting until timeout for monitored process [2021-10-28 09:27:45,638 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:45,647 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:27:45,647 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:45,647 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:45,647 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:45,647 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:27:45,649 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:27:45,649 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:45,652 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:45,678 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (332)] Ended with exit code 0 [2021-10-28 09:27:45,678 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 09:27:45,678 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:45,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:45,679 INFO L229 MonitoredProcess]: Starting monitored process 333 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:45,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (333)] Waiting until timeout for monitored process [2021-10-28 09:27:45,681 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:45,693 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:27:45,693 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:45,693 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:45,693 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:45,694 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:27:45,698 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:27:45,698 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:45,704 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:45,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (333)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:45,730 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:45,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:45,731 INFO L229 MonitoredProcess]: Starting monitored process 334 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:45,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (334)] Waiting until timeout for monitored process [2021-10-28 09:27:45,733 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:45,742 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:27:45,742 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:45,743 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:45,743 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:45,743 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:27:45,746 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:27:45,746 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:45,767 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:45,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (334)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:45,814 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 09:27:45,814 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:45,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:45,818 INFO L229 MonitoredProcess]: Starting monitored process 335 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:45,852 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:45,865 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:27:45,865 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:45,866 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:45,866 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:45,866 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:27:45,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (335)] Waiting until timeout for monitored process [2021-10-28 09:27:45,873 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:27:45,873 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:45,887 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:45,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (335)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:45,929 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:45,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:45,930 INFO L229 MonitoredProcess]: Starting monitored process 336 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:45,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (336)] Waiting until timeout for monitored process [2021-10-28 09:27:45,931 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:45,941 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:27:45,941 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:45,941 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:45,941 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:45,941 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:27:45,944 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:27:45,944 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:45,949 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:45,974 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (336)] Ended with exit code 0 [2021-10-28 09:27:45,974 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 09:27:45,974 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:45,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:45,975 INFO L229 MonitoredProcess]: Starting monitored process 337 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:45,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (337)] Waiting until timeout for monitored process [2021-10-28 09:27:45,976 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:45,986 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:45,986 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:27:45,986 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:45,986 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:45,986 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:45,986 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:27:45,990 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:27:45,990 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:45,999 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:46,024 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (337)] Ended with exit code 0 [2021-10-28 09:27:46,025 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:46,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:46,026 INFO L229 MonitoredProcess]: Starting monitored process 338 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:46,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (338)] Waiting until timeout for monitored process [2021-10-28 09:27:46,027 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 [2021-10-28 09:27:46,036 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:46,036 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:27:46,037 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:46,037 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:46,037 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:46,037 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:27:46,039 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:27:46,039 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:46,044 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:46,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (338)] Ended with exit code 0 [2021-10-28 09:27:46,069 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 09:27:46,069 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:46,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:46,070 INFO L229 MonitoredProcess]: Starting monitored process 339 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:46,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (339)] Waiting until timeout for monitored process [2021-10-28 09:27:46,071 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:46,081 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:46,081 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:27:46,081 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:46,081 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:46,081 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:46,081 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:27:46,086 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:27:46,086 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:46,101 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:46,126 