./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cstrcat-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cstrcat-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa --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 8688e0efa9d37c2205606fbd307da42d83b0f0e2936dd15336b8b67e136d86b0 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 00:16:38,851 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 00:16:38,853 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 00:16:38,876 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 00:16:38,877 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 00:16:38,877 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 00:16:38,879 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 00:16:38,880 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 00:16:38,882 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 00:16:38,883 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 00:16:38,884 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 00:16:38,884 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 00:16:38,885 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 00:16:38,886 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 00:16:38,887 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 00:16:38,888 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 00:16:38,889 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 00:16:38,889 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 00:16:38,891 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 00:16:38,893 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 00:16:38,894 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 00:16:38,895 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 00:16:38,896 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 00:16:38,897 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 00:16:38,900 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 00:16:38,900 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 00:16:38,900 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 00:16:38,901 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 00:16:38,901 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 00:16:38,902 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 00:16:38,903 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 00:16:38,903 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 00:16:38,904 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 00:16:38,904 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 00:16:38,905 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 00:16:38,905 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 00:16:38,906 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 00:16:38,906 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 00:16:38,906 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 00:16:38,907 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 00:16:38,907 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 00:16:38,908 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-07 00:16:38,926 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 00:16:38,926 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 00:16:38,926 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 00:16:38,926 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 00:16:38,927 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 00:16:38,927 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 00:16:38,927 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 00:16:38,928 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-07 00:16:38,928 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-07 00:16:38,928 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-07 00:16:38,928 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-07 00:16:38,928 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-07 00:16:38,928 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-07 00:16:38,928 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 00:16:38,928 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 00:16:38,928 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-07 00:16:38,929 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 00:16:38,929 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 00:16:38,929 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 00:16:38,929 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-07 00:16:38,929 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-07 00:16:38,929 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-07 00:16:38,929 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 00:16:38,929 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 00:16:38,929 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-07 00:16:38,930 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 00:16:38,930 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-07 00:16:38,930 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 00:16:38,930 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 00:16:38,930 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 00:16:38,930 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 00:16:38,930 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 00:16:38,931 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-07 00:16:38,931 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_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8688e0efa9d37c2205606fbd307da42d83b0f0e2936dd15336b8b67e136d86b0 [2021-12-07 00:16:39,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 00:16:39,117 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 00:16:39,119 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 00:16:39,120 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 00:16:39,120 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 00:16:39,121 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/array-memsafety/openbsd_cstrcat-alloca-2.i [2021-12-07 00:16:39,174 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/data/68db73daf/bd40187ec1784e1d8a7bd9de269550f3/FLAG09422ae03 [2021-12-07 00:16:39,590 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 00:16:39,591 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/sv-benchmarks/c/array-memsafety/openbsd_cstrcat-alloca-2.i [2021-12-07 00:16:39,604 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/data/68db73daf/bd40187ec1784e1d8a7bd9de269550f3/FLAG09422ae03 [2021-12-07 00:16:39,615 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/data/68db73daf/bd40187ec1784e1d8a7bd9de269550f3 [2021-12-07 00:16:39,617 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 00:16:39,618 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 00:16:39,619 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 00:16:39,619 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 00:16:39,622 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 00:16:39,622 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:16:39" (1/1) ... [2021-12-07 00:16:39,623 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3854f1fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:39, skipping insertion in model container [2021-12-07 00:16:39,623 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:16:39" (1/1) ... [2021-12-07 00:16:39,628 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 00:16:39,651 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 00:16:39,845 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:16:39,851 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 00:16:39,879 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:16:39,897 INFO L208 MainTranslator]: Completed translation [2021-12-07 00:16:39,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:39 WrapperNode [2021-12-07 00:16:39,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 00:16:39,899 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 00:16:39,899 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 00:16:39,899 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 00:16:39,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:39" (1/1) ... [2021-12-07 00:16:39,913 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:39" (1/1) ... [2021-12-07 00:16:39,929 INFO L137 Inliner]: procedures = 117, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 89 [2021-12-07 00:16:39,930 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 00:16:39,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 00:16:39,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 00:16:39,930 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 00:16:39,936 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:39" (1/1) ... [2021-12-07 00:16:39,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:39" (1/1) ... [2021-12-07 00:16:39,939 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:39" (1/1) ... [2021-12-07 00:16:39,939 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:39" (1/1) ... [2021-12-07 00:16:39,943 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:39" (1/1) ... [2021-12-07 00:16:39,946 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:39" (1/1) ... [2021-12-07 00:16:39,948 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:39" (1/1) ... [2021-12-07 00:16:39,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 00:16:39,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 00:16:39,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 00:16:39,950 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 00:16:39,951 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:39" (1/1) ... [2021-12-07 00:16:39,957 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:39,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:39,977 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:39,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-07 00:16:40,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-07 00:16:40,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-07 00:16:40,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-07 00:16:40,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-07 00:16:40,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 00:16:40,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 00:16:40,082 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 00:16:40,083 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 00:16:40,187 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 00:16:40,192 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 00:16:40,192 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-07 00:16:40,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:16:40 BoogieIcfgContainer [2021-12-07 00:16:40,193 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 00:16:40,194 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-07 00:16:40,194 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-07 00:16:40,196 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-07 00:16:40,197 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-07 00:16:40,197 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 12:16:39" (1/3) ... [2021-12-07 00:16:40,198 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@60fec129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 12:16:40, skipping insertion in model container [2021-12-07 00:16:40,198 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-07 00:16:40,198 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:39" (2/3) ... [2021-12-07 00:16:40,198 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@60fec129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 12:16:40, skipping insertion in model container [2021-12-07 00:16:40,198 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-07 00:16:40,198 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:16:40" (3/3) ... [2021-12-07 00:16:40,199 INFO L388 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrcat-alloca-2.i [2021-12-07 00:16:40,231 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-07 00:16:40,231 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-07 00:16:40,231 