./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/string-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/string-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fd601fa28543c13c2fbec075867019b65bb9d0c4bbf720a0162dbf887aa47892 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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-e943c26 [2021-10-21 20:11:39,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:11:39,816 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:11:39,860 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:11:39,861 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:11:39,863 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:11:39,865 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:11:39,868 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:11:39,871 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:11:39,873 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:11:39,874 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:11:39,876 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:11:39,877 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:11:39,878 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:11:39,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:11:39,883 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:11:39,884 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:11:39,886 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:11:39,889 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:11:39,892 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:11:39,894 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:11:39,898 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:11:39,900 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:11:39,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:11:39,906 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:11:39,906 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:11:39,907 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:11:39,908 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:11:39,913 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:11:39,915 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:11:39,916 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:11:39,918 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:11:39,920 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:11:39,922 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:11:39,924 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:11:39,925 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:11:39,926 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:11:39,926 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:11:39,927 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:11:39,928 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:11:39,930 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:11:39,931 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 20:11:39,986 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:11:39,986 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:11:39,987 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:11:39,987 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:11:39,989 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:11:39,989 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:11:39,989 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:11:39,990 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 20:11:39,990 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 20:11:39,990 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 20:11:39,990 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 20:11:39,991 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 20:11:39,991 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 20:11:39,991 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:11:39,992 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:11:39,992 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 20:11:39,992 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:11:39,992 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:11:39,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:11:39,993 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 20:11:39,993 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 20:11:39,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 20:11:39,994 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:11:39,994 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:11:39,994 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 20:11:39,995 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:11:39,995 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 20:11:39,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:11:39,995 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:11:39,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:11:39,996 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:11:39,996 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:11:39,998 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 20:11:39,998 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_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd601fa28543c13c2fbec075867019b65bb9d0c4bbf720a0162dbf887aa47892 [2021-10-21 20:11:40,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:11:40,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:11:40,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:11:40,349 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:11:40,350 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:11:40,352 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/loops/string-2.i [2021-10-21 20:11:40,460 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/data/96841492d/51c5df5d6b074fe397fd161d0c44f53b/FLAG19f229b78 [2021-10-21 20:11:41,028 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:11:41,028 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/sv-benchmarks/c/loops/string-2.i [2021-10-21 20:11:41,036 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/data/96841492d/51c5df5d6b074fe397fd161d0c44f53b/FLAG19f229b78 [2021-10-21 20:11:41,383 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/data/96841492d/51c5df5d6b074fe397fd161d0c44f53b [2021-10-21 20:11:41,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:11:41,388 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:11:41,391 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:11:41,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:11:41,402 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:11:41,403 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:11:41" (1/1) ... [2021-10-21 20:11:41,404 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ab74c6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:11:41, skipping insertion in model container [2021-10-21 20:11:41,405 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:11:41" (1/1) ... [2021-10-21 20:11:41,413 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:11:41,434 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:11:41,601 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_7186feb0-98f3-49cf-9780-11945154b0ce/sv-benchmarks/c/loops/string-2.i[896,909] [2021-10-21 20:11:41,638 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:11:41,647 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:11:41,662 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_7186feb0-98f3-49cf-9780-11945154b0ce/sv-benchmarks/c/loops/string-2.i[896,909] [2021-10-21 20:11:41,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:11:41,697 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:11:41,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:11:41 WrapperNode [2021-10-21 20:11:41,698 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:11:41,700 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:11:41,700 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:11:41,700 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:11:41,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:11:41" (1/1) ... [2021-10-21 20:11:41,720 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:11:41" (1/1) ... [2021-10-21 20:11:41,752 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:11:41,757 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:11:41,757 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:11:41,757 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:11:41,768 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:11:41" (1/1) ... [2021-10-21 20:11:41,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:11:41" (1/1) ... [2021-10-21 20:11:41,783 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:11:41" (1/1) ... [2021-10-21 20:11:41,783 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:11:41" (1/1) ... [2021-10-21 20:11:41,791 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:11:41" (1/1) ... [2021-10-21 20:11:41,798 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:11:41" (1/1) ... [2021-10-21 20:11:41,800 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:11:41" (1/1) ... [2021-10-21 20:11:41,803 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:11:41,804 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:11:41,805 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:11:41,805 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:11:41,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:11:41" (1/1) ... [2021-10-21 20:11:41,833 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:41,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:41,867 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:41,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 20:11:41,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 20:11:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:11:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-21 20:11:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:11:41,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:11:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-21 20:11:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 20:11:42,200 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:11:42,200 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-10-21 20:11:42,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:11:42 BoogieIcfgContainer [2021-10-21 20:11:42,203 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:11:42,204 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 20:11:42,205 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 20:11:42,209 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 20:11:42,210 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:11:42,210 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 08:11:41" (1/3) ... [2021-10-21 20:11:42,212 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@76732359 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:11:42, skipping insertion in model container [2021-10-21 20:11:42,213 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:11:42,213 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:11:41" (2/3) ... [2021-10-21 20:11:42,214 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@76732359 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:11:42, skipping insertion in model container [2021-10-21 20:11:42,214 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:11:42,214 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:11:42" (3/3) ... [2021-10-21 20:11:42,216 INFO L389 chiAutomizerObserver]: Analyzing ICFG string-2.i [2021-10-21 20:11:42,308 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 20:11:42,308 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 20:11:42,308 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 20:11:42,309 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 20:11:42,309 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 20:11:42,309 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 20:11:42,309 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 20:11:42,309 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 20:11:42,334 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 25 states, 24 states have (on average 1.625) internal successors, (39), 24 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:11:42,369 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2021-10-21 20:11:42,370 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:11:42,370 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:11:42,377 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-21 20:11:42,377 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:11:42,378 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 20:11:42,378 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 25 states, 24 states have (on average 1.625) internal successors, (39), 24 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:11:42,383 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2021-10-21 20:11:42,383 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:11:42,384 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:11:42,384 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-21 20:11:42,384 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:11:42,393 INFO L791 eck$LassoCheckResult]: Stem: 15#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(11); 6#L-1true havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 8#L35-3true [2021-10-21 20:11:42,393 INFO L793 eck$LassoCheckResult]: Loop: 8#L35-3true assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 10#L35-2true main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8#L35-3true [2021-10-21 20:11:42,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:11:42,401 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-21 20:11:42,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:11:42,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236583402] [2021-10-21 20:11:42,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:11:42,413 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:11:42,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:11:42,541 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:11:42,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:11:42,593 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:11:42,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:11:42,598 INFO L82 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2021-10-21 20:11:42,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:11:42,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379329929] [2021-10-21 20:11:42,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:11:42,600 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:11:42,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:11:42,621 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:11:42,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:11:42,637 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:11:42,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:11:42,652 INFO L82 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2021-10-21 20:11:42,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:11:42,653 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784285805] [2021-10-21 20:11:42,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:11:42,653 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:11:42,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:11:42,689 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:11:42,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:11:42,739 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:11:43,700 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:11:43,701 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:11:43,701 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:11:43,702 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:11:43,702 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:11:43,702 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:43,703 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:11:43,703 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:11:43,703 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-2.i_Iteration1_Lasso [2021-10-21 20:11:43,704 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:11:43,704 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:11:43,728 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:43,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:43,737 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:43,739 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:43,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:43,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:43,749 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:43,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:43,756 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:43,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:43,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:43,766 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:43,768 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:43,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:43,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:43,776 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:44,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:44,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:44,019 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:44,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:44,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:44,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:44,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:44,395 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:11:44,401 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:11:44,403 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:44,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:44,409 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:44,426 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:44,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 20:11:44,439 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:44,441 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:11:44,442 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:44,442 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:44,442 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:44,449 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:11:44,449 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:11:44,463 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:44,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:44,488 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:44,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:44,490 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:44,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 20:11:44,493 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:44,502 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:44,502 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:11:44,502 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:44,503 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:44,503 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:44,503 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:11:44,504 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:11:44,516 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:44,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:44,557 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:44,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:44,562 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:44,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 20:11:44,564 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:44,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:44,575 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:11:44,575 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:44,575 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:44,576 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:44,589 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:11:44,589 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:11:44,602 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:44,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:44,645 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:44,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:44,647 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:44,653 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:44,666 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:44,666 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:44,666 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:44,666 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:44,673 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:11:44,673 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:11:44,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 20:11:44,684 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:44,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:44,734 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:44,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:44,736 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:44,740 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:44,751 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:44,752 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:11:44,752 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:44,752 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:44,752 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:44,754 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:11:44,754 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:11:44,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-21 20:11:44,768 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:44,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:44,813 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:44,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:44,815 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:44,826 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:44,837 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:44,837 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:11:44,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:44,838 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:44,838 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:44,839 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:11:44,839 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:11:44,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-21 20:11:44,856 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:44,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:44,902 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:44,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:44,903 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:44,914 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 [2021-10-21 20:11:44,926 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:44,926 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:44,926 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:44,927 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:44,937 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:11:44,937 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:11:44,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-21 20:11:44,960 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:45,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:45,007 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:45,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:45,009 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:45,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-21 20:11:45,018 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 [2021-10-21 20:11:45,030 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:45,031 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:11:45,031 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:45,031 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:45,031 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:45,032 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:11:45,032 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:11:45,042 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:45,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:45,077 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:45,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:45,078 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:45,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-21 20:11:45,085 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 [2021-10-21 20:11:45,096 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:45,097 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:45,097 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:45,097 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:45,100 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:11:45,101 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:11:45,125 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:45,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-10-21 20:11:45,150 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:45,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:45,151 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:45,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-21 20:11:45,158 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:45,167 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:45,167 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:11:45,167 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:45,167 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:45,167 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:45,168 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:11:45,168 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:11:45,174 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:45,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:45,199 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:45,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:45,200 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:45,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-21 20:11:45,206 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:45,214 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:45,214 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:45,215 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:45,215 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:45,218 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:11:45,218 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:11:45,249 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:45,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-10-21 20:11:45,272 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:45,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:45,273 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:45,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-21 20:11:45,277 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 [2021-10-21 20:11:45,287 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:45,288 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:11:45,288 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:45,288 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:45,288 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:45,289 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:11:45,289 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:11:45,300 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:45,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:45,333 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:45,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:45,334 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:45,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-21 20:11:45,337 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 [2021-10-21 20:11:45,346 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:45,346 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:11:45,346 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:45,346 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:45,346 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:45,347 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:11:45,347 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:11:45,353 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:45,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:45,380 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:45,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:45,381 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:45,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-21 20:11:45,390 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:45,399 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:45,399 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:11:45,399 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:45,399 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:45,399 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:45,400 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:11:45,400 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:11:45,402 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:45,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:45,425 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:45,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:45,426 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:45,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-21 20:11:45,432 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 [2021-10-21 20:11:45,441 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:45,441 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:11:45,441 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:45,441 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:45,441 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:45,442 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:11:45,442 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:11:45,454 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:45,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:45,479 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:45,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:45,480 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:45,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-21 20:11:45,485 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:45,494 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:45,494 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:45,494 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:45,494 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:45,501 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:11:45,502 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:11:45,524 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:45,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:45,564 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:45,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:45,569 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:45,577 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:45,588 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:45,588 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:45,588 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:45,588 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:45,591 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:11:45,591 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:11:45,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-21 20:11:45,607 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:45,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:45,643 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:45,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:45,645 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:45,654 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:45,665 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:45,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:45,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:45,665 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:45,668 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:11:45,668 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:11:45,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-21 20:11:45,689 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:45,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:45,713 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:45,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:45,714 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:45,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-21 20:11:45,721 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:45,729 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:45,730 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:45,730 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:45,730 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:45,733 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:11:45,733 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:11:45,760 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:45,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:45,802 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:45,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:45,804 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:45,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-21 20:11:45,814 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:45,822 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:45,822 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:45,822 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:45,823 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:45,829 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:11:45,830 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:11:45,848 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:45,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:45,888 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:45,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:45,894 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:45,903 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:45,914 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:45,915 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:11:45,915 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:45,915 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:45,915 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:45,916 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:11:45,916 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:11:45,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-21 20:11:45,940 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:45,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:45,974 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:45,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:45,975 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:45,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-21 20:11:45,979 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:45,990 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:45,990 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:45,990 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:45,990 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:45,995 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:11:45,995 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:11:46,006 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:11:46,061 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2021-10-21 20:11:46,061 INFO L444 ModelExtractionUtils]: 3 out of 16 variables were initially zero. Simplification set additionally 10 variables to zero. [2021-10-21 20:11:46,063 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:46,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:46,085 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:46,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-21 20:11:46,101 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:11:46,131 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 20:11:46,131 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:11:46,131 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_1, ULTIMATE.start_main_~i~0) = 9*v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_1 - 2*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-10-21 20:11:46,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:46,252 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-10-21 20:11:46,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:11:46,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:11:46,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:11:46,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:11:46,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:11:46,321 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 20:11:46,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:11:46,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:11:46,413 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 20:11:46,415 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 25 states, 24 states have (on average 1.625) internal successors, (39), 24 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:11:46,489 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 25 states, 24 states have (on average 1.625) internal successors, (39), 24 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 50 states and 80 transitions. Complement of second has 8 states. [2021-10-21 20:11:46,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-21 20:11:46,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:11:46,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 40 transitions. [2021-10-21 20:11:46,496 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 40 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-21 20:11:46,497 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:11:46,497 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 40 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-21 20:11:46,497 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:11:46,497 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 40 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-21 20:11:46,497 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:11:46,498 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 80 transitions. [2021-10-21 20:11:46,504 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-10-21 20:11:46,508 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 19 states and 28 transitions. [2021-10-21 20:11:46,509 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-10-21 20:11:46,510 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-10-21 20:11:46,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 28 transitions. [2021-10-21 20:11:46,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:11:46,511 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 28 transitions. [2021-10-21 20:11:46,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 28 transitions. [2021-10-21 20:11:46,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-10-21 20:11:46,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 18 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:11:46,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 28 transitions. [2021-10-21 20:11:46,537 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 28 transitions. [2021-10-21 20:11:46,537 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 28 transitions. [2021-10-21 20:11:46,538 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 20:11:46,538 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 28 transitions. [2021-10-21 20:11:46,539 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-10-21 20:11:46,539 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:11:46,539 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:11:46,539 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-21 20:11:46,540 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:11:46,540 INFO L791 eck$LassoCheckResult]: Stem: 164#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(11); 165#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 173#L35-3 assume !(main_~i~0 < 5); 170#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 171#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 161#L39-3 [2021-10-21 20:11:46,540 INFO L793 eck$LassoCheckResult]: Loop: 161#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 163#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 161#L39-3 [2021-10-21 20:11:46,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:11:46,541 INFO L82 PathProgramCache]: Analyzing trace with hash 28696938, now seen corresponding path program 1 times [2021-10-21 20:11:46,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:11:46,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957014621] [2021-10-21 20:11:46,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:11:46,542 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:11:46,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:11:46,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:11:46,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:11:46,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957014621] [2021-10-21 20:11:46,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957014621] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:11:46,600 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:11:46,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:11:46,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257978283] [2021-10-21 20:11:46,604 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:11:46,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:11:46,605 INFO L82 PathProgramCache]: Analyzing trace with hash 1891, now seen corresponding path program 1 times [2021-10-21 20:11:46,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:11:46,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438741382] [2021-10-21 20:11:46,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:11:46,605 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:11:46,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:11:46,613 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:11:46,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:11:46,621 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:11:46,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:11:46,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:11:46,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:11:46,686 INFO L87 Difference]: Start difference. First operand 19 states and 28 transitions. cyclomatic complexity: 14 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:11:46,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:11:46,736 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2021-10-21 20:11:46,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:11:46,737 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 30 transitions. [2021-10-21 20:11:46,745 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-10-21 20:11:46,753 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 24 states and 30 transitions. [2021-10-21 20:11:46,755 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2021-10-21 20:11:46,755 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2021-10-21 20:11:46,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 30 transitions. [2021-10-21 20:11:46,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:11:46,758 INFO L681 BuchiCegarLoop]: Abstraction has 24 states and 30 transitions. [2021-10-21 20:11:46,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 30 transitions. [2021-10-21 20:11:46,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 20. [2021-10-21 20:11:46,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.25) internal successors, (25), 19 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:11:46,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2021-10-21 20:11:46,766 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2021-10-21 20:11:46,767 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2021-10-21 20:11:46,767 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 20:11:46,767 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 25 transitions. [2021-10-21 20:11:46,769 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-10-21 20:11:46,769 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:11:46,769 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:11:46,770 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:11:46,770 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:11:46,770 INFO L791 eck$LassoCheckResult]: Stem: 212#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 213#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 221#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 222#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 223#L35-3 assume !(main_~i~0 < 5); 218#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 219#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 208#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 209#L39-2 [2021-10-21 20:11:46,771 INFO L793 eck$LassoCheckResult]: Loop: 209#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 225#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 209#L39-2 [2021-10-21 20:11:46,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:11:46,773 INFO L82 PathProgramCache]: Analyzing trace with hash 265181045, now seen corresponding path program 1 times [2021-10-21 20:11:46,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:11:46,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545118496] [2021-10-21 20:11:46,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:11:46,774 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:11:46,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:11:46,853 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:11:46,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:11:46,854 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545118496] [2021-10-21 20:11:46,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545118496] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:11:46,854 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032955196] [2021-10-21 20:11:46,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:11:46,855 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:11:46,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:46,856 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:11:46,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-10-21 20:11:46,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:11:46,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 20:11:46,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:11:46,949 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:11:46,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1032955196] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:11:46,950 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:11:46,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-10-21 20:11:46,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517443580] [2021-10-21 20:11:46,951 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:11:46,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:11:46,952 INFO L82 PathProgramCache]: Analyzing trace with hash 1951, now seen corresponding path program 2 times [2021-10-21 20:11:46,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:11:46,952 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877826051] [2021-10-21 20:11:46,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:11:46,953 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:11:46,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:11:46,959 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:11:46,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:11:46,966 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:11:47,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:11:47,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 20:11:47,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:11:47,017 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. cyclomatic complexity: 10 Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:11:47,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:11:47,092 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2021-10-21 20:11:47,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 20:11:47,093 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 37 transitions. [2021-10-21 20:11:47,096 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-10-21 20:11:47,098 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 30 states and 37 transitions. [2021-10-21 20:11:47,098 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2021-10-21 20:11:47,099 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2021-10-21 20:11:47,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 37 transitions. [2021-10-21 20:11:47,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:11:47,099 INFO L681 BuchiCegarLoop]: Abstraction has 30 states and 37 transitions. [2021-10-21 20:11:47,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 37 transitions. [2021-10-21 20:11:47,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2021-10-21 20:11:47,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 23 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) [2021-10-21 20:11:47,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2021-10-21 20:11:47,110 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2021-10-21 20:11:47,110 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2021-10-21 20:11:47,111 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-21 20:11:47,111 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 29 transitions. [2021-10-21 20:11:47,112 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-10-21 20:11:47,112 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:11:47,113 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:11:47,115 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-10-21 20:11:47,115 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:11:47,115 INFO L791 eck$LassoCheckResult]: Stem: 291#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(11); 292#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 300#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 301#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 302#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 303#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 308#L35-3 assume !(main_~i~0 < 5); 297#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 298#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 304#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 306#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 287#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 288#L39-2 [2021-10-21 20:11:47,115 INFO L793 eck$LassoCheckResult]: Loop: 288#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 310#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 288#L39-2 [2021-10-21 20:11:47,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:11:47,116 INFO L82 PathProgramCache]: Analyzing trace with hash 780717205, now seen corresponding path program 1 times [2021-10-21 20:11:47,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:11:47,117 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511971427] [2021-10-21 20:11:47,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:11:47,118 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:11:47,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:11:47,217 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 20:11:47,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:11:47,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511971427] [2021-10-21 20:11:47,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511971427] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:11:47,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1473275706] [2021-10-21 20:11:47,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:11:47,219 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:11:47,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:47,226 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:11:47,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-10-21 20:11:47,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:11:47,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:11:47,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:11:47,396 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 20:11:47,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1473275706] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:11:47,397 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:11:47,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-10-21 20:11:47,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187418149] [2021-10-21 20:11:47,398 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:11:47,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:11:47,399 INFO L82 PathProgramCache]: Analyzing trace with hash 1951, now seen corresponding path program 3 times [2021-10-21 20:11:47,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:11:47,399 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906064071] [2021-10-21 20:11:47,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:11:47,400 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:11:47,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:11:47,405 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:11:47,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:11:47,414 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:11:47,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:47,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:11:47,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 20:11:47,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-21 20:11:47,474 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. cyclomatic complexity: 10 Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:11:47,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:11:47,563 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2021-10-21 20:11:47,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 20:11:47,564 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 44 transitions. [2021-10-21 20:11:47,572 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-10-21 20:11:47,573 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 36 states and 44 transitions. [2021-10-21 20:11:47,573 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2021-10-21 20:11:47,573 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2021-10-21 20:11:47,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 44 transitions. [2021-10-21 20:11:47,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:11:47,574 INFO L681 BuchiCegarLoop]: Abstraction has 36 states and 44 transitions. [2021-10-21 20:11:47,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 44 transitions. [2021-10-21 20:11:47,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2021-10-21 20:11:47,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 27 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) [2021-10-21 20:11:47,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2021-10-21 20:11:47,580 INFO L704 BuchiCegarLoop]: Abstraction has 28 states and 33 transitions. [2021-10-21 20:11:47,580 INFO L587 BuchiCegarLoop]: Abstraction has 28 states and 33 transitions. [2021-10-21 20:11:47,580 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-21 20:11:47,580 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 33 transitions. [2021-10-21 20:11:47,584 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-10-21 20:11:47,584 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:11:47,584 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:11:47,586 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 3, 2, 1, 1, 1, 1, 1] [2021-10-21 20:11:47,586 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:11:47,586 INFO L791 eck$LassoCheckResult]: Stem: 393#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(11); 394#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 402#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 403#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 409#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 416#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 404#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 405#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 413#L35-3 assume !(main_~i~0 < 5); 399#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 400#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 389#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 390#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 407#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 415#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 414#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 412#L39-2 [2021-10-21 20:11:47,587 INFO L793 eck$LassoCheckResult]: Loop: 412#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 411#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 412#L39-2 [2021-10-21 20:11:47,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:11:47,587 INFO L82 PathProgramCache]: Analyzing trace with hash 2111137973, now seen corresponding path program 2 times [2021-10-21 20:11:47,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:11:47,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656195570] [2021-10-21 20:11:47,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:11:47,588 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:11:47,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:11:47,709 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-21 20:11:47,709 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:11:47,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656195570] [2021-10-21 20:11:47,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656195570] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:11:47,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359750902] [2021-10-21 20:11:47,710 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 20:11:47,711 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:11:47,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:47,712 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:11:47,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-10-21 20:11:47,786 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 20:11:47,786 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:11:47,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 20:11:47,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:11:47,860 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-21 20:11:47,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359750902] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:11:47,865 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:11:47,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-10-21 20:11:47,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111869551] [2021-10-21 20:11:47,871 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:11:47,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:11:47,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1951, now seen corresponding path program 4 times [2021-10-21 20:11:47,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:11:47,875 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244798524] [2021-10-21 20:11:47,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:11:47,875 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:11:47,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:11:47,884 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:11:47,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:11:47,896 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:11:47,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:11:47,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 20:11:47,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:11:47,946 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. cyclomatic complexity: 10 Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:11:48,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:11:48,036 INFO L93 Difference]: Finished difference Result 42 states and 51 transitions. [2021-10-21 20:11:48,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 20:11:48,037 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 51 transitions. [2021-10-21 20:11:48,040 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-10-21 20:11:48,042 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 42 states and 51 transitions. [2021-10-21 20:11:48,043 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2021-10-21 20:11:48,043 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2021-10-21 20:11:48,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 51 transitions. [2021-10-21 20:11:48,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:11:48,044 INFO L681 BuchiCegarLoop]: Abstraction has 42 states and 51 transitions. [2021-10-21 20:11:48,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 51 transitions. [2021-10-21 20:11:48,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 32. [2021-10-21 20:11:48,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 32 states have (on average 1.15625) internal successors, (37), 31 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:11:48,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2021-10-21 20:11:48,052 INFO L704 BuchiCegarLoop]: Abstraction has 32 states and 37 transitions. [2021-10-21 20:11:48,052 INFO L587 BuchiCegarLoop]: Abstraction has 32 states and 37 transitions. [2021-10-21 20:11:48,052 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-21 20:11:48,052 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 37 transitions. [2021-10-21 20:11:48,053 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-10-21 20:11:48,053 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:11:48,053 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:11:48,054 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 4, 3, 1, 1, 1, 1, 1] [2021-10-21 20:11:48,055 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:11:48,055 INFO L791 eck$LassoCheckResult]: Stem: 518#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(11); 519#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 527#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 528#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 529#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 530#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 545#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 544#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 543#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 538#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 537#L35-3 assume !(main_~i~0 < 5); 524#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 525#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 514#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 515#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 532#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 542#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 541#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 540#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 539#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 536#L39-2 [2021-10-21 20:11:48,055 INFO L793 eck$LassoCheckResult]: Loop: 536#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 535#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 536#L39-2 [2021-10-21 20:11:48,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:11:48,056 INFO L82 PathProgramCache]: Analyzing trace with hash 213314517, now seen corresponding path program 3 times [2021-10-21 20:11:48,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:11:48,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636614866] [2021-10-21 20:11:48,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:11:48,057 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:11:48,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:11:48,158 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-21 20:11:48,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:11:48,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636614866] [2021-10-21 20:11:48,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636614866] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:11:48,159 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513076829] [2021-10-21 20:11:48,159 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 20:11:48,159 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:11:48,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:48,162 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:11:48,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-10-21 20:11:48,257 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-10-21 20:11:48,258 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:11:48,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 20:11:48,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:11:48,339 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-21 20:11:48,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513076829] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:11:48,339 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:11:48,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-10-21 20:11:48,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479814152] [2021-10-21 20:11:48,340 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:11:48,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:11:48,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1951, now seen corresponding path program 5 times [2021-10-21 20:11:48,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:11:48,341 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975838178] [2021-10-21 20:11:48,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:11:48,342 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:11:48,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:11:48,346 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:11:48,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:11:48,351 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:11:48,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:11:48,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 20:11:48,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-21 20:11:48,408 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. cyclomatic complexity: 10 Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:11:48,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:11:48,507 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2021-10-21 20:11:48,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 20:11:48,508 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 56 transitions. [2021-10-21 20:11:48,512 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-10-21 20:11:48,513 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 46 states and 56 transitions. [2021-10-21 20:11:48,514 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2021-10-21 20:11:48,514 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-10-21 20:11:48,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 56 transitions. [2021-10-21 20:11:48,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:11:48,516 INFO L681 BuchiCegarLoop]: Abstraction has 46 states and 56 transitions. [2021-10-21 20:11:48,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 56 transitions. [2021-10-21 20:11:48,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 36. [2021-10-21 20:11:48,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 35 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:11:48,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2021-10-21 20:11:48,525 INFO L704 BuchiCegarLoop]: Abstraction has 36 states and 41 transitions. [2021-10-21 20:11:48,525 INFO L587 BuchiCegarLoop]: Abstraction has 36 states and 41 transitions. [2021-10-21 20:11:48,525 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-21 20:11:48,525 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 41 transitions. [2021-10-21 20:11:48,526 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-10-21 20:11:48,526 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:11:48,526 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:11:48,528 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 4, 1, 1, 1, 1, 1] [2021-10-21 20:11:48,529 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:11:48,529 INFO L791 eck$LassoCheckResult]: Stem: 664#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(11); 665#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 673#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 674#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 675#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 676#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 695#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 694#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 693#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 692#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 691#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 689#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 688#L35-3 assume !