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (339)] Ended with exit code 0 [2021-10-28 09:27:46,127 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:46,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:46,127 INFO L229 MonitoredProcess]: Starting monitored process 340 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:46,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (340)] Waiting until timeout for monitored process [2021-10-28 09:27:46,129 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:46,138 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:46,138 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:27:46,139 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:46,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:46,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:46,139 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:27:46,141 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:27:46,141 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:46,149 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:46,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (340)] Ended with exit code 0 [2021-10-28 09:27:46,174 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 09:27:46,175 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:46,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:46,175 INFO L229 MonitoredProcess]: Starting monitored process 341 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:46,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (341)] Waiting until timeout for monitored process [2021-10-28 09:27:46,177 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:46,187 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:46,187 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:27:46,187 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:46,187 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:46,187 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:46,187 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:27:46,196 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:27:46,196 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:46,232 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:46,277 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (341)] Ended with exit code 0 [2021-10-28 09:27:46,278 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:46,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:46,279 INFO L229 MonitoredProcess]: Starting monitored process 342 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:46,281 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:46,295 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:46,295 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:27:46,295 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:46,295 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:46,295 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:46,295 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:27:46,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (342)] Waiting until timeout for monitored process [2021-10-28 09:27:46,300 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:27:46,301 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:46,332 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:46,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (342)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:46,376 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 09:27:46,376 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:46,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:46,378 INFO L229 MonitoredProcess]: Starting monitored process 343 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:46,385 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:46,398 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:46,398 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:27:46,398 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:46,398 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:46,398 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:46,398 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:27:46,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (343)] Waiting until timeout for monitored process [2021-10-28 09:27:46,404 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:27:46,405 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:46,432 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:46,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (343)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:46,476 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:46,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:46,478 INFO L229 MonitoredProcess]: Starting monitored process 344 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:46,481 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:46,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (344)] Waiting until timeout for monitored process [2021-10-28 09:27:46,494 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:46,494 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:27:46,494 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:46,495 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:46,495 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:46,495 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:27:46,498 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:27:46,498 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:46,511 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:46,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (344)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:46,557 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 09:27:46,557 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:46,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:46,558 INFO L229 MonitoredProcess]: Starting monitored process 345 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:46,560 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:46,573 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:46,573 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:27:46,573 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:46,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:46,573 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:46,574 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:27:46,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (345)] Waiting until timeout for monitored process [2021-10-28 09:27:46,582 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:27:46,582 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:46,622 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:46,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (345)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:46,666 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:27:46,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:27:46,668 INFO L229 MonitoredProcess]: Starting monitored process 346 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:27:46,674 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:27:46,687 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:27:46,688 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:27:46,688 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:27:46,688 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:27:46,688 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:27:46,688 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:27:46,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (346)] Waiting until timeout for monitored process [2021-10-28 09:27:46,693 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:27:46,693 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:27:46,721 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:27:46,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (346)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:46,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:27:46,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 09:27:46,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-10-28 09:27:46,765 INFO L87 Difference]: Start difference. First operand 221 states and 239 transitions. cyclomatic complexity: 19 Second operand