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-07 00:16:40,231 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-07 00:16:40,231 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-07 00:16:40,231 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-07 00:16:40,232 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-07 00:16:40,232 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-07 00:16:40,244 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 21 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) [2021-12-07 00:16:40,259 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 9 [2021-12-07 00:16:40,259 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 00:16:40,259 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 00:16:40,263 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-12-07 00:16:40,264 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-07 00:16:40,264 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-07 00:16:40,264 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 21 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) [2021-12-07 00:16:40,266 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 9 [2021-12-07 00:16:40,266 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 00:16:40,266 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 00:16:40,266 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-12-07 00:16:40,266 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-07 00:16:40,271 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet13#1, main_#t~post12#1, main_~i~0#1, main_#t~nondet15#1, main_#t~post14#1, main_~i~1#1, main_#t~ret16#1.base, main_#t~ret16#1.offset, main_~length1~0#1, main_~length2~0#1, main_~length3~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;main_~length2~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;main_~length3~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 3#L525true assume !(main_~length1~0#1 < 1); 11#L525-2true assume !(main_~length2~0#1 < 2); 21#L528-1true assume !(main_~length3~0#1 < 1); 13#L531-1true assume !(main_~length2~0#1 - main_~length3~0#1 < main_~length1~0#1 || main_~length3~0#1 > main_~length2~0#1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~malloc11#1.base, main_#t~malloc11#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc11#1.base, main_#t~malloc11#1.offset;main_~i~0#1 := 0; 4#L538-3true [2021-12-07 00:16:40,272 INFO L793 eck$LassoCheckResult]: Loop: 4#L538-3true assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet13#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet13#1; 18#L538-2true main_#t~post12#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post12#1;havoc main_#t~post12#1; 4#L538-3true [2021-12-07 00:16:40,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:16:40,276 INFO L85 PathProgramCache]: Analyzing trace with hash 889572367, now seen corresponding path program 1 times [2021-12-07 00:16:40,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:16:40,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888228096] [2021-12-07 00:16:40,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:16:40,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:16:40,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:16:40,361 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:16:40,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:16:40,388 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:16:40,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:16:40,390 INFO L85 PathProgramCache]: Analyzing trace with hash 2019, now seen corresponding path program 1 times [2021-12-07 00:16:40,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:16:40,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009941356] [2021-12-07 00:16:40,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:16:40,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:16:40,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:16:40,400 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:16:40,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:16:40,407 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:16:40,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:16:40,408 INFO L85 PathProgramCache]: Analyzing trace with hash 180553841, now seen corresponding path program 1 times [2021-12-07 00:16:40,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:16:40,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829300845] [2021-12-07 00:16:40,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:16:40,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:16:40,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:16:40,431 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:16:40,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:16:40,449 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:16:40,703 INFO L210 LassoAnalysis]: Preferences: [2021-12-07 00:16:40,704 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-07 00:16:40,704 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-07 00:16:40,704 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-07 00:16:40,705 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-07 00:16:40,705 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:40,705 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-07 00:16:40,705 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-07 00:16:40,705 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrcat-alloca-2.i_Iteration1_Lasso [2021-12-07 00:16:40,705 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-07 00:16:40,705 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-07 00:16:40,727 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:40,732 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:40,733 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:40,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:40,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:40,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:40,741 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:40,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:40,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:40,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:40,836 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:40,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:40,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:40,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:40,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:40,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:40,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:40,993 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-07 00:16:40,996 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-07 00:16:40,997 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:40,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:40,998 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:40,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-07 00:16:41,000 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 00:16:41,007 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:16:41,007 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:16:41,008 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:16:41,008 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:16:41,008 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:16:41,010 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:16:41,010 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:16:41,011 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:16:41,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-07 00:16:41,031 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:41,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:41,032 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:41,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-07 00:16:41,041 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 00:16:41,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:16:41,048 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:16:41,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:16:41,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:16:41,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:16:41,049 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:16:41,049 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:16:41,050 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:16:41,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-07 00:16:41,069 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:41,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:41,070 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:41,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-07 00:16:41,072 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 [2021-12-07 00:16:41,079 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:16:41,079 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:16:41,079 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:16:41,079 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:16:41,079 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:16:41,080 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:16:41,080 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:16:41,081 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:16:41,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-12-07 00:16:41,100 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:41,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:41,101 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:41,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-07 00:16:41,102 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 00:16:41,109 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:16:41,109 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:16:41,110 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:16:41,110 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:16:41,112 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:16:41,112 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:16:41,115 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:16:41,138 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-12-07 00:16:41,139 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:41,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:41,139 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:41,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-07 00:16:41,140 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 00:16:41,147 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:16:41,147 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:16:41,148 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:16:41,148 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:16:41,149 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:16:41,150 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:16:41,152 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:16:41,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-12-07 00:16:41,171 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:41,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:41,172 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:41,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-07 00:16:41,173 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 00:16:41,182 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:16:41,182 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:16:41,182 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:16:41,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:16:41,182 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:16:41,183 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:16:41,183 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:16:41,184 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:16:41,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-12-07 00:16:41,203 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:41,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:41,204 