(main_~i~0 < 5); 670#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 671#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 662#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 663#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 678#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 690#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 687#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 686#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 685#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 684#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 683#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 682#L39-2 [2021-10-21 20:11:48,529 INFO L793 eck$LassoCheckResult]: Loop: 682#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 681#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 682#L39-2 [2021-10-21 20:11:48,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:11:48,530 INFO L82 PathProgramCache]: Analyzing trace with hash 1212159477, now seen corresponding path program 4 times [2021-10-21 20:11:48,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:11:48,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154622169] [2021-10-21 20:11:48,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:11:48,531 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:11:48,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:11:48,589 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:11:48,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:11:48,645 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:11:48,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:11:48,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1951, now seen corresponding path program 6 times [2021-10-21 20:11:48,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:11:48,653 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059874584] [2021-10-21 20:11:48,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:11:48,653 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:11:48,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:11:48,658 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:11:48,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:11:48,665 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:11:48,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:11:48,666 INFO L82 PathProgramCache]: Analyzing trace with hash 949121171, now seen corresponding path program 5 times [2021-10-21 20:11:48,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:11:48,666 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042024800] [2021-10-21 20:11:48,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:11:48,667 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:11:48,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:11:48,816 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-21 20:11:48,817 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:11:48,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042024800] [2021-10-21 20:11:48,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042024800] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:11:48,821 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22584520] [2021-10-21 20:11:48,821 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-21 20:11:48,821 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:11:48,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:48,823 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:11:48,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-10-21 20:11:49,028 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-10-21 20:11:49,028 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:11:49,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 20:11:49,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:11:49,134 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-21 20:11:49,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22584520] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:11:49,135 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 20:11:49,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2021-10-21 20:11:49,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584551945] [2021-10-21 20:11:49,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:11:49,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 20:11:49,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2021-10-21 20:11:49,187 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. cyclomatic complexity: 10 Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:11:49,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:11:49,329 INFO L93 Difference]: Finished difference Result 48 states and 57 transitions. [2021-10-21 20:11:49,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 20:11:49,329 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 57 transitions. [2021-10-21 20:11:49,330 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-10-21 20:11:49,331 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 48 states and 57 transitions. [2021-10-21 20:11:49,331 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2021-10-21 20:11:49,331 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 48 [2021-10-21 20:11:49,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 57 transitions. [2021-10-21 20:11:49,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:11:49,332 INFO L681 BuchiCegarLoop]: Abstraction has 48 states and 57 transitions. [2021-10-21 20:11:49,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 57 transitions. [2021-10-21 20:11:49,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 36. [2021-10-21 20:11:49,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.0833333333333333) internal successors, (39), 35 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:11:49,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2021-10-21 20:11:49,336 INFO L704 BuchiCegarLoop]: Abstraction has 36 states and 39 transitions. [2021-10-21 20:11:49,336 INFO L587 BuchiCegarLoop]: Abstraction has 36 states and 39 transitions. [2021-10-21 20:11:49,336 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-21 20:11:49,336 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 39 transitions. [2021-10-21 20:11:49,337 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-10-21 20:11:49,337 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:11:49,337 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:11:49,338 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:11:49,338 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:11:49,339 INFO L791 eck$LassoCheckResult]: Stem: 837#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(11); 838#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 846#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 847#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 851#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 868#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 867#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 866#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 865#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 864#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 863#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 862#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 860#L35-3 assume !(main_~i~0 < 5); 843#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 844#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 833#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 834#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 849#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 861#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 859#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 858#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 857#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 856#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 855#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 854#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 853#L39-3 assume !(main_~i~0 < 5); 852#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 848#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 839#L44-3 [2021-10-21 20:11:49,339 INFO L793 eck$LassoCheckResult]: Loop: 839#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 840#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 839#L44-3 [2021-10-21 20:11:49,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:11:49,340 INFO L82 PathProgramCache]: Analyzing trace with hash 1572377782, now seen corresponding path program 1 times [2021-10-21 20:11:49,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:11:49,340 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609749802] [2021-10-21 20:11:49,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:11:49,341 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:11:49,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:11:49,361 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:11:49,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:11:49,388 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:11:49,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:11:49,389 INFO L82 PathProgramCache]: Analyzing trace with hash 2406, now seen corresponding path program 1 times [2021-10-21 20:11:49,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:11:49,389 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329790335] [2021-10-21 20:11:49,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:11:49,390 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:11:49,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:11:49,394 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:11:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:11:49,398 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:11:49,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:11:49,399 INFO L82 PathProgramCache]: Analyzing trace with hash -773438245, now seen corresponding path program 1 times [2021-10-21 20:11:49,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:11:49,399 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126438177] [2021-10-21 20:11:49,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:11:49,400 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:11:49,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:11:49,432 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:11:49,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:11:49,471 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:11:54,470 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:11:54,470 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:11:54,470 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:11:54,470 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:11:54,470 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:11:54,470 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:54,470 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:11:54,471 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:11:54,471 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-2.i_Iteration8_Lasso [2021-10-21 20:11:54,471 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:11:54,471 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:11:54,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:54,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:54,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:54,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:54,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:54,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:54,488 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:54,490 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:54,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:54,494 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:54,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:54,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:54,501 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:54,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:54,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:54,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:54,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:54,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:54,513 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:54,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:54,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:54,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:11:55,233 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:11:55,233 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:11:55,233 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:55,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:55,236 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:55,238 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:55,250 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:55,250 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:11:55,251 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:55,251 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:55,251 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:55,252 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:11:55,252 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:11:55,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-21 20:11:55,268 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:55,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:55,299 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:55,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:55,300 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:55,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-21 20:11:55,302 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:55,310 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:55,310 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:11:55,311 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:55,311 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:55,311 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:55,311 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:11:55,311 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:11:55,314 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:55,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:55,338 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:55,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:55,339 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:55,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-21 20:11:55,341 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:55,349 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:55,350 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:55,350 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:55,350 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:55,351 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:11:55,351 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:11:55,359 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:55,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:55,384 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:55,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:55,385 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:55,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-21 20:11:55,389 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 [2021-10-21 20:11:55,396 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:55,396 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:11:55,397 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:55,397 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:55,397 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:55,397 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:11:55,397 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:11:55,410 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:55,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-10-21 20:11:55,433 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:55,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:55,434 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:55,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-21 20:11:55,437 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:55,445 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:55,445 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:11:55,446 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:55,446 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:55,446 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:55,446 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:11:55,446 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:11:55,455 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:55,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:55,485 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:55,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:55,486 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:55,505 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:55,515 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:55,515 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:11:55,515 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:55,515 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:55,515 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:55,516 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:11:55,516 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:11:55,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-21 20:11:55,528 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:55,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:55,569 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:55,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:55,573 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:55,585 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:55,595 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:55,596 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:11:55,596 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:55,596 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:55,596 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:55,597 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:11:55,597 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:11:55,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-21 20:11:55,620 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:55,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-10-21 20:11:55,649 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:55,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:55,650 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:55,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-21 20:11:55,652 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:55,659 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:55,659 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:11:55,659 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:55,660 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:55,660 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:55,660 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:11:55,660 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:11:55,665 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:55,687 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-10-21 20:11:55,688 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:55,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:55,689 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:55,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-21 20:11:55,691 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:55,700 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:55,700 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:11:55,700 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:55,700 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:55,700 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:55,701 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:11:55,701 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:11:55,703 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:55,725 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-10-21 20:11:55,725 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:55,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:55,726 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:55,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-21 20:11:55,728 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:55,736 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:55,736 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:11:55,736 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:55,736 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:55,736 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:55,737 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:11:55,737 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:11:55,738 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:55,761 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2021-10-21 20:11:55,762 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:55,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:55,763 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:55,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-21 20:11:55,770 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:55,778 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:55,778 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:11:55,778 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:55,778 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:55,779 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:55,779 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:11:55,779 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:11:55,798 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:55,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:55,824 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:55,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:55,825 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:55,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-21 20:11:55,826 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:55,835 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:55,836 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:55,836 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:55,836 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:55,837 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:11:55,837 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:11:55,840 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:55,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:55,865 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:55,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:55,866 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:55,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-21 20:11:55,868 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:55,876 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:55,876 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:11:55,876 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:55,876 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:55,876 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:55,877 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:11:55,877 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:11:55,878 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:55,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:55,902 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:55,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:55,903 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:55,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-21 20:11:55,905 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 [2021-10-21 20:11:55,913 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:55,913 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:55,913 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:55,913 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:55,915 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:11:55,915 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:11:55,941 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:55,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:55,966 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:55,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:55,967 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:55,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-21 20:11:55,970 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:55,978 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:55,978 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:11:55,979 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:55,979 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:55,979 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:55,979 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:11:55,980 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:11:55,993 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:56,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:56,017 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:56,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:56,019 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:56,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-21 20:11:56,021 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:56,030 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:56,030 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:11:56,030 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:56,030 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:56,030 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:56,031 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:11:56,031 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:11:56,032 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:56,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:56,056 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:56,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:56,058 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:56,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-21 20:11:56,076 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:56,085 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:56,085 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:11:56,085 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:56,085 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:56,085 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:56,086 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:11:56,086 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:11:56,087 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:56,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2021-10-21 20:11:56,110 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:56,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:56,111 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:56,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-21 20:11:56,112 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:56,120 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:56,120 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:11:56,120 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:56,120 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:56,121 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:56,121 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:11:56,121 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:11:56,125 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:56,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2021-10-21 20:11:56,148 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:56,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:56,149 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:56,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-21 20:11:56,150 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:56,157 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:56,158 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:56,158 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:56,158 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:56,159 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:11:56,159 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:11:56,162 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:56,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:56,185 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:56,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:56,185 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:56,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-21 20:11:56,187 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 [2021-10-21 20:11:56,195 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:56,195 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:56,195 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:56,195 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:56,196 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:11:56,197 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:11:56,213 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:56,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:56,238 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:56,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:56,239 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:56,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-21 20:11:56,246 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 [2021-10-21 20:11:56,254 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:56,254 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:56,255 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:56,255 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:56,257 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:11:56,257 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:11:56,284 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:56,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2021-10-21 20:11:56,324 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:56,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:56,325 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:56,327 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:56,338 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:56,339 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:56,339 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:56,339 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:56,341 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:11:56,341 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:11:56,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-21 20:11:56,357 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:56,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:56,397 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:56,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:56,401 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:56,405 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 [2021-10-21 20:11:56,416 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:56,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:56,417 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:56,417 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:56,420 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:11:56,420 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:11:56,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-21 20:11:56,444 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:56,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:56,477 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:56,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:56,478 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:56,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-21 20:11:56,480 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:56,492 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:56,493 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:56,493 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:56,493 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:56,495 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:11:56,495 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:11:56,513 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:56,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:56,554 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:56,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:56,557 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:56,562 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:56,574 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:56,574 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:11:56,574 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:56,574 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:56,574 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:56,575 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:11:56,576 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:11:56,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-10-21 20:11:56,588 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:56,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:56,629 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:56,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:56,630 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:56,633 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 [2021-10-21 20:11:56,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-21 20:11:56,643 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:56,643 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:56,643 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:56,643 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:56,644 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:11:56,645 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:11:56,657 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:56,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:56,696 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:56,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:56,701 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:56,703 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:56,714 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:56,715 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:56,715 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:56,715 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:56,718 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:11:56,718 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:11:56,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-21 20:11:56,732 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:56,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:56,772 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:56,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:56,773 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:56,777 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:56,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-21 20:11:56,786 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:56,786 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:11:56,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:56,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:56,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:56,786 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:11:56,786 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:11:56,787 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:56,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:56,809 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:56,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:56,810 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:56,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-21 20:11:56,811 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:56,819 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:56,820 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:11:56,820 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:56,820 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:56,820 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:56,820 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:11:56,820 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:11:56,821 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:56,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2021-10-21 20:11:56,843 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:56,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:56,844 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:56,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-10-21 20:11:56,845 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:56,852 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:56,852 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:56,853 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:56,853 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:56,854 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:11:56,854 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:11:56,884 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:56,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:56,922 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:56,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:56,925 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:56,933 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:56,944 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:56,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:56,944 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:56,944 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:56,946 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:11:56,946 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:11:56,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-10-21 20:11:56,964 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:57,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:57,002 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:57,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:57,003 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:57,005 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 [2021-10-21 20:11:57,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-10-21 20:11:57,013 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:57,014 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:11:57,014 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:57,014 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:57,014 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:57,014 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:11:57,014 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:11:57,027 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:57,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:57,049 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:57,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:57,050 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:57,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-10-21 20:11:57,051 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:57,059 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:57,059 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:11:57,059 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:57,059 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:57,059 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:57,059 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:11:57,059 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:11:57,060 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:57,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2021-10-21 20:11:57,082 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:57,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:57,082 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:57,084 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:57,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-10-21 20:11:57,093 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:57,093 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:11:57,093 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:57,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:57,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:57,093 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:11:57,094 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:11:57,094 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:11:57,115 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2021-10-21 20:11:57,115 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:57,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:57,116 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:57,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-10-21 20:11:57,117 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:11:57,124 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:11:57,124 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:11:57,124 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:11:57,124 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:11:57,127 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:11:57,127 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:11:57,133 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:11:57,150 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-10-21 20:11:57,150 INFO L444 ModelExtractionUtils]: 0 out of 13 variables were initially zero. Simplification set additionally 9 variables to zero. [2021-10-21 20:11:57,150 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:11:57,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:57,165 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:57,166 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:11:57,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-10-21 20:11:57,178 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 20:11:57,178 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:11:57,178 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_2, ULTIMATE.start_main_~#string_A~0.offset, ULTIMATE.start_main_~nc_A~0) = 1*v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_2 - 1*ULTIMATE.start_main_~#string_A~0.offset - 1*ULTIMATE.start_main_~nc_A~0 Supporting invariants [] [2021-10-21 20:11:57,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:57,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:57,307 INFO L297 tatePredicateManager]: 23 out of 23 supporting invariants were superfluous and have been removed [2021-10-21 20:11:57,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:11:57,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:11:57,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:11:57,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:11:57,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:11:57,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:11:57,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:11:57,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:11:57,489 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 20:11:57,489 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 39 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:11:57,511 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 39 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 44 states and 51 transitions. Complement of second has 4 states. [2021-10-21 20:11:57,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 20:11:57,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:11:57,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 23 transitions. [2021-10-21 20:11:57,512 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 28 letters. Loop has 2 letters. [2021-10-21 20:11:57,514 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:11:57,514 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 30 letters. Loop has 2 letters. [2021-10-21 20:11:57,514 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:11:57,515 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 28 letters. Loop has 4 letters. [2021-10-21 20:11:57,515 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:11:57,515 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 51 transitions. [2021-10-21 20:11:57,516 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-10-21 20:11:57,517 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 38 states and 42 transitions. [2021-10-21 20:11:57,517 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2021-10-21 20:11:57,517 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-10-21 20:11:57,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 42 transitions. [2021-10-21 20:11:57,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:11:57,518 INFO L681 BuchiCegarLoop]: Abstraction has 38 states and 42 transitions. [2021-10-21 20:11:57,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 42 transitions. [2021-10-21 20:11:57,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-10-21 20:11:57,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 38 states have (on average 1.105263157894737) internal successors, (42), 37 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:11:57,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2021-10-21 20:11:57,521 INFO L704 BuchiCegarLoop]: Abstraction has 38 states and 42 transitions. [2021-10-21 20:11:57,522 INFO L587 BuchiCegarLoop]: Abstraction has 38 states and 42 transitions. [2021-10-21 20:11:57,522 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-21 20:11:57,522 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 42 transitions. [2021-10-21 20:11:57,522 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-10-21 20:11:57,523 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:11:57,523 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:11:57,524 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:11:57,524 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:11:57,524 INFO L791 eck$LassoCheckResult]: Stem: 1119#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(11); 1120#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 1130#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1137#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1131#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1132#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1152#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1151#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1150#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1149#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1148#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1147#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1146#L35-3 assume !(main_~i~0 < 5); 1127#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 1128#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 1115#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1116#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1134#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1145#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1144#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1143#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1142#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1141#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1140#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1139#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1138#L39-3 assume !(main_~i~0 < 5); 1136#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 1133#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 1121#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 1123#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 1125#L44-4 main_~nc_B~0 := 0; 1126#L48-3 [2021-10-21 20:11:57,525 INFO L793 eck$LassoCheckResult]: Loop: 1126#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 1135#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 1126#L48-3 [2021-10-21 20:11:57,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:11:57,525 INFO L82 PathProgramCache]: Analyzing trace with hash 1793218173, now seen corresponding path program 1 times [2021-10-21 20:11:57,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:11:57,526 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597717894] [2021-10-21 20:11:57,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:11:57,526 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:11:57,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:11:57,546 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:11:57,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:11:57,570 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:11:57,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:11:57,571 INFO L82 PathProgramCache]: Analyzing trace with hash 2854, now seen corresponding path program 1 times [2021-10-21 20:11:57,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:11:57,571 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858828213] [2021-10-21 20:11:57,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:11:57,572 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:11:57,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:11:57,576 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:11:57,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:11:57,579 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:11:57,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:11:57,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1000780450, now seen corresponding path program 1 times [2021-10-21 20:11:57,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:11:57,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275466137] [2021-10-21 20:11:57,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:11:57,581 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:11:57,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:11:57,598 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:11:57,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:11:57,621 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:12:03,593 WARN L207 SmtUtils]: Spent 5.93 s on a formula simplification. DAG size of input: 259 DAG size of output: 198 [2021-10-21 20:12:04,657 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:12:04,657 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:12:04,657 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:12:04,657 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:12:04,657 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:12:04,657 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:04,657 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:12:04,657 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:12:04,658 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-2.i_Iteration9_Lasso [2021-10-21 20:12:04,658 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:12:04,658 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:12:04,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:05,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:05,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:05,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:05,106 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:05,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:05,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:05,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:05,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:05,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:05,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:05,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:05,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:05,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:05,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:05,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:05,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:05,141 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:05,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:05,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:05,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:05,468 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:12:05,468 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:12:05,469 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:05,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:05,472 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:05,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-10-21 20:12:05,474 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:05,482 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:05,482 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:05,482 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:05,482 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:05,483 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:12:05,483 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:05,520 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:05,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2021-10-21 20:12:05,555 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:05,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:05,556 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:05,565 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 [2021-10-21 20:12:05,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:05,575 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:05,575 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:05,575 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:05,578 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:12:05,578 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:05,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-10-21 20:12:05,604 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:05,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2021-10-21 20:12:05,638 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:05,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:05,639 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:05,641 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:05,651 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:05,651 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:05,651 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:05,651 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:05,653 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:12:05,653 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:05,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-10-21 20:12:05,668 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:05,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2021-10-21 20:12:05,704 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:05,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:05,705 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:05,707 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:05,717 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:05,717 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:05,717 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:05,717 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:05,719 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:12:05,719 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:05,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-10-21 20:12:05,724 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:05,744 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2021-10-21 20:12:05,745 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:05,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:05,745 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:05,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-10-21 20:12:05,749 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:05,757 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:05,757 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:05,757 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:05,757 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:05,763 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:12:05,763 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:05,796 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:12:05,844 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2021-10-21 20:12:05,844 INFO L444 ModelExtractionUtils]: 2 out of 28 variables were initially zero. Simplification set additionally 22 variables to zero. [2021-10-21 20:12:05,845 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:05,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:05,849 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:05,853 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:12:05,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-10-21 20:12:05,862 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-10-21 20:12:05,862 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:12:05,863 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~nc_B~0, v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_3) = -1*ULTIMATE.start_main_~nc_B~0 + 1*v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_3 Supporting invariants [1*ULTIMATE.start_main_~#string_B~0.offset >= 0] [2021-10-21 20:12:05,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Ended with exit code 0 [2021-10-21 20:12:05,966 INFO L297 tatePredicateManager]: 16 out of 17 supporting invariants were superfluous and have been removed [2021-10-21 20:12:05,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:12:06,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:12:06,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 20:12:06,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:12:06,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:12:06,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 20:12:06,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:12:06,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:12:06,467 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-10-21 20:12:06,467 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 38 states and 42 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:12:06,511 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 38 states and 42 transitions. cyclomatic complexity: 7. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 43 states and 50 transitions. Complement of second has 5 states. [2021-10-21 20:12:06,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 20:12:06,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:12:06,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2021-10-21 20:12:06,513 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 31 letters. Loop has 2 letters. [2021-10-21 20:12:06,513 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:12:06,513 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 33 letters. Loop has 2 letters. [2021-10-21 20:12:06,514 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:12:06,514 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 31 letters. Loop has 4 letters. [2021-10-21 20:12:06,517 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:12:06,517 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 50 transitions. [2021-10-21 20:12:06,518 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:12:06,519 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 40 states and 45 transitions. [2021-10-21 20:12:06,519 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2021-10-21 20:12:06,520 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-10-21 20:12:06,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 45 transitions. [2021-10-21 20:12:06,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:12:06,526 INFO L681 BuchiCegarLoop]: Abstraction has 40 states and 45 transitions. [2021-10-21 20:12:06,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 45 transitions. [2021-10-21 20:12:06,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-10-21 20:12:06,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 40 states have (on average 1.125) internal successors, (45), 39 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:12:06,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 45 transitions. [2021-10-21 20:12:06,531 INFO L704 BuchiCegarLoop]: Abstraction has 40 states and 45 transitions. [2021-10-21 20:12:06,531 INFO L587 BuchiCegarLoop]: Abstraction has 40 states and 45 transitions. [2021-10-21 20:12:06,532 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-21 20:12:06,532 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 45 transitions. [2021-10-21 20:12:06,532 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:12:06,533 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:12:06,533 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:12:06,536 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:12:06,537 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:12:06,537 INFO L791 eck$LassoCheckResult]: Stem: 1394#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(11); 1395#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 1405#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1413#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1406#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1407#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1429#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1428#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1427#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1426#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1425#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1424#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1423#L35-3 assume !(main_~i~0 < 5); 1402#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 1403#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 1390#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1391#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1409#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1422#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1421#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1420#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1419#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1418#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1417#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1416#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1415#L39-3 assume !(main_~i~0 < 5); 1414#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 1408#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 1396#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 1398#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 1400#L44-4 main_~nc_B~0 := 0; 1401#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 1410#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 1392#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 1393#L57-2 [2021-10-21 20:12:06,537 INFO L793 eck$LassoCheckResult]: Loop: 1393#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 1404#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 1393#L57-2 [2021-10-21 20:12:06,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:12:06,538 INFO L82 PathProgramCache]: Analyzing trace with hash 959422888, now seen corresponding path program 1 times [2021-10-21 20:12:06,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:12:06,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876382465] [2021-10-21 20:12:06,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:12:06,539 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:12:06,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:06,565 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:12:06,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:06,603 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:12:06,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:12:06,605 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 1 times [2021-10-21 20:12:06,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:12:06,606 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906400629] [2021-10-21 20:12:06,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:12:06,606 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:12:06,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:06,611 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:12:06,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:06,620 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:12:06,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:12:06,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1412570677, now seen corresponding path program 1 times [2021-10-21 20:12:06,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:12:06,621 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398660722] [2021-10-21 20:12:06,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:12:06,621 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:12:06,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:12:06,676 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-10-21 20:12:06,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:12:06,677 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398660722] [2021-10-21 20:12:06,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398660722] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:12:06,677 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:12:06,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 20:12:06,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748317970] [2021-10-21 20:12:06,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:12:06,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2021-10-21 20:12:06,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:12:06,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:12:06,802 INFO L87 Difference]: Start difference. First operand 40 states and 45 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:12:06,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:12:06,824 INFO L93 Difference]: Finished difference Result 49 states and 55 transitions. [2021-10-21 20:12:06,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 20:12:06,824 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 55 transitions. [2021-10-21 20:12:06,825 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:12:06,826 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 41 states and 45 transitions. [2021-10-21 20:12:06,826 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2021-10-21 20:12:06,826 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-10-21 20:12:06,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 45 transitions. [2021-10-21 20:12:06,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:12:06,826 INFO L681 BuchiCegarLoop]: Abstraction has 41 states and 45 transitions. [2021-10-21 20:12:06,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 45 transitions. [2021-10-21 20:12:06,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2021-10-21 20:12:06,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 40 states have (on average 1.1) internal successors, (44), 39 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) [2021-10-21 20:12:06,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2021-10-21 20:12:06,829 INFO L704 BuchiCegarLoop]: Abstraction has 40 states and 44 transitions. [2021-10-21 20:12:06,829 INFO L587 BuchiCegarLoop]: Abstraction has 40 states and 44 transitions. [2021-10-21 20:12:06,829 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-21 20:12:06,829 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 44 transitions. [2021-10-21 20:12:06,830 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:12:06,830 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:12:06,830 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:12:06,831 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:12:06,831 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:12:06,831 INFO L791 eck$LassoCheckResult]: Stem: 1492#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(11); 1493#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 1503#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1511#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1504#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1505#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1527#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1526#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1525#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1524#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1523#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1522#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1521#L35-3 assume !(main_~i~0 < 5); 1500#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 1501#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 1490#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1491#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1507#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1520#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1519#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1518#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1517#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1516#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1515#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1514#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1513#L39-3 assume !(main_~i~0 < 5); 1512#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 1506#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 1494#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 1495#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 1496#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 1497#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 1498#L44-4 main_~nc_B~0 := 0; 1499#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 1508#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 1488#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 1489#L57-2 [2021-10-21 20:12:06,831 INFO L793 eck$LassoCheckResult]: Loop: 1489#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 1502#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 1489#L57-2 [2021-10-21 20:12:06,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:12:06,832 INFO L82 PathProgramCache]: Analyzing trace with hash 94364173, now seen corresponding path program 1 times [2021-10-21 20:12:06,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:12:06,832 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384846298] [2021-10-21 20:12:06,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:12:06,834 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:12:06,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:12:06,883 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-10-21 20:12:06,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:12:06,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384846298] [2021-10-21 20:12:06,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384846298] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:12:06,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [791305298] [2021-10-21 20:12:06,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:12:06,884 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:12:06,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:06,886 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:12:06,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2021-10-21 20:12:07,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:12:07,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:12:07,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:12:07,224 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-10-21 20:12:07,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [791305298] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:12:07,225 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 20:12:07,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2021-10-21 20:12:07,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316361902] [2021-10-21 20:12:07,226 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:12:07,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:12:07,226 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 2 times [2021-10-21 20:12:07,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:12:07,227 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864386734] [2021-10-21 20:12:07,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:12:07,227 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:12:07,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:07,233 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:12:07,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:07,239 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:12:07,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:12:07,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 20:12:07,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:12:07,342 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. cyclomatic complexity: 7 Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:12:07,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:12:07,371 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2021-10-21 20:12:07,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 20:12:07,372 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 47 transitions. [2021-10-21 20:12:07,373 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:12:07,373 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 42 states and 45 transitions. [2021-10-21 20:12:07,374 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2021-10-21 20:12:07,374 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-10-21 20:12:07,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 45 transitions. [2021-10-21 20:12:07,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:12:07,374 INFO L681 BuchiCegarLoop]: Abstraction has 42 states and 45 transitions. [2021-10-21 20:12:07,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 45 transitions. [2021-10-21 20:12:07,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2021-10-21 20:12:07,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 40 states have (on average 1.075) internal successors, (43), 39 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:12:07,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2021-10-21 20:12:07,381 INFO L704 BuchiCegarLoop]: Abstraction has 40 states and 43 transitions. [2021-10-21 20:12:07,381 INFO L587 BuchiCegarLoop]: Abstraction has 40 states and 43 transitions. [2021-10-21 20:12:07,381 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-10-21 20:12:07,381 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 43 transitions. [2021-10-21 20:12:07,382 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:12:07,382 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:12:07,382 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:12:07,383 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:12:07,384 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:12:07,386 INFO L791 eck$LassoCheckResult]: Stem: 1691#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(11); 1692#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 1702#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1703#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1710#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1726#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1725#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1724#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1723#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1722#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1721#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1720#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1719#L35-3 assume !