has 15 states, 15 states have (on average 6.2) internal successors, (93), 15 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:27:48,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:27:48,845 INFO L93 Difference]: Finished difference Result 261 states and 274 transitions. [2021-10-28 09:27:48,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 09:27:48,846 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 261 states and 274 transitions. [2021-10-28 09:27:48,848 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:27:48,848 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 261 states to 0 states and 0 transitions. [2021-10-28 09:27:48,849 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 09:27:48,849 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 09:27:48,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 09:27:48,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:27:48,850 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:27:48,850 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:27:48,850 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:27:48,850 INFO L425 BuchiCegarLoop]: ======== Iteration 35============ [2021-10-28 09:27:48,850 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:27:48,851 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:27:48,851 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 09:27:48,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:27:48 BoogieIcfgContainer [2021-10-28 09:27:48,861 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:27:48,862 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:27:48,863 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:27:48,863 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:27:48,864 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:24:00" (3/4) ... [2021-10-28 09:27:48,869 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:27:48,869 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:27:48,871 INFO L168 Benchmark]: Toolchain (without parser) took 229415.61 ms. Allocated memory was 107.0 MB in the beginning and 373.3 MB in the end (delta: 266.3 MB). Free memory was 71.6 MB in the beginning and 57.7 MB in the end (delta: 13.8 MB). Peak memory consumption was 278.9 MB. Max. memory is 16.1 GB. [2021-10-28 09:27:48,872 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 83.9 MB. Free memory was 62.1 MB in the beginning and 62.1 MB in the end (delta: 25.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:27:48,872 INFO L168 Benchmark]: CACSL2BoogieTranslator took 396.83 ms. Allocated memory is still 107.0 MB. Free memory was 71.6 MB in the beginning and 80.4 MB in the end (delta: -8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:27:48,873 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.93 ms. Allocated memory is still 107.0 MB. Free memory was 80.4 MB in the beginning and 78.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:27:48,873 INFO L168 Benchmark]: Boogie Preprocessor took 37.09 ms. Allocated memory is still 107.0 MB. Free memory was 78.3 MB in the beginning and 77.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:27:48,880 INFO L168 Benchmark]: RCFGBuilder took 479.49 ms. Allocated memory is still 107.0 MB. Free memory was 77.3 MB in the beginning and 64.1 MB in the end (delta: 13.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-28 09:27:48,881 INFO L168 Benchmark]: BuchiAutomizer took 228435.28 ms. Allocated memory was 107.0 MB in the beginning and 373.3 MB in the end (delta: 266.3 MB). Free memory was 64.1 MB in the beginning and 57.9 MB in the end (delta: 6.2 MB). Peak memory consumption was 273.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:27:48,881 INFO L168 Benchmark]: Witness Printer took 7.25 ms. Allocated memory is still 373.3 MB. Free memory was 57.9 MB in the beginning and 57.7 MB in the end (delta: 200.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:27:48,884 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 83.9 MB. Free memory was 62.1 MB in the beginning and 62.1 MB in the end (delta: 25.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 396.83 ms. Allocated memory is still 107.0 MB. Free memory was 71.6 MB in the beginning and 80.4 MB in the end (delta: -8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.93 ms. Allocated memory is still 107.0 MB. Free memory was 80.4 MB in the beginning and 78.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.09 ms. Allocated memory is still 107.0 MB. Free memory was 78.3 MB in the beginning and 77.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 479.49 ms. Allocated memory is still 107.0 MB. Free memory was 77.3 MB in the beginning and 64.1 MB in the end (delta: 13.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 228435.28 ms. Allocated memory was 107.0 MB in the beginning and 373.3 MB in the end (delta: 266.3 MB). Free memory was 64.1 MB in the beginning and 57.9 MB in the end (delta: 6.2 MB). Peak memory consumption was 273.3 MB. Max. memory is 16.1 GB. * Witness Printer took 7.25 ms. Allocated memory is still 373.3 MB. Free memory was 57.9 MB in the beginning and 57.7 MB in the end (delta: 200.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 34 terminating modules (34 trivial, 0 deterministic, 0 nondeterministic). 34 modules have a trivial ranking function, the largest among these consists of 20 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 228.3s and 35 iterations. TraceHistogramMax:7. Analysis of lassos took 180.6s. Construction of modules took 30.7s. Büchi inclusion checks took 15.4s. Highest rank in rank-based complementation 0. Minimization of det autom 34. Minimization of nondet autom 0. Automata minimization 0.5s AutomataMinimizationTime, 33 MinimizatonAttempts, 8328 StatesRemovedByMinimization, 33 NontrivialMinimizations. Non-live state removal took 0.4s Buchi closure took 0.0s. Biggest automaton had 1333 states and ocurred in iteration 16. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1537 SDtfs, 7437 SDslu, 4017 SDs, 0 SdLazy, 14693 SolverSat, 941 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 30.7s Time LassoAnalysisResults: nont0 unkn0 SFLI17 SFLT0 conc3 concLT0 SILN0 SILU13 SILI1 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital58 mio100 ax100 hnf100 lsp81 ukn100 mio100 lsp100 div393 bol100 ite100 ukn100 eq146 hnf47 smp69 dnf100 smp100 tf102 neg98 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 3 Time: 58ms VariablesStem: 0 VariablesLoop: 12 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 16 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 25.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 09:27:48,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (325)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:49,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (304)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:49,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (282)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:49,546 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (260)] Ended with exit code 0 [2021-10-28 09:27:49,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (239)] Ended with exit code 0 [2021-10-28 09:27:49,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (218)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:50,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (177)] Ended with exit code 0 [2021-10-28 09:27:50,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (156)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:50,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:50,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:50,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:51,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:51,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:51,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:51,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-10-28 09:27:51,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-10-28 09:27:52,140 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-10-28 09:27:52,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-28 09:27:52,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe12bbeb-29dc-4b28-910a-8864f2dc4cd0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...