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:41,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-07 00:16:41,206 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 [2021-12-07 00:16:41,214 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:16:41,214 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:16:41,214 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:16:41,214 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:16:41,214 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:16:41,215 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:16:41,215 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:16:41,216 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:16:41,234 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-12-07 00:16:41,234 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:41,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:41,235 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:41,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-07 00:16:41,236 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 00:16:41,244 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:16:41,244 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:16:41,244 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:16:41,244 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:16:41,247 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:16:41,247 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:16:41,250 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:16:41,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-07 00:16:41,272 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:41,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:41,273 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:41,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-07 00:16:41,274 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 00:16:41,281 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:16:41,281 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:16:41,281 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:16:41,281 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:16:41,281 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:16:41,282 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:16:41,282 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:16:41,283 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:16:41,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-12-07 00:16:41,303 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:41,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:41,304 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:41,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-07 00:16:41,305 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 00:16:41,312 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:16:41,313 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:16:41,313 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:16:41,313 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:16:41,315 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:16:41,316 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:16:41,330 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:16:41,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-12-07 00:16:41,348 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:41,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:41,349 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:41,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-07 00:16:41,351 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 [2021-12-07 00:16:41,358 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:16:41,358 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:16:41,358 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:16:41,358 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:16:41,358 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:16:41,359 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:16:41,359 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:16:41,360 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:16:41,378 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-12-07 00:16:41,379 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:41,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:41,379 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:41,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-07 00:16:41,381 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 00:16:41,388 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:16:41,388 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:16:41,388 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:16:41,388 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:16:41,388 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:16:41,389 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:16:41,389 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:16:41,390 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:16:41,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-12-07 00:16:41,408 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:41,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:41,409 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:41,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-07 00:16:41,410 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 00:16:41,417 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:16:41,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:16:41,417 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:16:41,417 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:16:41,418 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:16:41,419 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:16:41,421 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:16:41,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-12-07 00:16:41,440 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:41,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:41,441 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:41,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-07 00:16:41,442 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 00:16:41,449 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:16:41,449 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:16:41,450 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:16:41,450 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:16:41,451 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:16:41,451 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:16:41,453 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:16:41,472 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-12-07 00:16:41,472 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:41,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:41,473 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:41,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-07 00:16:41,474 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 [2021-12-07 00:16:41,481 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:16:41,482 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:16:41,482 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:16:41,482 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:16:41,487 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:16:41,487 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:16:41,496 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-07 00:16:41,516 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-12-07 00:16:41,516 INFO L444 ModelExtractionUtils]: 15 out of 31 variables were initially zero. Simplification set additionally 13 variables to zero. [2021-12-07 00:16:41,517 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:41,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:41,518 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:41,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-07 00:16:41,519 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-07 00:16:41,528 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-07 00:16:41,528 INFO L513 LassoAnalysis]: Proved termination. [2021-12-07 00:16:41,528 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length1~0#1, ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~length1~0#1 - 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2021-12-07 00:16:41,548 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-12-07 00:16:41,562 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2021-12-07 00:16:41,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:16:41,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:41,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 00:16:41,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:16:41,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:41,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-07 00:16:41,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:16:41,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:16:41,659 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 [2021-12-07 00:16:41,659 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 22 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 21 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) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:16:41,698 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 22 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 21 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). Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 55 states and 77 transitions. Complement of second has 7 states. [2021-12-07 00:16:41,700 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 [2021-12-07 00:16:41,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:16:41,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 54 transitions. [2021-12-07 00:16:41,707 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 54 transitions. Stem has 6 letters. Loop has 2 letters. [2021-12-07 00:16:41,707 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 00:16:41,707 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 54 transitions. Stem has 8 letters. Loop has 2 letters. [2021-12-07 00:16:41,708 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 00:16:41,708 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 54 transitions. Stem has 6 letters. Loop has 4 letters. [2021-12-07 00:16:41,708 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 00:16:41,709 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 77 transitions. [2021-12-07 00:16:41,713 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2021-12-07 00:16:41,716 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 18 states and 25 transitions. [2021-12-07 00:16:41,717 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-12-07 00:16:41,717 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-12-07 00:16:41,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 25 transitions. [2021-12-07 00:16:41,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 00:16:41,718 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2021-12-07 00:16:41,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 25 transitions. [2021-12-07 00:16:41,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-12-07 00:16:41,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 17 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) [2021-12-07 00:16:41,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2021-12-07 00:16:41,736 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2021-12-07 00:16:41,736 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2021-12-07 00:16:41,736 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-07 00:16:41,736 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 25 transitions. [2021-12-07 00:16:41,737 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2021-12-07 00:16:41,737 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 00:16:41,737 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 00:16:41,738 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:16:41,738 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-07 00:16:41,738 INFO L791 eck$LassoCheckResult]: Stem: 158#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 159#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet13#1, main_#t~post12#1, main_~i~0#1, main_#t~nondet15#1, main_#t~post14#1, main_~i~1#1, main_#t~ret16#1.base, main_#t~ret16#1.offset, main_~length1~0#1, main_~length2~0#1, main_~length3~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;main_~length2~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;main_~length3~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 156#L525 assume !