(main_~i~0 < 5); 1699#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 1700#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 1687#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1688#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1705#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1718#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1717#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1716#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1715#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1714#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1713#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1712#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1711#L39-3 assume !(main_~i~0 < 5); 1709#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 1704#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 1693#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 1694#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 1695#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 1696#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 1697#L44-4 main_~nc_B~0 := 0; 1698#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 1707#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 1708#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 1706#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 1689#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 1690#L57-2 [2021-10-21 20:12:07,388 INFO L793 eck$LassoCheckResult]: Loop: 1690#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 1701#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 1690#L57-2 [2021-10-21 20:12:07,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:12:07,389 INFO L82 PathProgramCache]: Analyzing trace with hash 489706120, now seen corresponding path program 1 times [2021-10-21 20:12:07,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:12:07,389 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015295774] [2021-10-21 20:12:07,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:12:07,389 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:12:07,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:07,423 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:12:07,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:07,471 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:12:07,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:12:07,472 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 3 times [2021-10-21 20:12:07,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:12:07,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19921333] [2021-10-21 20:12:07,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:12:07,472 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:12:07,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:07,477 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:12:07,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:07,480 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:12:07,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:12:07,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1838818645, now seen corresponding path program 1 times [2021-10-21 20:12:07,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:12:07,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644729437] [2021-10-21 20:12:07,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:12:07,482 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:12:07,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:07,525 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:12:07,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:07,582 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:12:16,061 WARN L207 SmtUtils]: Spent 8.34 s on a formula simplification. DAG size of input: 296 DAG size of output: 223 [2021-10-21 20:12:17,135 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:12:17,135 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:12:17,135 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:12:17,135 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:12:17,136 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:12:17,136 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:17,136 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:12:17,136 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:12:17,136 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-2.i_Iteration12_Lasso [2021-10-21 20:12:17,136 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:12:17,136 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:12:17,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:17,141 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:17,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:17,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:17,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:17,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:17,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:17,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:17,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:17,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:17,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:17,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:17,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:17,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:17,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:17,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:17,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:17,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:17,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:17,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:18,300 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:12:18,300 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:12:18,301 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:18,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:18,303 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:18,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2021-10-21 20:12:18,304 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:18,311 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:18,311 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:12:18,311 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:18,311 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:18,311 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:18,312 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:12:18,312 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:12:18,313 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:18,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2021-10-21 20:12:18,332 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:18,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:18,333 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:18,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2021-10-21 20:12:18,334 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:18,341 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:18,341 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:12:18,341 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:18,341 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:18,341 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:18,342 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:12:18,342 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:12:18,343 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:18,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Ended with exit code 0 [2021-10-21 20:12:18,362 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:18,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:18,363 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:18,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2021-10-21 20:12:18,364 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:18,371 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:18,371 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:12:18,371 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:18,371 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:18,371 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:18,372 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:12:18,372 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:12:18,373 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:18,392 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Ended with exit code 0 [2021-10-21 20:12:18,392 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:18,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:18,393 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:18,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2021-10-21 20:12:18,395 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:18,401 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:18,401 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:12:18,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:18,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:18,402 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:18,402 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:12:18,402 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:12:18,405 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:18,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Forceful destruction successful, exit code 0 [2021-10-21 20:12:18,424 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:18,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:18,425 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:18,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2021-10-21 20:12:18,426 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:18,433 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:18,433 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:18,433 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:18,434 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:18,435 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:12:18,435 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:18,437 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:18,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Ended with exit code 0 [2021-10-21 20:12:18,457 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:18,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:18,457 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:18,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2021-10-21 20:12:18,458 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 [2021-10-21 20:12:18,465 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:18,465 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:12:18,465 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:18,465 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:18,466 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:18,466 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:12:18,466 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:12:18,467 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:18,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Ended with exit code 0 [2021-10-21 20:12:18,486 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:18,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:18,487 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:18,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2021-10-21 20:12:18,488 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:18,497 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:18,497 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:18,497 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:18,498 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:18,499 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:12:18,499 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:18,517 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:18,539 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Ended with exit code 0 [2021-10-21 20:12:18,539 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:18,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:18,540 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:18,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2021-10-21 20:12:18,541 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 [2021-10-21 20:12:18,548 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:18,548 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:18,548 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:18,548 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:18,549 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:12:18,550 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:18,552 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:18,571 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Ended with exit code 0 [2021-10-21 20:12:18,572 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:18,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:18,574 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:18,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2021-10-21 20:12:18,575 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 [2021-10-21 20:12:18,582 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:18,582 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:18,582 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:18,582 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:18,584 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:12:18,584 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:18,587 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:18,606 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Ended with exit code 0 [2021-10-21 20:12:18,606 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:18,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:18,607 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:18,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2021-10-21 20:12:18,608 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:18,615 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:18,615 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:18,615 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:18,615 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:18,616 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:12:18,616 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:18,618 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:18,638 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Ended with exit code 0 [2021-10-21 20:12:18,638 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:18,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:18,639 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:18,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2021-10-21 20:12:18,640 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:18,647 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:18,647 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:18,647 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:18,647 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:18,648 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:12:18,648 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:18,650 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:18,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Forceful destruction successful, exit code 0 [2021-10-21 20:12:18,671 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:18,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:18,671 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:18,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2021-10-21 20:12:18,673 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:18,680 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:18,680 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:18,680 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:18,680 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:18,688 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:12:18,688 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:18,706 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:12:18,755 INFO L443 ModelExtractionUtils]: Simplification made 19 calls to the SMT solver. [2021-10-21 20:12:18,755 INFO L444 ModelExtractionUtils]: 4 out of 31 variables were initially zero. Simplification set additionally 24 variables to zero. [2021-10-21 20:12:18,755 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:18,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:18,756 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:18,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2021-10-21 20:12:18,757 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:12:18,766 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 20:12:18,766 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:12:18,766 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_4, ULTIMATE.start_main_~j~0) = 1*v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_4 - 2*ULTIMATE.start_main_~j~0 Supporting invariants [] [2021-10-21 20:12:18,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Forceful destruction successful, exit code 0 [2021-10-21 20:12:18,880 INFO L297 tatePredicateManager]: 30 out of 32 supporting invariants were superfluous and have been removed [2021-10-21 20:12:18,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:12:18,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:12:18,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-21 20:12:18,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:12:19,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:12:19,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-21 20:12:19,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:12:19,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:12:19,392 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.5 stem predicates 2 loop predicates [2021-10-21 20:12:19,393 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 43 transitions. cyclomatic complexity: 6 Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:12:19,486 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 43 transitions. cyclomatic complexity: 6. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 54 states and 62 transitions. Complement of second has 10 states. [2021-10-21 20:12:19,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 5 stem states 1 non-accepting loop states 2 accepting loop states [2021-10-21 20:12:19,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:12:19,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 30 transitions. [2021-10-21 20:12:19,487 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 30 transitions. Stem has 38 letters. Loop has 2 letters. [2021-10-21 20:12:19,487 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:12:19,487 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 30 transitions. Stem has 40 letters. Loop has 2 letters. [2021-10-21 20:12:19,488 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:12:19,488 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 30 transitions. Stem has 38 letters. Loop has 4 letters. [2021-10-21 20:12:19,488 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:12:19,488 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 62 transitions. [2021-10-21 20:12:19,489 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-10-21 20:12:19,489 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 54 states and 62 transitions. [2021-10-21 20:12:19,490 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2021-10-21 20:12:19,490 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2021-10-21 20:12:19,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 62 transitions. [2021-10-21 20:12:19,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:12:19,490 INFO L681 BuchiCegarLoop]: Abstraction has 54 states and 62 transitions. [2021-10-21 20:12:19,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 62 transitions. [2021-10-21 20:12:19,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 50. [2021-10-21 20:12:19,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 50 states have (on average 1.14) internal successors, (57), 49 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:12:19,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 57 transitions. [2021-10-21 20:12:19,493 INFO L704 BuchiCegarLoop]: Abstraction has 50 states and 57 transitions. [2021-10-21 20:12:19,493 INFO L587 BuchiCegarLoop]: Abstraction has 50 states and 57 transitions. [2021-10-21 20:12:19,494 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-10-21 20:12:19,494 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 57 transitions. [2021-10-21 20:12:19,494 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-10-21 20:12:19,494 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:12:19,494 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:12:19,495 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:12:19,495 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:12:19,496 INFO L791 eck$LassoCheckResult]: Stem: 2076#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(11); 2077#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 2089#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2090#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2098#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2121#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2120#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2119#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2118#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2112#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2111#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2110#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2109#L35-3 assume !(main_~i~0 < 5); 2084#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 2085#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 2074#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2075#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2092#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2117#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2115#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2113#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2108#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2106#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2105#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2104#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2103#L39-3 assume !(main_~i~0 < 5); 2099#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 2091#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 2078#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2079#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 2080#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2081#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 2082#L44-4 main_~nc_B~0 := 0; 2083#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 2095#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 2096#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 2093#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 2094#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 2107#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 2100#L57 [2021-10-21 20:12:19,496 INFO L793 eck$LassoCheckResult]: Loop: 2100#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 2101#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 2100#L57 [2021-10-21 20:12:19,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:12:19,496 INFO L82 PathProgramCache]: Analyzing trace with hash -1998979383, now seen corresponding path program 1 times [2021-10-21 20:12:19,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:12:19,497 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132894491] [2021-10-21 20:12:19,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:12:19,497 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:12:19,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:19,533 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:12:19,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:19,564 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:12:19,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:12:19,564 INFO L82 PathProgramCache]: Analyzing trace with hash 3708, now seen corresponding path program 1 times [2021-10-21 20:12:19,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:12:19,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678506993] [2021-10-21 20:12:19,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:12:19,565 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:12:19,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:19,569 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:12:19,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:19,573 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:12:19,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:12:19,574 INFO L82 PathProgramCache]: Analyzing trace with hash -1168803004, now seen corresponding path program 1 times [2021-10-21 20:12:19,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:12:19,574 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116311428] [2021-10-21 20:12:19,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:12:19,574 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:12:19,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Forceful destruction successful, exit code 0 [2021-10-21 20:12:19,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:12:19,668 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-10-21 20:12:19,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:12:19,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116311428] [2021-10-21 20:12:19,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116311428] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:12:19,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383074273] [2021-10-21 20:12:19,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:12:19,669 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:12:19,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:19,670 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:12:19,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2021-10-21 20:12:19,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:12:19,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 20:12:19,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:12:20,028 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-10-21 20:12:20,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383074273] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:12:20,029 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:12:20,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 11 [2021-10-21 20:12:20,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037184720] [2021-10-21 20:12:20,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:12:20,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-21 20:12:20,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-10-21 20:12:20,125 INFO L87 Difference]: Start difference. First operand 50 states and 57 transitions. cyclomatic complexity: 12 Second operand has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:12:20,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:12:20,284 INFO L93 Difference]: Finished difference Result 74 states and 83 transitions. [2021-10-21 20:12:20,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-21 20:12:20,285 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 74 states and 83 transitions. [2021-10-21 20:12:20,286 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-10-21 20:12:20,287 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 74 states to 53 states and 60 transitions. [2021-10-21 20:12:20,287 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2021-10-21 20:12:20,287 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41 [2021-10-21 20:12:20,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 60 transitions. [2021-10-21 20:12:20,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:12:20,287 INFO L681 BuchiCegarLoop]: Abstraction has 53 states and 60 transitions. [2021-10-21 20:12:20,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 60 transitions. [2021-10-21 20:12:20,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2021-10-21 20:12:20,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 52 states have (on average 1.1346153846153846) internal successors, (59), 51 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:12:20,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 59 transitions. [2021-10-21 20:12:20,289 INFO L704 BuchiCegarLoop]: Abstraction has 52 states and 59 transitions. [2021-10-21 20:12:20,289 INFO L587 BuchiCegarLoop]: Abstraction has 52 states and 59 transitions. [2021-10-21 20:12:20,290 INFO L425 BuchiCegarLoop]: ======== Iteration 14============ [2021-10-21 20:12:20,290 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 59 transitions. [2021-10-21 20:12:20,290 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-10-21 20:12:20,290 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:12:20,290 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:12:20,291 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:12:20,291 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:12:20,291 INFO L791 eck$LassoCheckResult]: Stem: 2347#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(11); 2348#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 2361#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2364#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2372#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2393#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2392#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2391#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2390#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2389#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2388#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2387#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2386#L35-3 assume !(main_~i~0 < 5); 2355#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 2356#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 2365#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2367#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2345#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2346#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2385#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2384#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2382#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2380#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2378#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2376#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2375#L39-3 assume !(main_~i~0 < 5); 2373#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 2366#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 2349#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2350#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 2351#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2352#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 2363#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2362#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 2353#L44-4 main_~nc_B~0 := 0; 2354#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 2371#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 2383#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 2381#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 2379#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 2377#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 2358#L57 [2021-10-21 20:12:20,291 INFO L793 eck$LassoCheckResult]: Loop: 2358#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 2357#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 2358#L57 [2021-10-21 20:12:20,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:12:20,291 INFO L82 PathProgramCache]: Analyzing trace with hash -454347388, now seen corresponding path program 2 times [2021-10-21 20:12:20,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:12:20,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646277679] [2021-10-21 20:12:20,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:12:20,292 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:12:20,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:12:20,362 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-10-21 20:12:20,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:12:20,363 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646277679] [2021-10-21 20:12:20,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646277679] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:12:20,363 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365063774] [2021-10-21 20:12:20,363 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 20:12:20,363 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:12:20,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:20,364 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:12:20,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2021-10-21 20:12:20,558 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 20:12:20,558 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:12:20,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 20:12:20,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:12:20,718 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-10-21 20:12:20,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [365063774] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:12:20,719 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:12:20,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-10-21 20:12:20,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889203145] [2021-10-21 20:12:20,719 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:12:20,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:12:20,720 INFO L82 PathProgramCache]: Analyzing trace with hash 3708, now seen corresponding path program 2 times [2021-10-21 20:12:20,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:12:20,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143158142] [2021-10-21 20:12:20,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:12:20,721 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:12:20,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:20,726 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:12:20,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:20,729 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:12:20,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:12:20,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 20:12:20,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-10-21 20:12:20,823 INFO L87 Difference]: Start difference. First operand 52 states and 59 transitions. cyclomatic complexity: 12 Second operand has 10 states, 10 states have (on average 3.4) internal successors, (34), 10 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) [2021-10-21 20:12:20,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:12:20,865 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2021-10-21 20:12:20,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 20:12:20,865 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 51 transitions. [2021-10-21 20:12:20,866 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:12:20,867 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 46 states and 49 transitions. [2021-10-21 20:12:20,867 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2021-10-21 20:12:20,867 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-10-21 20:12:20,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 49 transitions. [2021-10-21 20:12:20,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:12:20,867 INFO L681 BuchiCegarLoop]: Abstraction has 46 states and 49 transitions. [2021-10-21 20:12:20,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 49 transitions. [2021-10-21 20:12:20,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2021-10-21 20:12:20,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 44 states have (on average 1.0681818181818181) internal successors, (47), 43 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) [2021-10-21 20:12:20,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2021-10-21 20:12:20,870 INFO L704 BuchiCegarLoop]: Abstraction has 44 states and 47 transitions. [2021-10-21 20:12:20,870 INFO L587 BuchiCegarLoop]: Abstraction has 44 states and 47 transitions. [2021-10-21 20:12:20,870 INFO L425 BuchiCegarLoop]: ======== Iteration 15============ [2021-10-21 20:12:20,870 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 44 states and 47 transitions. [2021-10-21 20:12:20,871 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:12:20,871 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:12:20,871 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:12:20,872 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:12:20,872 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:12:20,872 INFO L791 eck$LassoCheckResult]: Stem: 2580#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(11); 2581#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 2591#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2594#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2602#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2619#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2618#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2617#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2616#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2615#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2614#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2613#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2612#L35-3 assume !(main_~i~0 < 5); 2588#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 2589#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 2578#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2579#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2596#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2611#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2610#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2609#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2608#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2607#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2606#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2605#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2604#L39-3 assume !(main_~i~0 < 5); 2603#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 2595#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 2582#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2583#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 2584#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2585#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 2593#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2592#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 2586#L44-4 main_~nc_B~0 := 0; 2587#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 2600#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 2601#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 2598#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 2599#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 2597#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 2576#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 2577#L57-2 [2021-10-21 20:12:20,872 INFO L793 eck$LassoCheckResult]: Loop: 2577#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 2590#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 2577#L57-2 [2021-10-21 20:12:20,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:12:20,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1199820568, now seen corresponding path program 2 times [2021-10-21 20:12:20,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:12:20,873 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184091752] [2021-10-21 20:12:20,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:12:20,873 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:12:20,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:20,891 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:12:20,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:20,913 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:12:20,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:12:20,914 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 4 times [2021-10-21 20:12:20,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:12:20,914 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812922587] [2021-10-21 20:12:20,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:12:20,914 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:12:20,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:20,919 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:12:20,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:20,922 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:12:20,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:12:20,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1976327925, now seen corresponding path program 2 times [2021-10-21 20:12:20,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:12:20,923 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224755466] [2021-10-21 20:12:20,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:12:20,923 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:12:20,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:20,945 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:12:20,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:20,997 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:12:29,227 WARN L207 SmtUtils]: Spent 8.15 s on a formula simplification. DAG size of input: 320 DAG size of output: 246 [2021-10-21 20:12:31,210 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:12:31,210 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:12:31,210 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:12:31,210 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:12:31,210 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:12:31,211 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:31,211 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:12:31,211 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:12:31,211 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-2.i_Iteration15_Lasso [2021-10-21 20:12:31,211 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:12:31,211 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:12:31,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:31,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:31,225 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:31,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:31,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:31,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:31,233 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:31,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:31,236 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:31,238 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:32,629 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:32,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:32,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:32,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:32,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:32,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:32,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:32,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:32,642 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:32,657 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:33,019 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:12:33,020 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:12:33,020 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:33,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:33,022 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:33,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Waiting until timeout for monitored process [2021-10-21 20:12:33,023 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:33,030 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:33,030 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:12:33,030 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:33,030 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:33,030 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:33,030 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:12:33,030 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:12:33,031 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:33,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Ended with exit code 0 [2021-10-21 20:12:33,050 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:33,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:33,051 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:33,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process [2021-10-21 20:12:33,052 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:33,059 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:33,059 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:12:33,059 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:33,059 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:33,059 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:33,059 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:12:33,059 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:12:33,060 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:33,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Ended with exit code 0 [2021-10-21 20:12:33,080 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:33,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:33,081 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:33,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2021-10-21 20:12:33,083 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 [2021-10-21 20:12:33,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:33,090 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:12:33,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:33,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:33,090 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:33,090 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:12:33,090 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:12:33,100 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:33,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Forceful destruction successful, exit code 0 [2021-10-21 20:12:33,119 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:33,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:33,120 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:33,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Waiting until timeout for monitored process [2021-10-21 20:12:33,121 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:33,128 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:33,128 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:12:33,128 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:33,128 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:33,128 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:33,128 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:12:33,129 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:12:33,129 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:33,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Forceful destruction successful, exit code 0 [2021-10-21 20:12:33,149 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:33,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:33,150 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:33,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Waiting until timeout for monitored process [2021-10-21 20:12:33,151 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:33,158 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:33,158 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:12:33,159 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:33,159 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:33,159 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:33,159 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:12:33,159 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:12:33,174 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:33,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Forceful destruction successful, exit code 0 [2021-10-21 20:12:33,194 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:33,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:33,194 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:33,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Waiting until timeout for monitored process [2021-10-21 20:12:33,196 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 [2021-10-21 20:12:33,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:33,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:33,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:33,204 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:33,205 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:12:33,205 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:33,207 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:33,226 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Ended with exit code 0 [2021-10-21 20:12:33,226 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:33,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:33,227 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:33,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Waiting until timeout for monitored process [2021-10-21 20:12:33,228 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 [2021-10-21 20:12:33,236 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:33,236 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:33,236 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:33,236 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:33,237 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:12:33,237 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:33,247 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:33,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Ended with exit code 0 [2021-10-21 20:12:33,267 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:33,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:33,267 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:33,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Waiting until timeout for monitored process [2021-10-21 20:12:33,268 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 [2021-10-21 20:12:33,275 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:33,275 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:12:33,275 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:33,275 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:33,275 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:33,276 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:12:33,276 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:12:33,277 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:33,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Forceful destruction successful, exit code 0 [2021-10-21 20:12:33,297 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:33,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:33,298 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:33,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Waiting until timeout for monitored process [2021-10-21 20:12:33,299 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:33,305 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:33,305 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:12:33,305 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:33,306 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:33,306 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:33,306 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:12:33,306 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:12:33,307 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:33,326 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Ended with exit code 0 [2021-10-21 20:12:33,326 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:33,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:33,327 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:33,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Waiting until timeout for monitored process [2021-10-21 20:12:33,328 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 [2021-10-21 20:12:33,335 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:33,335 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:12:33,335 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:33,336 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:33,336 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:33,336 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:12:33,336 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:12:33,337 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:33,356 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Ended with exit code 0 [2021-10-21 20:12:33,356 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:33,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:33,357 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:33,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Waiting until timeout for monitored process [2021-10-21 20:12:33,358 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:33,364 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:33,364 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:33,365 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:33,365 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:33,365 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:12:33,365 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:33,367 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:33,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Forceful destruction successful, exit code 0 [2021-10-21 20:12:33,387 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:33,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:33,387 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:33,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Waiting until timeout for monitored process [2021-10-21 20:12:33,388 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:33,395 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:33,395 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:33,395 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:33,395 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:33,396 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:12:33,396 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:33,398 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:33,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Forceful destruction successful, exit code 0 [2021-10-21 20:12:33,417 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:33,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:33,418 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:33,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Waiting until timeout for monitored process [2021-10-21 20:12:33,419 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:33,426 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:33,426 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:33,426 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:33,426 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:33,427 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:12:33,428 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:33,430 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:33,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Ended with exit code 0 [2021-10-21 20:12:33,449 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:33,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:33,450 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:33,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Waiting until timeout for monitored process [2021-10-21 20:12:33,451 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:33,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:33,458 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:33,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:33,458 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:33,459 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:12:33,459 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:33,461 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:33,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Ended with exit code 0 [2021-10-21 20:12:33,481 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:33,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:33,481 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:33,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Waiting until timeout for monitored process [2021-10-21 20:12:33,484 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:33,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:33,490 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-10-21 20:12:33,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:33,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:33,491 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-10-21 20:12:33,492 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:33,494 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:33,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Ended with exit code 0 [2021-10-21 20:12:33,513 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:33,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:33,516 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:33,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Waiting until timeout for monitored process [2021-10-21 20:12:33,517 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:33,524 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:33,524 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:33,524 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:33,524 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:33,525 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:12:33,525 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:33,528 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:33,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Ended with exit code 0 [2021-10-21 20:12:33,547 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:33,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:33,548 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:33,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Waiting until timeout for monitored process [2021-10-21 20:12:33,549 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:33,556 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:33,556 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:33,556 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:33,556 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:33,557 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:12:33,557 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:33,559 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:33,578 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Ended with exit code 0 [2021-10-21 20:12:33,578 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:33,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:33,579 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:33,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Waiting until timeout for monitored process [2021-10-21 20:12:33,580 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 [2021-10-21 20:12:33,587 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:33,587 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:33,587 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:33,587 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:33,588 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:12:33,588 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:33,591 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:33,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Forceful destruction successful, exit code 0 [2021-10-21 20:12:33,618 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:33,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:33,619 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:33,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Waiting until timeout for monitored process [2021-10-21 20:12:33,620 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:33,626 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:33,627 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2021-10-21 20:12:33,627 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:33,627 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:33,630 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-10-21 20:12:33,630 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:33,638 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:33,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Forceful destruction successful, exit code 0 [2021-10-21 20:12:33,657 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:33,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:33,659 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:33,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Waiting until timeout for monitored process [2021-10-21 20:12:33,660 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 [2021-10-21 20:12:33,667 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:33,667 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:33,667 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:33,667 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:33,669 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:12:33,669 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:33,690 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:33,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Forceful destruction successful, exit code 0 [2021-10-21 20:12:33,709 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:33,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:33,710 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:33,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Waiting until timeout for monitored process [2021-10-21 20:12:33,711 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 [2021-10-21 20:12:33,718 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:33,718 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-10-21 20:12:33,718 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:33,718 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:33,719 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-10-21 20:12:33,719 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:33,722 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:33,741 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Ended with exit code 0 [2021-10-21 20:12:33,741 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:33,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:33,742 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:33,764 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:33,773 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:33,773 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:33,773 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:33,773 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:33,775 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:12:33,775 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:33,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Waiting until timeout for monitored process [2021-10-21 20:12:33,796 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:33,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Forceful destruction successful, exit code 0 [2021-10-21 20:12:33,829 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:33,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:33,830 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:33,832 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:33,840 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:33,840 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:33,841 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:33,841 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:33,842 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:12:33,842 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:33,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Waiting until timeout for monitored process [2021-10-21 20:12:33,856 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:33,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Forceful destruction successful, exit code 0 [2021-10-21 20:12:33,887 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:33,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:33,889 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:33,893 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:33,902 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:33,902 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:33,903 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:33,903 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:33,912 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:12:33,912 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:33,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Waiting until timeout for monitored process [2021-10-21 20:12:33,934 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:12:34,020 INFO L443 ModelExtractionUtils]: Simplification made 35 calls to the SMT solver. [2021-10-21 20:12:34,020 INFO L444 ModelExtractionUtils]: 1 out of 31 variables were initially zero. Simplification set additionally 27 variables to zero. [2021-10-21 20:12:34,020 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:34,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:34,024 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:34,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Waiting until timeout for monitored process [2021-10-21 20:12:34,025 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:12:34,033 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 20:12:34,033 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:12:34,033 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~nc_A~0) = -1*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~nc_A~0 Supporting invariants [] [2021-10-21 20:12:34,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Forceful destruction successful, exit code 0 [2021-10-21 20:12:34,246 INFO L297 tatePredicateManager]: 47 out of 47 supporting invariants were superfluous and have been removed [2021-10-21 20:12:34,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:12:34,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:12:34,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:12:34,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:12:34,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:12:34,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:12:34,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:12:34,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:12:34,434 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 20:12:34,434 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 44 states and 47 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 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) [2021-10-21 20:12:34,445 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 44 states and 47 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 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) Result 48 states and 53 transitions. Complement of second has 5 states. [2021-10-21 20:12:34,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 20:12:34,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 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) [2021-10-21 20:12:34,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 22 transitions. [2021-10-21 20:12:34,446 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 42 letters. Loop has 2 letters. [2021-10-21 20:12:34,446 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:12:34,447 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 44 letters. Loop has 2 letters. [2021-10-21 20:12:34,447 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:12:34,447 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 42 letters. Loop has 4 letters. [2021-10-21 20:12:34,447 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:12:34,447 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 53 transitions. [2021-10-21 20:12:34,448 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:12:34,448 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 48 states and 53 transitions. [2021-10-21 20:12:34,448 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2021-10-21 20:12:34,448 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2021-10-21 20:12:34,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 53 transitions. [2021-10-21 20:12:34,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:12:34,449 INFO L681 BuchiCegarLoop]: Abstraction has 48 states and 53 transitions. [2021-10-21 20:12:34,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 53 transitions. [2021-10-21 20:12:34,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2021-10-21 20:12:34,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 48 states have (on average 1.1041666666666667) internal successors, (53), 47 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) [2021-10-21 20:12:34,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2021-10-21 20:12:34,451 INFO L704 BuchiCegarLoop]: Abstraction has 48 states and 53 transitions. [2021-10-21 20:12:34,451 INFO L587 BuchiCegarLoop]: Abstraction has 48 states and 53 transitions. [2021-10-21 20:12:34,451 INFO L425 BuchiCegarLoop]: ======== Iteration 16============ [2021-10-21 20:12:34,451 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 53 transitions. [2021-10-21 20:12:34,452 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:12:34,452 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:12:34,452 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:12:34,452 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:12:34,452 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:12:34,453 INFO L791 eck$LassoCheckResult]: Stem: 3013#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(11); 3014#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 3028#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3038#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3030#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3031#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3056#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3055#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3054#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3053#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3052#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3051#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3050#L35-3 assume !