(main_~length1~0#1 < 1); 157#L525-2 assume !(main_~length2~0#1 < 2); 165#L528-1 assume !(main_~length3~0#1 < 1); 167#L531-1 assume !(main_~length2~0#1 - main_~length3~0#1 < main_~length1~0#1 || main_~length3~0#1 > main_~length2~0#1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~malloc11#1.base, main_#t~malloc11#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc11#1.base, main_#t~malloc11#1.offset;main_~i~0#1 := 0; 152#L538-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 154#L538-4 main_~i~1#1 := 0; 160#L542-3 [2021-12-07 00:16:41,738 INFO L793 eck$LassoCheckResult]: Loop: 160#L542-3 assume !!(main_~i~1#1 < main_~length3~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet15#1; 166#L542-2 main_#t~post14#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 160#L542-3 [2021-12-07 00:16:41,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:16:41,739 INFO L85 PathProgramCache]: Analyzing trace with hash 180553783, now seen corresponding path program 1 times [2021-12-07 00:16:41,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:16:41,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435453357] [2021-12-07 00:16:41,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:16:41,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:16:41,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:16:41,756 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:16:41,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:16:41,767 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:16:41,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:16:41,767 INFO L85 PathProgramCache]: Analyzing trace with hash 2467, now seen corresponding path program 1 times [2021-12-07 00:16:41,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:16:41,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823948212] [2021-12-07 00:16:41,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:16:41,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:16:41,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:16:41,773 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:16:41,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:16:41,778 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:16:41,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:16:41,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1713495129, now seen corresponding path program 1 times [2021-12-07 00:16:41,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:16:41,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069804348] [2021-12-07 00:16:41,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:16:41,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:16:41,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:16:41,792 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:16:41,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:16:41,805 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:16:41,999 INFO L210 LassoAnalysis]: Preferences: [2021-12-07 00:16:41,999 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-07 00:16:41,999 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-07 00:16:41,999 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-07 00:16:41,999 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-07 00:16:41,999 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:42,000 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-07 00:16:42,000 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-07 00:16:42,000 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrcat-alloca-2.i_Iteration2_Lasso [2021-12-07 00:16:42,000 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-07 00:16:42,000 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-07 00:16:42,004 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:42,005 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:42,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:42,008 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:42,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:42,011 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:42,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:42,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:42,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:42,051 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-12-07 00:16:42,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:42,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:42,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:42,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:42,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:42,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:42,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:42,292 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-07 00:16:42,292 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-07 00:16:42,292 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:42,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:42,293 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:42,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-07 00:16:42,294 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 [2021-12-07 00:16:42,301 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:16:42,301 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:16:42,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:16:42,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:16:42,301 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:16:42,302 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:16:42,302 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:16:42,303 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:16:42,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-12-07 00:16:42,322 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:42,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:42,323 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:42,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-07 00:16:42,325 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 00:16:42,332 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:16:42,332 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:16:42,332 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:16:42,332 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:16:42,332 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:16:42,333 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:16:42,333 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:16:42,334 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:16:42,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-12-07 00:16:42,353 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:42,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:42,353 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:42,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-07 00:16:42,355 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 00:16:42,362 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:16:42,362 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:16:42,363 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:16:42,363 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:16:42,363 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:16:42,363 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:16:42,363 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:16:42,364 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:16:42,382 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-12-07 00:16:42,382 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:42,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:42,383 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:42,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-07 00:16:42,386 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 00:16:42,393 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:16:42,393 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:16:42,393 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:16:42,393 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:16:42,395 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:16:42,395 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:16:42,398 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:16:42,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2021-12-07 00:16:42,417 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:42,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:42,417 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:42,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-07 00:16:42,419 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 [2021-12-07 00:16:42,426 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:16:42,426 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:16:42,426 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:16:42,426 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:16:42,428 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:16:42,428 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:16:42,430 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:16:42,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-12-07 00:16:42,449 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:42,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:42,450 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:42,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-07 00:16:42,451 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 [2021-12-07 00:16:42,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:16:42,459 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:16:42,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:16:42,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:16:42,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:16:42,459 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:16:42,459 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:16:42,461 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:16:42,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-12-07 00:16:42,479 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:42,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:42,480 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:42,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-07 00:16:42,481 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 00:16:42,488 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:16:42,489 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:16:42,489 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:16:42,489 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:16:42,490 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:16:42,490 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:16:42,493 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:16:42,511 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-12-07 00:16:42,511 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:42,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:42,512 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:42,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-07 00:16:42,513 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 00:16:42,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:16:42,520 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:16:42,520 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:16:42,520 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:16:42,521 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:16:42,521 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:16:42,523 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:16:42,541 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-12-07 00:16:42,542 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:42,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:42,542 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:42,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-12-07 00:16:42,543 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 00:16:42,551 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:16:42,551 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:16:42,551 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:16:42,551 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:16:42,553 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:16:42,553 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:16:42,555 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:16:42,574 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-12-07 00:16:42,574 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:42,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:42,575 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:42,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-12-07 00:16:42,576 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 00:16:42,583 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:16:42,584 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:16:42,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:16:42,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:16:42,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:16:42,584 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:16:42,584 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:16:42,586 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:16:42,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-12-07 00:16:42,604 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:42,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:42,605 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:42,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-12-07 00:16:42,606 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 00:16:42,613 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:16:42,613 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:16:42,613 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:16:42,613 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:16:42,617 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:16:42,617 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:16:42,627 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-07 00:16:42,665 INFO L443 ModelExtractionUtils]: Simplification made 22 calls to the SMT solver. [2021-12-07 00:16:42,665 INFO L444 ModelExtractionUtils]: 9 out of 34 variables were initially zero. Simplification set additionally 20 variables to zero. [2021-12-07 00:16:42,666 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:42,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:42,666 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:42,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-12-07 00:16:42,668 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-07 00:16:42,676 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-12-07 00:16:42,676 INFO L513 LassoAnalysis]: Proved termination. [2021-12-07 00:16:42,676 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1#1, v_rep(select #length ULTIMATE.start_main_~nondetString2~0#1.base)_1) = -1*ULTIMATE.start_main_~i~1#1 + 1*v_rep(select #length ULTIMATE.start_main_~nondetString2~0#1.base)_1 Supporting invariants [1*v_rep(select #length ULTIMATE.start_main_~nondetString2~0#1.base)_1 - 1*ULTIMATE.start_main_~length3~0#1 >= 0] [2021-12-07 00:16:42,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-12-07 00:16:42,709 INFO L297 tatePredicateManager]: 6 out of 7 supporting invariants were superfluous and have been removed [2021-12-07 00:16:42,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:16:42,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:42,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-07 00:16:42,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:16:42,783 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-12-07 00:16:42,784 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 15 [2021-12-07 00:16:42,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:42,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-07 00:16:42,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:16:42,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:16:42,819 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 [2021-12-07 00:16:42,819 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 11 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:16:42,849 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 11. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 26 states and 38 transitions. Complement of second has 7 states. [2021-12-07 00:16:42,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-07 00:16:42,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:16:42,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 23 transitions. [2021-12-07 00:16:42,850 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 8 letters. Loop has 2 letters. [2021-12-07 00:16:42,850 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 00:16:42,850 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 10 letters. Loop has 2 letters. [2021-12-07 00:16:42,851 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 00:16:42,851 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 8 letters. Loop has 4 letters. [2021-12-07 00:16:42,851 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 00:16:42,851 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 38 transitions. [2021-12-07 00:16:42,852 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-12-07 00:16:42,852 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 19 states and 27 transitions. [2021-12-07 00:16:42,852 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-12-07 00:16:42,852 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2021-12-07 00:16:42,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 27 transitions. [2021-12-07 00:16:42,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 00:16:42,853 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 27 transitions. [2021-12-07 00:16:42,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 27 transitions. [2021-12-07 00:16:42,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-12-07 00:16:42,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 18 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:16:42,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 27 transitions. [2021-12-07 00:16:42,854 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 27 transitions. [2021-12-07 00:16:42,854 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 27 transitions. [2021-12-07 00:16:42,854 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-07 00:16:42,854 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 27 transitions. [2021-12-07 00:16:42,855 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-12-07 00:16:42,855 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 00:16:42,855 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 00:16:42,855 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:16:42,855 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-07 00:16:42,856 INFO L791 eck$LassoCheckResult]: Stem: 290#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 291#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet13#1, main_#t~post12#1, main_~i~0#1, main_#t~nondet15#1, main_#t~post14#1, main_~i~1#1, main_#t~ret16#1.base, main_#t~ret16#1.offset, main_~length1~0#1, main_~length2~0#1, main_~length3~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;main_~length2~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;main_~length3~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 288#L525 assume !(main_~length1~0#1 < 1); 289#L525-2 assume !(main_~length2~0#1 < 2); 299#L528-1 assume !(main_~length3~0#1 < 1); 300#L531-1 assume !(main_~length2~0#1 - main_~length3~0#1 < main_~length1~0#1 || main_~length3~0#1 > main_~length2~0#1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~malloc11#1.base, main_#t~malloc11#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc11#1.base, main_#t~malloc11#1.offset;main_~i~0#1 := 0; 284#L538-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 286#L538-4 main_~i~1#1 := 0; 292#L542-3 assume !(main_~i~1#1 < main_~length3~0#1 - 1); 301#L542-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length3~0#1 - 1), 1);assume { :begin_inline_cstrcat } true;cstrcat_#in~s#1.base, cstrcat_#in~s#1.offset, cstrcat_#in~append#1.base, cstrcat_#in~append#1.offset := main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;havoc cstrcat_#res#1.base, cstrcat_#res#1.offset;havoc cstrcat_#t~pre2#1.base, cstrcat_#t~pre2#1.offset, cstrcat_#t~mem3#1, cstrcat_#t~post4#1.base, cstrcat_#t~post4#1.offset, cstrcat_#t~post5#1.base, cstrcat_#t~post5#1.offset, cstrcat_#t~mem6#1, cstrcat_~s#1.base, cstrcat_~s#1.offset, cstrcat_~append#1.base, cstrcat_~append#1.offset, cstrcat_~save~0#1.base, cstrcat_~save~0#1.offset;cstrcat_~s#1.base, cstrcat_~s#1.offset := cstrcat_#in~s#1.base, cstrcat_#in~s#1.offset;cstrcat_~append#1.base, cstrcat_~append#1.offset := cstrcat_#in~append#1.base, cstrcat_#in~append#1.offset;cstrcat_~save~0#1.base, cstrcat_~save~0#1.offset := cstrcat_~s#1.base, cstrcat_~s#1.offset; 302#L517-4 [2021-12-07 00:16:42,856 INFO L793 eck$LassoCheckResult]: Loop: 302#L517-4 call cstrcat_#t~mem3#1 := read~int(cstrcat_~s#1.base, cstrcat_~s#1.offset, 1); 293#L517-1 assume !!(0 != cstrcat_#t~mem3#1);havoc cstrcat_#t~mem3#1; 295#L517-3 cstrcat_#t~pre2#1.base, cstrcat_#t~pre2#1.offset := cstrcat_~s#1.base, 1 + cstrcat_~s#1.offset;cstrcat_~s#1.base, cstrcat_~s#1.offset := cstrcat_~s#1.base, 1 + cstrcat_~s#1.offset;havoc cstrcat_#t~pre2#1.base, cstrcat_#t~pre2#1.offset; 302#L517-4 [2021-12-07 00:16:42,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:16:42,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1713495071, now seen corresponding path program 1 times [2021-12-07 00:16:42,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:16:42,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221989419] [2021-12-07 00:16:42,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:16:42,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:16:42,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:16:42,872 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:16:42,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:16:42,893 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:16:42,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:16:42,894 INFO L85 PathProgramCache]: Analyzing trace with hash 86554, now seen corresponding path program 1 times [2021-12-07 00:16:42,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:16:42,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263346698] [2021-12-07 00:16:42,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:16:42,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:16:42,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:16:42,898 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:16:42,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:16:42,902 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:16:42,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:16:42,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1045403964, now seen corresponding path program 1 times [2021-12-07 00:16:42,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:16:42,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585342138] [2021-12-07 00:16:42,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:16:42,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:16:42,910 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-12-07 