(main_~i~0 < 5); 3021#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 3022#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 3009#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3010#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3033#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3049#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3048#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3047#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3046#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3044#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3043#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3042#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3040#L39-3 assume !(main_~i~0 < 5); 3039#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 3032#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 3015#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 3016#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 3017#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 3018#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 3045#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 3029#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 3019#L44-4 main_~nc_B~0 := 0; 3020#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 3035#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 3036#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 3037#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 3041#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 3034#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 3011#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 3012#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 3027#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 3023#L57-2 [2021-10-21 20:12:34,453 INFO L793 eck$LassoCheckResult]: Loop: 3023#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 3024#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 3023#L57-2 [2021-10-21 20:12:34,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:12:34,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1976327923, now seen corresponding path program 2 times [2021-10-21 20:12:34,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:12:34,453 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665354780] [2021-10-21 20:12:34,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:12:34,467 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:12:34,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:34,493 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:12:34,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:34,517 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:12:34,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:12:34,518 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 5 times [2021-10-21 20:12:34,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:12:34,518 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222189089] [2021-10-21 20:12:34,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:12:34,519 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:12:34,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:34,523 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:12:34,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:34,525 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:12:34,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:12:34,526 INFO L82 PathProgramCache]: Analyzing trace with hash -875586576, now seen corresponding path program 1 times [2021-10-21 20:12:34,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:12:34,526 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240872519] [2021-10-21 20:12:34,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:12:34,527 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:12:34,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:34,555 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:12:34,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Forceful destruction successful, exit code 0 [2021-10-21 20:12:34,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:34,590 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:12:39,691 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:12:39,691 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:12:39,691 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:12:39,691 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:12:39,691 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:12:39,691 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:39,691 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:12:39,691 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:12:39,691 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-2.i_Iteration16_Lasso [2021-10-21 20:12:39,691 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:12:39,692 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:12:39,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:40,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:40,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:40,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:40,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:40,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:40,488 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:40,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:40,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:40,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:40,494 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:40,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:40,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:40,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:40,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:40,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:40,504 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:40,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:40,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:40,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:41,103 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:12:41,103 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:12:41,103 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:41,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:41,104 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:41,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Waiting until timeout for monitored process [2021-10-21 20:12:41,105 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:41,113 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:41,113 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:12:41,113 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:41,113 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:41,113 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:41,113 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:12:41,113 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:12:41,114 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:41,133 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Ended with exit code 0 [2021-10-21 20:12:41,133 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:41,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:41,134 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:41,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Waiting until timeout for monitored process [2021-10-21 20:12:41,135 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:41,142 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:41,142 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:41,142 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:41,142 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:41,143 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:12:41,143 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:41,145 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:41,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Forceful destruction successful, exit code 0 [2021-10-21 20:12:41,164 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:41,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:41,165 INFO L229 MonitoredProcess]: Starting monitored process 115 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:41,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Waiting until timeout for monitored process [2021-10-21 20:12:41,166 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:41,173 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:41,173 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:41,173 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:41,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:41,179 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:12:41,179 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:41,192 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:12:41,227 INFO L443 ModelExtractionUtils]: Simplification made 23 calls to the SMT solver. [2021-10-21 20:12:41,227 INFO L444 ModelExtractionUtils]: 10 out of 31 variables were initially zero. Simplification set additionally 15 variables to zero. [2021-10-21 20:12:41,227 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:41,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:41,228 INFO L229 MonitoredProcess]: Starting monitored process 116 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:41,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Waiting until timeout for monitored process [2021-10-21 20:12:41,229 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:12:41,237 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-10-21 20:12:41,237 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:12:41,238 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_6) = -1*ULTIMATE.start_main_~i~0 + 1*v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_6 Supporting invariants [1*v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_6 - 1*v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_6 + 1*ULTIMATE.start_main_~#string_A~0.offset >= 0] [2021-10-21 20:12:41,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Ended with exit code 0 [2021-10-21 20:12:41,483 INFO L297 tatePredicateManager]: 48 out of 49 supporting invariants were superfluous and have been removed [2021-10-21 20:12:41,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:12:41,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Forceful destruction successful, exit code 0 [2021-10-21 20:12:41,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:12:41,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-21 20:12:41,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:12:41,613 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-21 20:12:41,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2021-10-21 20:12:41,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-10-21 20:12:42,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:12:42,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 20:12:42,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:12:42,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:12:42,573 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.8 stem predicates 2 loop predicates [2021-10-21 20:12:42,574 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 48 states and 53 transitions. cyclomatic complexity: 9 Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 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) [2021-10-21 20:12:42,778 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 48 states and 53 transitions. cyclomatic complexity: 9. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 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) Result 63 states and 73 transitions. Complement of second has 10 states. [2021-10-21 20:12:42,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 6 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 20:12:42,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 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) [2021-10-21 20:12:42,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 53 transitions. [2021-10-21 20:12:42,779 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 53 transitions. Stem has 44 letters. Loop has 2 letters. [2021-10-21 20:12:42,779 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:12:42,779 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 53 transitions. Stem has 46 letters. Loop has 2 letters. [2021-10-21 20:12:42,779 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:12:42,779 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 53 transitions. Stem has 44 letters. Loop has 4 letters. [2021-10-21 20:12:42,779 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:12:42,780 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 73 transitions. [2021-10-21 20:12:42,780 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:12:42,781 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 63 states and 73 transitions. [2021-10-21 20:12:42,781 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43 [2021-10-21 20:12:42,781 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2021-10-21 20:12:42,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 73 transitions. [2021-10-21 20:12:42,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:12:42,781 INFO L681 BuchiCegarLoop]: Abstraction has 63 states and 73 transitions. [2021-10-21 20:12:42,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states and 73 transitions. [2021-10-21 20:12:42,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 52. [2021-10-21 20:12:42,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 52 states have (on average 1.1346153846153846) internal successors, (59), 51 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:12:42,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 59 transitions. [2021-10-21 20:12:42,783 INFO L704 BuchiCegarLoop]: Abstraction has 52 states and 59 transitions. [2021-10-21 20:12:42,784 INFO L587 BuchiCegarLoop]: Abstraction has 52 states and 59 transitions. [2021-10-21 20:12:42,784 INFO L425 BuchiCegarLoop]: ======== Iteration 17============ [2021-10-21 20:12:42,784 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 59 transitions. [2021-10-21 20:12:42,784 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:12:42,784 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:12:42,784 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:12:42,787 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:12:42,787 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:12:42,787 INFO L791 eck$LassoCheckResult]: Stem: 3501#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(11); 3502#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 3514#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3517#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3524#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3543#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3542#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3541#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3540#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3539#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3538#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3537#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3536#L35-3 assume !(main_~i~0 < 5); 3509#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 3510#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 3499#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3500#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3519#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3535#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3534#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3533#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3532#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3531#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3530#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3529#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3528#L39-3 assume !(main_~i~0 < 5); 3525#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 3518#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 3503#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 3504#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 3505#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 3506#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 3516#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 3515#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 3507#L44-4 main_~nc_B~0 := 0; 3508#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 3521#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 3522#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 3523#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 3527#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 3520#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 3497#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 3498#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 3512#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 3526#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 3546#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 3545#L57-2 [2021-10-21 20:12:42,787 INFO L793 eck$LassoCheckResult]: Loop: 3545#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 3544#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 3545#L57-2 [2021-10-21 20:12:42,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:12:42,788 INFO L82 PathProgramCache]: Analyzing trace with hash -875586574, now seen corresponding path program 3 times [2021-10-21 20:12:42,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:12:42,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752266278] [2021-10-21 20:12:42,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:12:42,788 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:12:42,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:42,817 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:12:42,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:42,854 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:12:42,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:12:42,855 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 6 times [2021-10-21 20:12:42,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:12:42,855 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021133392] [2021-10-21 20:12:42,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:12:42,855 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:12:42,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:42,861 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:12:42,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:42,864 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:12:42,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:12:42,865 INFO L82 PathProgramCache]: Analyzing trace with hash 374894997, now seen corresponding path program 2 times [2021-10-21 20:12:42,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:12:42,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153447910] [2021-10-21 20:12:42,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:12:42,866 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:12:42,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:12:42,983 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-10-21 20:12:42,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:12:42,983 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153447910] [2021-10-21 20:12:42,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153447910] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:12:42,983 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084013496] [2021-10-21 20:12:42,983 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 20:12:42,984 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:12:42,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:42,985 INFO L229 MonitoredProcess]: Starting monitored process 117 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:12:43,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Waiting until timeout for monitored process [2021-10-21 20:12:43,271 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 20:12:43,271 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:12:43,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 20:12:43,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:12:43,482 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-10-21 20:12:43,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1084013496] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:12:43,482 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:12:43,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-10-21 20:12:43,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246578861] [2021-10-21 20:12:43,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:12:43,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-21 20:12:43,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-10-21 20:12:43,562 INFO L87 Difference]: Start difference. First operand 52 states and 59 transitions. cyclomatic complexity: 12 Second operand has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 12 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:12:43,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:12:43,655 INFO L93 Difference]: Finished difference Result 73 states and 83 transitions. [2021-10-21 20:12:43,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 20:12:43,655 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 73 states and 83 transitions. [2021-10-21 20:12:43,656 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:12:43,657 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 73 states to 55 states and 62 transitions. [2021-10-21 20:12:43,657 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2021-10-21 20:12:43,657 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2021-10-21 20:12:43,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 62 transitions. [2021-10-21 20:12:43,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:12:43,658 INFO L681 BuchiCegarLoop]: Abstraction has 55 states and 62 transitions. [2021-10-21 20:12:43,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 62 transitions. [2021-10-21 20:12:43,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2021-10-21 20:12:43,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 54 states have (on average 1.1296296296296295) internal successors, (61), 53 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:12:43,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 61 transitions. [2021-10-21 20:12:43,660 INFO L704 BuchiCegarLoop]: Abstraction has 54 states and 61 transitions. [2021-10-21 20:12:43,660 INFO L587 BuchiCegarLoop]: Abstraction has 54 states and 61 transitions. [2021-10-21 20:12:43,660 INFO L425 BuchiCegarLoop]: ======== Iteration 18============ [2021-10-21 20:12:43,660 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 61 transitions. [2021-10-21 20:12:43,661 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:12:43,661 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:12:43,661 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:12:43,662 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:12:43,662 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:12:43,662 INFO L791 eck$LassoCheckResult]: Stem: 3790#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(11); 3791#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 3805#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3808#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3815#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3836#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3835#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3834#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3832#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3830#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3828#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3826#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3825#L35-3 assume !(main_~i~0 < 5); 3798#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 3799#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 3786#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3787#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3810#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3833#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3831#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3829#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3827#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3822#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3821#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3820#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3819#L39-3 assume !(main_~i~0 < 5); 3816#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 3809#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 3792#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 3793#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 3794#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 3795#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 3807#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 3824#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 3823#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 3806#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 3796#L44-4 main_~nc_B~0 := 0; 3797#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 3812#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 3813#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 3814#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 3818#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 3811#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 3788#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 3789#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 3804#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 3817#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 3837#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 3800#L57-2 [2021-10-21 20:12:43,662 INFO L793 eck$LassoCheckResult]: Loop: 3800#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 3801#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 3800#L57-2 [2021-10-21 20:12:43,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:12:43,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1267821783, now seen corresponding path program 4 times [2021-10-21 20:12:43,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:12:43,663 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759184956] [2021-10-21 20:12:43,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:12:43,663 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:12:43,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:12:43,744 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-10-21 20:12:43,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:12:43,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759184956] [2021-10-21 20:12:43,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759184956] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:12:43,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [281164283] [2021-10-21 20:12:43,745 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-21 20:12:43,745 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:12:43,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:43,746 INFO L229 MonitoredProcess]: Starting monitored process 118 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:12:43,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (118)] Waiting until timeout for monitored process [2021-10-21 20:12:44,098 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-21 20:12:44,098 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:12:44,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 20:12:44,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:12:44,267 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-10-21 20:12:44,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [281164283] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:12:44,267 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:12:44,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2021-10-21 20:12:44,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435447045] [2021-10-21 20:12:44,268 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:12:44,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:12:44,268 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 7 times [2021-10-21 20:12:44,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:12:44,268 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897368365] [2021-10-21 20:12:44,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:12:44,268 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:12:44,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:44,282 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:12:44,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:44,285 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:12:44,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:12:44,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-21 20:12:44,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2021-10-21 20:12:44,383 INFO L87 Difference]: Start difference. First operand 54 states and 61 transitions. cyclomatic complexity: 12 Second operand has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:12:44,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:12:44,431 INFO L93 Difference]: Finished difference Result 60 states and 67 transitions. [2021-10-21 20:12:44,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 20:12:44,432 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 60 states and 67 transitions. [2021-10-21 20:12:44,433 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:12:44,433 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 60 states to 58 states and 65 transitions. [2021-10-21 20:12:44,433 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2021-10-21 20:12:44,433 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2021-10-21 20:12:44,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 65 transitions. [2021-10-21 20:12:44,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:12:44,434 INFO L681 BuchiCegarLoop]: Abstraction has 58 states and 65 transitions. [2021-10-21 20:12:44,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states and 65 transitions. [2021-10-21 20:12:44,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2021-10-21 20:12:44,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 56 states have (on average 1.125) internal successors, (63), 55 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) [2021-10-21 20:12:44,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 63 transitions. [2021-10-21 20:12:44,436 INFO L704 BuchiCegarLoop]: Abstraction has 56 states and 63 transitions. [2021-10-21 20:12:44,437 INFO L587 BuchiCegarLoop]: Abstraction has 56 states and 63 transitions. [2021-10-21 20:12:44,437 INFO L425 BuchiCegarLoop]: ======== Iteration 19============ [2021-10-21 20:12:44,437 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 63 transitions. [2021-10-21 20:12:44,437 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:12:44,438 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:12:44,438 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:12:44,439 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:12:44,439 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:12:44,439 INFO L791 eck$LassoCheckResult]: Stem: 4061#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(11); 4062#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 4076#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4079#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4087#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4106#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4105#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4104#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4103#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4102#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4101#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4099#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4097#L35-3 assume !(main_~i~0 < 5); 4069#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 4070#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 4057#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4058#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4081#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4100#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4098#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4096#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4095#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4094#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4093#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4091#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4090#L39-3 assume !(main_~i~0 < 5); 4088#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 4080#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 4063#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4064#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 4107#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4078#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 4065#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4066#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 4092#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4077#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 4067#L44-4 main_~nc_B~0 := 0; 4068#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 4083#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 4084#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 4112#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 4085#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 4086#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 4089#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 4082#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 4059#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 4060#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 4109#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 4108#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 4074#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 4071#L57-2 [2021-10-21 20:12:44,439 INFO L793 eck$LassoCheckResult]: Loop: 4071#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 4072#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 4071#L57-2 [2021-10-21 20:12:44,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:12:44,440 INFO L82 PathProgramCache]: Analyzing trace with hash -1412851758, now seen corresponding path program 5 times [2021-10-21 20:12:44,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:12:44,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932212922] [2021-10-21 20:12:44,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:12:44,440 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:12:44,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:44,473 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:12:44,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:44,516 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:12:44,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:12:44,517 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 8 times [2021-10-21 20:12:44,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:12:44,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568442583] [2021-10-21 20:12:44,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:12:44,517 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:12:44,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:44,522 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:12:44,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:44,525 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:12:44,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:12:44,526 INFO L82 PathProgramCache]: Analyzing trace with hash -540871307, now seen corresponding path program 3 times [2021-10-21 20:12:44,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:12:44,526 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785402704] [2021-10-21 20:12:44,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:12:44,526 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:12:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:44,556 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:12:44,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:44,612 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:12:50,576 WARN L207 SmtUtils]: Spent 5.88 s on a formula simplification. DAG size of input: 393 DAG size of output: 294 [2021-10-21 20:12:51,309 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:12:51,309 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:12:51,309 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:12:51,309 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:12:51,309 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:12:51,309 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:51,309 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:12:51,309 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:12:51,309 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-2.i_Iteration19_Lasso [2021-10-21 20:12:51,309 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:12:51,309 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:12:51,312 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:51,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:51,325 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:51,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:51,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:51,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:51,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:51,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:51,338 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:51,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:51,342 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:52,450 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:52,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:52,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:52,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:52,457 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:52,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:52,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:52,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:52,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:12:52,673 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-10-21 20:12:54,445 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:12:54,445 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:12:54,446 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:54,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:54,449 INFO L229 MonitoredProcess]: Starting monitored process 119 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:54,451 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:54,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (119)] Waiting until timeout for monitored process [2021-10-21 20:12:54,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:54,458 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:12:54,458 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:54,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:54,458 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:54,458 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:12:54,459 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:12:54,459 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:54,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (119)] Forceful destruction successful, exit code 0 [2021-10-21 20:12:54,478 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:54,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:54,479 INFO L229 MonitoredProcess]: Starting monitored process 120 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:54,480 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:54,489 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:54,489 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:54,489 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:54,489 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:54,490 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:12:54,490 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:54,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (120)] Waiting until timeout for monitored process [2021-10-21 20:12:54,515 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:54,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (120)] Forceful destruction successful, exit code 0 [2021-10-21 20:12:54,547 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:54,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:54,549 INFO L229 MonitoredProcess]: Starting monitored process 121 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:54,553 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:54,562 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:54,562 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:12:54,562 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:54,562 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:54,562 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:54,563 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:12:54,563 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:12:54,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (121)] Waiting until timeout for monitored process [2021-10-21 20:12:54,577 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:54,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (121)] Forceful destruction successful, exit code 0 [2021-10-21 20:12:54,609 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:54,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:54,611 INFO L229 MonitoredProcess]: Starting monitored process 122 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:54,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (122)] Waiting until timeout for monitored process [2021-10-21 20:12:54,612 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 [2021-10-21 20:12:54,619 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:54,619 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:12:54,619 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:54,619 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:54,619 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:54,619 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:12:54,619 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:12:54,620 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:54,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (122)] Ended with exit code 0 [2021-10-21 20:12:54,639 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:54,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:54,640 INFO L229 MonitoredProcess]: Starting monitored process 123 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:54,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (123)] Waiting until timeout for monitored process [2021-10-21 20:12:54,641 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:54,648 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:54,648 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:12:54,648 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:54,648 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:54,648 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:54,649 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:12:54,649 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:12:54,652 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:54,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (123)] Ended with exit code 0 [2021-10-21 20:12:54,672 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:54,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:54,672 INFO L229 MonitoredProcess]: Starting monitored process 124 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:54,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (124)] Waiting until timeout for monitored process [2021-10-21 20:12:54,673 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:54,680 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:54,680 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:54,680 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:54,680 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:54,681 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:12:54,681 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:54,683 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:54,702 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (124)] Ended with exit code 0 [2021-10-21 20:12:54,703 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:54,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:54,703 INFO L229 MonitoredProcess]: Starting monitored process 125 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:54,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (125)] Waiting until timeout for monitored process [2021-10-21 20:12:54,706 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:54,713 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:54,713 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:12:54,713 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:54,713 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:54,713 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:54,713 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:12:54,713 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:12:54,714 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:54,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (125)] Forceful destruction successful, exit code 0 [2021-10-21 20:12:54,733 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:54,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:54,734 INFO L229 MonitoredProcess]: Starting monitored process 126 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:54,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (126)] Waiting until timeout for monitored process [2021-10-21 20:12:54,735 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:54,742 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:54,742 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:12:54,742 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:54,742 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:54,742 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:54,742 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:12:54,742 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:12:54,743 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:54,762 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (126)] Ended with exit code 0 [2021-10-21 20:12:54,762 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:54,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:54,763 INFO L229 MonitoredProcess]: Starting monitored process 127 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:54,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (127)] Waiting until timeout for monitored process [2021-10-21 20:12:54,765 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:54,772 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:54,772 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:12:54,772 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:54,772 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:54,772 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:54,772 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:12:54,772 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:12:54,773 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:54,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (127)] Ended with exit code 0 [2021-10-21 20:12:54,792 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:54,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:54,794 INFO L229 MonitoredProcess]: Starting monitored process 128 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:54,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (128)] Waiting until timeout for monitored process [2021-10-21 20:12:54,797 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 [2021-10-21 20:12:54,804 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:54,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:54,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:54,804 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:54,807 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:12:54,808 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:54,813 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:54,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (128)] Ended with exit code 0 [2021-10-21 20:12:54,833 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:54,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:54,834 INFO L229 MonitoredProcess]: Starting monitored process 129 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:54,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (129)] Waiting until timeout for monitored process [2021-10-21 20:12:54,835 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:54,842 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:54,842 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:54,842 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:54,842 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:54,843 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:12:54,843 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:54,846 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:54,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (129)] Ended with exit code 0 [2021-10-21 20:12:54,867 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:54,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:54,868 INFO L229 MonitoredProcess]: Starting monitored process 130 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:54,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (130)] Waiting until timeout for monitored process [2021-10-21 20:12:54,869 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 [2021-10-21 20:12:54,876 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:54,876 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:54,876 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:54,876 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:54,877 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:12:54,877 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:54,879 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:54,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (130)] Forceful destruction successful, exit code 0 [2021-10-21 20:12:54,898 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:54,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:54,899 INFO L229 MonitoredProcess]: Starting monitored process 131 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:54,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (131)] Waiting until timeout for monitored process [2021-10-21 20:12:54,900 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:54,906 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:54,907 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:54,907 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:54,907 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:54,908 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:12:54,908 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:54,911 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:54,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (131)] Forceful destruction successful, exit code 0 [2021-10-21 20:12:54,930 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:54,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:54,930 INFO L229 MonitoredProcess]: Starting monitored process 132 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:54,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (132)] Waiting until timeout for monitored process [2021-10-21 20:12:54,931 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 [2021-10-21 20:12:54,938 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:54,938 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:12:54,938 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:54,938 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:54,938 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:54,939 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:12:54,939 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:12:54,964 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:54,986 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (132)] Ended with exit code 0 [2021-10-21 20:12:54,986 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:54,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:54,986 INFO L229 MonitoredProcess]: Starting monitored process 133 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:54,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (133)] Waiting until timeout for monitored process [2021-10-21 20:12:54,988 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 [2021-10-21 20:12:54,994 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:54,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:54,995 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:54,995 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:54,996 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:12:54,996 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:55,004 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:55,023 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (133)] Ended with exit code 0 [2021-10-21 20:12:55,023 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:55,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:55,024 INFO L229 MonitoredProcess]: Starting monitored process 134 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:55,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (134)] Waiting until timeout for monitored process [2021-10-21 20:12:55,026 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:55,033 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:55,033 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-10-21 20:12:55,033 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:55,033 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:55,034 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-10-21 20:12:55,034 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:55,037 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:55,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (134)] Forceful destruction successful, exit code 0 [2021-10-21 20:12:55,056 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:55,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:55,056 INFO L229 MonitoredProcess]: Starting monitored process 135 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:55,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (135)] Waiting until timeout for monitored process [2021-10-21 20:12:55,057 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 [2021-10-21 20:12:55,064 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:55,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:55,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:55,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:55,065 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:12:55,065 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:55,068 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:55,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (135)] Forceful destruction successful, exit code 0 [2021-10-21 20:12:55,087 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:55,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:55,088 INFO L229 MonitoredProcess]: Starting monitored process 136 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:55,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (136)] Waiting until timeout for monitored process [2021-10-21 20:12:55,089 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:55,096 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:55,096 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:55,096 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:55,096 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:55,097 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:12:55,097 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:55,100 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:55,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (136)] Forceful destruction successful, exit code 0 [2021-10-21 20:12:55,119 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:55,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:55,120 INFO L229 MonitoredProcess]: Starting monitored process 137 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:55,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (137)] Waiting until timeout for monitored process [2021-10-21 20:12:55,121 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:55,128 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:55,128 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-10-21 20:12:55,128 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:55,128 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:55,129 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-10-21 20:12:55,129 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:55,132 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:55,150 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (137)] Ended with exit code 0 [2021-10-21 20:12:55,151 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:55,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:55,151 INFO L229 MonitoredProcess]: Starting monitored process 138 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:55,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (138)] Waiting until timeout for monitored process [2021-10-21 20:12:55,153 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:55,160 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:55,160 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:55,160 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:55,160 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:55,161 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:12:55,161 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:55,163 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:55,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (138)] Forceful destruction successful, exit code 0 [2021-10-21 20:12:55,183 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:55,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:55,183 INFO L229 MonitoredProcess]: Starting monitored process 139 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:55,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (139)] Waiting until timeout for monitored process [2021-10-21 20:12:55,184 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:55,191 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:55,191 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:55,191 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:55,191 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:55,192 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:12:55,192 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:55,195 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:55,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (139)] Ended with exit code 0 [2021-10-21 20:12:55,216 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:55,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:55,217 INFO L229 MonitoredProcess]: Starting monitored process 140 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:55,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (140)] Waiting until timeout for monitored process [2021-10-21 20:12:55,218 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:12:55,225 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:55,225 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:12:55,225 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:55,225 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:55,225 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:55,226 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:12:55,226 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:12:55,227 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:12:55,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (140)] Forceful destruction successful, exit code 0 [2021-10-21 20:12:55,246 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:55,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:55,246 INFO L229 MonitoredProcess]: Starting monitored process 141 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:55,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (141)] Waiting until timeout for monitored process [2021-10-21 20:12:55,247 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 [2021-10-21 20:12:55,254 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:12:55,255 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:12:55,255 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:12:55,255 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:12:55,262 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:12:55,262 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:12:55,292 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:12:55,353 INFO L443 ModelExtractionUtils]: Simplification made 22 calls to the SMT solver. [2021-10-21 20:12:55,353 INFO L444 ModelExtractionUtils]: 3 out of 31 variables were initially zero. Simplification set additionally 25 variables to zero. [2021-10-21 20:12:55,353 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:12:55,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:12:55,361 INFO L229 MonitoredProcess]: Starting monitored process 142 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:12:55,362 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:12:55,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (142)] Waiting until timeout for monitored process [2021-10-21 20:12:55,388 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 20:12:55,388 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:12:55,388 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_7, ULTIMATE.start_main_~i~0) = 5*v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_7 - 2*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-10-21 20:12:55,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (141)] Forceful destruction successful, exit code 0 [2021-10-21 20:12:55,808 INFO L297 tatePredicateManager]: 66 out of 69 supporting invariants were superfluous and have been removed [2021-10-21 20:12:55,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:12:55,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:12:55,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-21 20:12:55,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:12:55,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (142)] Ended with exit code 0 [2021-10-21 20:12:56,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:12:56,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-21 20:12:56,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:12:56,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:12:56,730 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.7 stem predicates 2 loop predicates [2021-10-21 20:12:56,731 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 56 states and 63 transitions. cyclomatic complexity: 12 Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:12:56,843 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 56 states and 63 transitions. cyclomatic complexity: 12. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 82 states and 97 transitions. Complement of second has 12 states. [2021-10-21 20:12:56,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 7 stem states 1 non-accepting loop states 2 accepting loop states [2021-10-21 20:12:56,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:12:56,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 42 transitions. [2021-10-21 20:12:56,846 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 42 transitions. Stem has 50 letters. Loop has 2 letters. [2021-10-21 20:12:56,846 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:12:56,846 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:12:56,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:12:56,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:12:56,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-21 20:12:56,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:12:57,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:12:57,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-21 20:12:57,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:12:57,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:12:57,630 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.7 stem predicates 2 loop predicates [2021-10-21 20:12:57,630 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 56 states and 63 transitions. cyclomatic complexity: 12 Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:12:57,738 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 56 states and 63 transitions. cyclomatic complexity: 12. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 82 states and 97 transitions. Complement of second has 12 states. [2021-10-21 20:12:57,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 7 stem states 1 non-accepting loop states 2 accepting loop states [2021-10-21 20:12:57,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:12:57,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 42 transitions. [2021-10-21 20:12:57,739 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 42 transitions. Stem has 50 letters. Loop has 2 letters. [2021-10-21 20:12:57,739 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:12:57,739 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:12:57,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:12:57,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:12:57,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-21 20:12:57,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:12:58,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:12:58,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-21 20:12:58,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:12:58,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:12:58,574 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.7 stem predicates 2 loop predicates [2021-10-21 20:12:58,575 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 56 states and 63 transitions. cyclomatic complexity: 12 Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:12:58,670 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 56 states and 63 transitions. cyclomatic complexity: 12. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 88 states and 106 transitions. Complement of second has 11 states. [2021-10-21 20:12:58,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 7 stem states 1 non-accepting loop states 2 accepting loop states [2021-10-21 20:12:58,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:12:58,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 44 transitions. [2021-10-21 20:12:58,671 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 44 transitions. Stem has 50 letters. Loop has 2 letters. [2021-10-21 20:12:58,671 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:12:58,671 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 44 transitions. Stem has 52 letters. Loop has 2 letters. [2021-10-21 20:12:58,672 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:12:58,672 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 44 transitions. Stem has 50 letters. Loop has 4 letters. [2021-10-21 20:12:58,672 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:12:58,672 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 88 states and 106 transitions. [2021-10-21 20:12:58,673 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-10-21 20:12:58,674 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 88 states to 86 states and 102 transitions. [2021-10-21 20:12:58,674 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 50 [2021-10-21 20:12:58,675 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2021-10-21 20:12:58,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 86 states and 102 transitions. [2021-10-21 20:12:58,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:12:58,675 INFO L681 BuchiCegarLoop]: Abstraction has 86 states and 102 transitions. [2021-10-21 20:12:58,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states and 102 transitions. [2021-10-21 20:12:58,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 73. [2021-10-21 20:12:58,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 73 states have (on average 1.1506849315068493) internal successors, (84), 72 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) [2021-10-21 20:12:58,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 84 transitions. [2021-10-21 20:12:58,678 INFO L704 BuchiCegarLoop]: Abstraction has 73 states and 84 transitions. [2021-10-21 20:12:58,678 INFO L587 BuchiCegarLoop]: Abstraction has 73 states and 84 transitions. [2021-10-21 20:12:58,678 INFO L425 BuchiCegarLoop]: ======== Iteration 20============ [2021-10-21 20:12:58,678 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 73 states and 84 transitions. [2021-10-21 20:12:58,679 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-21 20:12:58,679 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:12:58,679 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:12:58,680 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:12:58,680 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:12:58,680 INFO L791 eck$LassoCheckResult]: Stem: 5223#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(11); 5224#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 5238#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5241#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5248#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5265#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5263#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5261#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5259#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5257#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5255#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5253#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5251#L35-3 assume !