00:16:42,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:43,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:16:43,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:16:43,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585342138] [2021-12-07 00:16:43,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585342138] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:16:43,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:16:43,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:16:43,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946973638] [2021-12-07 00:16:43,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:16:43,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:16:43,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 00:16:43,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:16:43,047 INFO L87 Difference]: Start difference. First operand 19 states and 27 transitions. cyclomatic complexity: 12 Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:16:43,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:16:43,109 INFO L93 Difference]: Finished difference Result 26 states and 34 transitions. [2021-12-07 00:16:43,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 00:16:43,110 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 34 transitions. [2021-12-07 00:16:43,111 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2021-12-07 00:16:43,111 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 26 states and 34 transitions. [2021-12-07 00:16:43,111 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2021-12-07 00:16:43,112 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2021-12-07 00:16:43,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 34 transitions. [2021-12-07 00:16:43,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 00:16:43,112 INFO L681 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2021-12-07 00:16:43,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 34 transitions. [2021-12-07 00:16:43,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 22. [2021-12-07 00:16:43,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 21 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) [2021-12-07 00:16:43,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions. [2021-12-07 00:16:43,115 INFO L704 BuchiCegarLoop]: Abstraction has 22 states and 30 transitions. [2021-12-07 00:16:43,115 INFO L587 BuchiCegarLoop]: Abstraction has 22 states and 30 transitions. [2021-12-07 00:16:43,115 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-07 00:16:43,115 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 30 transitions. [2021-12-07 00:16:43,116 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-12-07 00:16:43,116 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 00:16:43,116 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 00:16:43,116 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:16:43,116 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-07 00:16:43,117 INFO L791 eck$LassoCheckResult]: Stem: 354#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 355#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet13#1, main_#t~post12#1, main_~i~0#1, main_#t~nondet15#1, main_#t~post14#1, main_~i~1#1, main_#t~ret16#1.base, main_#t~ret16#1.offset, main_~length1~0#1, main_~length2~0#1, main_~length3~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;main_~length2~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;main_~length3~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 352#L525 assume !(main_~length1~0#1 < 1); 353#L525-2 assume !(main_~length2~0#1 < 2); 362#L528-1 assume !(main_~length3~0#1 < 1); 363#L531-1 assume !(main_~length2~0#1 - main_~length3~0#1 < main_~length1~0#1 || main_~length3~0#1 > main_~length2~0#1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~malloc11#1.base, main_#t~malloc11#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc11#1.base, main_#t~malloc11#1.offset;main_~i~0#1 := 0; 348#L538-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 350#L538-4 main_~i~1#1 := 0; 356#L542-3 assume !(main_~i~1#1 < main_~length3~0#1 - 1); 364#L542-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length3~0#1 - 1), 1);assume { :begin_inline_cstrcat } true;cstrcat_#in~s#1.base, cstrcat_#in~s#1.offset, cstrcat_#in~append#1.base, cstrcat_#in~append#1.offset := main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;havoc cstrcat_#res#1.base, cstrcat_#res#1.offset;havoc cstrcat_#t~pre2#1.base, cstrcat_#t~pre2#1.offset, cstrcat_#t~mem3#1, cstrcat_#t~post4#1.base, cstrcat_#t~post4#1.offset, cstrcat_#t~post5#1.base, cstrcat_#t~post5#1.offset, cstrcat_#t~mem6#1, cstrcat_~s#1.base, cstrcat_~s#1.offset, cstrcat_~append#1.base, cstrcat_~append#1.offset, cstrcat_~save~0#1.base, cstrcat_~save~0#1.offset;cstrcat_~s#1.base, cstrcat_~s#1.offset := cstrcat_#in~s#1.base, cstrcat_#in~s#1.offset;cstrcat_~append#1.base, cstrcat_~append#1.offset := cstrcat_#in~append#1.base, cstrcat_#in~append#1.offset;cstrcat_~save~0#1.base, cstrcat_~save~0#1.offset := cstrcat_~s#1.base, cstrcat_~s#1.offset; 366#L517-4 call cstrcat_#t~mem3#1 := read~int(cstrcat_~s#1.base, cstrcat_~s#1.offset, 1); 357#L517-1 assume !(0 != cstrcat_#t~mem3#1);havoc cstrcat_#t~mem3#1; 358#L518-2 [2021-12-07 00:16:43,117 INFO L793 eck$LassoCheckResult]: Loop: 358#L518-2 cstrcat_#t~post4#1.base, cstrcat_#t~post4#1.offset := cstrcat_~s#1.base, cstrcat_~s#1.offset;cstrcat_~s#1.base, cstrcat_~s#1.offset := cstrcat_#t~post4#1.base, 1 + cstrcat_#t~post4#1.offset;cstrcat_#t~post5#1.base, cstrcat_#t~post5#1.offset := cstrcat_~append#1.base, cstrcat_~append#1.offset;cstrcat_~append#1.base, cstrcat_~append#1.offset := cstrcat_#t~post5#1.base, 1 + cstrcat_#t~post5#1.offset;call cstrcat_#t~mem6#1 := read~int(cstrcat_#t~post5#1.base, cstrcat_#t~post5#1.offset, 1);call write~int(cstrcat_#t~mem6#1, cstrcat_#t~post4#1.base, cstrcat_#t~post4#1.offset, 1); 359#L518 assume !!(0 != cstrcat_#t~mem6#1);havoc cstrcat_#t~post4#1.base, cstrcat_#t~post4#1.offset;havoc cstrcat_#t~post5#1.base, cstrcat_#t~post5#1.offset;havoc cstrcat_#t~mem6#1; 358#L518-2 [2021-12-07 00:16:43,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:16:43,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1696290690, now seen corresponding path program 1 times [2021-12-07 00:16:43,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:16:43,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424160416] [2021-12-07 00:16:43,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:16:43,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:16:43,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:16:43,135 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:16:43,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:16:43,151 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:16:43,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:16:43,151 INFO L85 PathProgramCache]: Analyzing trace with hash 3238, now seen corresponding path program 1 times [2021-12-07 00:16:43,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:16:43,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201705348] [2021-12-07 00:16:43,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:16:43,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:16:43,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:16:43,156 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:16:43,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:16:43,160 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:16:43,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:16:43,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1952217113, now seen corresponding path program 1 times [2021-12-07 00:16:43,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:16:43,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699889187] [2021-12-07 00:16:43,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:16:43,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:16:43,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:43,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:16:43,256 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:16:43,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699889187] [2021-12-07 00:16:43,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699889187] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:16:43,256 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:16:43,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 00:16:43,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365478225] [2021-12-07 00:16:43,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:16:43,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:16:43,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:16:43,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:16:43,319 INFO L87 Difference]: Start difference. First operand 22 states and 30 transitions. cyclomatic complexity: 12 Second operand has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 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) [2021-12-07 00:16:43,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:16:43,397 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions. [2021-12-07 00:16:43,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-07 00:16:43,398 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 46 transitions. [2021-12-07 00:16:43,399 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-12-07 00:16:43,400 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 31 states and 40 transitions. [2021-12-07 00:16:43,400 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2021-12-07 00:16:43,400 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-12-07 00:16:43,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 40 transitions. [2021-12-07 00:16:43,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 00:16:43,400 INFO L681 BuchiCegarLoop]: Abstraction has 31 states and 40 transitions. [2021-12-07 00:16:43,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 40 transitions. [2021-12-07 00:16:43,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2021-12-07 00:16:43,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 30 states have (on average 1.3) internal successors, (39), 29 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) [2021-12-07 00:16:43,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2021-12-07 00:16:43,403 INFO L704 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2021-12-07 00:16:43,403 INFO L587 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2021-12-07 00:16:43,403 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-07 00:16:43,403 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 39 transitions. [2021-12-07 00:16:43,404 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-12-07 00:16:43,404 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 00:16:43,404 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 00:16:43,405 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:16:43,405 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-07 00:16:43,405 INFO L791 eck$LassoCheckResult]: Stem: 431#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 432#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet13#1, main_#t~post12#1, main_~i~0#1, main_#t~nondet15#1, main_#t~post14#1, main_~i~1#1, main_#t~ret16#1.base, main_#t~ret16#1.offset, main_~length1~0#1, main_~length2~0#1, main_~length3~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;main_~length2~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;main_~length3~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 424#L525 assume !(main_~length1~0#1 < 1); 425#L525-2 assume !(main_~length2~0#1 < 2); 438#L528-1 assume !(main_~length3~0#1 < 1); 441#L531-1 assume !(main_~length2~0#1 - main_~length3~0#1 < main_~length1~0#1 || main_~length3~0#1 > main_~length2~0#1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~malloc11#1.base, main_#t~malloc11#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc11#1.base, main_#t~malloc11#1.offset;main_~i~0#1 := 0; 426#L538-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 428#L538-4 main_~i~1#1 := 0; 453#L542-3 assume !!