(main_~i~0 < 5); 5231#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 5232#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 5219#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5220#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5243#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5264#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5262#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5260#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5258#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5256#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5254#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5252#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5250#L39-3 assume !(main_~i~0 < 5); 5249#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 5242#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 5225#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 5226#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 5240#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 5271#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 5227#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 5228#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 5268#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 5239#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 5229#L44-4 main_~nc_B~0 := 0; 5230#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5245#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 5246#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5247#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 5270#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5267#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 5266#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5244#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 5221#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 5222#L57-2 [2021-10-21 20:12:58,680 INFO L793 eck$LassoCheckResult]: Loop: 5222#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 5236#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 5222#L57-2 [2021-10-21 20:12:58,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:12:58,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1972313288, now seen corresponding path program 3 times [2021-10-21 20:12:58,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:12:58,681 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032105747] [2021-10-21 20:12:58,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:12:58,681 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:12:58,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:58,706 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:12:58,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:58,746 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:12:58,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:12:58,747 INFO L82 PathProgramCache]: Analyzing trace with hash 3558, now seen corresponding path program 3 times [2021-10-21 20:12:58,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:12:58,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341801305] [2021-10-21 20:12:58,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:12:58,747 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:12:58,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:58,754 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:12:58,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:58,756 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:12:58,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:12:58,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1312494829, now seen corresponding path program 6 times [2021-10-21 20:12:58,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:12:58,757 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883721081] [2021-10-21 20:12:58,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:12:58,758 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:12:58,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:58,779 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:12:58,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:12:58,802 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:13:05,051 WARN L207 SmtUtils]: Spent 6.17 s on a formula simplification. DAG size of input: 344 DAG size of output: 257 [2021-10-21 20:13:06,025 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:13:06,025 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:13:06,025 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:13:06,025 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:13:06,025 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:13:06,025 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:06,025 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:13:06,026 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:13:06,026 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-2.i_Iteration20_Lasso [2021-10-21 20:13:06,026 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:13:06,026 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:13:06,028 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:06,030 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:06,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:06,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:06,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:06,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:06,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:06,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:06,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:06,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:06,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:06,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:06,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:06,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:06,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:06,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:06,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:06,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:06,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:06,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:07,372 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:13:07,372 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:13:07,372 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:07,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:07,381 INFO L229 MonitoredProcess]: Starting monitored process 143 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:07,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (143)] Waiting until timeout for monitored process [2021-10-21 20:13:07,384 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 [2021-10-21 20:13:07,391 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:07,391 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:07,391 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:07,391 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:07,392 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:07,393 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:07,396 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:07,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (143)] Ended with exit code 0 [2021-10-21 20:13:07,417 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:07,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:07,417 INFO L229 MonitoredProcess]: Starting monitored process 144 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:07,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (144)] Waiting until timeout for monitored process [2021-10-21 20:13:07,418 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:07,425 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:07,425 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:13:07,425 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:07,425 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:07,426 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:07,426 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:13:07,426 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:13:07,427 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:07,446 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (144)] Ended with exit code 0 [2021-10-21 20:13:07,447 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:07,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:07,447 INFO L229 MonitoredProcess]: Starting monitored process 145 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:07,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (145)] Waiting until timeout for monitored process [2021-10-21 20:13:07,448 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:07,455 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:07,455 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:13:07,455 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:07,455 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:07,455 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:07,456 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:13:07,456 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:13:07,457 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:07,476 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (145)] Ended with exit code 0 [2021-10-21 20:13:07,476 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:07,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:07,477 INFO L229 MonitoredProcess]: Starting monitored process 146 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:07,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (146)] Waiting until timeout for monitored process [2021-10-21 20:13:07,478 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:07,484 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:07,485 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:13:07,485 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:07,485 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:07,485 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:07,485 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:13:07,485 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:13:07,487 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:07,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (146)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:07,507 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:07,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:07,507 INFO L229 MonitoredProcess]: Starting monitored process 147 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:07,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (147)] Waiting until timeout for monitored process [2021-10-21 20:13:07,509 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:07,516 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:07,516 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:07,516 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:07,516 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:07,517 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:07,518 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:07,520 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:07,540 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (147)] Ended with exit code 0 [2021-10-21 20:13:07,540 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:07,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:07,541 INFO L229 MonitoredProcess]: Starting monitored process 148 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:07,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (148)] Waiting until timeout for monitored process [2021-10-21 20:13:07,542 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 [2021-10-21 20:13:07,549 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:07,549 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:13:07,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:07,549 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:07,549 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:07,549 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:13:07,550 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:13:07,550 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:07,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (148)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:07,570 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:07,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:07,571 INFO L229 MonitoredProcess]: Starting monitored process 149 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:07,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (149)] Waiting until timeout for monitored process [2021-10-21 20:13:07,578 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:07,585 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:07,585 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:13:07,585 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:07,585 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:07,585 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:07,585 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:13:07,585 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:13:07,586 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:07,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (149)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:07,606 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:07,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:07,607 INFO L229 MonitoredProcess]: Starting monitored process 150 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:07,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (150)] Waiting until timeout for monitored process [2021-10-21 20:13:07,608 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:07,615 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:07,615 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:13:07,615 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:07,615 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:07,615 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:07,615 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:13:07,615 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:13:07,616 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:07,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (150)] Ended with exit code 0 [2021-10-21 20:13:07,636 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:07,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:07,637 INFO L229 MonitoredProcess]: Starting monitored process 151 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:07,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (151)] Waiting until timeout for monitored process [2021-10-21 20:13:07,638 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 [2021-10-21 20:13:07,645 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:07,645 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:07,645 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:07,645 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:07,646 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:07,646 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:07,648 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:07,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (151)] Ended with exit code 0 [2021-10-21 20:13:07,667 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:07,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:07,667 INFO L229 MonitoredProcess]: Starting monitored process 152 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:07,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (152)] Waiting until timeout for monitored process [2021-10-21 20:13:07,668 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:07,675 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:07,675 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:13:07,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:07,675 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:07,675 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:07,676 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:13:07,676 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:13:07,677 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:07,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (152)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:07,696 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:07,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:07,697 INFO L229 MonitoredProcess]: Starting monitored process 153 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:07,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (153)] Waiting until timeout for monitored process [2021-10-21 20:13:07,698 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:07,705 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:07,705 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:07,705 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:07,705 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:07,706 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:07,706 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:07,708 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:07,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (153)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:07,726 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:07,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:07,727 INFO L229 MonitoredProcess]: Starting monitored process 154 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:07,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (154)] Waiting until timeout for monitored process [2021-10-21 20:13:07,728 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:07,735 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:07,735 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:13:07,735 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:07,735 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:07,735 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:07,735 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:13:07,735 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:13:07,736 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:07,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (154)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:07,755 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:07,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:07,756 INFO L229 MonitoredProcess]: Starting monitored process 155 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:07,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (155)] Waiting until timeout for monitored process [2021-10-21 20:13:07,757 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 [2021-10-21 20:13:07,763 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:07,764 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:07,764 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:07,764 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:07,765 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:07,765 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:07,767 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:07,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (155)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:07,786 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:07,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:07,787 INFO L229 MonitoredProcess]: Starting monitored process 156 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:07,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (156)] Waiting until timeout for monitored process [2021-10-21 20:13:07,789 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 [2021-10-21 20:13:07,795 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:07,796 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:07,796 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:07,796 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:07,796 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:07,797 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:07,799 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:07,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (156)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:07,818 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:07,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:07,818 INFO L229 MonitoredProcess]: Starting monitored process 157 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:07,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (157)] Waiting until timeout for monitored process [2021-10-21 20:13:07,819 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:07,826 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:07,826 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:07,827 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:07,827 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:07,828 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:07,828 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:07,832 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:07,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (157)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:07,852 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:07,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:07,852 INFO L229 MonitoredProcess]: Starting monitored process 158 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:07,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (158)] Waiting until timeout for monitored process [2021-10-21 20:13:07,853 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:07,860 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:07,860 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:07,860 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:07,860 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:07,861 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:07,861 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:07,864 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:07,889 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (158)] Ended with exit code 0 [2021-10-21 20:13:07,889 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:07,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:07,890 INFO L229 MonitoredProcess]: Starting monitored process 159 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:07,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (159)] Waiting until timeout for monitored process [2021-10-21 20:13:07,891 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:07,898 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:07,898 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2021-10-21 20:13:07,898 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-21 20:13:07,898 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:07,907 INFO L401 nArgumentSynthesizer]: We have 28 Motzkin's Theorem applications. [2021-10-21 20:13:07,907 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-21 20:13:07,927 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:07,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (159)] Ended with exit code 0 [2021-10-21 20:13:07,947 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:07,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:07,950 INFO L229 MonitoredProcess]: Starting monitored process 160 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:07,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (160)] Waiting until timeout for monitored process [2021-10-21 20:13:07,951 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:07,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:07,958 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-10-21 20:13:07,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:07,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:07,959 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-10-21 20:13:07,959 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:07,962 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:07,981 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (160)] Ended with exit code 0 [2021-10-21 20:13:07,982 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:07,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:07,982 INFO L229 MonitoredProcess]: Starting monitored process 161 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:07,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (161)] Waiting until timeout for monitored process [2021-10-21 20:13:07,983 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:07,990 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:07,990 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:07,990 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:07,990 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:07,991 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:07,991 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:07,994 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:08,013 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (161)] Ended with exit code 0 [2021-10-21 20:13:08,014 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:08,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:08,015 INFO L229 MonitoredProcess]: Starting monitored process 162 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:08,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (162)] Waiting until timeout for monitored process [2021-10-21 20:13:08,016 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:08,023 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:08,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:08,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:08,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:08,024 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:08,025 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:08,029 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:08,048 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (162)] Ended with exit code 0 [2021-10-21 20:13:08,049 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:08,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:08,049 INFO L229 MonitoredProcess]: Starting monitored process 163 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:08,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (163)] Waiting until timeout for monitored process [2021-10-21 20:13:08,050 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:08,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:08,058 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:13:08,058 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:08,058 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:08,058 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:08,058 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:13:08,058 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:13:08,059 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:08,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (163)] Ended with exit code 0 [2021-10-21 20:13:08,079 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:08,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:08,080 INFO L229 MonitoredProcess]: Starting monitored process 164 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:08,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (164)] Waiting until timeout for monitored process [2021-10-21 20:13:08,081 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:08,088 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:08,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:08,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:08,088 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:08,089 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:08,089 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:08,092 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:08,112 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (164)] Ended with exit code 0 [2021-10-21 20:13:08,112 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:08,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:08,117 INFO L229 MonitoredProcess]: Starting monitored process 165 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:08,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (165)] Waiting until timeout for monitored process [2021-10-21 20:13:08,119 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 [2021-10-21 20:13:08,126 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:08,126 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-10-21 20:13:08,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:08,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:08,127 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-10-21 20:13:08,127 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:08,129 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:08,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (165)] Ended with exit code 0 [2021-10-21 20:13:08,149 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:08,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:08,150 INFO L229 MonitoredProcess]: Starting monitored process 166 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:08,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (166)] Waiting until timeout for monitored process [2021-10-21 20:13:08,151 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:08,157 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:08,157 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:08,158 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:08,158 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:08,158 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:08,159 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:08,161 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:08,180 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (166)] Ended with exit code 0 [2021-10-21 20:13:08,180 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:08,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:08,181 INFO L229 MonitoredProcess]: Starting monitored process 167 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:08,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (167)] Waiting until timeout for monitored process [2021-10-21 20:13:08,182 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:08,189 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:08,189 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-10-21 20:13:08,189 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:08,189 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:08,195 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-10-21 20:13:08,195 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:08,216 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:08,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (167)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:08,236 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:08,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:08,237 INFO L229 MonitoredProcess]: Starting monitored process 168 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:08,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (168)] Waiting until timeout for monitored process [2021-10-21 20:13:08,238 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:08,245 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:08,245 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:08,245 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:08,245 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:08,246 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:08,246 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:08,248 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:08,267 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (168)] Ended with exit code 0 [2021-10-21 20:13:08,267 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:08,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:08,268 INFO L229 MonitoredProcess]: Starting monitored process 169 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:08,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (169)] Waiting until timeout for monitored process [2021-10-21 20:13:08,270 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 [2021-10-21 20:13:08,277 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:08,277 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-10-21 20:13:08,277 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:08,277 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:08,278 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-10-21 20:13:08,278 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:08,300 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:08,319 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (169)] Ended with exit code 0 [2021-10-21 20:13:08,320 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:08,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:08,320 INFO L229 MonitoredProcess]: Starting monitored process 170 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:08,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (170)] Waiting until timeout for monitored process [2021-10-21 20:13:08,322 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:08,328 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:08,328 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:08,328 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:08,328 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:08,329 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:08,329 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:08,332 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:08,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (170)] Ended with exit code 0 [2021-10-21 20:13:08,351 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:08,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:08,352 INFO L229 MonitoredProcess]: Starting monitored process 171 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:08,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (171)] Waiting until timeout for monitored process [2021-10-21 20:13:08,358 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:08,364 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:08,365 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:08,365 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:08,365 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:08,371 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:08,371 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:08,385 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:13:08,409 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2021-10-21 20:13:08,409 INFO L444 ModelExtractionUtils]: 0 out of 31 variables were initially zero. Simplification set additionally 28 variables to zero. [2021-10-21 20:13:08,410 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:08,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:08,410 INFO L229 MonitoredProcess]: Starting monitored process 172 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:08,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (172)] Waiting until timeout for monitored process [2021-10-21 20:13:08,411 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:13:08,419 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 20:13:08,419 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:13:08,419 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~nc_A~0) = -1*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~nc_A~0 Supporting invariants [] [2021-10-21 20:13:08,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (171)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:08,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (172)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:08,784 INFO L297 tatePredicateManager]: 74 out of 75 supporting invariants were superfluous and have been removed [2021-10-21 20:13:08,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:08,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:13:08,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:13:08,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:13:08,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:13:08,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 20:13:08,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:13:08,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:13:08,965 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 20:13:08,965 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 73 states and 84 transitions. cyclomatic complexity: 18 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 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) [2021-10-21 20:13:08,991 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 73 states and 84 transitions. cyclomatic complexity: 18. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 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) Result 102 states and 123 transitions. Complement of second has 6 states. [2021-10-21 20:13:08,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 2 accepting loop states [2021-10-21 20:13:08,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 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) [2021-10-21 20:13:08,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2021-10-21 20:13:08,992 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 46 letters. Loop has 2 letters. [2021-10-21 20:13:08,992 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:13:08,993 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 48 letters. Loop has 2 letters. [2021-10-21 20:13:08,993 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:13:08,993 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 46 letters. Loop has 4 letters. [2021-10-21 20:13:08,993 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:13:08,993 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 102 states and 123 transitions. [2021-10-21 20:13:08,995 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-21 20:13:08,996 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 102 states to 95 states and 114 transitions. [2021-10-21 20:13:08,996 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 48 [2021-10-21 20:13:08,996 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2021-10-21 20:13:08,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 95 states and 114 transitions. [2021-10-21 20:13:08,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:13:08,996 INFO L681 BuchiCegarLoop]: Abstraction has 95 states and 114 transitions. [2021-10-21 20:13:08,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states and 114 transitions. [2021-10-21 20:13:08,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 81. [2021-10-21 20:13:08,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 81 states have (on average 1.1851851851851851) internal successors, (96), 80 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) [2021-10-21 20:13:08,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 96 transitions. [2021-10-21 20:13:08,999 INFO L704 BuchiCegarLoop]: Abstraction has 81 states and 96 transitions. [2021-10-21 20:13:08,999 INFO L587 BuchiCegarLoop]: Abstraction has 81 states and 96 transitions. [2021-10-21 20:13:08,999 INFO L425 BuchiCegarLoop]: ======== Iteration 21============ [2021-10-21 20:13:08,999 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 81 states and 96 transitions. [2021-10-21 20:13:09,000 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-21 20:13:09,000 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:13:09,000 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:13:09,001 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:13:09,001 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:13:09,001 INFO L791 eck$LassoCheckResult]: Stem: 5873#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(11); 5874#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 5886#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5888#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5897#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5916#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5914#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5912#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5910#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5908#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5906#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5904#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5902#L35-3 assume !(main_~i~0 < 5); 5881#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 5882#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 5869#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5870#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5890#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5915#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5913#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5911#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5909#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5907#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5905#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5903#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5901#L39-3 assume !(main_~i~0 < 5); 5898#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 5889#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 5875#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 5876#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 5877#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 5878#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 5921#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 5922#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 5943#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 5942#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 5941#L44-4 main_~nc_B~0 := 0; 5940#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5939#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 5938#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5937#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 5936#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5935#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 5934#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5933#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 5871#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 5872#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 5884#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 5949#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 5899#L57 [2021-10-21 20:13:09,002 INFO L793 eck$LassoCheckResult]: Loop: 5899#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 5900#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 5899#L57 [2021-10-21 20:13:09,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:09,002 INFO L82 PathProgramCache]: Analyzing trace with hash 2032634054, now seen corresponding path program 3 times [2021-10-21 20:13:09,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:09,002 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876588475] [2021-10-21 20:13:09,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:09,003 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:09,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:09,031 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:13:09,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:09,059 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:13:09,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:09,060 INFO L82 PathProgramCache]: Analyzing trace with hash 3708, now seen corresponding path program 4 times [2021-10-21 20:13:09,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:09,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022332030] [2021-10-21 20:13:09,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:09,061 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:09,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:09,083 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:13:09,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:09,085 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:13:09,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:09,086 INFO L82 PathProgramCache]: Analyzing trace with hash -848791039, now seen corresponding path program 4 times [2021-10-21 20:13:09,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:09,086 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895817725] [2021-10-21 20:13:09,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:09,086 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:09,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:09,113 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:13:09,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:09,188 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:13:18,896 WARN L207 SmtUtils]: Spent 9.58 s on a formula simplification. DAG size of input: 383 DAG size of output: 282 [2021-10-21 20:13:19,928 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:13:19,928 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:13:19,928 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:13:19,928 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:13:19,929 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:13:19,929 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:19,929 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:13:19,929 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:13:19,929 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-2.i_Iteration21_Lasso [2021-10-21 20:13:19,929 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:13:19,929 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:13:19,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:19,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:19,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:19,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:19,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:19,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:19,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:19,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:19,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:19,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:19,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:19,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:19,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:19,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:19,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:19,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:19,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:21,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:21,788 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:13:21,788 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:13:21,788 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:21,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:21,796 INFO L229 MonitoredProcess]: Starting monitored process 173 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:21,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (173)] Waiting until timeout for monitored process [2021-10-21 20:13:21,798 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 [2021-10-21 20:13:21,804 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:21,804 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:13:21,805 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:21,805 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:21,805 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:21,805 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:13:21,805 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:13:21,806 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:21,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (173)] Ended with exit code 0 [2021-10-21 20:13:21,825 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:21,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:21,826 INFO L229 MonitoredProcess]: Starting monitored process 174 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:21,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (174)] Waiting until timeout for monitored process [2021-10-21 20:13:21,827 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:21,833 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:21,833 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:13:21,834 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:21,834 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:21,834 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:21,834 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:13:21,834 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:13:21,846 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:21,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (174)] Ended with exit code 0 [2021-10-21 20:13:21,865 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:21,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:21,866 INFO L229 MonitoredProcess]: Starting monitored process 175 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:21,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (175)] Waiting until timeout for monitored process [2021-10-21 20:13:21,867 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:21,873 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:21,874 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:13:21,874 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:21,874 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:21,874 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:21,874 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:13:21,874 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:13:21,875 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:21,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (175)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:21,894 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:21,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:21,895 INFO L229 MonitoredProcess]: Starting monitored process 176 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:21,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (176)] Waiting until timeout for monitored process [2021-10-21 20:13:21,896 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:21,903 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:21,903 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:13:21,903 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:21,903 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:21,903 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:21,903 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:13:21,903 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:13:21,904 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:21,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (176)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:21,924 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:21,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:21,925 INFO L229 MonitoredProcess]: Starting monitored process 177 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:21,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (177)] Waiting until timeout for monitored process [2021-10-21 20:13:21,926 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:21,933 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:21,933 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:13:21,933 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:21,933 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:21,933 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:21,933 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:13:21,933 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:13:21,934 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:21,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (177)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:21,953 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:21,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:21,954 INFO L229 MonitoredProcess]: Starting monitored process 178 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:21,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (178)] Waiting until timeout for monitored process [2021-10-21 20:13:21,955 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:21,962 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:21,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:21,962 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:21,962 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:21,963 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:21,963 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:21,965 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:21,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (178)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:21,984 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:21,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:21,985 INFO L229 MonitoredProcess]: Starting monitored process 179 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:21,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (179)] Waiting until timeout for monitored process [2021-10-21 20:13:21,986 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 [2021-10-21 20:13:21,993 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:21,993 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:21,993 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:21,993 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:21,994 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:21,994 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:21,996 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:22,015 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (179)] Ended with exit code 0 [2021-10-21 20:13:22,015 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:22,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:22,016 INFO L229 MonitoredProcess]: Starting monitored process 180 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:22,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (180)] Waiting until timeout for monitored process [2021-10-21 20:13:22,017 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 [2021-10-21 20:13:22,023 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:22,024 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:13:22,024 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:22,024 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:22,024 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:22,024 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:13:22,024 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:13:22,025 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:22,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (180)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:22,044 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:22,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:22,045 INFO L229 MonitoredProcess]: Starting monitored process 181 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:22,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (181)] Waiting until timeout for monitored process [2021-10-21 20:13:22,047 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 [2021-10-21 20:13:22,054 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:22,054 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:22,054 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:22,054 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:22,055 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:22,055 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:22,057 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:22,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (181)] Ended with exit code 0 [2021-10-21 20:13:22,076 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:22,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:22,077 INFO L229 MonitoredProcess]: Starting monitored process 182 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:22,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (182)] Waiting until timeout for monitored process [2021-10-21 20:13:22,078 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:22,084 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:22,085 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:13:22,085 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:22,085 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:22,085 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:22,085 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:13:22,085 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:13:22,086 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:22,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (182)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:22,105 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:22,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:22,106 INFO L229 MonitoredProcess]: Starting monitored process 183 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:22,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (183)] Waiting until timeout for monitored process [2021-10-21 20:13:22,107 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:22,114 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:22,114 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:22,114 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:22,114 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:22,115 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:22,115 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:22,117 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:22,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (183)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:22,136 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:22,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:22,137 INFO L229 MonitoredProcess]: Starting monitored process 184 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:22,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (184)] Waiting until timeout for monitored process [2021-10-21 20:13:22,138 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:22,145 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:22,145 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:13:22,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:22,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:22,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:22,146 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:13:22,146 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:13:22,147 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:22,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (184)] Ended with exit code 0 [2021-10-21 20:13:22,170 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:22,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:22,170 INFO L229 MonitoredProcess]: Starting monitored process 185 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:22,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (185)] Waiting until timeout for monitored process [2021-10-21 20:13:22,172 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:22,180 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:22,180 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:13:22,180 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:22,180 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:22,180 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:22,180 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:13:22,181 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:13:22,184 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:22,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (185)] Ended with exit code 0 [2021-10-21 20:13:22,207 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:22,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:22,208 INFO L229 MonitoredProcess]: Starting monitored process 186 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:22,233 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 [2021-10-21 20:13:22,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:22,242 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:13:22,242 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:22,242 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:22,242 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:22,243 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:13:22,243 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:13:22,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (186)] Waiting until timeout for monitored process [2021-10-21 20:13:22,252 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:22,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (186)] Ended with exit code 0 [2021-10-21 20:13:22,284 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:22,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:22,285 INFO L229 MonitoredProcess]: Starting monitored process 187 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:22,293 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:22,302 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:22,302 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:13:22,302 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:22,302 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:22,302 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:22,302 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:13:22,303 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:13:22,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (187)] Waiting until timeout for monitored process [2021-10-21 20:13:22,316 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:22,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (187)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:22,348 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:22,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:22,349 INFO L229 MonitoredProcess]: Starting monitored process 188 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:22,351 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:22,359 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:22,359 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:13:22,359 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:22,359 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:22,360 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:22,360 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:13:22,360 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:13:22,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (188)] Waiting until timeout for monitored process [2021-10-21 20:13:22,384 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:22,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (188)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:22,417 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:22,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:22,418 INFO L229 MonitoredProcess]: Starting monitored process 189 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:22,421 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:22,430 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:22,430 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-10-21 20:13:22,430 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:22,430 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:22,432 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-10-21 20:13:22,432 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:22,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (189)] Waiting until timeout for monitored process [2021-10-21 20:13:22,448 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:22,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (189)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:22,486 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:22,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:22,488 INFO L229 MonitoredProcess]: Starting monitored process 190 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:22,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (190)] Waiting until timeout for monitored process [2021-10-21 20:13:22,493 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:22,502 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:22,502 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:22,502 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:22,502 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:22,503 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:22,503 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:22,528 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:22,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (190)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:22,561 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:22,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:22,565 INFO L229 MonitoredProcess]: Starting monitored process 191 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:22,567 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:22,576 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:22,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:22,576 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:22,576 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:22,577 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:22,577 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:22,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (191)] Waiting until timeout for monitored process [2021-10-21 20:13:22,588 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:22,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (191)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:22,621 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:22,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:22,625 INFO L229 MonitoredProcess]: Starting monitored process 192 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:22,629 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:22,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (192)] Waiting until timeout for monitored process [2021-10-21 20:13:22,638 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:22,638 INFO L203 nArgumentSynthesizer]: 8 stem disjuncts [2021-10-21 20:13:22,638 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-21 20:13:22,638 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:22,676 INFO L401 nArgumentSynthesizer]: We have 44 Motzkin's Theorem applications. [2021-10-21 20:13:22,677 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-21 20:13:22,723 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:22,742 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (192)] Ended with exit code 0 [2021-10-21 20:13:22,742 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:22,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:22,743 INFO L229 MonitoredProcess]: Starting monitored process 193 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:22,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (193)] Waiting until timeout for monitored process [2021-10-21 20:13:22,744 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:22,751 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:22,751 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:22,751 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:22,751 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:22,753 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:22,753 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:22,757 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:22,776 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (193)] Ended with exit code 0 [2021-10-21 20:13:22,776 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:22,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:22,777 INFO L229 MonitoredProcess]: Starting monitored process 194 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:22,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (194)] Waiting until timeout for monitored process [2021-10-21 20:13:22,778 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 [2021-10-21 20:13:22,785 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:22,785 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:22,785 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:22,785 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:22,786 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:22,786 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:22,788 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:22,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (194)] Ended with exit code 0 [2021-10-21 20:13:22,807 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:22,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:22,808 INFO L229 MonitoredProcess]: Starting monitored process 195 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:22,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (195)] Waiting until timeout for monitored process [2021-10-21 20:13:22,809 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:22,815 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:22,816 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-10-21 20:13:22,816 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:22,816 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:22,817 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-10-21 20:13:22,817 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:22,819 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:22,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (195)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:22,838 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:22,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:22,839 INFO L229 MonitoredProcess]: Starting monitored process 196 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:22,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (196)] Waiting until timeout for monitored process [2021-10-21 20:13:22,843 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:22,850 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:22,850 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:22,850 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:22,850 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:22,851 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:22,857 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:22,860 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:22,879 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (196)] Ended with exit code 0 [2021-10-21 20:13:22,879 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:22,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:22,880 INFO L229 MonitoredProcess]: Starting monitored process 197 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:22,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (197)] Waiting until timeout for monitored process [2021-10-21 20:13:22,881 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:22,887 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:22,887 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:22,888 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:22,888 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:22,888 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:22,888 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:22,891 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:22,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (197)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:22,910 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:22,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:22,910 INFO L229 MonitoredProcess]: Starting monitored process 198 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:22,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (198)] Waiting until timeout for monitored process [2021-10-21 20:13:22,911 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 [2021-10-21 20:13:22,918 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:22,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:22,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:22,918 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:22,919 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:22,919 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:22,922 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:22,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (198)] Ended with exit code 0 [2021-10-21 20:13:22,941 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:22,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:22,949 INFO L229 MonitoredProcess]: Starting monitored process 199 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:22,950 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:22,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (199)] Waiting until timeout for monitored process [2021-10-21 20:13:22,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:22,958 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:13:22,958 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:22,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:22,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:22,958 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:13:22,958 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:13:22,959 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:22,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (199)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:22,978 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:22,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:22,979 INFO L229 MonitoredProcess]: Starting monitored process 200 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:22,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (200)] Waiting until timeout for monitored process [2021-10-21 20:13:22,980 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:22,986 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:22,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:22,987 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:22,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:22,987 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:22,988 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:22,990 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:23,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (200)] Ended with exit code 0 [2021-10-21 20:13:23,009 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:23,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:23,010 INFO L229 MonitoredProcess]: Starting monitored process 201 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:23,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (201)] Waiting until timeout for monitored process [2021-10-21 20:13:23,011 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:23,019 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:23,019 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:23,019 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:23,019 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:23,020 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:23,020 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:23,022 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:23,041 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (201)] Ended with exit code 0 [2021-10-21 20:13:23,041 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:23,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:23,041 INFO L229 MonitoredProcess]: Starting monitored process 202 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:23,043 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 [2021-10-21 20:13:23,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (202)] Waiting until timeout for monitored process [2021-10-21 20:13:23,049 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:23,050 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:13:23,050 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:23,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:23,050 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:23,050 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:13:23,050 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:13:23,051 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:23,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (202)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:23,070 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:23,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:23,071 INFO L229 MonitoredProcess]: Starting monitored process 203 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:23,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (203)] Waiting until timeout for monitored process [2021-10-21 20:13:23,072 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 [2021-10-21 20:13:23,079 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:23,079 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:23,079 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:23,079 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:23,080 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:23,080 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:23,082 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:23,101 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (203)] Ended with exit code 0 [2021-10-21 20:13:23,102 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:23,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:23,102 INFO L229 MonitoredProcess]: Starting monitored process 204 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:23,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (204)] Waiting until timeout for monitored process [2021-10-21 20:13:23,108 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:23,117 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:23,117 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:23,117 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:23,117 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:23,118 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:23,118 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:23,121 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:23,140 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (204)] Ended with exit code 0 [2021-10-21 20:13:23,140 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:23,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:23,141 INFO L229 MonitoredProcess]: Starting monitored process 205 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:23,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (205)] Waiting until timeout for monitored process [2021-10-21 20:13:23,142 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 [2021-10-21 20:13:23,149 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:23,150 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:23,150 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:23,150 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:23,156 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:23,156 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:23,172 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:13:23,187 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-10-21 20:13:23,187 INFO L444 ModelExtractionUtils]: 4 out of 31 variables were initially zero. Simplification set additionally 23 variables to zero. [2021-10-21 20:13:23,187 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:23,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:23,188 INFO L229 MonitoredProcess]: Starting monitored process 206 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:23,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (206)] Waiting until timeout for monitored process [2021-10-21 20:13:23,189 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:13:23,197 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 20:13:23,197 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:13:23,197 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~nc_A~0, ULTIMATE.start_main_~j~0) = -1*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~nc_A~0 + 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2021-10-21 20:13:23,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (205)] Ended with exit code 0 [2021-10-21 20:13:23,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (206)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:23,581 INFO L297 tatePredicateManager]: 68 out of 68 supporting invariants were superfluous and have been removed [2021-10-21 20:13:23,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:23,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:13:23,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:13:23,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:13:23,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:13:23,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 20:13:23,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:13:23,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:13:23,799 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 20:13:23,799 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 81 states and 96 transitions. cyclomatic complexity: 24 Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:23,825 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 81 states and 96 transitions. cyclomatic complexity: 24. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 119 states and 149 transitions. Complement of second has 6 states. [2021-10-21 20:13:23,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-21 20:13:23,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:23,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2021-10-21 20:13:23,827 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 49 letters. Loop has 2 letters. [2021-10-21 20:13:23,827 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:13:23,827 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 51 letters. Loop has 2 letters. [2021-10-21 20:13:23,827 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:13:23,827 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 49 letters. Loop has 4 letters. [2021-10-21 20:13:23,827 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:13:23,827 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 119 states and 149 transitions. [2021-10-21 20:13:23,829 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:13:23,829 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 119 states to 76 states and 89 transitions. [2021-10-21 20:13:23,829 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2021-10-21 20:13:23,829 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41 [2021-10-21 20:13:23,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 76 states and 89 transitions. [2021-10-21 20:13:23,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:13:23,830 INFO L681 BuchiCegarLoop]: Abstraction has 76 states and 89 transitions. [2021-10-21 20:13:23,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states and 89 transitions. [2021-10-21 20:13:23,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 70. [2021-10-21 20:13:23,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 70 states have (on average 1.1714285714285715) internal successors, (82), 69 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:23,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 82 transitions. [2021-10-21 20:13:23,832 INFO L704 BuchiCegarLoop]: Abstraction has 70 states and 82 transitions. [2021-10-21 20:13:23,832 INFO L587 BuchiCegarLoop]: Abstraction has 70 states and 82 transitions. [2021-10-21 20:13:23,832 INFO L425 BuchiCegarLoop]: ======== Iteration 22============ [2021-10-21 20:13:23,833 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 70 states and 82 transitions. [2021-10-21 20:13:23,833 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:13:23,833 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:13:23,833 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:13:23,834 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:13:23,834 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:13:23,834 INFO L791 eck$LassoCheckResult]: Stem: 6521#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(11); 6522#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 6534#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 6536#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 6545#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 6571#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 6570#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 6569#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 6568#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 6567#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 6566#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 6565#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 6564#L35-3 assume !(main_~i~0 < 5); 6529#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 6530#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 6517#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 6518#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 6538#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 6563#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 6562#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 6561#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 6559#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 6557#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 6555#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 6554#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 6551#L39-3 assume !(main_~i~0 < 5); 6544#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 6537#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 6523#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 6524#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 6525#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 6526#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 6560#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 6558#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 6556#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 6553#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 6552#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 6535#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 6527#L44-4 main_~nc_B~0 := 0; 6528#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 6542#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 6543#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 6540#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 6541#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 6550#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 6549#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 6539#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 6519#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 6520#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 6581#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 6580#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 6579#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 6578#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 6577#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 6572#L57-2 [2021-10-21 20:13:23,835 INFO L793 eck$LassoCheckResult]: Loop: 6572#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 6573#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 6572#L57-2 [2021-10-21 20:13:23,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:23,835 INFO L82 PathProgramCache]: Analyzing trace with hash 752600730, now seen corresponding path program 5 times [2021-10-21 20:13:23,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:23,835 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572481363] [2021-10-21 20:13:23,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:23,836 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:23,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:13:23,955 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 12 proven. 20 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-10-21 20:13:23,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:13:23,956 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572481363] [2021-10-21 20:13:23,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572481363] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:13:23,956 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815576389] [2021-10-21 20:13:23,956 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-21 20:13:23,956 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:13:23,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:23,957 INFO L229 MonitoredProcess]: Starting monitored process 207 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:13:23,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (207)] Waiting until timeout for monitored process [2021-10-21 20:13:24,753 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-10-21 20:13:24,753 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:13:24,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-21 20:13:24,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:13:24,963 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 20 proven. 12 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-10-21 20:13:24,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [815576389] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:13:24,963 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:13:24,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2021-10-21 20:13:24,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740019452] [2021-10-21 20:13:24,964 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:13:24,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:24,965 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 9 times [2021-10-21 20:13:24,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:24,965 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905204803] [2021-10-21 20:13:24,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:24,965 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:24,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:24,988 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:13:24,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:24,998 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:13:25,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:13:25,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-21 20:13:25,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=150, Unknown=0, NotChecked=0, Total=240 [2021-10-21 20:13:25,086 INFO L87 Difference]: Start difference. First operand 70 states and 82 transitions. cyclomatic complexity: 20 Second operand has 16 states, 16 states have (on average 3.0) internal successors, (48), 16 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:25,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:13:25,163 INFO L93 Difference]: Finished difference Result 76 states and 88 transitions. [2021-10-21 20:13:25,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-21 20:13:25,163 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 76 states and 88 transitions. [2021-10-21 20:13:25,164 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:13:25,165 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 76 states to 74 states and 86 transitions. [2021-10-21 20:13:25,165 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2021-10-21 20:13:25,165 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2021-10-21 20:13:25,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 74 states and 86 transitions. [2021-10-21 20:13:25,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:13:25,165 INFO L681 BuchiCegarLoop]: Abstraction has 74 states and 86 transitions. [2021-10-21 20:13:25,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states and 86 transitions. [2021-10-21 20:13:25,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 72. [2021-10-21 20:13:25,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 72 states have (on average 1.1666666666666667) internal successors, (84), 71 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) [2021-10-21 20:13:25,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 84 transitions. [2021-10-21 20:13:25,167 INFO L704 BuchiCegarLoop]: Abstraction has 72 states and 84 transitions. [2021-10-21 20:13:25,167 INFO L587 BuchiCegarLoop]: Abstraction has 72 states and 84 transitions. [2021-10-21 20:13:25,167 INFO L425 BuchiCegarLoop]: ======== Iteration 23============ [2021-10-21 20:13:25,167 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 72 states and 84 transitions. [2021-10-21 20:13:25,168 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:13:25,168 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:13:25,168 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:13:25,172 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 5, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:13:25,173 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:13:25,173 INFO L791 eck$LassoCheckResult]: Stem: 6845#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(11); 6846#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 6858#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 6861#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 6870#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 6893#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 6892#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 6891#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 6890#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 6889#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 6887#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 6885#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 6883#L35-3 assume !(main_~i~0 < 5); 6853#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 6854#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 6841#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 6842#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 6863#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 6888#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 6886#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 6884#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 6882#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 6881#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 6880#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 6879#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 6876#L39-3 assume !(main_~i~0 < 5); 6869#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 6862#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 6847#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 6848#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 6849#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 6850#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 6860#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 6897#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 6896#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 6878#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 6877#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 6859#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 6851#L44-4 main_~nc_B~0 := 0; 6852#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 6867#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 6868#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 6865#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 6866#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 6895#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 6894#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 6875#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 6874#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 6864#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 6843#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 6844#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 6912#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 6911#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 6908#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 6905#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 6904#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 6898#L57-2 [2021-10-21 20:13:25,173 INFO L793 eck$LassoCheckResult]: Loop: 6898#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 6899#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 6898#L57-2 [2021-10-21 20:13:25,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:25,174 INFO L82 PathProgramCache]: Analyzing trace with hash 735069909, now seen corresponding path program 6 times [2021-10-21 20:13:25,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:25,174 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907733065] [2021-10-21 20:13:25,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:25,174 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:25,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:25,272 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:13:25,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:25,328 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:13:25,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:25,333 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 10 times [2021-10-21 20:13:25,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:25,333 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724981923] [2021-10-21 20:13:25,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:25,333 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:25,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:25,357 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:13:25,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:25,360 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:13:25,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:25,364 INFO L82 PathProgramCache]: Analyzing trace with hash 2027548600, now seen corresponding path program 7 times [2021-10-21 20:13:25,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:25,365 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839227977] [2021-10-21 20:13:25,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:25,365 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:25,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:25,449 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:13:25,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:25,500 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:13:33,984 WARN L207 SmtUtils]: Spent 8.38 s on a formula simplification. DAG size of input: 440 DAG size of output: 321 [2021-10-21 20:13:35,275 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:13:35,275 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:13:35,275 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:13:35,275 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:13:35,275 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:13:35,275 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:35,275 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:13:35,275 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:13:35,275 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-2.i_Iteration23_Lasso [2021-10-21 20:13:35,275 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:13:35,275 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:13:35,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:35,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:35,282 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:35,284 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:35,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:35,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:35,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:36,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:36,842 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:36,844 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:36,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:36,847 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:36,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:36,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:36,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:36,853 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:36,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:36,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:36,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:36,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:37,046 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2021-10-21 20:13:42,153 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:13:42,154 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:13:42,154 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:42,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:42,164 INFO L229 MonitoredProcess]: Starting monitored process 208 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:42,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (208)] Waiting until timeout for monitored process [2021-10-21 20:13:42,189 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 [2021-10-21 20:13:42,198 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:42,198 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:13:42,198 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:42,198 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:42,198 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:42,199 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:13:42,199 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:13:42,220 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:42,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (208)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:42,248 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:42,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:42,249 INFO L229 MonitoredProcess]: Starting monitored process 209 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:42,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (209)] Waiting until timeout for monitored process [2021-10-21 20:13:42,250 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:42,256 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:42,256 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:13:42,257 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:42,257 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:42,257 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:42,257 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:13:42,257 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:13:42,258 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:42,276 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (209)] Ended with exit code 0 [2021-10-21 20:13:42,276 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:42,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:42,277 INFO L229 MonitoredProcess]: Starting monitored process 210 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:42,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (210)] Waiting until timeout for monitored process [2021-10-21 20:13:42,278 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:42,285 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:42,285 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:42,285 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:42,285 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:42,286 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:42,286 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:42,288 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:42,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (210)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:42,306 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:42,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:42,307 INFO L229 MonitoredProcess]: Starting monitored process 211 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:42,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (211)] Waiting until timeout for monitored process [2021-10-21 20:13:42,308 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:42,315 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:42,315 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:42,315 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:42,315 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:42,316 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:42,316 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:42,325 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:42,344 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (211)] Ended with exit code 0 [2021-10-21 20:13:42,344 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:42,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:42,344 INFO L229 MonitoredProcess]: Starting monitored process 212 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:42,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (212)] Waiting until timeout for monitored process [2021-10-21 20:13:42,345 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 [2021-10-21 20:13:42,352 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:42,352 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:13:42,352 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:42,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:42,352 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:42,353 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:13:42,353 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:13:42,354 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:42,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (212)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:42,372 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:42,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:42,374 INFO L229 MonitoredProcess]: Starting monitored process 213 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:42,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (213)] Waiting until timeout for monitored process [2021-10-21 20:13:42,377 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:42,383 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:42,384 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:13:42,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:42,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:42,384 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:42,384 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:13:42,384 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:13:42,385 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:42,403 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (213)] Ended with exit code 0 [2021-10-21 20:13:42,404 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:42,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:42,404 INFO L229 MonitoredProcess]: Starting monitored process 214 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:42,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (214)] Waiting until timeout for monitored process [2021-10-21 20:13:42,408 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:42,415 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:42,416 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:42,416 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:42,416 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:42,416 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:42,417 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:42,419 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:42,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (214)] Ended with exit code 0 [2021-10-21 20:13:42,437 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:42,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:42,437 INFO L229 MonitoredProcess]: Starting monitored process 215 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:42,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (215)] Waiting until timeout for monitored process [2021-10-21 20:13:42,438 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 [2021-10-21 20:13:42,445 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:42,445 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:42,445 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:42,445 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:42,446 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:42,446 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:42,448 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:42,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (215)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:42,466 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:42,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:42,467 INFO L229 MonitoredProcess]: Starting monitored process 216 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:42,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (216)] Waiting until timeout for monitored process [2021-10-21 20:13:42,468 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 [2021-10-21 20:13:42,475 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:42,475 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:42,475 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:42,475 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:42,477 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:42,477 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:42,480 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:42,498 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (216)] Ended with exit code 0 [2021-10-21 20:13:42,498 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:42,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:42,499 INFO L229 MonitoredProcess]: Starting monitored process 217 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:42,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (217)] Waiting until timeout for monitored process [2021-10-21 20:13:42,501 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:42,508 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:42,508 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:42,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:42,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:42,509 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:42,509 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:42,511 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:42,529 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (217)] Ended with exit code 0 [2021-10-21 20:13:42,529 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:42,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:42,530 INFO L229 MonitoredProcess]: Starting monitored process 218 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:42,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (218)] Waiting until timeout for monitored process [2021-10-21 20:13:42,531 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:42,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:42,537 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:13:42,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:42,537 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:42,538 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:42,538 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:13:42,538 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:13:42,539 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:42,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (218)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:42,557 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:42,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:42,557 INFO L229 MonitoredProcess]: Starting monitored process 219 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:42,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (219)] Waiting until timeout for monitored process [2021-10-21 20:13:42,558 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 [2021-10-21 20:13:42,565 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:42,565 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:42,565 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:42,565 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:42,566 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:42,566 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:42,568 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:42,586 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (219)] Ended with exit code 0 [2021-10-21 20:13:42,586 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:42,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:42,587 INFO L229 MonitoredProcess]: Starting monitored process 220 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:42,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (220)] Waiting until timeout for monitored process [2021-10-21 20:13:42,587 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:42,594 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:42,594 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:42,594 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:42,594 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:42,595 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:42,595 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:42,597 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:42,615 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (220)] Ended with exit code 0 [2021-10-21 20:13:42,615 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:42,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:42,616 INFO L229 MonitoredProcess]: Starting monitored process 221 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:42,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (221)] Waiting until timeout for monitored process [2021-10-21 20:13:42,616 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 [2021-10-21 20:13:42,623 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:42,623 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:42,623 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:42,623 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:42,624 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:42,624 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:42,627 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:42,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (221)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:42,645 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:42,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:42,646 INFO L229 MonitoredProcess]: Starting monitored process 222 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:42,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (222)] Waiting until timeout for monitored process [2021-10-21 20:13:42,647 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:42,653 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:42,653 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:42,653 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:42,653 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:42,654 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:42,654 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:42,656 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:42,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (222)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:42,674 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:42,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:42,675 INFO L229 MonitoredProcess]: Starting monitored process 223 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:42,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (223)] Waiting until timeout for monitored process [2021-10-21 20:13:42,676 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:42,682 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:42,682 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:42,682 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:42,683 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:42,684 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:42,684 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:42,694 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:42,725 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (223)] Ended with exit code 0 [2021-10-21 20:13:42,726 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:42,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:42,726 INFO L229 MonitoredProcess]: Starting monitored process 224 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:42,728 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:42,737 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:42,737 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:42,737 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:42,737 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:42,738 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:42,738 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:42,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (224)] Waiting until timeout for monitored process [2021-10-21 20:13:42,757 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:42,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (224)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:42,789 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:42,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:42,793 INFO L229 MonitoredProcess]: Starting monitored process 225 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:42,795 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:42,803 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:42,803 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-10-21 20:13:42,803 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:42,804 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:42,805 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-10-21 20:13:42,805 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:42,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (225)] Waiting until timeout for monitored process [2021-10-21 20:13:42,824 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:42,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (225)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:42,857 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:42,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:42,858 INFO L229 MonitoredProcess]: Starting monitored process 226 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:42,861 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:42,870 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:42,871 INFO L203 nArgumentSynthesizer]: 72 stem disjuncts [2021-10-21 20:13:42,871 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:42,871 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:42,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (226)] Waiting until timeout for monitored process [2021-10-21 20:13:42,982 INFO L401 nArgumentSynthesizer]: We have 148 Motzkin's Theorem applications. [2021-10-21 20:13:42,982 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:43,199 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:43,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (226)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:43,233 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:43,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:43,234 INFO L229 MonitoredProcess]: Starting monitored process 227 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:43,237 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:43,246 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:43,246 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:13:43,247 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:43,247 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:43,247 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:43,247 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:13:43,247 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:13:43,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (227)] Waiting until timeout for monitored process [2021-10-21 20:13:43,259 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:43,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (227)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:43,291 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:43,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:43,292 INFO L229 MonitoredProcess]: Starting monitored process 228 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:43,294 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:43,303 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:43,303 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:43,303 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:43,303 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:43,310 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:43,310 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:43,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (228)] Waiting until timeout for monitored process [2021-10-21 20:13:43,333 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:13:43,366 INFO L443 ModelExtractionUtils]: Simplification made 19 calls to the SMT solver. [2021-10-21 20:13:43,366 INFO L444 ModelExtractionUtils]: 3 out of 31 variables were initially zero. Simplification set additionally 23 variables to zero. [2021-10-21 20:13:43,366 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:43,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:43,367 INFO L229 MonitoredProcess]: Starting monitored process 229 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:43,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (229)] Waiting until timeout for monitored process [2021-10-21 20:13:43,368 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:13:43,376 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-10-21 20:13:43,376 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:13:43,376 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_10, ULTIMATE.start_main_~i~0) = 4*v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_10 - 5*ULTIMATE.start_main_~i~0 Supporting invariants [-5*ULTIMATE.start_main_~nc_B~0 + 4*v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_10 >= 0] [2021-10-21 20:13:43,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (228)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:43,782 INFO L297 tatePredicateManager]: 67 out of 70 supporting invariants were superfluous and have been removed [2021-10-21 20:13:43,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:43,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:13:43,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 32 conjunts are in the unsatisfiable core [2021-10-21 20:13:43,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:13:44,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (229)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:44,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:13:44,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-21 20:13:44,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:13:44,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:13:44,968 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.17 stem predicates 2 loop predicates [2021-10-21 20:13:44,968 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 72 states and 84 transitions. cyclomatic complexity: 20 Second operand has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 19 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) [2021-10-21 20:13:46,133 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 72 states and 84 transitions. cyclomatic complexity: 20. Second operand has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 19 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) Result 134 states and 165 transitions. Complement of second has 26 states. [2021-10-21 20:13:46,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 24 states 21 stem states 1 non-accepting loop states 2 accepting loop states [2021-10-21 20:13:46,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 19 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) [2021-10-21 20:13:46,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 78 transitions. [2021-10-21 20:13:46,144 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 24 states and 78 transitions. Stem has 56 letters. Loop has 2 letters. [2021-10-21 20:13:46,145 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:13:46,145 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 24 states and 78 transitions. Stem has 58 letters. Loop has 2 letters. [2021-10-21 20:13:46,145 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:13:46,145 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 24 states and 78 transitions. Stem has 56 letters. Loop has 4 letters. [2021-10-21 20:13:46,145 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:13:46,145 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 134 states and 165 transitions. [2021-10-21 20:13:46,146 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:13:46,147 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 134 states to 126 states and 155 transitions. [2021-10-21 20:13:46,148 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 53 [2021-10-21 20:13:46,148 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2021-10-21 20:13:46,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 126 states and 155 transitions. [2021-10-21 20:13:46,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:13:46,148 INFO L681 BuchiCegarLoop]: Abstraction has 126 states and 155 transitions. [2021-10-21 20:13:46,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states and 155 transitions. [2021-10-21 20:13:46,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 94. [2021-10-21 20:13:46,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 94 states have (on average 1.1914893617021276) internal successors, (112), 93 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:46,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 112 transitions. [2021-10-21 20:13:46,151 INFO L704 BuchiCegarLoop]: Abstraction has 94 states and 112 transitions. [2021-10-21 20:13:46,151 INFO L587 BuchiCegarLoop]: Abstraction has 94 states and 112 transitions. [2021-10-21 20:13:46,152 INFO L425 BuchiCegarLoop]: ======== Iteration 24============ [2021-10-21 20:13:46,152 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 94 states and 112 transitions. [2021-10-21 20:13:46,152 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:13:46,152 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:13:46,153 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:13:46,153 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [6, 5, 5, 5, 5, 5, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:13:46,153 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:13:46,153 INFO L791 eck$LassoCheckResult]: Stem: 7609#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(11); 7610#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 7622#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 7625#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 7632#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 7652#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 7650#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 7648#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 7646#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 7644#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 7642#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 7640#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 7638#L35-3 assume !(main_~i~0 < 5); 7617#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 7618#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 7605#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 7606#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 7627#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 7651#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 7649#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 7647#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 7645#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 7643#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 7641#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 7639#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 7637#L39-3 assume !(main_~i~0 < 5); 7633#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 7626#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 7611#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 7612#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 7613#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 7614#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 7624#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 7657#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 7656#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 7655#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 7653#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 7654#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 7696#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 7695#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 7694#L44-4 main_~nc_B~0 := 0; 7693#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 7692#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 7691#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 7690#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 7689#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 7688#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 7660#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 7659#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 7658#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 7628#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 7607#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 7608#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 7698#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 7697#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 7673#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 7671#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 7672#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 7667#L57-2 [2021-10-21 20:13:46,154 INFO L793 eck$LassoCheckResult]: Loop: 7667#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 7668#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 7667#L57-2 [2021-10-21 20:13:46,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:46,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1339949702, now seen corresponding path program 8 times [2021-10-21 20:13:46,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:46,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639591220] [2021-10-21 20:13:46,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:46,155 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:46,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:13:46,279 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 20 proven. 30 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-10-21 20:13:46,279 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:13:46,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639591220] [2021-10-21 20:13:46,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639591220] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:13:46,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869599706] [2021-10-21 20:13:46,280 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 20:13:46,280 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:13:46,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:46,281 INFO L229 MonitoredProcess]: Starting monitored process 230 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:13:46,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (230)] Waiting until timeout for monitored process [2021-10-21 20:13:46,906 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 20:13:46,906 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:13:46,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-21 20:13:46,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:13:47,125 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 30 proven. 20 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-10-21 20:13:47,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [869599706] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:13:47,125 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:13:47,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 19 [2021-10-21 20:13:47,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335659717] [2021-10-21 20:13:47,125 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:13:47,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:47,126 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 11 times [2021-10-21 20:13:47,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:47,126 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071510792] [2021-10-21 20:13:47,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:47,126 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:47,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:47,132 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:13:47,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:47,134 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:13:47,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:13:47,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-21 20:13:47,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=216, Unknown=0, NotChecked=0, Total=342 [2021-10-21 20:13:47,218 INFO L87 Difference]: Start difference. First operand 94 states and 112 transitions. cyclomatic complexity: 27 Second operand has 19 states, 19 states have (on average 2.8421052631578947) internal successors, (54), 19 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:47,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:13:47,394 INFO L93 Difference]: Finished difference Result 126 states and 155 transitions. [2021-10-21 20:13:47,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-21 20:13:47,394 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 126 states and 155 transitions. [2021-10-21 20:13:47,395 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-10-21 20:13:47,396 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 126 states to 124 states and 153 transitions. [2021-10-21 20:13:47,396 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 55 [2021-10-21 20:13:47,396 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 55 [2021-10-21 20:13:47,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 124 states and 153 transitions. [2021-10-21 20:13:47,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:13:47,397 INFO L681 BuchiCegarLoop]: Abstraction has 124 states and 153 transitions. [2021-10-21 20:13:47,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states and 153 transitions. [2021-10-21 20:13:47,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 96. [2021-10-21 20:13:47,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 96 states have (on average 1.1875) internal successors, (114), 95 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:47,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 114 transitions. [2021-10-21 20:13:47,400 INFO L704 BuchiCegarLoop]: Abstraction has 96 states and 114 transitions. [2021-10-21 20:13:47,400 INFO L587 BuchiCegarLoop]: Abstraction has 96 states and 114 transitions. [2021-10-21 20:13:47,400 INFO L425 BuchiCegarLoop]: ======== Iteration 25============ [2021-10-21 20:13:47,400 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 96 states and 114 transitions. [2021-10-21 20:13:47,401 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:13:47,401 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:13:47,401 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:13:47,401 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [6, 5, 5, 5, 5, 5, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:13:47,402 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:13:47,402 INFO L791 eck$LassoCheckResult]: Stem: 8030#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(11); 8031#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 8043#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8046#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8055#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8075#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8073#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8071#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8069#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8067#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8065#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8063#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8061#L35-3 assume !(main_~i~0 < 5); 8038#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 8039#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 8028#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8029#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8048#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8074#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8072#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8070#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8068#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8066#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8064#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8062#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8060#L39-3 assume !(main_~i~0 < 5); 8056#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 8047#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 8032#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 8033#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 8034#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 8035#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 8045#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 8080#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 8078#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 8079#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 8095#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 8094#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 8093#L44-4 main_~nc_B~0 := 0; 8052#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8053#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 8092#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8088#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 8089#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8084#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 8085#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8118#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 8117#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8082#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 8081#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8049#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 8026#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 8027#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 8102#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 8103#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 8105#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 8107#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 8106#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 8098#L57-2 [2021-10-21 20:13:47,402 INFO L793 eck$LassoCheckResult]: Loop: 8098#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 8099#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 8098#L57-2 [2021-10-21 20:13:47,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:47,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1067820112, now seen corresponding path program 9 times [2021-10-21 20:13:47,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:47,403 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413024599] [2021-10-21 20:13:47,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:47,403 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:47,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:13:47,538 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 21 proven. 9 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2021-10-21 20:13:47,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:13:47,538 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413024599] [2021-10-21 20:13:47,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413024599] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:13:47,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086188817] [2021-10-21 20:13:47,539 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 20:13:47,539 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:13:47,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:47,540 INFO L229 MonitoredProcess]: Starting monitored process 231 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:13:47,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (231)] Waiting until timeout for monitored process [2021-10-21 20:13:48,468 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-10-21 20:13:48,469 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:13:48,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-21 20:13:48,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:13:48,483 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-21 20:13:48,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2021-10-21 20:13:48,901 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2021-10-21 20:13:48,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2086188817] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:13:48,901 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 20:13:48,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2021-10-21 20:13:48,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433195428] [2021-10-21 20:13:48,902 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:13:48,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:48,902 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 12 times [2021-10-21 20:13:48,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:48,902 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433246467] [2021-10-21 20:13:48,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:48,902 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:48,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:48,908 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:13:48,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:48,910 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:13:48,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:13:48,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 20:13:48,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2021-10-21 20:13:48,974 INFO L87 Difference]: Start difference. First operand 96 states and 114 transitions. cyclomatic complexity: 27 Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 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) [2021-10-21 20:13:49,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:13:49,032 INFO L93 Difference]: Finished difference Result 87 states and 99 transitions. [2021-10-21 20:13:49,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 20:13:49,032 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 87 states and 99 transitions. [2021-10-21 20:13:49,033 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:13:49,034 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 87 states to 72 states and 82 transitions. [2021-10-21 20:13:49,034 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2021-10-21 20:13:49,034 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 56 [2021-10-21 20:13:49,034 INFO L73 IsDeterministic]: Start isDeterministic. Operand 72 states and 82 transitions. [2021-10-21 20:13:49,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:13:49,034 INFO L681 BuchiCegarLoop]: Abstraction has 72 states and 82 transitions. [2021-10-21 20:13:49,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states and 82 transitions. [2021-10-21 20:13:49,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2021-10-21 20:13:49,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 72 states have (on average 1.1388888888888888) internal successors, (82), 71 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:49,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 82 transitions. [2021-10-21 20:13:49,036 INFO L704 BuchiCegarLoop]: Abstraction has 72 states and 82 transitions. [2021-10-21 20:13:49,036 INFO L587 BuchiCegarLoop]: Abstraction has 72 states and 82 transitions. [2021-10-21 20:13:49,036 INFO L425 BuchiCegarLoop]: ======== Iteration 26============ [2021-10-21 20:13:49,036 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 72 states and 82 transitions. [2021-10-21 20:13:49,037 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:13:49,037 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:13:49,037 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:13:49,038 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:13:49,038 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:13:49,039 INFO L791 eck$LassoCheckResult]: Stem: 8403#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(11); 8404#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 8416#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8426#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8418#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8419#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8456#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8455#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8454#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8453#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8452#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8451#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8450#L35-3 assume !(main_~i~0 < 5); 8409#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 8410#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 8420#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8423#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8399#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8400#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8449#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8447#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8444#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8441#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8438#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8435#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8432#L39-3 assume !(main_~i~0 < 5); 8427#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 8421#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 8422#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 8417#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 8405#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 8406#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 8446#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 8443#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 8440#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 8437#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 8434#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 8431#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 8407#L44-4 main_~nc_B~0 := 0; 8408#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8424#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 8425#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8448#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 8445#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8442#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 8439#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8436#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 8433#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8430#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 8401#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 8402#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 8465#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 8464#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 8428#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 8429#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 8412#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 8463#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 8462#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 8460#L57-2 [2021-10-21 20:13:49,039 INFO L793 eck$LassoCheckResult]: Loop: 8460#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 8461#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 8460#L57-2 [2021-10-21 20:13:49,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:49,039 INFO L82 PathProgramCache]: Analyzing trace with hash 252543160, now seen corresponding path program 10 times [2021-10-21 20:13:49,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:49,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629955517] [2021-10-21 20:13:49,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:49,040 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:49,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:49,074 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:13:49,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:49,109 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:13:49,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:49,109 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 13 times [2021-10-21 20:13:49,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:49,110 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643732148] [2021-10-21 20:13:49,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:49,110 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:49,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:49,117 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:13:49,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:49,120 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:13:49,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:49,120 INFO L82 PathProgramCache]: Analyzing trace with hash -2119156517, now seen corresponding path program 11 times [2021-10-21 20:13:49,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:49,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452802144] [2021-10-21 20:13:49,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:49,121 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:49,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:49,243 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:13:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:49,282 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:00,990 WARN L207 SmtUtils]: Spent 11.63 s on a formula simplification. DAG size of input: 463 DAG size of output: 334 [2021-10-21 20:14:02,371 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:14:02,371 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:14:02,371 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:14:02,371 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:14:02,371 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:14:02,371 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:02,371 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:14:02,371 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:14:02,371 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-2.i_Iteration26_Lasso [2021-10-21 20:14:02,371 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:14:02,371 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:14:02,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:02,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:02,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:02,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:04,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:04,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:04,519 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:04,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:04,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:04,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:04,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:04,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:04,528 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:04,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:04,532 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:04,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:04,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:04,537 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:04,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:04,540 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:04,760 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-10-21 20:14:07,904 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:14:07,905 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:14:07,905 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:07,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:07,906 INFO L229 MonitoredProcess]: Starting monitored process 232 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:07,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (232)] Waiting until timeout for monitored process [2021-10-21 20:14:07,907 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 [2021-10-21 20:14:07,914 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:07,914 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:14:07,915 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:07,915 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:07,915 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:07,915 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:14:07,915 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:14:07,916 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:07,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (232)] Ended with exit code 0 [2021-10-21 20:14:07,935 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:07,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:07,935 INFO L229 MonitoredProcess]: Starting monitored process 233 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:07,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (233)] Waiting until timeout for monitored process [2021-10-21 20:14:07,936 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:07,943 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:07,943 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:07,943 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:07,943 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:07,944 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:07,944 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:07,946 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:07,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (233)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:07,965 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:07,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:07,966 INFO L229 MonitoredProcess]: Starting monitored process 234 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:07,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (234)] Waiting until timeout for monitored process [2021-10-21 20:14:07,967 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:07,974 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:07,974 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:14:07,974 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:07,974 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:07,974 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:07,974 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:14:07,974 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:14:07,975 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:07,994 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (234)] Ended with exit code 0 [2021-10-21 20:14:07,994 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:07,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:07,995 INFO L229 MonitoredProcess]: Starting monitored process 235 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:07,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (235)] Waiting until timeout for monitored process [2021-10-21 20:14:07,996 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:08,002 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:08,002 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:08,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:08,003 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:08,004 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:08,004 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:08,016 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:08,035 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (235)] Ended with exit code 0 [2021-10-21 20:14:08,035 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:08,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:08,036 INFO L229 MonitoredProcess]: Starting monitored process 236 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:08,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (236)] Waiting until timeout for monitored process [2021-10-21 20:14:08,037 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:08,044 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:08,044 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:08,044 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:08,044 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:08,045 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:08,045 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:08,049 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:08,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (236)] Ended with exit code 0 [2021-10-21 20:14:08,069 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:08,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:08,071 INFO L229 MonitoredProcess]: Starting monitored process 237 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:08,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (237)] Waiting until timeout for monitored process [2021-10-21 20:14:08,072 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 [2021-10-21 20:14:08,079 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:08,079 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:14:08,079 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:08,079 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:08,079 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:08,083 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:14:08,083 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:14:08,084 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:08,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (237)] Ended with exit code 0 [2021-10-21 20:14:08,103 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:08,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:08,104 INFO L229 MonitoredProcess]: Starting monitored process 238 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:08,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (238)] Waiting until timeout for monitored process [2021-10-21 20:14:08,105 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:08,112 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:08,112 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:08,112 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:08,112 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:08,113 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:08,113 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:08,116 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:08,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (238)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:08,135 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:08,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:08,136 INFO L229 MonitoredProcess]: Starting monitored process 239 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:08,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (239)] Waiting until timeout for monitored process [2021-10-21 20:14:08,137 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:08,143 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:08,143 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-10-21 20:14:08,143 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:08,143 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:08,145 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-10-21 20:14:08,145 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:08,161 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:08,180 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (239)] Ended with exit code 0 [2021-10-21 20:14:08,180 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:08,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:08,181 INFO L229 MonitoredProcess]: Starting monitored process 240 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:08,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (240)] Waiting until timeout for monitored process [2021-10-21 20:14:08,182 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:08,189 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:08,189 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:08,189 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:08,189 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:08,200 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:08,200 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:08,202 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:08,221 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (240)] Ended with exit code 0 [2021-10-21 20:14:08,221 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:08,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:08,222 INFO L229 MonitoredProcess]: Starting monitored process 241 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:08,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (241)] Waiting until timeout for monitored process [2021-10-21 20:14:08,223 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 [2021-10-21 20:14:08,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:08,230 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:08,230 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:08,230 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:08,231 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:08,231 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:08,234 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:08,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (241)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:08,253 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:08,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:08,254 INFO L229 MonitoredProcess]: Starting monitored process 242 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:08,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (242)] Waiting until timeout for monitored process [2021-10-21 20:14:08,256 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:08,263 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:08,264 INFO L203 nArgumentSynthesizer]: 36 stem disjuncts [2021-10-21 20:14:08,264 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:08,264 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:08,323 INFO L401 nArgumentSynthesizer]: We have 76 Motzkin's Theorem applications. [2021-10-21 20:14:08,323 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:08,434 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:08,453 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (242)] Ended with exit code 0 [2021-10-21 20:14:08,453 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:08,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:08,454 INFO L229 MonitoredProcess]: Starting monitored process 243 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:08,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (243)] Waiting until timeout for monitored process [2021-10-21 20:14:08,455 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:08,462 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:08,462 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:08,462 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:08,462 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:08,463 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:08,463 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:08,465 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:08,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (243)] Ended with exit code 0 [2021-10-21 20:14:08,484 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:08,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:08,485 INFO L229 MonitoredProcess]: Starting monitored process 244 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:08,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (244)] Waiting until timeout for monitored process [2021-10-21 20:14:08,486 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:08,492 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:08,492 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-10-21 20:14:08,493 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:08,493 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:08,493 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-10-21 20:14:08,493 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:08,496 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:08,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (244)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:08,516 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:08,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:08,517 INFO L229 MonitoredProcess]: Starting monitored process 245 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:08,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (245)] Waiting until timeout for monitored process [2021-10-21 20:14:08,518 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 [2021-10-21 20:14:08,524 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:08,524 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:08,524 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:08,525 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:08,525 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:08,525 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:08,528 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:08,546 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (245)] Ended with exit code 0 [2021-10-21 20:14:08,547 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:08,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:08,547 INFO L229 MonitoredProcess]: Starting monitored process 246 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:08,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (246)] Waiting until timeout for monitored process [2021-10-21 20:14:08,549 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:08,556 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:08,556 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:08,556 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:08,556 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:08,562 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:08,562 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:08,577 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:14:08,597 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-10-21 20:14:08,597 INFO L444 ModelExtractionUtils]: 18 out of 31 variables were initially zero. Simplification set additionally 10 variables to zero. [2021-10-21 20:14:08,597 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:08,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:08,598 INFO L229 MonitoredProcess]: Starting monitored process 247 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:08,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (247)] Waiting until timeout for monitored process [2021-10-21 20:14:08,599 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:14:08,607 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 20:14:08,607 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:14:08,607 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_11, ULTIMATE.start_main_~i~0) = 7*v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_11 - 6*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-10-21 20:14:08,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (246)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:08,992 INFO L297 tatePredicateManager]: 73 out of 77 supporting invariants were superfluous and have been removed [2021-10-21 20:14:09,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:09,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:09,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 36 conjunts are in the unsatisfiable core [2021-10-21 20:14:09,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:09,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:09,939 WARN L261 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-21 20:14:09,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:09,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:14:09,993 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.11 stem predicates 2 loop predicates [2021-10-21 20:14:09,993 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 72 states and 82 transitions. cyclomatic complexity: 16 Second operand has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:10,162 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 72 states and 82 transitions. cyclomatic complexity: 16. Second operand has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 86 states and 103 transitions. Complement of second has 16 states. [2021-10-21 20:14:10,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 14 states 11 stem states 1 non-accepting loop states 2 accepting loop states [2021-10-21 20:14:10,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:10,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 41 transitions. [2021-10-21 20:14:10,163 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 41 transitions. Stem has 58 letters. Loop has 2 letters. [2021-10-21 20:14:10,163 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:10,163 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:14:10,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:10,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:10,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 36 conjunts are in the unsatisfiable core [2021-10-21 20:14:10,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:10,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (247)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:11,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:11,136 WARN L261 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-21 20:14:11,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:11,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:14:11,189 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.11 stem predicates 2 loop predicates [2021-10-21 20:14:11,189 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 72 states and 82 transitions. cyclomatic complexity: 16 Second operand has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:11,341 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 72 states and 82 transitions. cyclomatic complexity: 16. Second operand has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 86 states and 103 transitions. Complement of second has 16 states. [2021-10-21 20:14:11,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 14 states 11 stem states 1 non-accepting loop states 2 accepting loop states [2021-10-21 20:14:11,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:11,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 41 transitions. [2021-10-21 20:14:11,349 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 41 transitions. Stem has 58 letters. Loop has 2 letters. [2021-10-21 20:14:11,349 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:11,349 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:14:11,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:11,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:11,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 36 conjunts are in the unsatisfiable core [2021-10-21 20:14:11,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:12,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:12,361 WARN L261 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-21 20:14:12,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:12,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:14:12,413 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.11 stem predicates 2 loop predicates [2021-10-21 20:14:12,413 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 72 states and 82 transitions. cyclomatic complexity: 16 Second operand has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:12,591 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 72 states and 82 transitions. cyclomatic complexity: 16. Second operand has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 96 states and 117 transitions. Complement of second has 17 states. [2021-10-21 20:14:12,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 14 states 11 stem states 1 non-accepting loop states 2 accepting loop states [2021-10-21 20:14:12,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:12,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 45 transitions. [2021-10-21 20:14:12,592 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 45 transitions. Stem has 58 letters. Loop has 2 letters. [2021-10-21 20:14:12,592 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:12,592 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 45 transitions. Stem has 60 letters. Loop has 2 letters. [2021-10-21 20:14:12,592 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:12,592 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 45 transitions. Stem has 58 letters. Loop has 4 letters. [2021-10-21 20:14:12,592 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:12,592 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 96 states and 117 transitions. [2021-10-21 20:14:12,593 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:14:12,594 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 96 states to 90 states and 107 transitions. [2021-10-21 20:14:12,594 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2021-10-21 20:14:12,594 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2021-10-21 20:14:12,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 90 states and 107 transitions. [2021-10-21 20:14:12,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:14:12,595 INFO L681 BuchiCegarLoop]: Abstraction has 90 states and 107 transitions. [2021-10-21 20:14:12,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states and 107 transitions. [2021-10-21 20:14:12,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 76. [2021-10-21 20:14:12,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 76 states have (on average 1.1578947368421053) internal successors, (88), 75 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:12,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 88 transitions. [2021-10-21 20:14:12,596 INFO L704 BuchiCegarLoop]: Abstraction has 76 states and 88 transitions. [2021-10-21 20:14:12,596 INFO L587 BuchiCegarLoop]: Abstraction has 76 states and 88 transitions. [2021-10-21 20:14:12,596 INFO L425 BuchiCegarLoop]: ======== Iteration 27============ [2021-10-21 20:14:12,597 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 76 states and 88 transitions. [2021-10-21 20:14:12,597 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:14:12,597 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:14:12,597 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:14:12,598 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:14:12,598 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:14:12,598 INFO L791 eck$LassoCheckResult]: Stem: 9739#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(11); 9740#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 9752#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 9762#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 9754#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 9755#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 9792#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 9791#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 9790#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 9789#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 9788#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 9787#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 9786#L35-3 assume !(main_~i~0 < 5); 9745#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 9746#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 9756#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 9759#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 9735#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 9736#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 9785#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 9783#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 9780#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 9777#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 9774#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 9771#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 9768#L39-3 assume !(main_~i~0 < 5); 9763#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 9757#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 9758#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 9753#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 9741#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 9742#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 9782#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 9779#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 9776#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 9773#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 9770#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 9767#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 9743#L44-4 main_~nc_B~0 := 0; 9744#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 9760#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 9761#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 9784#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 9781#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 9778#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 9775#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 9772#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 9769#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 9766#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 9737#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 9738#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 9803#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 9806#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 9802#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 9801#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 9800#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 9799#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 9797#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 9795#L57-2 [2021-10-21 20:14:12,598 INFO L793 eck$LassoCheckResult]: Loop: 9795#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 9796#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 9795#L57-2 [2021-10-21 20:14:12,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:12,599 INFO L82 PathProgramCache]: Analyzing trace with hash 2025703480, now seen corresponding path program 12 times [2021-10-21 20:14:12,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:12,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825578072] [2021-10-21 20:14:12,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:12,599 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:12,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:12,630 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:14:12,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:12,692 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:12,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:12,693 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 14 times [2021-10-21 20:14:12,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:12,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367293934] [2021-10-21 20:14:12,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:12,694 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:12,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:12,703 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:14:12,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:12,705 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:12,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:12,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1080861787, now seen corresponding path program 13 times [2021-10-21 20:14:12,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:12,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785717384] [2021-10-21 20:14:12,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:12,706 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:12,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:12,739 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:14:12,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:12,772 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:19,938 WARN L207 SmtUtils]: Spent 7.08 s on a formula simplification. DAG size of input: 463 DAG size of output: 330 [2021-10-21 20:14:20,915 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:14:20,915 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:14:20,915 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:14:20,915 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:14:20,915 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:14:20,916 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:20,916 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:14:20,916 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:14:20,916 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-2.i_Iteration27_Lasso [2021-10-21 20:14:20,916 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:14:20,916 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:14:20,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:20,920 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:20,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:20,923 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:20,924 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:20,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:22,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:22,579 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:22,580 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:22,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:22,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:22,585 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:22,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:22,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:22,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:22,591 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:22,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:22,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:22,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:22,597 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:22,819 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-10-21 20:14:26,005 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:14:26,006 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:14:26,006 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:26,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:26,007 INFO L229 MonitoredProcess]: Starting monitored process 248 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:26,013 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:26,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:26,022 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:14:26,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:26,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:26,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:26,023 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:14:26,023 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:14:26,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (248)] Waiting until timeout for monitored process [2021-10-21 20:14:26,036 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:26,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (248)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:26,069 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:26,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:26,070 INFO L229 MonitoredProcess]: Starting monitored process 249 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:26,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (249)] Waiting until timeout for monitored process [2021-10-21 20:14:26,072 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 [2021-10-21 20:14:26,080 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:26,081 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:14:26,081 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:26,081 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:26,081 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:26,081 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:14:26,081 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:14:26,096 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:26,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (249)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:26,131 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:26,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:26,132 INFO L229 MonitoredProcess]: Starting monitored process 250 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:26,141 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:26,150 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:26,150 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:14:26,150 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:26,150 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:26,150 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:26,151 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:14:26,151 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:14:26,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (250)] Waiting until timeout for monitored process [2021-10-21 20:14:26,172 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:26,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (250)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:26,204 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:26,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:26,206 INFO L229 MonitoredProcess]: Starting monitored process 251 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:26,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (251)] Waiting until timeout for monitored process [2021-10-21 20:14:26,208 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:26,215 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:26,215 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:14:26,215 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:26,215 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:26,215 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:26,215 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:14:26,215 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:14:26,216 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:26,235 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (251)] Ended with exit code 0 [2021-10-21 20:14:26,235 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:26,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:26,236 INFO L229 MonitoredProcess]: Starting monitored process 252 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:26,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (252)] Waiting until timeout for monitored process [2021-10-21 20:14:26,237 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:26,243 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:26,244 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:26,244 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:26,244 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:26,245 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:26,245 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:26,247 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:26,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (252)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:26,266 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:26,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:26,266 INFO L229 MonitoredProcess]: Starting monitored process 253 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:26,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (253)] Waiting until timeout for monitored process [2021-10-21 20:14:26,267 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:26,274 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:26,274 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:26,274 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:26,274 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:26,275 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:26,275 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:26,277 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:26,295 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (253)] Ended with exit code 0 [2021-10-21 20:14:26,296 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:26,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:26,296 INFO L229 MonitoredProcess]: Starting monitored process 254 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:26,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (254)] Waiting until timeout for monitored process [2021-10-21 20:14:26,298 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:26,304 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:26,305 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-10-21 20:14:26,305 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:26,305 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:26,306 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-10-21 20:14:26,306 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:26,308 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:26,327 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (254)] Ended with exit code 0 [2021-10-21 20:14:26,327 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:26,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:26,328 INFO L229 MonitoredProcess]: Starting monitored process 255 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:26,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (255)] Waiting until timeout for monitored process [2021-10-21 20:14:26,329 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:26,336 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:26,336 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:26,336 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:26,336 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:26,337 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:26,337 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:26,340 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:26,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (255)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:26,358 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:26,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:26,359 INFO L229 MonitoredProcess]: Starting monitored process 256 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:26,363 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:26,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (256)] Waiting until timeout for monitored process [2021-10-21 20:14:26,370 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:26,370 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:26,370 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:26,370 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:26,371 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:26,371 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:26,374 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:26,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (256)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:26,392 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:26,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:26,393 INFO L229 MonitoredProcess]: Starting monitored process 257 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:26,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (257)] Waiting until timeout for monitored process [2021-10-21 20:14:26,394 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 [2021-10-21 20:14:26,401 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:26,401 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:14:26,401 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:26,401 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:26,401 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:26,401 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:14:26,401 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:14:26,404 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:26,422 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (257)] Ended with exit code 0 [2021-10-21 20:14:26,422 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:26,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:26,425 INFO L229 MonitoredProcess]: Starting monitored process 258 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:26,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (258)] Waiting until timeout for monitored process [2021-10-21 20:14:26,426 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:26,432 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:26,432 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:26,433 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:26,433 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:26,433 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:26,433 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:26,436 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:26,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (258)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:26,455 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:26,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:26,455 INFO L229 MonitoredProcess]: Starting monitored process 259 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:26,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (259)] Waiting until timeout for monitored process [2021-10-21 20:14:26,456 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 [2021-10-21 20:14:26,463 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:26,463 INFO L203 nArgumentSynthesizer]: 36 stem disjuncts [2021-10-21 20:14:26,463 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:26,464 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:26,530 INFO L401 nArgumentSynthesizer]: We have 76 Motzkin's Theorem applications. [2021-10-21 20:14:26,531 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:26,632 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:26,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (259)] Ended with exit code 0 [2021-10-21 20:14:26,651 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:26,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:26,652 INFO L229 MonitoredProcess]: Starting monitored process 260 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:26,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (260)] Waiting until timeout for monitored process [2021-10-21 20:14:26,653 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:26,660 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:26,660 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:26,660 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:26,660 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:26,661 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:26,661 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:26,663 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:26,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (260)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:26,682 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:26,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:26,683 INFO L229 MonitoredProcess]: Starting monitored process 261 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:26,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (261)] Waiting until timeout for monitored process [2021-10-21 20:14:26,684 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:26,690 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:26,691 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:26,691 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:26,691 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:26,692 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:26,692 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:26,696 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:26,715 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (261)] Ended with exit code 0 [2021-10-21 20:14:26,715 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:26,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:26,715 INFO L229 MonitoredProcess]: Starting monitored process 262 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:26,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (262)] Waiting until timeout for monitored process [2021-10-21 20:14:26,716 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:26,723 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:26,723 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:26,723 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:26,723 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:26,724 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:26,724 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:26,726 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:26,745 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (262)] Ended with exit code 0 [2021-10-21 20:14:26,746 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:26,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:26,746 INFO L229 MonitoredProcess]: Starting monitored process 263 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:26,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (263)] Waiting until timeout for monitored process [2021-10-21 20:14:26,747 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 [2021-10-21 20:14:26,754 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:26,754 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:26,754 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:26,754 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:26,755 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:26,755 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:26,757 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:26,776 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (263)] Ended with exit code 0 [2021-10-21 20:14:26,777 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:26,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:26,777 INFO L229 MonitoredProcess]: Starting monitored process 264 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:26,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (264)] Waiting until timeout for monitored process [2021-10-21 20:14:26,778 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 [2021-10-21 20:14:26,785 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:26,785 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:26,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:26,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:26,792 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:26,792 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:26,807 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:14:26,829 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2021-10-21 20:14:26,829 INFO L444 ModelExtractionUtils]: 17 out of 31 variables were initially zero. Simplification set additionally 11 variables to zero. [2021-10-21 20:14:26,830 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:26,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:26,830 INFO L229 MonitoredProcess]: Starting monitored process 265 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:26,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (265)] Waiting until timeout for monitored process [2021-10-21 20:14:26,831 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:14:26,841 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 20:14:26,841 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:14:26,841 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_12) = -2*ULTIMATE.start_main_~j~0 + 3*v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_12 Supporting invariants [] [2021-10-21 20:14:26,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (264)] Ended with exit code 0 [2021-10-21 20:14:27,243 INFO L297 tatePredicateManager]: 87 out of 89 supporting invariants were superfluous and have been removed [2021-10-21 20:14:27,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:27,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (265)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:27,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:27,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-21 20:14:27,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:28,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:28,082 WARN L261 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-21 20:14:28,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:28,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:14:28,123 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.11 stem predicates 2 loop predicates [2021-10-21 20:14:28,123 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 76 states and 88 transitions. cyclomatic complexity: 18 Second operand has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:28,313 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 76 states and 88 transitions. cyclomatic complexity: 18. Second operand has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 90 states and 109 transitions. Complement of second has 15 states. [2021-10-21 20:14:28,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 13 states 10 stem states 1 non-accepting loop states 2 accepting loop states [2021-10-21 20:14:28,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:28,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 41 transitions. [2021-10-21 20:14:28,314 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 41 transitions. Stem has 58 letters. Loop has 2 letters. [2021-10-21 20:14:28,314 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:28,314 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:14:28,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:28,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:28,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-21 20:14:28,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:29,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:29,090 WARN L261 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-21 20:14:29,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:29,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:14:29,132 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.11 stem predicates 2 loop predicates [2021-10-21 20:14:29,132 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 76 states and 88 transitions. cyclomatic complexity: 18 Second operand has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:29,311 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 76 states and 88 transitions. cyclomatic complexity: 18. Second operand has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 90 states and 109 transitions. Complement of second has 15 states. [2021-10-21 20:14:29,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 13 states 10 stem states 1 non-accepting loop states 2 accepting loop states [2021-10-21 20:14:29,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:29,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 41 transitions. [2021-10-21 20:14:29,312 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 41 transitions. Stem has 58 letters. Loop has 2 letters. [2021-10-21 20:14:29,312 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:29,312 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:14:29,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:29,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:29,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-21 20:14:29,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:30,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:30,110 WARN L261 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-21 20:14:30,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:30,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:14:30,151 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.11 stem predicates 2 loop predicates [2021-10-21 20:14:30,151 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 76 states and 88 transitions. cyclomatic complexity: 18 Second operand has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:30,330 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 76 states and 88 transitions. cyclomatic complexity: 18. Second operand has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 110 states and 138 transitions. Complement of second has 18 states. [2021-10-21 20:14:30,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 14 states 11 stem states 1 non-accepting loop states 2 accepting loop states [2021-10-21 20:14:30,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:30,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 49 transitions. [2021-10-21 20:14:30,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 49 transitions. Stem has 58 letters. Loop has 2 letters. [2021-10-21 20:14:30,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:30,332 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 49 transitions. Stem has 60 letters. Loop has 2 letters. [2021-10-21 20:14:30,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:30,332 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 49 transitions. Stem has 58 letters. Loop has 4 letters. [2021-10-21 20:14:30,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:30,333 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 110 states and 138 transitions. [2021-10-21 20:14:30,334 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:14:30,335 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 110 states to 102 states and 124 transitions. [2021-10-21 20:14:30,335 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2021-10-21 20:14:30,335 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 58 [2021-10-21 20:14:30,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 102 states and 124 transitions. [2021-10-21 20:14:30,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:14:30,335 INFO L681 BuchiCegarLoop]: Abstraction has 102 states and 124 transitions. [2021-10-21 20:14:30,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states and 124 transitions. [2021-10-21 20:14:30,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 81. [2021-10-21 20:14:30,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 81 states have (on average 1.1728395061728396) internal successors, (95), 80 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:30,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 95 transitions. [2021-10-21 20:14:30,338 INFO L704 BuchiCegarLoop]: Abstraction has 81 states and 95 transitions. [2021-10-21 20:14:30,338 INFO L587 BuchiCegarLoop]: Abstraction has 81 states and 95 transitions. [2021-10-21 20:14:30,338 INFO L425 BuchiCegarLoop]: ======== Iteration 28============ [2021-10-21 20:14:30,338 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 81 states and 95 transitions. [2021-10-21 20:14:30,339 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:14:30,339 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:14:30,339 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:14:30,339 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:14:30,340 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:14:30,340 INFO L791 eck$LassoCheckResult]: Stem: 11146#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(11); 11147#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 11159#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 11169#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 11161#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 11162#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 11200#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 11199#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 11198#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 11197#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 11196#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 11195#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 11194#L35-3 assume !(main_~i~0 < 5); 11152#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 11153#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 11163#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 11166#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 11142#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 11143#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 11193#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 11191#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 11188#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 11185#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 11182#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 11179#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 11176#L39-3 assume !(main_~i~0 < 5); 11170#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 11164#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 11165#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 11160#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 11148#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 11149#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 11190#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 11187#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 11184#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 11181#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 11178#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 11175#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 11150#L44-4 main_~nc_B~0 := 0; 11151#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 11167#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 11168#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 11192#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 11189#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 11186#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 11183#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 11180#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 11177#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 11174#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 11144#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 11145#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 11204#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 11203#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 11205#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 11221#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 11158#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 11172#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 11219#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 11208#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 11206#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 11201#L57-2 [2021-10-21 20:14:30,340 INFO L793 eck$LassoCheckResult]: Loop: 11201#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 11202#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 11201#L57-2 [2021-10-21 20:14:30,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:30,340 INFO L82 PathProgramCache]: Analyzing trace with hash -2119154595, now seen corresponding path program 14 times [2021-10-21 20:14:30,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:30,341 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303569990] [2021-10-21 20:14:30,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:30,341 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:30,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:30,374 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:14:30,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:30,404 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:30,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:30,404 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 15 times [2021-10-21 20:14:30,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:30,405 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055561123] [2021-10-21 20:14:30,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:30,405 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:30,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:30,416 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:14:30,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:30,419 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:30,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:30,419 INFO L82 PathProgramCache]: Analyzing trace with hash -693064896, now seen corresponding path program 15 times [2021-10-21 20:14:30,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:30,419 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170332203] [2021-10-21 20:14:30,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:30,420 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:30,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:30,546 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 12 proven. 38 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-10-21 20:14:30,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:14:30,546 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170332203] [2021-10-21 20:14:30,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170332203] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:14:30,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [737915541] [2021-10-21 20:14:30,547 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 20:14:30,547 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:14:30,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:30,548 INFO L229 MonitoredProcess]: Starting monitored process 266 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:14:30,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (266)] Waiting until timeout for monitored process [2021-10-21 20:14:31,929 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-10-21 20:14:31,930 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:14:31,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-21 20:14:31,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:32,259 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 16 proven. 