(main_~i~1#1 < main_~length3~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet15#1; 451#L542-2 main_#t~post14#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 450#L542-3 assume !(main_~i~1#1 < main_~length3~0#1 - 1); 449#L542-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length3~0#1 - 1), 1);assume { :begin_inline_cstrcat } true;cstrcat_#in~s#1.base, cstrcat_#in~s#1.offset, cstrcat_#in~append#1.base, cstrcat_#in~append#1.offset := main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;havoc cstrcat_#res#1.base, cstrcat_#res#1.offset;havoc cstrcat_#t~pre2#1.base, cstrcat_#t~pre2#1.offset, cstrcat_#t~mem3#1, cstrcat_#t~post4#1.base, cstrcat_#t~post4#1.offset, cstrcat_#t~post5#1.base, cstrcat_#t~post5#1.offset, cstrcat_#t~mem6#1, cstrcat_~s#1.base, cstrcat_~s#1.offset, cstrcat_~append#1.base, cstrcat_~append#1.offset, cstrcat_~save~0#1.base, cstrcat_~save~0#1.offset;cstrcat_~s#1.base, cstrcat_~s#1.offset := cstrcat_#in~s#1.base, cstrcat_#in~s#1.offset;cstrcat_~append#1.base, cstrcat_~append#1.offset := cstrcat_#in~append#1.base, cstrcat_#in~append#1.offset;cstrcat_~save~0#1.base, cstrcat_~save~0#1.offset := cstrcat_~s#1.base, cstrcat_~s#1.offset; 448#L517-4 [2021-12-07 00:16:43,405 INFO L793 eck$LassoCheckResult]: Loop: 448#L517-4 call cstrcat_#t~mem3#1 := read~int(cstrcat_~s#1.base, cstrcat_~s#1.offset, 1); 434#L517-1 assume !!(0 != cstrcat_#t~mem3#1);havoc cstrcat_#t~mem3#1; 435#L517-3 cstrcat_#t~pre2#1.base, cstrcat_#t~pre2#1.offset := cstrcat_~s#1.base, 1 + cstrcat_~s#1.offset;cstrcat_~s#1.base, cstrcat_~s#1.offset := cstrcat_~s#1.base, 1 + cstrcat_~s#1.offset;havoc cstrcat_#t~pre2#1.base, cstrcat_#t~pre2#1.offset; 448#L517-4 [2021-12-07 00:16:43,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:16:43,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1696346049, now seen corresponding path program 1 times [2021-12-07 00:16:43,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:16:43,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99270363] [2021-12-07 00:16:43,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:16:43,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:16:43,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:16:43,420 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:16:43,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:16:43,435 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:16:43,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:16:43,436 INFO L85 PathProgramCache]: Analyzing trace with hash 86554, now seen corresponding path program 2 times [2021-12-07 00:16:43,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:16:43,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026921068] [2021-12-07 00:16:43,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:16:43,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:16:43,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:16:43,440 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:16:43,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:16:43,444 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:16:43,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:16:43,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1259997786, now seen corresponding path program 1 times [2021-12-07 00:16:43,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:16:43,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699742733] [2021-12-07 00:16:43,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:16:43,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:16:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:16:43,461 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:16:43,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:16:43,476 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:16:43,956 INFO L210 LassoAnalysis]: Preferences: [2021-12-07 00:16:43,956 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-07 00:16:43,956 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-07 00:16:43,957 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-07 00:16:43,957 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-07 00:16:43,957 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:43,957 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-07 00:16:43,957 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-07 00:16:43,957 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrcat-alloca-2.i_Iteration5_Lasso [2021-12-07 00:16:43,957 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-07 00:16:43,957 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-07 00:16:43,959 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:43,961 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:43,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:43,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:43,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:43,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:44,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:44,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:44,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:44,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:44,172 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:44,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:44,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:44,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:44,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:44,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:44,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:44,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:44,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:44,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:44,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:44,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:44,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:44,184 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:44,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:44,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:16:44,449 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-07 00:16:44,449 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-07 00:16:44,449 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:44,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:44,450 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:44,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-12-07 00:16:44,451 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 [2021-12-07 00:16:44,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:16:44,458 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:16:44,458 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:16:44,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:16:44,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:16:44,459 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:16:44,459 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:16:44,460 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:16:44,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-12-07 00:16:44,478 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:44,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:44,479 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:44,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-12-07 00:16:44,480 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 [2021-12-07 00:16:44,486 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:16:44,487 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:16:44,487 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:16:44,487 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:16:44,488 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:16:44,488 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:16:44,490 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:16:44,508 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-12-07 00:16:44,508 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:44,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:44,509 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:44,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-12-07 00:16:44,510 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 00:16:44,519 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:16:44,519 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:16:44,519 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:16:44,519 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:16:44,519 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:16:44,520 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:16:44,520 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:16:44,521 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:16:44,546 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-12-07 00:16:44,546 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:44,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:44,547 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:44,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-12-07 00:16:44,548 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 00:16:44,555 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:16:44,555 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:16:44,555 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:16:44,555 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:16:44,555 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:16:44,556 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:16:44,556 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:16:44,557 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:16:44,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-12-07 00:16:44,575 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:44,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:44,576 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:44,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-12-07 00:16:44,577 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 [2021-12-07 00:16:44,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:16:44,584 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:16:44,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:16:44,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:16:44,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:16:44,584 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:16:44,584 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:16:44,585 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:16:44,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-12-07 00:16:44,604 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:44,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:44,604 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:44,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-12-07 00:16:44,605 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 00:16:44,612 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:16:44,612 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:16:44,612 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-12-07 00:16:44,612 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:16:44,616 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2021-12-07 00:16:44,616 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-12-07 00:16:44,624 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:16:44,642 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-12-07 00:16:44,642 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:44,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:44,643 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:44,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-12-07 00:16:44,644 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 00:16:44,652 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:16:44,653 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:16:44,653 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:16:44,653 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:16:44,654 