32 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-10-21 20:14:32,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [737915541] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:14:32,259 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:14:32,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 23 [2021-10-21 20:14:32,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676223130] [2021-10-21 20:14:32,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:14:32,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-21 20:14:32,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2021-10-21 20:14:32,321 INFO L87 Difference]: Start difference. First operand 81 states and 95 transitions. cyclomatic complexity: 20 Second operand has 23 states, 23 states have (on average 2.8260869565217392) internal successors, (65), 23 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:32,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:14:32,589 INFO L93 Difference]: Finished difference Result 103 states and 119 transitions. [2021-10-21 20:14:32,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-21 20:14:32,589 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 103 states and 119 transitions. [2021-10-21 20:14:32,590 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:14:32,590 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 103 states to 90 states and 102 transitions. [2021-10-21 20:14:32,590 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2021-10-21 20:14:32,591 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 60 [2021-10-21 20:14:32,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 90 states and 102 transitions. [2021-10-21 20:14:32,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:14:32,591 INFO L681 BuchiCegarLoop]: Abstraction has 90 states and 102 transitions. [2021-10-21 20:14:32,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states and 102 transitions. [2021-10-21 20:14:32,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 85. [2021-10-21 20:14:32,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 85 states have (on average 1.1411764705882352) internal successors, (97), 84 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:32,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 97 transitions. [2021-10-21 20:14:32,593 INFO L704 BuchiCegarLoop]: Abstraction has 85 states and 97 transitions. [2021-10-21 20:14:32,593 INFO L587 BuchiCegarLoop]: Abstraction has 85 states and 97 transitions. [2021-10-21 20:14:32,594 INFO L425 BuchiCegarLoop]: ======== Iteration 29============ [2021-10-21 20:14:32,594 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 85 states and 97 transitions. [2021-10-21 20:14:32,594 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:14:32,594 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:14:32,594 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:14:32,595 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:14:32,595 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:14:32,595 INFO L791 eck$LassoCheckResult]: Stem: 11567#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(11); 11568#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 11579#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 11581#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 11588#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 11620#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 11619#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 11618#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 11617#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 11616#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 11615#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 11614#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 11613#L35-3 assume !(main_~i~0 < 5); 11573#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 11574#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 11582#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 11585#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 11563#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 11564#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 11612#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 11610#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 11607#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 11604#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 11601#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 11598#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 11595#L39-3 assume !(main_~i~0 < 5); 11589#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 11583#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 11584#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 11580#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 11569#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 11570#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 11609#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 11606#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 11603#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 11600#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 11597#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 11594#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 11571#L44-4 main_~nc_B~0 := 0; 11572#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 11586#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 11587#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 11611#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 11608#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 11605#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 11602#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 11599#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 11596#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 11593#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 11565#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 11566#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 11631#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 11628#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 11625#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 11626#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 11638#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 11575#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 11576#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 11627#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 11623#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 11622#L57-2 [2021-10-21 20:14:32,596 INFO L793 eck$LassoCheckResult]: Loop: 11622#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 11621#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 11622#L57-2 [2021-10-21 20:14:32,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:32,596 INFO L82 PathProgramCache]: Analyzing trace with hash -1440943267, now seen corresponding path program 16 times [2021-10-21 20:14:32,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:32,596 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961017353] [2021-10-21 20:14:32,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:32,597 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:32,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:32,633 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:14:32,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:32,711 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:32,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:32,712 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 16 times [2021-10-21 20:14:32,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:32,712 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540549710] [2021-10-21 20:14:32,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:32,712 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:32,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:32,725 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:14:32,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:32,727 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:32,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:32,728 INFO L82 PathProgramCache]: Analyzing trace with hash -1767007680, now seen corresponding path program 17 times [2021-10-21 20:14:32,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:32,728 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118791485] [2021-10-21 20:14:32,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:32,728 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:32,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:32,919 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 8 proven. 42 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-10-21 20:14:32,919 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:14:32,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118791485] [2021-10-21 20:14:32,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118791485] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:14:32,920 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1831864760] [2021-10-21 20:14:32,920 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-21 20:14:32,920 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:14:32,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:32,933 INFO L229 MonitoredProcess]: Starting monitored process 267 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:14:33,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (267)] Waiting until timeout for monitored process [2021-10-21 20:14:34,640 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-10-21 20:14:34,640 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:14:34,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-21 20:14:34,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:35,054 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 10 proven. 40 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-10-21 20:14:35,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1831864760] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:14:35,054 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:14:35,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 26 [2021-10-21 20:14:35,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096717060] [2021-10-21 20:14:35,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:14:35,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-21 20:14:35,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=538, Unknown=0, NotChecked=0, Total=650 [2021-10-21 20:14:35,161 INFO L87 Difference]: Start difference. First operand 85 states and 97 transitions. cyclomatic complexity: 17 Second operand has 26 states, 26 states have (on average 2.923076923076923) internal successors, (76), 26 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) [2021-10-21 20:14:35,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:14:35,518 INFO L93 Difference]: Finished difference Result 95 states and 106 transitions. [2021-10-21 20:14:35,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-21 20:14:35,518 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 95 states and 106 transitions. [2021-10-21 20:14:35,519 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:14:35,520 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 95 states to 81 states and 91 transitions. [2021-10-21 20:14:35,520 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2021-10-21 20:14:35,520 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 56 [2021-10-21 20:14:35,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 81 states and 91 transitions. [2021-10-21 20:14:35,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:14:35,521 INFO L681 BuchiCegarLoop]: Abstraction has 81 states and 91 transitions. [2021-10-21 20:14:35,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states and 91 transitions. [2021-10-21 20:14:35,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 80. [2021-10-21 20:14:35,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 80 states have (on average 1.125) internal successors, (90), 79 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) [2021-10-21 20:14:35,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 90 transitions. [2021-10-21 20:14:35,523 INFO L704 BuchiCegarLoop]: Abstraction has 80 states and 90 transitions. [2021-10-21 20:14:35,523 INFO L587 BuchiCegarLoop]: Abstraction has 80 states and 90 transitions. [2021-10-21 20:14:35,523 INFO L425 BuchiCegarLoop]: ======== Iteration 30============ [2021-10-21 20:14:35,523 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states and 90 transitions. [2021-10-21 20:14:35,524 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:14:35,524 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:14:35,524 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:14:35,525 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:14:35,525 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:14:35,525 INFO L791 eck$LassoCheckResult]: Stem: 11981#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(11); 11982#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 11993#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 11995#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 12002#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 12034#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 12033#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 12032#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 12031#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 12030#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 12029#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 12028#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 12027#L35-3 assume !(main_~i~0 < 5); 11987#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 11988#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 11996#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 11999#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 11979#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 11980#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 12026#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 12024#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 12021#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 12018#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 12015#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 12012#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 12009#L39-3 assume !(main_~i~0 < 5); 12003#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 11997#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 11998#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 11994#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 11983#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 11984#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 12023#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 12020#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 12017#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 12014#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 12011#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 12008#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 11985#L44-4 main_~nc_B~0 := 0; 11986#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 12000#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 12001#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 12025#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 12022#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 12019#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 12016#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 12013#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 12010#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 12007#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 11977#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 11978#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 11990#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 12046#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 12045#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 12044#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 12043#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 12042#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 12041#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 12039#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 12037#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 12036#L57-2 [2021-10-21 20:14:35,525 INFO L793 eck$LassoCheckResult]: Loop: 12036#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 12035#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 12036#L57-2 [2021-10-21 20:14:35,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:35,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1079016667, now seen corresponding path program 18 times [2021-10-21 20:14:35,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:35,526 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854285520] [2021-10-21 20:14:35,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:35,526 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:35,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:35,601 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:14:35,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:35,680 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:35,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:35,697 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 17 times [2021-10-21 20:14:35,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:35,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252327921] [2021-10-21 20:14:35,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:35,698 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:35,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:35,720 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:14:35,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:35,723 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:35,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:35,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1847901246, now seen corresponding path program 19 times [2021-10-21 20:14:35,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:35,724 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447739652] [2021-10-21 20:14:35,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:35,724 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:35,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:35,843 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:14:35,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:35,880 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:46,223 WARN L207 SmtUtils]: Spent 10.25 s on a formula simplification. DAG size of input: 486 DAG size of output: 348 [2021-10-21 20:14:48,583 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:14:48,584 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:14:48,584 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:14:48,584 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:14:48,584 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:14:48,584 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:48,584 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:14:48,584 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:14:48,584 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-2.i_Iteration30_Lasso [2021-10-21 20:14:48,584 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:14:48,584 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:14:48,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:48,591 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:48,593 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:48,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:48,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:48,597 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:48,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:48,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:48,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:48,603 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:48,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:48,606 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:51,490 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:51,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:51,494 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:51,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:51,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:51,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:51,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:51,501 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:51,726 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-10-21 20:14:54,874 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:14:54,874 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:14:54,875 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:54,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:54,888 INFO L229 MonitoredProcess]: Starting monitored process 268 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:54,901 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:54,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (268)] Waiting until timeout for monitored process [2021-10-21 20:14:54,910 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:54,910 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:14:54,910 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:54,910 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:54,910 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:54,910 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:14:54,910 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:14:54,932 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:54,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (268)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:54,964 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:54,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:54,965 INFO L229 MonitoredProcess]: Starting monitored process 269 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:54,967 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:54,975 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:54,976 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:14:54,976 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:54,976 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:54,976 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:54,976 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:14:54,976 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:14:54,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (269)] Waiting until timeout for monitored process [2021-10-21 20:14:54,987 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:55,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (269)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:55,014 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:55,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:55,015 INFO L229 MonitoredProcess]: Starting monitored process 270 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:55,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (270)] Waiting until timeout for monitored process [2021-10-21 20:14:55,016 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:55,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:55,022 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:14:55,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:55,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:55,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:55,023 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:14:55,023 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:14:55,024 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:55,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (270)] Ended with exit code 0 [2021-10-21 20:14:55,042 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:55,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:55,043 INFO L229 MonitoredProcess]: Starting monitored process 271 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:55,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (271)] Waiting until timeout for monitored process [2021-10-21 20:14:55,044 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:55,051 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:55,051 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:55,051 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:55,051 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:55,052 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:55,052 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:55,054 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:55,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (271)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:55,074 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:55,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:55,075 INFO L229 MonitoredProcess]: Starting monitored process 272 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:55,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (272)] Waiting until timeout for monitored process [2021-10-21 20:14:55,076 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:55,083 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:55,083 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:14:55,083 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:55,083 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:55,084 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:55,084 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:14:55,084 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:14:55,085 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:55,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (272)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:55,106 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:55,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:55,107 INFO L229 MonitoredProcess]: Starting monitored process 273 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:55,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (273)] Waiting until timeout for monitored process [2021-10-21 20:14:55,109 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:55,116 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:55,116 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:14:55,116 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:55,116 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:55,116 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:55,116 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:14:55,116 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:14:55,117 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:55,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (273)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:55,136 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:55,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:55,137 INFO L229 MonitoredProcess]: Starting monitored process 274 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:55,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (274)] Waiting until timeout for monitored process [2021-10-21 20:14:55,138 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:55,144 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:55,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:55,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:55,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:55,145 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:55,145 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:55,148 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:55,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (274)] Ended with exit code 0 [2021-10-21 20:14:55,167 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:55,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:55,168 INFO L229 MonitoredProcess]: Starting monitored process 275 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:55,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (275)] Waiting until timeout for monitored process [2021-10-21 20:14:55,172 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:55,178 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:55,179 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:14:55,179 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:55,179 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:55,179 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:55,179 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:14:55,179 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:14:55,180 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:55,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (275)] Ended with exit code 0 [2021-10-21 20:14:55,199 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:55,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:55,200 INFO L229 MonitoredProcess]: Starting monitored process 276 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:55,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (276)] Waiting until timeout for monitored process [2021-10-21 20:14:55,201 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:55,207 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:55,208 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:14:55,208 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:55,208 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:55,208 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:55,208 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:14:55,208 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:14:55,209 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:55,227 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (276)] Ended with exit code 0 [2021-10-21 20:14:55,228 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:55,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:55,228 INFO L229 MonitoredProcess]: Starting monitored process 277 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:55,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (277)] Waiting until timeout for monitored process [2021-10-21 20:14:55,229 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 [2021-10-21 20:14:55,236 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:55,236 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:14:55,236 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:55,236 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:55,236 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:55,236 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:14:55,236 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:14:55,237 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:55,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (277)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:55,256 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:55,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:55,257 INFO L229 MonitoredProcess]: Starting monitored process 278 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:55,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (278)] Waiting until timeout for monitored process [2021-10-21 20:14:55,258 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 [2021-10-21 20:14:55,264 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:55,264 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:14:55,264 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:55,264 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:55,265 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:55,265 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:14:55,265 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:14:55,266 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:55,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (278)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:55,284 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:55,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:55,285 INFO L229 MonitoredProcess]: Starting monitored process 279 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:55,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (279)] Waiting until timeout for monitored process [2021-10-21 20:14:55,286 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 [2021-10-21 20:14:55,293 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:55,293 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:55,293 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:55,293 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:55,294 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:55,294 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:55,297 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:55,315 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (279)] Ended with exit code 0 [2021-10-21 20:14:55,316 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:55,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:55,316 INFO L229 MonitoredProcess]: Starting monitored process 280 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:55,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (280)] Waiting until timeout for monitored process [2021-10-21 20:14:55,317 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:55,324 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:55,324 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:55,324 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:55,324 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:55,325 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:55,325 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:55,327 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:55,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (280)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:55,347 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:55,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:55,347 INFO L229 MonitoredProcess]: Starting monitored process 281 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:55,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (281)] Waiting until timeout for monitored process [2021-10-21 20:14:55,348 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 [2021-10-21 20:14:55,355 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:55,355 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:14:55,355 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:55,355 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:55,355 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:55,356 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:14:55,356 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:14:55,357 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:55,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (281)] Ended with exit code 0 [2021-10-21 20:14:55,375 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:55,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:55,376 INFO L229 MonitoredProcess]: Starting monitored process 282 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:55,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (282)] Waiting until timeout for monitored process [2021-10-21 20:14:55,377 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:55,384 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:55,384 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:14:55,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:55,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:55,384 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:55,384 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:14:55,385 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:14:55,385 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:55,404 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (282)] Ended with exit code 0 [2021-10-21 20:14:55,404 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:55,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:55,405 INFO L229 MonitoredProcess]: Starting monitored process 283 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:55,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (283)] Waiting until timeout for monitored process [2021-10-21 20:14:55,406 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:55,412 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:55,413 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:14:55,413 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:55,413 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:55,413 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:55,413 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:14:55,413 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:14:55,414 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:55,433 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (283)] Ended with exit code 0 [2021-10-21 20:14:55,433 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:55,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:55,436 INFO L229 MonitoredProcess]: Starting monitored process 284 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:55,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (284)] Waiting until timeout for monitored process [2021-10-21 20:14:55,437 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:55,444 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:55,444 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:14:55,444 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:55,444 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:55,444 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:55,446 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:14:55,446 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:14:55,447 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:55,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (284)] Ended with exit code 0 [2021-10-21 20:14:55,466 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:55,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:55,467 INFO L229 MonitoredProcess]: Starting monitored process 285 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:55,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (285)] Waiting until timeout for monitored process [2021-10-21 20:14:55,468 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 [2021-10-21 20:14:55,474 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:55,474 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:55,474 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:55,475 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:55,475 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:55,476 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:55,478 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:55,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (285)] Ended with exit code 0 [2021-10-21 20:14:55,497 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:55,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:55,498 INFO L229 MonitoredProcess]: Starting monitored process 286 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:55,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (286)] Waiting until timeout for monitored process [2021-10-21 20:14:55,499 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:55,506 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:55,506 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:55,506 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:55,506 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:55,521 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:55,521 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:55,531 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:55,563 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (286)] Ended with exit code 0 [2021-10-21 20:14:55,563 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:55,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:55,564 INFO L229 MonitoredProcess]: Starting monitored process 287 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:55,578 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:55,587 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:55,587 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:55,587 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:55,587 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:55,589 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:55,589 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:55,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (287)] Waiting until timeout for monitored process [2021-10-21 20:14:55,616 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:55,640 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (287)] Ended with exit code 0 [2021-10-21 20:14:55,640 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:55,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:55,641 INFO L229 MonitoredProcess]: Starting monitored process 288 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:55,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (288)] Waiting until timeout for monitored process [2021-10-21 20:14:55,645 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 [2021-10-21 20:14:55,651 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:55,651 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:55,652 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:55,652 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:55,652 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:55,652 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:55,655 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:55,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (288)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:55,674 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:55,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:55,675 INFO L229 MonitoredProcess]: Starting monitored process 289 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:55,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (289)] Waiting until timeout for monitored process [2021-10-21 20:14:55,676 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:55,682 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:55,682 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:14:55,682 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:55,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:55,683 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:55,683 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:14:55,683 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:14:55,684 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:55,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (289)] Ended with exit code 0 [2021-10-21 20:14:55,703 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:55,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:55,704 INFO L229 MonitoredProcess]: Starting monitored process 290 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:55,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (290)] Waiting until timeout for monitored process [2021-10-21 20:14:55,705 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:55,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:55,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:55,712 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:55,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:55,712 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:55,712 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:55,715 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:55,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (290)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:55,734 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:55,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:55,735 INFO L229 MonitoredProcess]: Starting monitored process 291 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:55,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (291)] Waiting until timeout for monitored process [2021-10-21 20:14:55,736 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:55,742 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:55,743 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:55,743 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:55,743 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:55,743 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:55,744 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:55,746 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:55,765 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (291)] Ended with exit code 0 [2021-10-21 20:14:55,765 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:55,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:55,766 INFO L229 MonitoredProcess]: Starting monitored process 292 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:55,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (292)] Waiting until timeout for monitored process [2021-10-21 20:14:55,767 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:55,774 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:55,774 INFO L203 nArgumentSynthesizer]: 36 stem disjuncts [2021-10-21 20:14:55,774 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:55,774 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:55,850 INFO L401 nArgumentSynthesizer]: We have 76 Motzkin's Theorem applications. [2021-10-21 20:14:55,850 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:55,945 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:55,965 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (292)] Ended with exit code 0 [2021-10-21 20:14:55,965 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:55,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:55,966 INFO L229 MonitoredProcess]: Starting monitored process 293 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:55,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (293)] Waiting until timeout for monitored process [2021-10-21 20:14:55,975 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:55,982 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:55,982 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:55,982 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:55,982 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:55,988 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:55,988 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:56,003 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:14:56,047 INFO L443 ModelExtractionUtils]: Simplification made 30 calls to the SMT solver. [2021-10-21 20:14:56,047 INFO L444 ModelExtractionUtils]: 5 out of 31 variables were initially zero. Simplification set additionally 23 variables to zero. [2021-10-21 20:14:56,047 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:56,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:56,048 INFO L229 MonitoredProcess]: Starting monitored process 294 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:56,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (294)] Waiting until timeout for monitored process [2021-10-21 20:14:56,049 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:14:56,056 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 20:14:56,056 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:14:56,056 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_13, ULTIMATE.start_main_~j~0) = 3*v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_13 - 2*ULTIMATE.start_main_~j~0 Supporting invariants [] [2021-10-21 20:14:56,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (293)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:56,462 INFO L297 tatePredicateManager]: 70 out of 73 supporting invariants were superfluous and have been removed [2021-10-21 20:14:56,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:56,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:56,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 40 conjunts are in the unsatisfiable core [2021-10-21 20:14:56,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:57,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (294)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:57,552 WARN L261 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-21 20:14:57,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:57,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:14:57,602 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.13 stem predicates 2 loop predicates [2021-10-21 20:14:57,602 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 80 states and 90 transitions. cyclomatic complexity: 15 Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:57,756 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 80 states and 90 transitions. cyclomatic complexity: 15. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 82 states and 93 transitions. Complement of second has 12 states. [2021-10-21 20:14:57,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 10 stem states 0 non-accepting loop states 1 accepting loop states [2021-10-21 20:14:57,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:57,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 32 transitions. [2021-10-21 20:14:57,757 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 32 transitions. Stem has 60 letters. Loop has 2 letters. [2021-10-21 20:14:57,757 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:57,757 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:14:57,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:57,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:57,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 40 conjunts are in the unsatisfiable core [2021-10-21 20:14:57,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:58,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:58,808 WARN L261 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-21 20:14:58,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:58,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:14:58,860 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.13 stem predicates 2 loop predicates [2021-10-21 20:14:58,860 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 80 states and 90 transitions. cyclomatic complexity: 15 Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:58,963 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 80 states and 90 transitions. cyclomatic complexity: 15. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 82 states and 93 transitions. Complement of second has 12 states. [2021-10-21 20:14:58,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 10 stem states 0 non-accepting loop states 1 accepting loop states [2021-10-21 20:14:58,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:58,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 32 transitions. [2021-10-21 20:14:58,964 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 32 transitions. Stem has 60 letters. Loop has 2 letters. [2021-10-21 20:14:58,964 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:58,964 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:14:58,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:59,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:59,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 40 conjunts are in the unsatisfiable core [2021-10-21 20:14:59,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:15:00,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:15:00,011 WARN L261 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-21 20:15:00,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:15:00,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:15:00,063 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.13 stem predicates 2 loop predicates [2021-10-21 20:15:00,063 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 80 states and 90 transitions. cyclomatic complexity: 15 Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:15:00,331 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 80 states and 90 transitions. cyclomatic complexity: 15. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 104 states and 125 transitions. Complement of second has 21 states. [2021-10-21 20:15:00,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 16 states 13 stem states 1 non-accepting loop states 2 accepting loop states [2021-10-21 20:15:00,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:15:00,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 52 transitions. [2021-10-21 20:15:00,333 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 52 transitions. Stem has 60 letters. Loop has 2 letters. [2021-10-21 20:15:00,333 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:15:00,333 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 52 transitions. Stem has 62 letters. Loop has 2 letters. [2021-10-21 20:15:00,333 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:15:00,333 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 52 transitions. Stem has 60 letters. Loop has 4 letters. [2021-10-21 20:15:00,334 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:15:00,334 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 104 states and 125 transitions. [2021-10-21 20:15:00,335 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:15:00,336 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 104 states to 98 states and 115 transitions. [2021-10-21 20:15:00,336 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2021-10-21 20:15:00,336 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2021-10-21 20:15:00,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 98 states and 115 transitions. [2021-10-21 20:15:00,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:15:00,336 INFO L681 BuchiCegarLoop]: Abstraction has 98 states and 115 transitions. [2021-10-21 20:15:00,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states and 115 transitions. [2021-10-21 20:15:00,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 84. [2021-10-21 20:15:00,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 84 states have (on average 1.1428571428571428) internal successors, (96), 83 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) [2021-10-21 20:15:00,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 96 transitions. [2021-10-21 20:15:00,339 INFO L704 BuchiCegarLoop]: Abstraction has 84 states and 96 transitions. [2021-10-21 20:15:00,339 INFO L587 BuchiCegarLoop]: Abstraction has 84 states and 96 transitions. [2021-10-21 20:15:00,339 INFO L425 BuchiCegarLoop]: ======== Iteration 31============ [2021-10-21 20:15:00,339 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 84 states and 96 transitions. [2021-10-21 20:15:00,340 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:15:00,340 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:15:00,340 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:15:00,341 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:15:00,341 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:15:00,341 INFO L791 eck$LassoCheckResult]: Stem: 13319#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(11); 13320#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 13331#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 13333#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 13340#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 13372#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 13371#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 13370#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 13369#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 13368#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 13367#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 13366#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 13365#L35-3 assume !(main_~i~0 < 5); 13325#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 13326#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 13334#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 13337#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 13315#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 13316#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 13364#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 13362#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 13359#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 13356#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 13353#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 13350#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 13347#L39-3 assume !(main_~i~0 < 5); 13341#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 13335#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 13336#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 13332#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 13321#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 13322#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 13361#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 13358#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 13355#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 13352#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 13349#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 13346#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 13323#L44-4 main_~nc_B~0 := 0; 13324#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 13338#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 13339#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 13363#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 13360#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 13357#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 13354#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 13351#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 13348#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 13345#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 13317#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 13318#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 13328#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 13386#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 13385#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 13384#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 13383#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 13382#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 13381#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 13380#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 13379#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 13377#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 13375#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 13374#L57-2 [2021-10-21 20:15:00,342 INFO L793 eck$LassoCheckResult]: Loop: 13374#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 13373#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 13374#L57-2 [2021-10-21 20:15:00,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:15:00,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1846056126, now seen corresponding path program 20 times [2021-10-21 20:15:00,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:15:00,342 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258560324] [2021-10-21 20:15:00,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:15:00,343 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:15:00,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:15:00,480 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 22 proven. 27 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2021-10-21 20:15:00,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:15:00,481 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258560324] [2021-10-21 20:15:00,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258560324] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:15:00,481 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816550092] [2021-10-21 20:15:00,481 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 20:15:00,482 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:15:00,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:15:00,493 INFO L229 MonitoredProcess]: Starting monitored process 295 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:15:00,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (295)] Waiting until timeout for monitored process [2021-10-21 20:15:02,031 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 20:15:02,031 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:15:02,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-21 20:15:02,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:15:02,280 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 22 proven. 27 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2021-10-21 20:15:02,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1816550092] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:15:02,281 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:15:02,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 18 [2021-10-21 20:15:02,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822593699] [2021-10-21 20:15:02,281 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:15:02,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:15:02,282 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 18 times [2021-10-21 20:15:02,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:15:02,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394091039] [2021-10-21 20:15:02,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:15:02,282 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:15:02,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:15:02,294 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:15:02,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:15:02,296 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:15:02,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:15:02,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-21 20:15:02,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2021-10-21 20:15:02,368 INFO L87 Difference]: Start difference. First operand 84 states and 96 transitions. cyclomatic complexity: 17 Second operand has 18 states, 18 states have (on average 2.888888888888889) internal successors, (52), 18 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:15:02,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:15:02,481 INFO L93 Difference]: Finished difference Result 95 states and 104 transitions. [2021-10-21 20:15:02,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-21 20:15:02,481 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 95 states and 104 transitions. [2021-10-21 20:15:02,482 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 20:15:02,482 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 95 states to 0 states and 0 transitions. [2021-10-21 20:15:02,482 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 20:15:02,482 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 20:15:02,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 20:15:02,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:15:02,482 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:15:02,482 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:15:02,482 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:15:02,482 INFO L425 BuchiCegarLoop]: ======== Iteration 32============ [2021-10-21 20:15:02,482 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-21 20:15:02,482 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 20:15:02,482 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-21 20:15:02,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 08:15:02 BoogieIcfgContainer [2021-10-21 20:15:02,487 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 20:15:02,488 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:15:02,488 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:15:02,488 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:15:02,488 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:11:42" (3/4) ... [2021-10-21 20:15:02,492 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 20:15:02,492 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:15:02,493 INFO L168 Benchmark]: Toolchain (without parser) took 201104.29 ms. Allocated memory was 104.9 MB in the beginning and 801.1 MB in the end (delta: 696.3 MB). Free memory was 63.2 MB in the beginning and 147.6 MB in the end (delta: -84.4 MB). Peak memory consumption was 612.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:15:02,493 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 104.9 MB. Free memory is still 79.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:15:02,493 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.07 ms. Allocated memory is still 104.9 MB. Free memory was 63.0 MB in the beginning and 79.3 MB in the end (delta: -16.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:15:02,494 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.68 ms. Allocated memory is still 104.9 MB. Free memory was 79.3 MB in the beginning and 77.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:15:02,494 INFO L168 Benchmark]: Boogie Preprocessor took 47.04 ms. Allocated memory is still 104.9 MB. Free memory was 77.3 MB in the beginning and 76.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:15:02,494 INFO L168 Benchmark]: RCFGBuilder took 398.89 ms. Allocated memory is still 104.9 MB. Free memory was 76.1 MB in the beginning and 64.0 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-21 20:15:02,495 INFO L168 Benchmark]: BuchiAutomizer took 200283.01 ms. Allocated memory was 104.9 MB in the beginning and 801.1 MB in the end (delta: 696.3 MB). Free memory was 64.0 MB in the beginning and 148.6 MB in the end (delta: -84.7 MB). Peak memory consumption was 612.0 MB. Max. memory is 16.1 GB. [2021-10-21 20:15:02,495 INFO L168 Benchmark]: Witness Printer took 4.26 ms. Allocated memory is still 801.1 MB. Free memory was 148.6 MB in the beginning and 147.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:15:02,497 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 104.9 MB. Free memory is still 79.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 308.07 ms. Allocated memory is still 104.9 MB. Free memory was 63.0 MB in the beginning and 79.3 MB in the end (delta: -16.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 55.68 ms. Allocated memory is still 104.9 MB. Free memory was 79.3 MB in the beginning and 77.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.04 ms. Allocated memory is still 104.9 MB. Free memory was 77.3 MB in the beginning and 76.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 398.89 ms. Allocated memory is still 104.9 MB. Free memory was 76.1 MB in the beginning and 64.0 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 200283.01 ms. Allocated memory was 104.9 MB in the beginning and 801.1 MB in the end (delta: 696.3 MB). Free memory was 64.0 MB in the beginning and 148.6 MB in the end (delta: -84.7 MB). Peak memory consumption was 612.0 MB. Max. memory is 16.1 GB. * Witness Printer took 4.26 ms. Allocated memory is still 801.1 MB. Free memory was 148.6 MB in the beginning and 147.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 31 terminating modules (18 trivial, 9 deterministic, 4 nondeterministic). One deterministic module has affine ranking function 9 * unknown-#length-unknown[string_A] + -2 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * nc_A + unknown-#length-unknown[string_A] + -1 * string_A and consists of 3 locations. One deterministic module has affine ranking function unknown-#length-unknown[string_B] + -1 * nc_B and consists of 4 locations. One deterministic module has affine ranking function unknown-#length-unknown[string_A] + -2 * j and consists of 8 locations. One deterministic module has affine ranking function nc_A + -1 * i and consists of 3 locations. One deterministic module has affine ranking function unknown-#length-unknown[string_B] + -1 * i and consists of 8 locations. One deterministic module has affine ranking function nc_A + -1 * i and consists of 4 locations. One deterministic module has affine ranking function j + nc_A + -1 * i and consists of 4 locations. One deterministic module has affine ranking function -5 * i + 4 * unknown-#length-unknown[string_A] and consists of 24 locations. One nondeterministic module has affine ranking function -2 * i + 5 * unknown-#length-unknown[string_A] and consists of 10 locations. One nondeterministic module has affine ranking function -6 * i + 7 * unknown-#length-unknown[string_A] and consists of 14 locations. One nondeterministic module has affine ranking function 3 * unknown-#length-unknown[string_B] + -2 * j and consists of 14 locations. One nondeterministic module has affine ranking function 3 * unknown-#length-unknown[string_B] + -2 * j and consists of 16 locations. 18 modules have a trivial ranking function, the largest among these consists of 26 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 200.2s and 32 iterations. TraceHistogramMax:6. Analysis of lassos took 178.3s. Construction of modules took 2.6s. Büchi inclusion checks took 18.7s. Highest rank in rank-based complementation 3. Minimization of det autom 8. Minimization of nondet autom 23. Automata minimization 119.5ms AutomataMinimizationTime, 30 MinimizatonAttempts, 224 StatesRemovedByMinimization, 25 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 96 states and ocurred in iteration 24. Nontrivial modules had stage [9, 0, 4, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 578 SDtfs, 1175 SDslu, 1618 SDs, 0 SdLazy, 4369 SolverSat, 592 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2638.1ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc6 concLT0 SILN0 SILU12 SILI0 SILT0 lasso13 LassoPreprocessingBenchmarks: Lassos: inital416 mio100 ax100 hnf99 lsp96 ukn45 mio100 lsp49 div100 bol100 ite100 ukn100 eq176 hnf92 smp96 dnf1104 smp77 tf100 neg95 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 342ms VariablesStem: 9 VariablesLoop: 3 DisjunctsStem: 72 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 148 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-21 20:15:02,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (295)] Ended with exit code 0 [2021-10-21 20:15:02,742 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (267)] Ended with exit code 0 [2021-10-21 20:15:02,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (266)] Ended with exit code 0 [2021-10-21 20:15:03,141 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (231)] Ended with exit code 0 [2021-10-21 20:15:03,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (230)] Ended with exit code 0 [2021-10-21 20:15:03,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (207)] Forceful destruction successful, exit code 0 [2021-10-21 20:15:03,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (118)] Ended with exit code 0 [2021-10-21 20:15:03,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Ended with exit code 0 [2021-10-21 20:15:04,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Forceful destruction successful, exit code 0 [2021-10-21 20:15:04,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Forceful destruction successful, exit code 0 [2021-10-21 20:15:04,539 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Ended with exit code 0 [2021-10-21 20:15:04,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2021-10-21 20:15:04,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2021-10-21 20:15:05,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2021-10-21 20:15:05,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2021-10-21 20:15:05,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2021-10-21 20:15:05,754 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7186feb0-98f3-49cf-9780-11945154b0ce/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...