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:16:44,654 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:16:44,657 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:16:44,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-12-07 00:16:44,675 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:44,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:44,676 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:44,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-12-07 00:16:44,677 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 00:16:44,684 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:16:44,685 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:16:44,685 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:16:44,685 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:16:44,689 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:16:44,689 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:16:44,698 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:16:44,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-12-07 00:16:44,716 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:44,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:44,717 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:44,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-12-07 00:16:44,718 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 00:16:44,724 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:16:44,725 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:16:44,725 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:16:44,725 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:16:44,726 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:16:44,726 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:16:44,728 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:16:44,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-12-07 00:16:44,746 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:44,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:44,747 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:44,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-12-07 00:16:44,748 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 00:16:44,755 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:16:44,755 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:16:44,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:16:44,755 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:16:44,756 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:16:44,756 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:16:44,762 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:16:44,780 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2021-12-07 00:16:44,780 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:44,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:44,781 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:44,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-12-07 00:16:44,782 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 00:16:44,789 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:16:44,790 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:16:44,790 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:16:44,790 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:16:44,795 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:16:44,795 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:16:44,810 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-07 00:16:44,825 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-12-07 00:16:44,825 INFO L444 ModelExtractionUtils]: 45 out of 55 variables were initially zero. Simplification set additionally 7 variables to zero. [2021-12-07 00:16:44,826 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:44,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:44,826 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:44,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-12-07 00:16:44,827 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-07 00:16:44,835 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-07 00:16:44,835 INFO L513 LassoAnalysis]: Proved termination. [2021-12-07 00:16:44,836 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrcat_~s#1.offset, v_rep(select #length ULTIMATE.start_cstrcat_~s#1.base)_1) = -1*ULTIMATE.start_cstrcat_~s#1.offset + 1*v_rep(select #length ULTIMATE.start_cstrcat_~s#1.base)_1 Supporting invariants [] [2021-12-07 00:16:44,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-12-07 00:16:44,882 INFO L297 tatePredicateManager]: 12 out of 12 supporting invariants were superfluous and have been removed [2021-12-07 00:16:44,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:16:44,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:44,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 00:16:44,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:16:44,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:44,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-07 00:16:44,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:16:44,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:16:44,926 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 [2021-12-07 00:16:44,926 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 15 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:16:44,936 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 15. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 40 states and 52 transitions. Complement of second has 6 states. [2021-12-07 00:16:44,936 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 [2021-12-07 00:16:44,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:16:44,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2021-12-07 00:16:44,937 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 12 letters. Loop has 3 letters. [2021-12-07 00:16:44,937 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 00:16:44,937 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 15 letters. Loop has 3 letters. [2021-12-07 00:16:44,937 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 00:16:44,937 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 12 letters. Loop has 6 letters. [2021-12-07 00:16:44,937 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 00:16:44,937 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 52 transitions. [2021-12-07 00:16:44,938 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-07 00:16:44,938 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 0 states and 0 transitions. [2021-12-07 00:16:44,938 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-07 00:16:44,938 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-07 00:16:44,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-07 00:16:44,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 00:16:44,938 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-07 00:16:44,938 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-07 00:16:44,939 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-07 00:16:44,939 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-07 00:16:44,939 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-07 00:16:44,939 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-07 00:16:44,939 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-07 00:16:44,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 12:16:44 BoogieIcfgContainer [2021-12-07 00:16:44,943 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-07 00:16:44,943 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-07 00:16:44,943 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-07 00:16:44,943 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-07 00:16:44,944 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:16:40" (3/4) ... [2021-12-07 00:16:44,945 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-07 00:16:44,945 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-07 00:16:44,946 INFO L158 Benchmark]: Toolchain (without parser) took 5327.83ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 77.1MB in the beginning and 49.2MB in the end (delta: 27.9MB). Peak memory consumption was 49.1MB. Max. memory is 16.1GB. [2021-12-07 00:16:44,946 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 75.5MB. Free memory was 51.2MB in the beginning and 51.2MB in the end (delta: 30.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 00:16:44,946 INFO L158 Benchmark]: CACSL2BoogieTranslator took 278.98ms. Allocated memory is still 113.2MB. Free memory was 76.8MB in the beginning and 81.8MB in the end (delta: -5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-07 00:16:44,947 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.19ms. Allocated memory is still 113.2MB. Free memory was 81.8MB in the beginning and 80.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 00:16:44,947 INFO L158 Benchmark]: Boogie Preprocessor took 19.53ms. Allocated memory is still 113.2MB. Free memory was 80.0MB in the beginning and 78.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 00:16:44,947 INFO L158 Benchmark]: RCFGBuilder took 242.95ms. Allocated memory is still 113.2MB. Free memory was 78.5MB in the beginning and 66.5MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-07 00:16:44,947 INFO L158 Benchmark]: BuchiAutomizer took 4749.09ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 66.5MB in the beginning and 49.2MB in the end (delta: 17.4MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. [2021-12-07 00:16:44,948 INFO L158 Benchmark]: Witness Printer took 2.25ms. Allocated memory is still 136.3MB. Free memory is still 49.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 00:16:44,949 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 75.5MB. Free memory was 51.2MB in the beginning and 51.2MB in the end (delta: 30.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 278.98ms. Allocated memory is still 113.2MB. Free memory was 76.8MB in the beginning and 81.8MB in the end (delta: -5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.19ms. Allocated memory is still 113.2MB. Free memory was 81.8MB in the beginning and 80.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.53ms. Allocated memory is still 113.2MB. Free memory was 80.0MB in the beginning and 78.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 242.95ms. Allocated memory is still 113.2MB. Free memory was 78.5MB in the beginning and 66.5MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 4749.09ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 66.5MB in the beginning and 49.2MB in the end (delta: 17.4MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. * Witness Printer took 2.25ms. Allocated memory is still 136.3MB. Free memory is still 49.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function length1 + -1 * i and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[nondetString2] + -1 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * s + unknown-#length-unknown[s] and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.7s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 4.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 30 states and ocurred in iteration 4. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 158 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 156 mSDsluCounter, 249 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 156 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 117 IncrementalHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 93 mSDtfsCounter, 117 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital162 mio100 ax111 hnf100 lsp83 ukn81 mio100 lsp58 div100 bol100 ite100 ukn100 eq169 hnf90 smp97 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms VariablesStem: 3 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 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! [2021-12-07 00:16:44,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2021-12-07 00:16:45,211 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d07dff6f-4826-44b7-9d4c-d61ba0ae206a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE